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Comparing ibx/trunk/runtime/IBDatabase.pas (file contents):
Revision 5 by tony, Fri Feb 18 16:26:16 2011 UTC vs.
Revision 80 by tony, Mon Jan 1 11:31:07 2018 UTC

# Line 24 | Line 24
24   {       Corporation. All Rights Reserved.                                }
25   {    Contributor(s): Jeff Overcash                                       }
26   {                                                                        }
27 + {    IBX For Lazarus (Firebird Express)                                  }
28 + {    Contributor: Tony Whyman, MWA Software http://www.mwasoftware.co.uk }
29 + {    Portions created by MWA Software are copyright McCallum Whyman      }
30 + {    Associates Ltd 2011                                                 }
31 + {                                                                        }
32   {************************************************************************}
33  
34   unit IBDatabase;
35  
36   {$Mode Delphi}
37  
38 + {$codepage UTF8}
39 +
40   interface
41  
42   uses
43 < {$IFDEF LINUX }
37 <  unix,
38 < {$ELSE}
39 < {$DEFINE HAS_SQLMONITOR}
43 > {$IFDEF WINDOWS }
44    Windows,
45 + {$ELSE}
46 +  unix,
47   {$ENDIF}
48 <  Dialogs, Controls, StdCtrls, SysUtils, Classes, Forms, ExtCtrls, IBHeader, IBExternals, DB,
43 <  IB, DBLoginDlg;
48 >  SysUtils, Classes, FPTimer, IBExternals, DB, IB, CustApp, IBTypes;
49  
50   const
51    DPBPrefix = 'isc_dpb_';
# Line 111 | Line 116 | const
116      'set_db_readonly',
117      'set_db_sql_dialect',
118      'gfix_attach',
119 <    'gstat_attach'
119 >    'gstat_attach',
120 >    'set_db_charset',
121 >    'gsec_attach',
122 >    'address_path' ,
123 >    'process_id',
124 >    'no_db_triggers',
125 >    'trusted_auth',
126 >    'process_name',
127 >    'trusted_role',
128 >    'org_filename',
129 >    'utf8_ilename',
130 >    'ext_call_depth'
131    );
132  
133    TPBPrefix = 'isc_tpb_';
# Line 135 | Line 151 | const
151      'rec_version',
152      'no_rec_version',
153      'restart_requests',
154 <    'no_auto_undo'
154 >    'no_auto_undo',
155 >    'lock_timeout'
156    );
157  
158   type
# Line 151 | Line 168 | type
168    { TIBDatabase }
169    TIBDataBase = class(TCustomConnection)
170    private
171 +    FAttachment: IAttachment;
172 +    FCreateDatabase: boolean;
173 +    FCreateIfNotExists: boolean;
174 +    FDefaultCharSetID: integer;
175 +    FDefaultCharSetName: RawByteString;
176 +    FDefaultCodePage: TSystemCodePage;
177 +    FDPB: IDPB;
178 +    FAllowStreamedConnected: boolean;
179      FHiddenPassword: string;
180 <    FIBLoaded: Boolean;
180 >    FOnCreateDatabase: TNotifyEvent;
181      FOnLogin: TIBDatabaseLoginEvent;
182 +    FSQLHourGlass: Boolean;
183      FTraceFlags: TTraceFlags;
184      FDBSQLDialect: Integer;
185      FSQLDialect: Integer;
186      FOnDialectDowngradeWarning: TNotifyEvent;
161    FCanTimeout: Boolean;
187      FSQLObjects: TList;
188      FTransactions: TList;
189      FDBName: TIBFileName;
190      FDBParams: TStrings;
191      FDBParamsChanged: Boolean;
167    FDPB: PChar;
168    FDPBLength: Short;
169    FHandle: TISC_DB_HANDLE;
170    FHandleIsShared: Boolean;
192      FOnIdleTimer: TNotifyEvent;
193      FDefaultTransaction: TIBTransaction;
194      FInternalTransaction: TIBTransaction;
195 <    FStreamedConnected: Boolean;
175 <    FTimer: TTimer;
195 >    FTimer: TFPTimer;
196      FUserNames: TStringList;
197      FDataSets: TList;
198 +    FLoginCalled: boolean;
199 +    FUseDefaultSystemCodePage: boolean;
200      procedure EnsureInactive;
201      function GetDBSQLDialect: Integer;
202      function GetSQLDialect: Integer;
# Line 184 | Line 206 | type
206      procedure DBParamsChanging(Sender: TObject);
207      function GetSQLObject(Index: Integer): TIBBase;
208      function GetSQLObjectCount: Integer;
187    function GetDBParamByDPB(const Idx: Integer): String;
209      function GetIdleTimer: Integer;
210      function GetTransaction(Index: Integer): TIBTransaction;
211      function GetTransactionCount: Integer;
212 <    function Login: Boolean;
212 >    function Login(var aDatabaseName: string): Boolean;
213      procedure SetDatabaseName(const Value: TIBFileName);
214      procedure SetDBParamByDPB(const Idx: Integer; Value: String);
215      procedure SetDBParams(Value: TStrings);
# Line 205 | Line 226 | type
226      procedure DoConnect; override;
227      procedure DoDisconnect; override;
228      function GetConnected: Boolean; override;
229 <    procedure Loaded; override;
229 >    procedure CheckStreamConnect;
230 >    procedure HandleException(Sender: TObject);
231      procedure Notification( AComponent: TComponent; Operation: TOperation); override;
232      function GetDataset(Index : longint) : TDataset; override;
233      function GetDataSetCount : Longint; override;
234 <
234 >    procedure ReadState(Reader: TReader); override;
235 >    procedure SetConnected (Value : boolean); override;
236    public
237      constructor Create(AOwner: TComponent); override;
238      destructor Destroy; override;
# Line 217 | Line 240 | type
240      procedure CloseDataSets;
241      procedure CheckActive;
242      procedure CheckInactive;
243 <    procedure CreateDatabase;
243 >    procedure CreateDatabase; overload;
244 >    procedure CreateDatabase(createDatabaseSQL: string); overload;
245      procedure DropDatabase;
246      procedure ForceClose;
247      procedure GetFieldNames(const TableName: string; List: TStrings);
# Line 225 | Line 249 | type
249      function IndexOfDBConst(st: String): Integer;
250      function TestConnected: Boolean;
251      procedure CheckDatabaseName;
228    function Call(ErrCode: ISC_STATUS; RaiseError: Boolean): ISC_STATUS;
252      function AddTransaction(TR: TIBTransaction): Integer;
253      function FindTransaction(TR: TIBTransaction): Integer;
254      function FindDefaultTransaction(): TIBTransaction;
255      procedure RemoveTransaction(Idx: Integer);
256      procedure RemoveTransactions;
234    procedure SetHandle(Value: TISC_DB_HANDLE);
257  
258 <    property Handle: TISC_DB_HANDLE read FHandle;
258 >    property Attachment: IAttachment read FAttachment;
259 >    property DBSQLDialect : Integer read FDBSQLDialect;
260      property IsReadOnly: Boolean read GetIsReadOnly;
238    property DBParamByDPB[const Idx: Integer]: String read GetDBParamByDPB
239                                                      write SetDBParamByDPB;
261      property SQLObjectCount: Integer read GetSQLObjectCount;
262      property SQLObjects[Index: Integer]: TIBBase read GetSQLObject;
242    property HandleIsShared: Boolean read FHandleIsShared;
263      property TransactionCount: Integer read GetTransactionCount;
264      property Transactions[Index: Integer]: TIBTransaction read GetTransaction;
265      property InternalTransaction: TIBTransaction read FInternalTransaction;
266 +    property DefaultCharSetName: RawByteString read FDefaultCharSetName;
267 +    property DefaultCharSetID: integer read FDefaultCharSetID;
268 +    property DefaultCodePage: TSystemCodePage read FDefaultCodePage;
269  
270    published
271      property Connected;
272 <    property StreamedConnected;
272 >    property CreateIfNotExists: boolean read FCreateIfNotExists write FCreateIfNotExists;
273 >    property AllowStreamedConnected: boolean read FAllowStreamedConnected
274 >             write FAllowStreamedConnected;
275      property DatabaseName: TIBFileName read FDBName write SetDatabaseName;
276      property Params: TStrings read FDBParams write SetDBParams;
277      property LoginPrompt default True;
# Line 254 | Line 279 | type
279                                                   write SetDefaultTransaction;
280      property IdleTimer: Integer read GetIdleTimer write SetIdleTimer;
281      property SQLDialect : Integer read GetSQLDialect write SetSQLDialect default 3;
282 <    property DBSQLDialect : Integer read FDBSQLDialect;
282 >    property SQLHourGlass: Boolean read FSQLHourGlass write FSQLHourGlass default true;
283      property TraceFlags: TTraceFlags read FTraceFlags write FTraceFlags;
284 +    property UseDefaultSystemCodePage: boolean read FUseDefaultSystemCodePage
285 +                                               write FUseDefaultSystemCodePage;
286      property AfterConnect;
287      property AfterDisconnect;
288      property BeforeConnect;
289      property BeforeDisconnect;
290 +    property OnCreateDatabase: TNotifyEvent read FOnCreateDatabase write FOnCreateDatabase;
291      property OnLogin: TIBDatabaseLoginEvent read FOnLogin write FOnLogin;
292      property OnIdleTimer: TNotifyEvent read FOnIdleTimer write FOnIdleTimer;
293      property OnDialectDowngradeWarning: TNotifyEvent read FOnDialectDowngradeWarning write FOnDialectDowngradeWarning;
294    end;
295  
296 <  { TIBTransaction }
296 >  TDefaultEndAction = TARollback..TACommit;
297  
298 <  TTransactionAction         = (TARollback, TACommit, TARollbackRetaining, TACommitRetaining);
298 >  { TIBTransaction }
299  
300    TIBTransaction = class(TComponent)
301    private
302 <    FIBLoaded: Boolean;
303 <    FCanTimeout         : Boolean;
302 >    FTransactionIntf: ITransaction;
303 >    FAfterDelete: TNotifyEvent;
304 >    FAfterEdit: TNotifyEvent;
305 >    FAfterExecQuery: TNotifyEvent;
306 >    FAfterInsert: TNotifyEvent;
307 >    FAfterPost: TNotifyEvent;
308 >    FAfterTransactionEnd: TNotifyEvent;
309 >    FBeforeTransactionEnd: TNotifyEvent;
