client/2.5/FB25Attachment.pas

(*
 *  Firebird Interface (fbintf). The fbintf components provide a set of
 *  Pascal language bindings for the Firebird API.
 *
 *  The contents of this file are subject to the Initial Developer's
 *  Public License Version 1.0 (the "License"); you may not use this
 *  file except in compliance with the License. You may obtain a copy
 *  of the License here:
 *
 *    http://www.firebirdsql.org/index.php?op=doc&id=idpl
 *
 *  Software distributed under the License is distributed on an "AS
 *  IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 *  implied. See the License for the specific language governing rights
 *  and limitations under the License.
 *
 *  The Initial Developer of the Original Code is Tony Whyman.
 *
 *  The Original Code is (C) 2016 Tony Whyman, MWA Software
 *  (http://www.mwasoftware.co.uk).
 *
 *  All Rights Reserved.
 *
 *  Contributor(s): ______________________________________.
 *
*)
unit FB25Attachment;
{$IFDEF MSWINDOWS} 
{$DEFINE WINDOWS} 
{$ENDIF}

{$IFDEF FPC}
{$mode delphi}
{$interfaces COM}
{$ENDIF}

interface

uses
  Classes, SysUtils, IB,  FBAttachment, FB25ClientAPI, IBHeader,
  FBParamBlock, FBOutputBlock, FBActivityMonitor;

type
  { TFB25Attachment }

  TFB25Attachment = class(TFBAttachment, IAttachment, IActivityMonitor)
  private
    FHandle: TISC_DB_HANDLE;
    FFirebird25ClientAPI: TFB25ClientAPI;
  protected
    procedure CheckHandle; override;
  public
    constructor Create(api: TFB25ClientAPI; DatabaseName: AnsiString; aDPB: IDPB;
      RaiseExceptionOnConnectError: boolean);
    constructor CreateDatabase(api: TFB25ClientAPI; DatabaseName: AnsiString; aDPB: IDPB; RaiseExceptionOnError: boolean); overload;
    constructor CreateDatabase(api: TFB25ClientAPI; sql: AnsiString; aSQLDialect: integer;
      RaiseExceptionOnError: boolean); overload;
    function GetDBInfo(ReqBuffer: PByte; ReqBufLen: integer): IDBInformation; override;
    property Handle: TISC_DB_HANDLE read FHandle;
    property Firebird25ClientAPI: TFB25ClientAPI read FFirebird25ClientAPI;

  public
    {IAttachment}
    procedure Connect;
    procedure Disconnect(Force: boolean=false); override;
    function IsConnected: boolean; override;
    procedure DropDatabase;
    function StartTransaction(TPB: array of byte; DefaultCompletion: TTransactionCompletion): ITransaction; override;
    function StartTransaction(TPB: ITPB; DefaultCompletion: TTransactionCompletion): ITransaction; override;
    procedure ExecImmediate(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer); override;
    function Prepare(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer): IStatement; override;
    function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
                       aSQLDialect: integer; GenerateParamNames: boolean=false;
                       CaseSensitiveParams: boolean=false): IStatement; override;
    function GetEventHandler(Events: TStrings): IEvents; override;
    function CreateBlob(transaction: ITransaction; BlobMetaData: IBlobMetaData; BPB: IBPB=nil): IBlob; overload; override;
    function CreateBlob(transaction: ITransaction; SubType: integer; aCharSetID: cardinal=0; BPB: IBPB=nil): IBlob; overload;
    function OpenBlob(transaction: ITransaction; BlobMetaData: IBlobMetaData; BlobID: TISC_QUAD; BPB: IBPB=nil): IBlob; overload; override;

    function OpenArray(transaction: ITransaction; ArrayMetaData: IArrayMetaData; ArrayID: TISC_QUAD): IArray; overload; override;
    function CreateArray(transaction: ITransaction; ArrayMetaData: IArrayMetaData): IArray; overload; override;
    function CreateArrayMetaData(SQLType: cardinal; tableName: AnsiString; columnName: AnsiString;
      Scale: integer; size: cardinal;
      acharSetID: cardinal; dimensions: cardinal; bounds: TArrayBounds
  ): IArrayMetaData;

    {Database Information}

    function GetBlobMetaData(Transaction: ITransaction; tableName, columnName: AnsiString): IBlobMetaData; override;
    function GetArrayMetaData(Transaction: ITransaction; tableName, columnName: AnsiString): IArrayMetaData; override;
    procedure getFBVersion(version: TStrings);
  end;

implementation

uses FB25Events,FB25Transaction, FBMessages, FB25Blob,
  FB25Statement, FB25Array, IBUtils, IBExternals;

  { TFB25Attachment }

procedure TFB25Attachment.CheckHandle;
begin
  if FHandle = nil then
    IBError(ibxeDatabaseClosed,[nil]);
end;

constructor TFB25Attachment.Create(api: TFB25ClientAPI; DatabaseName: AnsiString; aDPB: IDPB