310      FDatabases          : TList;
311 +    FOnStartTransaction: TNotifyEvent;
312      FSQLObjects         : TList;
313      FDefaultDatabase    : TIBDatabase;
279    FHandle             : TISC_TR_HANDLE;
280    FHandleIsShared     : Boolean;
314      FOnIdleTimer          : TNotifyEvent;
315      FStreamedActive     : Boolean;
316 <    FTPB                : PChar;
317 <    FTPBLength          : Short;
318 <    FTimer              : TTimer;
286 <    FDefaultAction      : TTransactionAction;
316 >    FTPB                : ITPB;
317 >    FTimer              : TFPTimer;
318 >    FDefaultAction      : TDefaultEndAction;
319      FTRParams           : TStrings;
320      FTRParamsChanged    : Boolean;
321 +    FInEndTransaction   : boolean;
322 +    FEndAction          : TTransactionAction;
323 +    procedure DoBeforeTransactionEnd;
324 +    procedure DoAfterTransactionEnd;
325 +    procedure DoOnStartTransaction;
326 +    procedure DoAfterExecQuery(Sender: TObject);
327 +    procedure DoAfterEdit(Sender: TObject);
328 +    procedure DoAfterDelete(Sender: TObject);
329 +    procedure DoAfterInsert(Sender: TObject);
330 +    procedure DoAfterPost(Sender: TObject);
331      procedure EnsureNotInTransaction;
332      procedure EndTransaction(Action: TTransactionAction; Force: Boolean);
333      function GetDatabase(Index: Integer): TIBDatabase;
# Line 296 | Line 338 | type
338      function GetIdleTimer: Integer;
339      procedure BeforeDatabaseDisconnect(DB: TIBDatabase);
340      procedure SetActive(Value: Boolean);
299    procedure SetDefaultAction(Value: TTransactionAction);
341      procedure SetDefaultDatabase(Value: TIBDatabase);
342      procedure SetIdleTimer(Value: Integer);
343      procedure SetTRParams(Value: TStrings);
# Line 309 | Line 350 | type
350  
351    protected
352      procedure Loaded; override;
312    procedure SetHandle(Value: TISC_TR_HANDLE);
353      procedure Notification( AComponent: TComponent; Operation: TOperation); override;
354  
355    public
356      constructor Create(AOwner: TComponent); override;
357      destructor Destroy; override;
318    function Call(ErrCode: ISC_STATUS; RaiseError: Boolean): ISC_STATUS;
358      procedure Commit;
359      procedure CommitRetaining;
360      procedure Rollback;
# Line 327 | Line 366 | type
366      function AddDatabase(db: TIBDatabase): Integer;
367      function FindDatabase(db: TIBDatabase): Integer;
368      function FindDefaultDatabase: TIBDatabase;
369 +    function GetEndAction: TTransactionAction;
370      procedure RemoveDatabase(Idx: Integer);
371      procedure RemoveDatabases;
372      procedure CheckDatabasesInList;
# Line 335 | Line 375 | type
375      property Databases[Index: Integer]: TIBDatabase read GetDatabase;
376      property SQLObjectCount: Integer read GetSQLObjectCount;
377      property SQLObjects[Index: Integer]: TIBBase read GetSQLObject;
338    property Handle: TISC_TR_HANDLE read FHandle;
339    property HandleIsShared: Boolean read FHandleIsShared;
378      property InTransaction: Boolean read GetInTransaction;
379 <    property TPB: PChar read FTPB;
380 <    property TPBLength: Short read FTPBLength;
379 >    property TransactionIntf: ITransaction read FTransactionIntf;
380 >    property TPB: ITPB read FTPB;
381    published
382      property Active: Boolean read GetInTransaction write SetActive;
383      property DefaultDatabase: TIBDatabase read FDefaultDatabase
384                                             write SetDefaultDatabase;
385      property IdleTimer: Integer read GetIdleTimer write SetIdleTimer default 0;
386 <    property DefaultAction: TTransactionAction read FDefaultAction write SetDefaultAction default taCommit;
386 >    property DefaultAction: TDefaultEndAction read FDefaultAction write FDefaultAction default taCommit;
387      property Params: TStrings read FTRParams write SetTRParams;
388      property OnIdleTimer: TNotifyEvent read FOnIdleTimer write FOnIdleTimer;
389 <  end;
389 >    property BeforeTransactionEnd: TNotifyEvent read FBeforeTransactionEnd
390 >                                             write FBeforeTransactionEnd;
391 >    property AfterTransactionEnd: TNotifyEvent read FAfterTransactionEnd
392 >                                            write FAfterTransactionEnd;
393 >    property OnStartTransaction: TNotifyEvent read FOnStartTransaction
394 >                                              write FOnStartTransaction;
395 >    property AfterExecQuery: TNotifyEvent read FAfterExecQuery
396 >                                              write FAfterExecQuery;
397 >    property AfterEdit: TNotifyEvent read FAfterEdit write FAfterEdit;
398 >    property AfterDelete: TNotifyEvent read FAfterDelete write FAfterDelete;
399 >    property AfterInsert: TNotifyEvent read FAfterInsert write FAfterInsert;
400 >    property AfterPost: TNotifyEvent read FAfterPost write FAfterPost;
401 >  end;
402 >
403 >  TTransactionEndEvent = procedure(Sender:TObject; Action: TTransactionAction) of object;
404 >  TBeforeDatabaseConnectEvent = procedure (Sender: TObject; DBParams: TStrings;
405 >                              var DBName: string) of object;
406  
407    { TIBBase }
408  
# Line 357 | Line 411 | type
411      connections. }
412    TIBBase = class(TObject)
413    protected
414 +    FBeforeDatabaseConnect: TBeforeDatabaseConnectEvent;
415      FDatabase: TIBDatabase;
416      FIndexInDatabase: Integer;
417      FTransaction: TIBTransaction;
# Line 364 | Line 419 | type
419      FOwner: TObject;
420      FBeforeDatabaseDisconnect: TNotifyEvent;
421      FAfterDatabaseDisconnect: TNotifyEvent;
422 +    FAfterDatabaseConnect: TNotifyEvent;
423      FOnDatabaseFree: TNotifyEvent;
424 <    FBeforeTransactionEnd: TNotifyEvent;
424 >    FBeforeTransactionEnd: TTransactionEndEvent;
425      FAfterTransactionEnd: TNotifyEvent;
426      FOnTransactionFree: TNotifyEvent;
427  
428 +    procedure DoBeforeDatabaseConnect(DBParams: TStrings;
429 +                              var DBName: string); virtual;
430 +    procedure DoAfterDatabaseConnect; virtual;
431      procedure DoBeforeDatabaseDisconnect; virtual;
432      procedure DoAfterDatabaseDisconnect; virtual;
433      procedure DoDatabaseFree; virtual;
434 <    procedure DoBeforeTransactionEnd; virtual;
434 >    procedure DoBeforeTransactionEnd(Action: TTransactionAction); virtual;
435      procedure DoAfterTransactionEnd; virtual;
436      procedure DoTransactionFree; virtual;
378    function GetDBHandle: PISC_DB_HANDLE; virtual;
379    function GetTRHandle: PISC_TR_HANDLE; virtual;
437      procedure SetDatabase(Value: TIBDatabase); virtual;
438      procedure SetTransaction(Value: TIBTransaction); virtual;
439    public
# Line 384 | Line 441 | type
441      destructor Destroy; override;
442      procedure CheckDatabase; virtual;
443      procedure CheckTransaction; virtual;
444 +    procedure DoAfterExecQuery(Sender: TObject); virtual;
445 +    procedure DoAfterEdit(Sender: TObject); virtual;
446 +    procedure DoAfterDelete(Sender: TObject); virtual;
447 +    procedure DoAfterInsert(Sender: TObject); virtual;
448 +    procedure DoAfterPost(Sender: TObject); virtual;
449 +    procedure HandleException(Sender: TObject);
450 +    procedure SetCursor;
451 +    procedure RestoreCursor;
452    public
453 +    property BeforeDatabaseConnect: TBeforeDatabaseConnectEvent read FBeforeDatabaseConnect
454 +                                                 write FBeforeDatabaseConnect;
455 +    property AfterDatabaseConnect: TNotifyEvent read FAfterDatabaseConnect
456 +                                                write FAfterDatabaseConnect;
457      property BeforeDatabaseDisconnect: TNotifyEvent read FBeforeDatabaseDisconnect
458                                                     write FBeforeDatabaseDisconnect;
459      property AfterDatabaseDisconnect: TNotifyEvent read FAfterDatabaseDisconnect
460                                                    write FAfterDatabaseDisconnect;
461      property OnDatabaseFree: TNotifyEvent read FOnDatabaseFree write FOnDatabaseFree;
462 <    property BeforeTransactionEnd: TNotifyEvent read FBeforeTransactionEnd write FBeforeTransactionEnd;
462 >    property BeforeTransactionEnd: TTransactionEndEvent read FBeforeTransactionEnd write FBeforeTransactionEnd;
463      property AfterTransactionEnd: TNotifyEvent read FAfterTransactionEnd write FAfterTransactionEnd;
464      property OnTransactionFree: TNotifyEvent read FOnTransactionFree write FOnTransactionFree;
465      property Database: TIBDatabase read FDatabase
466                                      write SetDatabase;
398    property DBHandle: PISC_DB_HANDLE read GetDBHandle;
467      property Owner: TObject read FOwner;
400    property TRHandle: PISC_TR_HANDLE read GetTRHandle;
468      property Transaction: TIBTransaction read FTransaction
469                                            write SetTransaction;
470    end;
471  
472 < procedure GenerateDPB(sl: TStrings; var DPB: string; var DPBLength: Short);
473 < procedure GenerateTPB(sl: TStrings; var TPB: string; var TPBLength: Short);
472 > function GenerateDPB(sl: TStrings): IDPB;
473 > function GenerateTPB(sl: TStrings): ITPB;
474  
475  
476   implementation
477  
478 < uses IBIntf,{$IFDEF HAS_SQLMONITOR}IBSQLMonitor,{$ENDIF} IBCustomDataSet, IBDatabaseInfo, IBSQL, IBUtils, typInfo;
478 > uses  IBSQLMonitor, IBCustomDataSet, IBDatabaseInfo, IBSQL, IBUtils,
479 >     typInfo, FBMessages, IBErrorCodes, RegExpr;
480  
481   { TIBDatabase }
482  
483 < constructor TIBDatabase.Create(AOwner: TComponent);
483 > constructor TIBDataBase.Create(AOwner: TComponent);
484   begin
485    inherited Create(AOwner);
418  FIBLoaded := False;
419  CheckIBLoaded;
420  FIBLoaded := True;
486    LoginPrompt := True;
487    FSQLObjects := TList.Create;
488    FTransactions := TList.Create;
489    FDBName := '';
490    FDBParams := TStringList.Create;
491 +  FSQLHourGlass := true;
492 +  if (AOwner <> nil) and
493 +     (AOwner is TCustomApplication) and
494 +     TCustomApplication(AOWner).ConsoleApplication then
495 +    LoginPrompt := false;
496    FDBParamsChanged := True;
497    TStringList(FDBParams).OnChange := DBParamsChange;
498    TStringList(FDBParams).OnChanging := DBParamsChanging;
499    FDPB := nil;
430  FHandle := nil;
500    FUserNames := nil;
501    FInternalTransaction := TIBTransaction.Create(self);
502    FInternalTransaction.DefaultDatabase := Self;
503 <  FTimer := TTimer.Create(Self);
503 >  FTimer := TFPTimer.Create(Self);
504    FTimer.Enabled := False;
505    FTimer.Interval := 0;
506    FTimer.OnTimer := TimeoutConnection;
# Line 439 | Line 508 | begin
508    FSQLDialect := 3;
509    FTraceFlags := [];
510    FDataSets := TList.Create;
511 +  CheckStreamConnect;
512   end;
513  
514 < destructor TIBDatabase.Destroy;
514 > destructor TIBDataBase.Destroy;
515   var
516    i: Integer;
517   begin
518 <  if FIBLoaded then
519 <  begin
520 <    IdleTimer := 0;
521 <    if FHandle <> nil then
522 <      ForceClose;
523 <    for i := 0 to FSQLObjects.Count - 1 do
524 <      if FSQLObjects[i] <> nil then
525 <        SQLObjects[i].DoDatabaseFree;
526 <    RemoveSQLObjects;
527 <    RemoveTransactions;
528 <    FInternalTransaction.Free;
529 <    FreeMem(FDPB);
530 <    FDPB := nil;
531 <    FDBParams.Free;
462 <    FSQLObjects.Free;
463 <    FUserNames.Free;
464 <    FTransactions.Free;
465 <  end;
518 >  IdleTimer := 0;
519 >  if FAttachment <> nil then
520 >    ForceClose;
521 >  for i := 0 to FSQLObjects.Count - 1 do
522 >    if FSQLObjects[i] <> nil then
523 >      SQLObjects[i].DoDatabaseFree;
524 >  RemoveSQLObjects;
525 >  RemoveTransactions;
526 >  FInternalTransaction.Free;
527 >  FDPB := nil;
528 >  FDBParams.Free;
529 >  FSQLObjects.Free;
530 >  FUserNames.Free;
531 >  FTransactions.Free;
532    FDataSets.Free;
533    inherited Destroy;
534   end;
535  
536 < function TIBDatabase.Call(ErrCode: ISC_STATUS;
471 <  RaiseError: Boolean): ISC_STATUS;
472 < begin
473 <  result := ErrCode;
474 <  FCanTimeout := False;
475 <  if RaiseError and (ErrCode > 0) then
476 <    IBDataBaseError;
477 < end;
478 <
479 < procedure TIBDatabase.CheckActive;
536 > procedure TIBDataBase.CheckActive;
537   begin
538    if StreamedConnected and (not Connected) then
539      Loaded;
540 <  if FHandle = nil then
540 >  if FAttachment = nil then
541      IBError(ibxeDatabaseClosed, [nil]);
542   end;
543  
544 < procedure TIBDatabase.EnsureInactive;
544 > procedure TIBDataBase.EnsureInactive;
545   begin
546    if csDesigning in ComponentState then
547    begin
548 <    if FHandle <> nil then
548 >    if FAttachment <> nil then
549        Close;
550    end
551   end;
552  
553 < procedure TIBDatabase.CheckInactive;
553 > procedure TIBDataBase.CheckInactive;
554   begin
555 <  if FHandle <> nil then
555 >  if FAttachment <> nil then
556      IBError(ibxeDatabaseOpen, [nil]);
557   end;
558  
559 < procedure TIBDatabase.CheckDatabaseName;
559 > procedure TIBDataBase.CheckDatabaseName;
560   begin
561 <  if (FDBName = '') then
561 >  if (Trim(FDBName) = '') then
562      IBError(ibxeDatabaseNameMissing, [nil]);
563   end;
564  
565 < function TIBDatabase.AddSQLObject(ds: TIBBase): Integer;
565 > function TIBDataBase.AddSQLObject(ds: TIBBase): Integer;
566   begin
567    result := 0;
568    if (ds.Owner is TIBCustomDataSet) then
569 <  {$IFDEF LINUX}
513 <      FDataSets.Add(TDataSet(ds.Owner));
514 <  {$ELSE}
515 <      RegisterClient(TDataSet(ds.Owner));
516 <  {$ENDIF}
569 >    FDataSets.Add(ds.Owner);
570    while (result < FSQLObjects.Count) and (FSQLObjects[result] <> nil) do
571      Inc(result);
572    if (result = FSQLObjects.Count) then
# Line 522 | Line 575 | begin
575      FSQLObjects[result] := ds;
576   end;
577  
578 < function TIBDatabase.AddTransaction(TR: TIBTransaction): Integer;
578 > function TIBDataBase.AddTransaction(TR: TIBTransaction): Integer;
579   begin
580    result := FindTransaction(TR);
581    if result <> -1 then
# Line 539 | Line 592 | begin
592      FTransactions[result] := TR;
593   end;
594  
595 < procedure TIBDatabase.DoDisconnect;
595 > procedure TIBDataBase.DoDisconnect;
596   begin
597    if Connected then
598      InternalClose(False);
599    FDBSQLDialect := 1;
600 +  FDefaultCharSetName := '';
601 +  FDefaultCharSetID := 0;
602 +  FDefaultCodePage := CP_NONE;
603   end;
604  
605 < procedure TIBDatabase.CreateDatabase;
550 < var
551 <  tr_handle: TISC_TR_HANDLE;
605 >  procedure TIBDataBase.CreateDatabase;
606   begin
607    CheckInactive;
608 <  tr_handle := nil;
609 <  Call(
610 <    isc_dsql_execute_immediate(StatusVector, @FHandle, @tr_handle, 0,
557 <                               PChar('CREATE DATABASE ''' + FDBName + ''' ' + {do not localize}
558 <                               Params.Text), SQLDialect, nil),
559 <    True);
608 >  CheckDatabaseName;
609 >  FCreateDatabase := true;
610 >  Connected := true;
611   end;
612  
613 < procedure TIBDatabase.DropDatabase;
613 > procedure TIBDataBase.CreateDatabase(createDatabaseSQL: string);
614 > var RegexObj: TRegExpr;
615 > begin
616 >  CheckInactive;
617 >  FAttachment := FirebirdAPI.CreateDatabase(createDatabaseSQL,FSQLDialect);
618 >  RegexObj := TRegExpr.Create;
619 >  try
620 >    {extact database file spec}
621 >    RegexObj.ModifierG := false; {turn off greedy matches}
622 >    RegexObj.Expression := '^ *CREATE +(DATABASE|SCHEMA) +''(.*)''';
623 >    if RegexObj.Exec(AnsiUpperCase(createDatabaseSQL)) then
624 >      FDBName := system.copy(createDatabaseSQL,RegexObj.MatchPos[2],RegexObj.MatchLen[2]);
625 >  finally
626 >    RegexObj.Free;
627 >  end;
628 >  if assigned(FOnCreateDatabase) and (FAttachment <> nil) then
629 >    OnCreateDatabase(self);
630 > end;
631 >
632 > procedure TIBDataBase.DropDatabase;
633   begin
634    CheckActive;
635 <  Call(isc_drop_database(StatusVector, @FHandle), True);
635 >  FAttachment.DropDatabase;
636 >  FAttachment := nil;
637   end;
638  
639 < procedure TIBDatabase.DBParamsChange(Sender: TObject);
639 > procedure TIBDataBase.DBParamsChange(Sender: TObject);
640   begin
641    FDBParamsChanged := True;
642   end;
643  
644 < procedure TIBDatabase.DBParamsChanging(Sender: TObject);
644 > procedure TIBDataBase.DBParamsChanging(Sender: TObject);
645   begin
646    EnsureInactive;
647    CheckInactive;
648   end;
649  
650 < function TIBDatabase.FindTransaction(TR: TIBTransaction): Integer;
650 > function TIBDataBase.FindTransaction(TR: TIBTransaction): Integer;
651   var
652    i: Integer;
653   begin
# Line 589 | Line 660 | begin
660      end;
661   end;
662  
663 < function TIBDatabase.FindDefaultTransaction(): TIBTransaction;
663 > function TIBDataBase.FindDefaultTransaction: TIBTransaction;
664   var
665    i: Integer;
666   begin
# Line 607 | Line 678 | begin
678    end;
679   end;
680  
681 < procedure TIBDatabase.ForceClose;
681 > procedure TIBDataBase.ForceClose;
682   begin
683    if Connected then
684      InternalClose(True);
685   end;
686  
687 < function TIBDatabase.GetConnected: Boolean;
687 > function TIBDataBase.GetConnected: Boolean;
688   begin
689 <  result := FHandle <> nil;
689 >  result := (FAttachment <> nil) and FAttachment.IsConnected;
690   end;
691  
692 < function TIBDatabase.GetSQLObject(Index: Integer): TIBBase;
692 > function TIBDataBase.GetSQLObject(Index: Integer): TIBBase;
693   begin
694    result := FSQLObjects[Index];
695   end;
696  
697 < function TIBDatabase.GetSQLObjectCount: Integer;
697 > function TIBDataBase.GetSQLObjectCount: Integer;
698   var
699    i: Integer;
700   begin
# Line 632 | Line 703 | begin
703      Inc(result);
704   end;
705  
706 < function TIBDatabase.GetDBParamByDPB(const Idx: Integer): String;
636 < var
637 <  ConstIdx, EqualsIdx: Integer;
638 < begin
639 <  if (Idx > 0) and (Idx <= isc_dpb_last_dpb_constant) then
640 <  begin
641 <    ConstIdx := IndexOfDBConst(DPBConstantNames[Idx]);
642 <    if ConstIdx = -1 then
643 <      result := ''
644 <    else
645 <    begin
646 <      result := Params[ConstIdx];
647 <      EqualsIdx := Pos('=', result); {mbcs ok}
648 <      if EqualsIdx = 0 then
649 <        result := ''
650 <      else
651 <        result := Copy(result, EqualsIdx + 1, Length(result));
652 <    end;
653 <  end
654 <  else
655 <    result := '';
656 < end;
657 <
658 < function TIBDatabase.GetIdleTimer: Integer;
706 > function TIBDataBase.GetIdleTimer: Integer;
707   begin
708    result := FTimer.Interval;
709   end;
710  
711 < function TIBDatabase.GetTransaction(Index: Integer): TIBTransaction;
711 > function TIBDataBase.GetTransaction(Index: Integer): TIBTransaction;
712   begin
713    result := FTransactions[Index];
714   end;
715  
716 < function TIBDatabase.GetTransactionCount: Integer;
716 > function TIBDataBase.GetTransactionCount: Integer;
717   var
718    i: Integer;
719   begin
# Line 675 | Line 723 | begin
723        Inc(result);
724   end;
725  
726 < function TIBDatabase.IndexOfDBConst(st: String): Integer;
726 > function TIBDataBase.IndexOfDBConst(st: String): Integer;
727   var
728    i, pos_of_str: Integer;
729   begin
# Line 691 | Line 739 | begin
739    end;
740   end;
741  
742 < procedure TIBDatabase.InternalClose(Force: Boolean);
742 > procedure TIBDataBase.InternalClose(Force: Boolean);
743   var
744    i: Integer;
745   begin
# Line 720 | Line 768 | begin
768      end;
769    end;
770  
771 <  if (not HandleIsShared) and
772 <     (Call(isc_detach_database(StatusVector, @FHandle), False) > 0) and
725 <     (not Force) then
726 <    IBDataBaseError
727 <  else
728 <  begin
729 <    FHandle := nil;
730 <    FHandleIsShared := False;
731 <  end;
771 >  FAttachment.Disconnect(Force);
772 >  FAttachment := nil;
773  
733  {$IFDEF HAS_SQLMONITOR}
774    if not (csDesigning in ComponentState) then
775      MonitorHook.DBDisconnect(Self);
736  {$ENDIF}
776  
777    for i := 0 to FSQLObjects.Count - 1 do
778      if FSQLObjects[i] <> nil then
779        SQLObjects[i].DoAfterDatabaseDisconnect;
780   end;
781  
782 < procedure TIBDatabase.Loaded;
782 > procedure TIBDataBase.CheckStreamConnect;
783   var
784    i: integer;
785   begin
786    try
787 <    if StreamedConnected and (not Connected) then
787 >    if not (csDesigning in ComponentState) and StreamedConnected and (not Connected) then
788      begin
750      inherited Loaded;
789        for i := 0 to FTransactions.Count - 1 do
790          if  FTransactions[i] <> nil then
791          begin
# Line 763 | Line 801 | begin
801           (FDefaultTransaction.FStreamedActive) and
802           (not FDefaultTransaction.InTransaction) then
803          FDefaultTransaction.StartTransaction;
804 <      FStreamedConnected := False;
804 >      StreamedConnected := False;
805      end;
806    except
807      if csDesigning in ComponentState then
808 <      Application.HandleException(Self)
808 >      HandleException(Self)
809      else
810        raise;
811    end;
812   end;
813  
814 < procedure TIBDatabase.Notification( AComponent: TComponent;
815 <                                        Operation: TOperation);
814 > procedure TIBDataBase.HandleException(Sender: TObject);
815 > var aParent: TComponent;
816 > begin
817 >  aParent := Owner;
818 >  while aParent <> nil do
819 >  begin
820 >    if aParent is TCustomApplication then
821 >    begin
822 >      TCustomApplication(aParent).HandleException(Sender);
823 >      Exit;
824 >    end;
825 >    aParent := aParent.Owner;
826 >  end;
827 >  SysUtils.ShowException(ExceptObject,ExceptAddr);
828 > end;
829 >
830 > procedure TIBDataBase.Notification(AComponent: TComponent;
831 >   Operation: TOperation);
832   var
833    i: Integer;
834   begin
# Line 788 | Line 842 | begin
842    end;
843   end;
844  
845 < function TIBDatabase.Login: Boolean;
845 > function TIBDataBase.Login(var aDatabaseName: string): Boolean;
846   var
847    IndexOfUser, IndexOfPassword: Integer;
848    Username, Password, OldPassword: String;
# Line 812 | Line 866 | var
866    end;
867  
868   begin
869 <  if Assigned(FOnLogin) then
869 >  Result := false;
870 >  if FLoginCalled then Exit;
871 >  FLoginCalled := true;
872 >  try
873 >  if Assigned(FOnLogin) and not (csDesigning in ComponentState) then
874    begin
875      result := True;
876      LoginParams := TStringList.Create;
# Line 820 | Line 878 | begin
878        LoginParams.Assign(Params);
879        FOnLogin(Self, LoginParams);
880        Params.Assign (LoginParams);
881 +      aDatabaseName := FDBName;
882        HidePassword;
883      finally
884        LoginParams.Free;
885      end;
886    end
887    else
888 +  if assigned(IBGUIInterface) then
889    begin
890      IndexOfUser := IndexOfDBConst(DPBConstantNames[isc_dpb_user_name]);
891      if IndexOfUser <> -1 then
# Line 840 | Line 900 | begin
900                                           Length(Params[IndexOfPassword]));
901        OldPassword := password;
902      end;
903 <    result := LoginDialogEx(DatabaseName, Username, Password, False);
903 >
904 >    result := IBGUIInterface.LoginDialogEx(aDatabaseName, Username, Password, False);
905      if result then
906      begin
907 <      if IndexOfUser = -1 then
908 <        Params.Add(DPBConstantNames[isc_dpb_user_name] + '=' + Username)
909 <      else
910 <        Params[IndexOfUser] := DPBConstantNames[isc_dpb_user_name] +
907 >      if Username <> '' then
908 >      begin
909 >        if IndexOfUser = -1 then
910 >          Params.Add(DPBConstantNames[isc_dpb_user_name] + '=' + Username)
911 >        else
912 >          Params[IndexOfUser] := DPBConstantNames[isc_dpb_user_name] +
913                                   '=' + Username;
914 +      end
915 +      else
916 +      if IndexOfUser <> -1 then
917 +        Params.Delete(IndexOfUser);
918        if (Password = OldPassword) then
919          FHiddenPassword := ''
920        else
# Line 857 | Line 924 | begin
924            HidePassword;
925        end;
926      end;
927 +  end
928 +  else
929 +  if LoginPrompt then
930 +     IBError(ibxeNoLoginDialog,[]);
931 +  finally
932 +    FLoginCalled := false
933    end;
934   end;
935  
936 < procedure TIBDatabase.DoConnect;
936 > procedure TIBDataBase.DoConnect;
937   var
865  DPB: String;
938    TempDBParams: TStrings;
939 <
939 >  I: integer;
940 >  aDBName: string;
941 >  Status: IStatus;
942 >  CharSetID: integer;
943   begin
944    CheckInactive;
945    CheckDatabaseName;
# Line 874 | Line 949 | begin
949      FDBParamsChanged := True;
950    end;
951    { Use builtin login prompt if requested }
952 <  if LoginPrompt and not Login then
952 >  aDBName := FDBName;
953 >  if (LoginPrompt or (csDesigning in ComponentState)) and not Login(aDBName) then
954      IBError(ibxeOperationCancelled, [nil]);
955 <  { Generate a new DPB if necessary }
956 <  if (FDBParamsChanged) then
957 <  begin
958 <    FDBParamsChanged := False;
959 <    if (not LoginPrompt) or (FHiddenPassword = '') then
960 <      GenerateDPB(FDBParams, DPB, FDPBLength)
961 <    else
962 <    begin
963 <      TempDBParams := TStringList.Create;
964 <      try
965 <       TempDBParams.Assign(FDBParams);
966 <       TempDBParams.Add('password=' + FHiddenPassword);
967 <       GenerateDPB(TempDBParams, DPB, FDPBLength);
968 <      finally
969 <       TempDBParams.Free;
970 <      end;
971 <    end;
972 <    IBAlloc(FDPB, 0, FDPBLength);
973 <    Move(DPB[1], FDPB[0], FDPBLength);
974 <  end;
975 <  if Call(isc_attach_database(StatusVector, Length(FDBName),
976 <                         PChar(FDBName), @FHandle,
977 <                         FDPBLength, FDPB), False) > 0 then
978 <  begin
979 <    FHandle := nil;
980 <    IBDataBaseError;
955 >
956 >  TempDBParams := TStringList.Create;
957 >  try
958 >   TempDBParams.Assign(FDBParams);
959 >   {$ifdef UNIX}
960 >   {See below for WINDOWS UseDefaultSystemCodePage}
961 >   if UseDefaultSystemCodePage then
962 >     TempDBParams.Values['lc_ctype'] :='UTF8';
963 >   {$endif}
964 >   {Opportunity to override defaults}
965 >   for i := 0 to FSQLObjects.Count - 1 do
966 >   begin
967 >       if FSQLObjects[i] <> nil then
968 >         SQLObjects[i].DoBeforeDatabaseConnect(TempDBParams,aDBName);
969 >   end;
970 >
971 >   repeat
972 >     { Generate a new DPB if necessary }
973 >     if (FDPB = nil) or FDBParamsChanged or (TempDBParams.Text <> FDBParams.Text) then
974 >     begin
975 >       FDBParamsChanged := False;
976 >       if (not LoginPrompt and not (csDesigning in ComponentState)) or (FHiddenPassword = '') then
977 >         FDPB := GenerateDPB(TempDBParams)
978 >       else
979 >       begin
980 >          TempDBParams.Values['password'] := FHiddenPassword;
981 >          FDPB := GenerateDPB(TempDBParams);
982 >       end;
983 >     end;
984 >
985 >     if FCreateDatabase then
986 >     begin
987 >       FCreateDatabase := false;
988 >       FAttachment := FirebirdAPI.CreateDatabase(aDBName,FDPB, false);
989 >       if assigned(FOnCreateDatabase) and (FAttachment <> nil) then
990 >         OnCreateDatabase(self);
991 >     end
992 >     else
993 >       FAttachment := FirebirdAPI.OpenDatabase(aDBName,FDPB,false);
994 >
995 >     if FAttachment = nil then
996 >     begin
997 >       Status := FirebirdAPI.GetStatus;
998 >       {$IFDEF UNIX}
999 >       if Pos(':',aDBName) = 0 then
1000 >       begin
1001 >           if ((Status.GetSQLCode = -901) and (Status.GetIBErrorCode = isc_random)) {Access permissions on firebird temp}
1002 >              or
1003 >              ((Status.GetSQLCode = -902) and (Status.GetIBErrorCode = isc_sys_request)) {Security DB Problem}
1004 >              or
1005 >              ((Status.GetSQLCode = -902) and (Status.GetIBErrorCode = isc_psw_attach)) {Security DB Problem}
1006 >              or
1007 >              ((Status.GetSQLCode = -904) and (Status.GetIBErrorCode = isc_lock_dir_access)) {Lock File Problem}
1008 >              then
1009 >              begin
1010 >                aDBName := 'localhost:' + aDBName;
1011 >                Continue;
1012 >             end
1013 >       end;
1014 >       {$ENDIF}
1015 >       if ((Status.GetSQLCode = -902) and (Status.GetIBErrorCode = isc_io_error)) {Database not found}
1016 >                        and CreateIfNotExists and not (csDesigning in ComponentState) then
1017 >         FCreateDatabase := true
1018 >       else
1019 >         raise EIBInterBaseError.Create(Status);
1020 >     end;
1021 >
1022 >     if UseDefaultSystemCodePage and (FAttachment <> nil) then
1023 >     {Only now can we check the codepage in use by the Attachment.
1024 >      If not that required then re-open with required LCLType.}
1025 >     begin
1026 >       {$ifdef WINDOWS}
1027 >       if Attachment.CodePage2CharSetID(GetACP,CharSetID) then
1028 >       {$else}
1029 >       if Attachment.CodePage2CharSetID(DefaultSystemCodePage,CharSetID) then
1030 >       {$endif}
1031 >       begin
1032 >         FDefaultCharSetName := Attachment.GetCharsetName(CharSetID);
1033 >         if FDefaultCharSetName <> AnsiUpperCase(TempDBParams.Values['lc_ctype']) then
1034 >         begin
1035 >           TempDBParams.Values['lc_ctype'] := FDefaultCharSetName;
1036 >           FDBParamsChanged := True;
1037 >           FAttachment := nil;
1038 >         end
1039 >       end
1040 >     end;
1041 >
1042 >   until FAttachment <> nil;
1043 >
1044 >   FDefaultCharSetName := AnsiUpperCase(TempDBParams.Values['lc_ctype']);
1045 >  finally
1046 >   TempDBParams.Free;
1047    end;
1048 +  if FDefaultCharSetName <> '' then
1049 +    Attachment.CharSetName2CharSetID(FDefaultCharSetName,FDefaultCharSetID);
1050 +  Attachment.CharSetID2CodePage(FDefaultCharSetID,FDefaultCodePage);
1051 +
1052 +  if not (csDesigning in ComponentState) then
1053 +    FDBName := aDBName; {Synchronise at run time}
1054    FDBSQLDialect := GetDBSQLDialect;
1055    ValidateClientSQLDialect;
1056 <  {$IFDEF HAS_SQLMONITOR}
1056 >  for i := 0 to FSQLObjects.Count - 1 do
1057 >  begin
1058 >      if FSQLObjects[i] <> nil then
1059 >        SQLObjects[i].DoAfterDatabaseConnect;
1060 >  end;
1061    if not (csDesigning in ComponentState) then
1062      MonitorHook.DBConnect(Self);
911  {$ENDIF}
1063   end;
1064  
1065 < procedure TIBDatabase.RemoveSQLObject(Idx: Integer);
1065 > procedure TIBDataBase.RemoveSQLObject(Idx: Integer);
1066   var
1067    ds: TIBBase;
1068   begin
# Line 921 | Line 1072 | begin
1072      FSQLObjects[Idx] := nil;
1073      ds.Database := nil;
1074      if (ds.owner is TDataSet) then
924    {$IFDEF LINUX}
1075        FDataSets.Remove(TDataSet(ds.Owner));
926    {$ELSE}
927      UnregisterClient(TDataSet(ds.Owner));
928    {$ENDIF}
1076    end;
1077   end;
1078  
1079 < procedure TIBDatabase.RemoveSQLObjects;
1079 > procedure TIBDataBase.RemoveSQLObjects;
1080   var
1081    i: Integer;
1082   begin
# Line 937 | Line 1084 | begin
1084    begin
1085      RemoveSQLObject(i);
1086      if (TIBBase(FSQLObjects[i]).owner is TDataSet) then
940    {$IFDEF LINUX}
1087        FDataSets.Remove(TDataSet(TIBBase(FSQLObjects[i]).owner));
942    {$ELSE}
943      UnregisterClient(TDataSet(TIBBase(FSQLObjects[i]).owner));
944    {$ENDIF}
1088    end;
1089   end;
1090  
1091 < procedure TIBDatabase.RemoveTransaction(Idx: Integer);
1091 > procedure TIBDataBase.RemoveTransaction(Idx: Integer);
1092   var
1093    TR: TIBTransaction;
1094   begin
# Line 959 | Line 1102 | begin
1102    end;
1103   end;
1104  
1105 < procedure TIBDatabase.RemoveTransactions;
1105 > procedure TIBDataBase.RemoveTransactions;
1106   var
1107    i: Integer;
1108   begin
# Line 967 | Line 1110 | begin
1110      RemoveTransaction(i);
1111   end;
1112  
1113 < procedure TIBDatabase.SetDatabaseName(const Value: TIBFileName);
1113 > procedure TIBDataBase.SetDatabaseName( const Value: TIBFileName);
1114   begin
1115    if FDBName <> Value then
1116    begin
# Line 977 | Line 1120 | begin
1120    end;
1121   end;
1122  
1123 < procedure TIBDatabase.SetDBParamByDPB(const Idx: Integer; Value: String);
1123 > procedure TIBDataBase.SetDBParamByDPB( const Idx: Integer; Value: String);
1124   var
1125    ConstIdx: Integer;
1126   begin
# Line 996 | Line 1139 | begin
1139    end;
1140   end;
1141  
1142 < procedure TIBDatabase.SetDBParams(Value: TStrings);
1142 > procedure TIBDataBase.SetDBParams(Value: TStrings);
1143   begin
1144    FDBParams.Assign(Value);
1145   end;
1146  
1147 < procedure TIBDatabase.SetDefaultTransaction(Value: TIBTransaction);
1147 > procedure TIBDataBase.SetDefaultTransaction(Value: TIBTransaction);
1148   var
1149    i: Integer;
1150   begin
# Line 1019 | Line 1162 | begin
1162    FDefaultTransaction := Value;
1163   end;
1164  
1165 < procedure TIBDatabase.SetHandle(Value: TISC_DB_HANDLE);
1023 < begin
1024 <  if HandleIsShared then
1025 <    Close
1026 <  else
1027 <    CheckInactive;
1028 <  FHandle := Value;
1029 <  FHandleIsShared := (Value <> nil);
1030 < end;
1031 <
1032 < procedure TIBDatabase.SetIdleTimer(Value: Integer);
1165 > procedure TIBDataBase.SetIdleTimer(Value: Integer);
1166   begin
1167    if Value < 0 then
1168      IBError(ibxeTimeoutNegative, [nil])
# Line 1048 | Line 1181 | begin
1181        end;
1182   end;
1183  
1184 < function TIBDatabase.TestConnected: Boolean;
1184 > function TIBDataBase.TestConnected: Boolean;
1185   var
1186    DatabaseInfo: TIBDatabaseInfo;
1187   begin
# Line 1069 | Line 1202 | begin
1202    end;
1203   end;
1204  
1205 < procedure TIBDatabase.TimeoutConnection(Sender: TObject);
1205 > procedure TIBDataBase.TimeoutConnection(Sender: TObject);
1206   begin
1207    if Connected then
1208    begin
1209 <    if FCanTimeout then
1209 >    if not FAttachment.HasActivity then
1210      begin
1211        ForceClose;
1212        if Assigned(FOnIdleTimer) then
1213          FOnIdleTimer(Self);
1214      end
1082    else
1083      FCanTimeout := True;
1215    end;
1216   end;
1217  
1218 < function TIBDatabase.GetIsReadOnly: Boolean;
1218 > function TIBDataBase.GetIsReadOnly: Boolean;
1219   var
1220    DatabaseInfo: TIBDatabaseInfo;
1221   begin
# Line 1102 | Line 1233 | begin
1233    DatabaseInfo.Free;
1234   end;
1235  
1236 < function TIBDatabase.GetSQLDialect: Integer;
1236 > function TIBDataBase.GetSQLDialect: Integer;
1237   begin
1238    Result := FSQLDialect;
1239   end;
1240  
1241 < procedure TIBDatabase.SetSQLDialect(const Value: Integer);
1241 >
1242 > procedure TIBDataBase.SetSQLDialect( const Value: Integer);
1243   begin
1244    if (Value < 1) then IBError(ibxeSQLDialectInvalid, [nil]);
1245 <  if ((FHandle = nil) or (Value <= FDBSQLDialect))  then
1245 >  if ((FAttachment = nil) or (Value <= FDBSQLDialect))  then
1246      FSQLDialect := Value
1247    else
1248      IBError(ibxeSQLDialectInvalid, [nil]);
1249   end;
1250  
1251 < function TIBDatabase.GetDBSQLDialect: Integer;
1251 > function TIBDataBase.GetDBSQLDialect: Integer;
1252   var
1253    DatabaseInfo: TIBDatabaseInfo;
1254   begin
# Line 1126 | Line 1258 | begin
1258    DatabaseInfo.Free;
1259   end;
1260  
1261 < procedure TIBDatabase.ValidateClientSQLDialect;
1261 > procedure TIBDataBase.ValidateClientSQLDialect;
1262   begin
1263    if (FDBSQLDialect < FSQLDialect) then
1264    begin
# Line 1136 | Line 1268 | begin
1268    end;
1269   end;
1270  
1271 < procedure TIBDatabase.ApplyUpdates(const DataSets: array of TDataSet);
1271 > procedure TIBDataBase.ApplyUpdates( const DataSets: array of TDataSet);
1272   var
1273    I: Integer;
1274    DS: TIBCustomDataSet;
# Line 1162 | Line 1294 | begin
1294    TR.CommitRetaining;
1295   end;
1296  
1297 < procedure TIBDatabase.CloseDataSets;
1297 > procedure TIBDataBase.CloseDataSets;
1298   var
1299    i: Integer;
1300   begin
# Line 1171 | Line 1303 | begin
1303        DataSets[i].close;
1304   end;
1305  
1306 < function TIBDatabase.GetDataset(Index : longint) : TDataset;
1306 > function TIBDataBase.GetDataset(Index: longint): TDataset;
1307   begin
1308    if (Index >= 0) and (Index < FDataSets.Count) then
1309      Result := TDataSet(FDataSets[Index])
# Line 1179 | Line 1311 | begin
1311      raise Exception.Create('Invalid Index to DataSets');
1312   end;
1313  
1314 < function TIBDatabase.GetDataSetCount : Longint;
1314 > function TIBDataBase.GetDataSetCount: Longint;
1315   begin
1316    Result := FDataSets.Count;
1317   end;
1318  
1319 < procedure TIBDatabase.GetFieldNames(const TableName: string; List: TStrings);
1319 > procedure TIBDataBase.ReadState(Reader: TReader);
1320 > begin
1321 >  FDBParams.Clear;
1322 >  inherited ReadState(Reader);
1323 > end;
1324 >
1325 > procedure TIBDataBase.SetConnected(Value: boolean);
1326 > begin
1327 >  if StreamedConnected and not AllowStreamedConnected then
1328 >  begin
1329 >    StreamedConnected := false;
1330 >    Value := false
1331 >  end;
1332 >  inherited SetConnected(Value);
1333 > end;
1334 >
1335 > procedure TIBDataBase.GetFieldNames( const TableName: string; List: TStrings);
1336   var
1337    Query: TIBSQL;
1338   begin
# Line 1213 | Line 1361 | begin
1361        BeginUpdate;
1362        try
1363          Clear;
1364 <        while (not Query.EOF) and (Query.Next <> nil) do
1365 <          List.Add(TrimRight(Query.Current.ByName('RDB$FIELD_NAME').AsString)); {do not localize}
1364 >        while (not Query.EOF) and Query.Next  do
1365 >          List.Add(TrimRight(Query.FieldByName('RDB$FIELD_NAME').AsString)); {do not localize}
1366        finally
1367          EndUpdate;
1368        end;
# Line 1225 | Line 1373 | begin
1373    end;
1374   end;
1375  
1376 < procedure TIBDatabase.GetTableNames(List: TStrings; SystemTables: Boolean);
1376 > procedure TIBDataBase.GetTableNames(List: TStrings; SystemTables: Boolean);
1377   var
1378    Query : TIBSQL;
1379   begin
# Line 1253 | Line 1401 | begin
1401          BeginUpdate;
1402          try
1403            Clear;
1404 <          while (not Query.EOF) and (Query.Next <> nil) do
1405 <            List.Add(TrimRight(Query.Current[0].AsString));
1404 >          while (not Query.EOF) and Query.Next  do
1405 >            List.Add(TrimRight(Query.Fields[0].AsString));
1406          finally
1407            EndUpdate;
1408          end;
# Line 1271 | Line 1419 | end;
1419   constructor TIBTransaction.Create(AOwner: TComponent);
1420   begin
1421    inherited Create(AOwner);
1274  FIBLoaded := False;
1275  CheckIBLoaded;
1276  FIBLoaded := True;
1277  CheckIBLoaded;
1422    FDatabases := TList.Create;
1423    FSQLObjects := TList.Create;
1280  FHandle := nil;
1424    FTPB := nil;
1282  FTPBLength := 0;
1425    FTRParams := TStringList.Create;
1426    FTRParamsChanged := True;
1427    TStringList(FTRParams).OnChange := TRParamsChange;
1428    TStringList(FTRParams).OnChanging := TRParamsChanging;
1429 <  FTimer := TTimer.Create(Self);
1429 >  FTimer := TFPTimer.Create(Self);
1430    FTimer.Enabled := False;
1431    FTimer.Interval := 0;
1432    FTimer.OnTimer := TimeoutTransaction;
# Line 1295 | Line 1437 | destructor TIBTransaction.Destroy;
1437   var
1438    i: Integer;
1439   begin
1440 <  if FIBLoaded then
1441 <  begin
1442 <    if InTransaction then
1443 <      EndTransaction(FDefaultAction, True);
1444 <    for i := 0 to FSQLObjects.Count - 1 do
1445 <      if FSQLObjects[i] <> nil then
1446 <        SQLObjects[i].DoTransactionFree;
1447 <    RemoveSQLObjects;
1448 <    RemoveDatabases;
1449 <    FreeMem(FTPB);
1450 <    FTPB := nil;
1309 <    FTRParams.Free;
1310 <    FSQLObjects.Free;
1311 <    FDatabases.Free;
1312 <  end;
1440 >  if InTransaction then
1441 >    EndTransaction(FDefaultAction, True);
1442 >  for i := 0 to FSQLObjects.Count - 1 do
1443 >    if FSQLObjects[i] <> nil then
1444 >      SQLObjects[i].DoTransactionFree;
1445 >  RemoveSQLObjects;
1446 >  RemoveDatabases;
1447 >  FTPB := nil;
1448 >  FTRParams.Free;
1449 >  FSQLObjects.Free;
1450 >  FDatabases.Free;
1451    inherited Destroy;
1452   end;
1453  
1316 function TIBTransaction.Call(ErrCode: ISC_STATUS;
1317  RaiseError: Boolean): ISC_STATUS;
1318 var
1319  i: Integer;
1320 begin
1321  result := ErrCode;
1322  for i := 0 to FDatabases.Count - 1 do if FDatabases[i] <> nil then
1323    Databases[i].FCanTimeout := False;
1324  FCanTimeout := False;
1325  if RaiseError and (result > 0) then
1326    IBDataBaseError;
1327 end;
1328
1454   procedure TIBTransaction.CheckDatabasesInList;
1455   begin
1456    if GetDatabaseCount = 0 then
# Line 1336 | Line 1461 | procedure TIBTransaction.CheckInTransact
1461   begin
1462    if FStreamedActive and (not InTransaction) then
1463      Loaded;
1464 <  if (FHandle = nil) then
1464 >  if (TransactionIntf = nil) then
1465      IBError(ibxeNotInTransaction, [nil]);
1466   end;
1467  
1468 + procedure TIBTransaction.DoBeforeTransactionEnd;
1469 + begin
1470 +  if Assigned(FBeforeTransactionEnd) then
1471 +    FBeforeTransactionEnd(self);
1472 + end;
1473 +
1474 + procedure TIBTransaction.DoAfterTransactionEnd;
1475 + begin
1476 +  if Assigned(FAfterTransactionEnd) then
1477 +    FAfterTransactionEnd(self);
1478 + end;
1479 +
1480 + procedure TIBTransaction.DoOnStartTransaction;
1481 + begin
1482 +  if assigned(FOnStartTransaction) then
1483 +    OnStartTransaction(self);
1484 + end;
1485 +
1486 + procedure TIBTransaction.DoAfterExecQuery(Sender: TObject);
1487 + begin
1488 +  if assigned(FAfterExecQuery) then
1489 +    AfterExecQuery(Sender);
1490 + end;
1491 +
1492 + procedure TIBTransaction.DoAfterEdit(Sender: TObject);
1493 + begin
1494 +  if assigned(FAfterEdit) then
1495 +    AfterEdit(Sender);
1496 + end;
1497 +
1498 + procedure TIBTransaction.DoAfterDelete(Sender: TObject);
1499 + begin
1500 +  if assigned(FAfterDelete) then
1501 +    AfterDelete(Sender);
1502 + end;
1503 +
1504 + procedure TIBTransaction.DoAfterInsert(Sender: TObject);
1505 + begin
1506 +  if assigned(FAfterInsert) then
1507 +    AfterInsert(Sender);
1508 + end;
1509 +
1510 + procedure TIBTransaction.DoAfterPost(Sender: TObject);
1511 + begin
1512 +  if assigned(FAfterPost) then
1513 +    AfterPost(Sender);
1514 + end;
1515 +
1516   procedure TIBTransaction.EnsureNotInTransaction;
1517   begin
1518    if csDesigning in ComponentState then
1519    begin
1520 <    if FHandle <> nil then
1520 >    if TransactionIntf <> nil then
1521        Rollback;
1522    end;
1523   end;
1524  
1525   procedure TIBTransaction.CheckNotInTransaction;
1526   begin
1527 <  if (FHandle <> nil) then
1527 >  if (TransactionIntf <> nil) and  TransactionIntf.InTransaction then
1528      IBError(ibxeInTransaction, [nil]);
1529   end;
1530  
# Line 1360 | Line 1533 | var
1533    i: Integer;
1534    NilFound: Boolean;
1535   begin
1536 +  EnsureNotInTransaction;
1537 +  CheckNotInTransaction;
1538 +  FTransactionIntf := nil;
1539 +
1540    i := FindDatabase(db);
1541    if i <> -1 then
1542    begin
# Line 1410 | Line 1587 | end;
1587   procedure TIBTransaction.EndTransaction(Action: TTransactionAction;
1588    Force: Boolean);
1589   var
1413  status: ISC_STATUS;
1590    i: Integer;
1591   begin
1592    CheckInTransaction;
1593 +  if FInEndTransaction then Exit;
1594 +  FInEndTransaction := true;
1595 +  FEndAction := Action;
1596 +  try
1597    case Action of
1598      TARollback, TACommit:
1599      begin
1600 <      if (HandleIsShared) and
1601 <         (Action <> FDefaultAction) and
1602 <         (not Force) then
1603 <        IBError(ibxeCantEndSharedTransaction, [nil]);
1600 >      try
1601 >        DoBeforeTransactionEnd;
1602 >      except on E: EIBInterBaseError do
1603 >        begin
1604 >          if not Force then
1605 >            raise;
1606 >        end;
1607 >      end;
1608 >
1609        for i := 0 to FSQLObjects.Count - 1 do if FSQLObjects[i] <> nil then
1610 <        SQLObjects[i].DoBeforeTransactionEnd;
1610 >      try
1611 >        SQLObjects[i].DoBeforeTransactionEnd(Action);
1612 >      except on E: EIBInterBaseError do
1613 >        begin
1614 >          if not Force then
1615 >              raise;
1616 >          end;
1617 >      end;
1618 >
1619        if InTransaction then
1620        begin
1621 <        if HandleIsShared then
1622 <        begin
1430 <          FHandle := nil;
1431 <          FHandleIsShared := False;
1432 <          status := 0;
1433 <        end
1621 >        if (Action = TARollback) then
1622 >            FTransactionIntf.Rollback(Force)
1623          else
1624 <          if (Action = TARollback) then
1625 <            status := Call(isc_rollback_transaction(StatusVector, @FHandle), False)
1626 <          else
1627 <            status := Call(isc_commit_transaction(StatusVector, @FHandle), False);
1628 <        if ((Force) and (status > 0)) then
1629 <          status := Call(isc_rollback_transaction(StatusVector, @FHandle), False);
1630 <        if Force then
1631 <          FHandle := nil
1632 <        else
1633 <          if (status > 0) then
1634 <            IBDataBaseError;
1635 <        for i := 0 to FSQLObjects.Count - 1 do if FSQLObjects[i] <> nil then
1636 <          SQLObjects[i].DoAfterTransactionEnd;
1624 >        try
1625 >          FTransactionIntf.Commit;
1626 >        except on E: EIBInterBaseError do
1627 >          begin
1628 >            if Force then
1629 >              FTransactionIntf.Rollback(Force)
1630 >            else
1631 >              raise;
1632 >          end;
1633 >        end;
1634 >
1635 >          for i := 0 to FSQLObjects.Count - 1 do if FSQLObjects[i] <> nil then
1636 >          try
1637 >            SQLObjects[i].DoAfterTransactionEnd;
1638 >          except on E: EIBInterBaseError do
1639 >            begin
1640 >              if not Force then
1641 >                raise;
1642 >            end;
1643 >          end;
1644 >        try
1645 >          DoAfterTransactionEnd;
1646 >        except on E: EIBInterBaseError do
1647 >          begin
1648 >            if not Force then
1649 >              raise;
1650 >          end;
1651 >        end;
1652        end;
1653      end;
1654      TACommitRetaining:
1655 <      Call(isc_commit_retaining(StatusVector, @FHandle), True);
1655 >      FTransactionIntf.CommitRetaining;
1656 >
1657      TARollbackRetaining:
1658 <      Call(isc_rollback_retaining(StatusVector, @FHandle), True);
1658 >      FTransactionIntf.RollbackRetaining;
1659    end;
1455  {$IFDEF HAS_SQLMONITOR}
1660    if not (csDesigning in ComponentState) then
1661    begin
1662      case Action of
# Line 1466 | Line 1670 | begin
1670          MonitorHook.TRRollbackRetaining(Self);
1671      end;
1672    end;
1673 <  {$ENDIF}
1673 >  finally
1674 >    FInEndTransaction := false
1675 >  end;
1676   end;
1677  
1678   function TIBTransaction.GetDatabase(Index: Integer): TIBDatabase;
# Line 1501 | Line 1707 | end;
1707  
1708   function TIBTransaction.GetInTransaction: Boolean;
1709   begin
1710 <  result := (FHandle <> nil);
1710 >  result := (TransactionIntf <> nil) and TransactionIntf.InTransaction;
1711   end;
1712  
1713   function TIBTransaction.FindDatabase(db: TIBDatabase): Integer;
# Line 1534 | Line 1740 | begin
1740    end;
1741   end;
1742  
1743 + function TIBTransaction.GetEndAction: TTransactionAction;
1744 + begin
1745 +  if FInEndTransaction then
1746 +     Result := FEndAction
1747 +  else
1748 +     IBError(ibxeIB60feature, [nil])
1749 + end;
1750 +
1751  
1752   function TIBTransaction.GetIdleTimer: Integer;
1753   begin
# Line 1549 | Line 1763 | procedure TIBTransaction.BeforeDatabaseD
1763   begin
1764    if InTransaction then
1765      EndTransaction(FDefaultAction, True);
1766 +  FTransactionIntf := nil;
1767   end;
1768  
1769   procedure TIBTransaction.RemoveDatabase(Idx: Integer);
# Line 1557 | Line 1772 | var
1772   begin
1773    if ((Idx >= 0) and (FDatabases[Idx] <> nil)) then
1774    begin
1775 +    EnsureNotInTransaction;
1776 +    CheckNotInTransaction;
1777 +    FTransactionIntf := nil;
1778 +
1779      DB := Databases[Idx];
1780      FDatabases[Idx] := nil;
1781      DB.RemoveTransaction(DB.FindTransaction(Self));
# Line 1569 | Line 1788 | procedure TIBTransaction.RemoveDatabases
1788   var
1789    i: Integer;
1790   begin
1791 +  EnsureNotInTransaction;
1792 +  CheckNotInTransaction;
1793 +  FTransactionIntf := nil;
1794 +
1795    for i := 0 to FDatabases.Count - 1 do if FDatabases[i] <> nil then
1796      RemoveDatabase(i);
1797   end;
# Line 1615 | Line 1838 | begin
1838          Rollback;
1839   end;
1840  
1618 procedure TIBTransaction.SetDefaultAction(Value: TTransactionAction);
1619 begin
1620 (*  if (Value = taRollbackRetaining) and (GetIBClientVersion < 6) then
1621    IBError(ibxeIB60feature, [nil]);*)
1622  FDefaultAction := Value;
1623 end;
1624
1841   procedure TIBTransaction.SetDefaultDatabase(Value: TIBDatabase);
1842   var
1843    i: integer;
# Line 1639 | Line 1855 | begin
1855      for i := 0 to FSQLObjects.Count - 1 do
1856        if (FSQLObjects[i] <> nil) and
1857           (TIBBase(FSQLObjects[i]).Database = nil) then
1858 <        SetOrdProp(TIBBase(FSQLObjects[i]).Owner, 'Database', Integer(Value));
1858 >         SetObjectProp(TIBBase(FSQLObjects[i]).Owner, 'Database', Value);
1859    end;
1860    FDefaultDatabase := Value;
1861   end;
1862  
1647 procedure TIBTransaction.SetHandle(Value: TISC_TR_HANDLE);
1648 begin
1649  if (HandleIsShared) then
1650    EndTransaction(DefaultAction, True)
1651  else
1652    CheckNotInTransaction;
1653  FHandle := Value;
1654  FHandleIsShared := (Value <> nil);
1655 end;
1656
1863   procedure TIBTransaction.Notification( AComponent: TComponent;
1864                                          Operation: TOperation);
1865   var
# Line 1695 | Line 1901 | end;
1901  
1902   procedure TIBTransaction.StartTransaction;
1903   var
1698  pteb: PISC_TEB_ARRAY;
1699  TPB: String;
1904    i: Integer;
1905 +  Attachments: array of IAttachment;
1906 +  ValidDatabaseCount: integer;
1907   begin
1908    CheckNotInTransaction;
1909    CheckDatabasesInList;
1910 +  if TransactionIntf <> nil then
1911 +  begin
1912 +    TransactionIntf.Start(DefaultAction);
1913 +    Exit;
1914 +  end;
1915 +
1916    for i := 0 to FDatabases.Count - 1 do
1917     if  FDatabases[i] <> nil then
1918     begin
1919       with TIBDatabase(FDatabases[i]) do
1920       if not Connected then
1921 <       if FStreamedConnected then
1921 >       if StreamedConnected then
1922         begin
1923           Open;
1924 <         FStreamedConnected := False;
1924 >         StreamedConnected := False;
1925         end
1926         else
1927           IBError(ibxeDatabaseClosed, [nil]);
# Line 1717 | Line 1929 | begin
1929    if FTRParamsChanged then
1930    begin
1931      FTRParamsChanged := False;
1932 <    GenerateTPB(FTRParams, TPB, FTPBLength);
1721 <    if FTPBLength > 0 then
1722 <    begin
1723 <      IBAlloc(FTPB, 0, FTPBLength);
1724 <      Move(TPB[1], FTPB[0], FTPBLength);
1725 <    end;
1932 >    FTPB :=  GenerateTPB(FTRParams);
1933    end;
1934  
1935 <  pteb := nil;
1936 <  IBAlloc(pteb, 0, DatabaseCount * SizeOf(TISC_TEB));
1937 <  try
1938 <    for i := 0 to DatabaseCount - 1 do if Databases[i] <> nil then
1939 <    begin
1940 <      pteb^[i].db_handle := @(Databases[i].Handle);
1941 <      pteb^[i].tpb_length := FTPBLength;
1942 <      pteb^[i].tpb_address := FTPB;
1943 <    end;
1944 <    if Call(isc_start_multiple(StatusVector, @FHandle,
1945 <                               DatabaseCount, PISC_TEB(pteb)), False) > 0 then
1946 <    begin
1947 <      FHandle := nil;
1948 <      IBDataBaseError;
1742 <    end;
1743 <  {$IFDEF HAS_SQLMONITOR}
1744 <    if not (csDesigning in ComponentState) then
1745 <      MonitorHook.TRStart(Self);
1746 <  {$ENDIF}
1747 <  finally
1748 <    FreeMem(pteb);
1935 >  ValidDatabaseCount := 0;
1936 >  for i := 0 to DatabaseCount - 1 do
1937 >    if Databases[i] <> nil then Inc(ValidDatabaseCount);
1938 >
1939 >  if ValidDatabaseCount = 1 then
1940 >    FTransactionIntf := Databases[0].Attachment.StartTransaction(FTPB,DefaultAction)
1941 >  else
1942 >  begin
1943 >    SetLength(Attachments,ValidDatabaseCount);
1944 >    for i := 0 to DatabaseCount - 1 do
1945 >      if Databases[i] <> nil then
1946 >        Attachments[i] := Databases[i].Attachment;
1947 >
1948 >    FTransactionIntf := FirebirdAPI.StartTransaction(Attachments,FTPB,DefaultAction);
1949    end;
1950 +
1951 +  if not (csDesigning in ComponentState) then
1952 +      MonitorHook.TRStart(Self);
1953 +  DoOnStartTransaction;
1954   end;
1955  
1956   procedure TIBTransaction.TimeoutTransaction(Sender: TObject);
1957   begin
1958    if InTransaction then
1959    begin
1960 <    if FCanTimeout then
1960 >    if not TransactionIntf.HasActivity then
1961      begin
1962        EndTransaction(FDefaultAction, True);
1963        if Assigned(FOnIdleTimer) then
1964          FOnIdleTimer(Self);
1965      end
1762    else
1763      FCanTimeout := True;
1966    end;
1967   end;
1968  
# Line 1773 | Line 1975 | procedure TIBTransaction.TRParamsChangin
1975   begin
1976    EnsureNotInTransaction;
1977    CheckNotInTransaction;
1978 +  FTransactionIntf := nil;
1979   end;
1980  
1981   { TIBBase }
# Line 1788 | Line 1991 | begin
1991    inherited Destroy;
1992   end;
1993  
1994 + procedure TIBBase.HandleException(Sender: TObject);
1995 + begin
1996 +  if assigned(Database) then
1997 +     Database.HandleException(Sender)
1998 +  else
1999 +     SysUtils.ShowException(ExceptObject,ExceptAddr);
2000 + end;
2001 +
2002 + procedure TIBBase.SetCursor;
2003 + begin
2004 +  if Assigned(Database) and not Database.SQLHourGlass then
2005 +     Exit;
2006 +  if assigned(IBGUIInterface) then
2007 +     IBGUIInterface.SetCursor;
2008 + end;
2009 +
2010 + procedure TIBBase.RestoreCursor;
2011 + begin
2012 +  if Assigned(Database) and not Database.SQLHourGlass then
2013 +     Exit;
2014 +  if assigned(IBGUIInterface) then
2015 +     IBGUIInterface.RestoreCursor;
2016 + end;
2017 +
2018   procedure TIBBase.CheckDatabase;
2019   begin
2020    if (FDatabase = nil) then
# Line 1802 | Line 2029 | begin
2029    FTransaction.CheckInTransaction;
2030   end;
2031  
2032 < function TIBBase.GetDBHandle: PISC_DB_HANDLE;
2032 > procedure TIBBase.DoBeforeDatabaseConnect(DBParams: TStrings; var DBName: string
2033 >  );
2034   begin
2035 <  CheckDatabase;
2036 <  result := @FDatabase.Handle;
2035 >  if assigned(FBeforeDatabaseConnect) then
2036 >    BeforeDatabaseConnect(self,DBParams,DBName);
2037   end;
2038  
2039 < function TIBBase.GetTRHandle: PISC_TR_HANDLE;
2039 > procedure TIBBase.DoAfterDatabaseConnect;
2040   begin
2041 <  CheckTransaction;
2042 <  result := @FTransaction.Handle;
2041 >  if assigned(FAfterDatabaseConnect) then
2042 >    AfterDatabaseConnect(self);
2043   end;
2044  
2045   procedure TIBBase.DoBeforeDatabaseDisconnect;
# Line 1834 | Line 2062 | begin
2062    SetTransaction(nil);
2063   end;
2064  
2065 < procedure TIBBase.DoBeforeTransactionEnd;
2065 > procedure TIBBase.DoBeforeTransactionEnd(Action: TTransactionAction);
2066   begin
2067    if Assigned(BeforeTransactionEnd) then
2068 <    BeforeTransactionEnd(Self);
2068 >    BeforeTransactionEnd(Self,Action);
2069   end;
2070  
2071   procedure TIBBase.DoAfterTransactionEnd;
# Line 1853 | Line 2081 | begin
2081    FTransaction := nil;
2082   end;
2083  
2084 + procedure TIBBase.DoAfterExecQuery(Sender: TObject);
2085 + begin
2086 +  if FTransaction <> nil then
2087 +    FTransaction.DoAfterExecQuery(Sender);
2088 + end;
2089 +
2090 + procedure TIBBase.DoAfterEdit(Sender: TObject);
2091 + begin
2092 +  if FTransaction <> nil then
2093 +    FTransaction.DoAfterEdit(Sender);
2094 + end;
2095 +
2096 + procedure TIBBase.DoAfterDelete(Sender: TObject);
2097 + begin
2098 +  if FTransaction <> nil then
2099 +    FTransaction.DoAfterDelete(Sender);
2100 + end;
2101 +
2102 + procedure TIBBase.DoAfterInsert(Sender: TObject);
2103 + begin
2104 +  if FTransaction <> nil then
2105 +    FTransaction.DoAfterInsert(Sender);
2106 + end;
2107 +
2108 + procedure TIBBase.DoAfterPost(Sender: TObject);
2109 + begin
2110 +  if FTransaction <> nil then
2111 +    FTransaction.DoAfterPost(Sender);
2112 + end;
2113 +
2114   procedure TIBBase.SetDatabase(Value: TIBDatabase);
2115   begin
2116    if (FDatabase <> nil) then
# Line 1885 | Line 2143 | end;
2143    parameter buffer, and return it and its length
2144    in DPB and DPBLength, respectively. }
2145  
2146 < procedure GenerateDPB(sl: TStrings; var DPB: string; var DPBLength: Short);
2146 > function GenerateDPB(sl: TStrings): IDPB;
2147   var
2148 <  i, j, pval: Integer;
2148 >  i, j: Integer;
2149    DPBVal: UShort;
2150    ParamName, ParamValue: string;
2151   begin
2152 <  { The DPB is initially empty, with the exception that
1895 <    the DPB version must be the first byte of the string. }
1896 <  DPBLength := 1;
1897 <  DPB := Char(isc_dpb_version1);
2152 >  Result := FirebirdAPI.AllocateDPB;
2153  
2154    {Iterate through the textual database parameters, constructing
2155     a DPB on-the-fly }
# Line 1933 | Line 2188 | begin
2188        begin
2189          if DPBVal = isc_dpb_sql_dialect then
2190            ParamValue[1] := Char(Ord(ParamValue[1]) - 48);
2191 <        DPB := DPB +
1937 <               Char(DPBVal) +
1938 <               Char(Length(ParamValue)) +
1939 <               ParamValue;
1940 <        Inc(DPBLength, 2 + Length(ParamValue));
2191 >        Result.Add(DPBVal).SetAsString(ParamValue);
2192        end;
2193 +
2194        isc_dpb_num_buffers, isc_dpb_dbkey_scope, isc_dpb_force_write,
2195        isc_dpb_no_reserve, isc_dpb_damaged, isc_dpb_verify:
2196 <      begin
2197 <        DPB := DPB +
1946 <               Char(DPBVal) +
1947 <               #1 +
1948 <               Char(StrToInt(ParamValue));
1949 <        Inc(DPBLength, 3);
1950 <      end;
2196 >        Result.Add(DPBVal).SetAsByte(byte(ParamValue[1]));
2197 >
2198        isc_dpb_sweep:
2199 <      begin
2200 <        DPB := DPB +
1954 <               Char(DPBVal) +
1955 <               #1 +
1956 <               Char(isc_dpb_records);
1957 <        Inc(DPBLength, 3);
1958 <      end;
2199 >        Result.Add(DPBVal).SetAsByte(isc_dpb_records);
2200 >
2201        isc_dpb_sweep_interval:
2202 <      begin
2203 <        pval := StrToInt(ParamValue);
1962 <        DPB := DPB +
1963 <               Char(DPBVal) +
1964 <               #4 +
1965 <               PChar(@pval)[0] +
1966 <               PChar(@pval)[1] +
1967 <               PChar(@pval)[2] +
1968 <               PChar(@pval)[3];
1969 <        Inc(DPBLength, 6);
1970 <      end;
2202 >        Result.Add(DPBVal).SetAsInteger(StrToInt(ParamValue));
2203 >
2204        isc_dpb_activate_shadow, isc_dpb_delete_shadow, isc_dpb_begin_log,
2205        isc_dpb_quit_log:
2206 <      begin
1974 <        DPB := DPB +
1975 <               Char(DPBVal) +
1976 <               #1 + #0;
1977 <        Inc(DPBLength, 3);
1978 <      end;
2206 >        Result.Add(DPBVal).SetAsByte(0);
2207        else
2208        begin
2209          if (DPBVal > 0) and
# Line 1993 | Line 2221 | end;
2221    of the transaction parameters, generate a transaction
2222    parameter buffer, and return it and its length in
2223    TPB and TPBLength, respectively. }
2224 < procedure GenerateTPB(sl: TStrings; var TPB: string; var TPBLength: Short);
2224 > function GenerateTPB(sl: TStrings): ITPB;
2225   var
2226 <  i, j, TPBVal, ParamLength: Integer;
2226 >  i, j, TPBVal: Integer;
2227    ParamName, ParamValue: string;
2228   begin
2229 <  TPB := '';
2002 <  if (sl.Count = 0) then
2003 <    TPBLength := 0
2004 <  else
2005 <  begin
2006 <    TPBLength := sl.Count + 1;
2007 <    TPB := TPB + Char(isc_tpb_version3);
2008 <  end;
2229 >  Result := FirebirdAPI.AllocateTPB;
2230    for i := 0 to sl.Count - 1 do
2231    begin
2232      if (Trim(sl[i]) =  '') then
2012    begin
2013      Dec(TPBLength);
2233        Continue;
2234 <    end;
2234 >
2235      if (Pos('=', sl[i]) = 0) then {mbcs ok}
2236        ParamName := LowerCase(sl[i]) {mbcs ok}
2237      else
# Line 2036 | Line 2255 | begin
2255        isc_tpb_concurrency, isc_tpb_shared, isc_tpb_wait, isc_tpb_nowait,
2256        isc_tpb_read, isc_tpb_write, isc_tpb_ignore_limbo,
2257        isc_tpb_read_committed, isc_tpb_rec_version, isc_tpb_no_rec_version:
2258 <        TPB := TPB + Char(TPBVal);
2258 >        Result.Add(TPBVal);
2259 >
2260        isc_tpb_lock_read, isc_tpb_lock_write:
2261 <      begin
2262 <        TPB := TPB + Char(TPBVal);
2043 <        { Now set the string parameter }
2044 <        ParamLength := Length(ParamValue);
2045 <        Inc(TPBLength, ParamLength + 1);
2046 <        TPB := TPB + Char(ParamLength) + ParamValue;
2047 <      end;
2261 >        Result.Add(TPBVal).SetAsString(ParamValue);
2262 >
2263        else
2264        begin
2265          if (TPBVal > 0) and

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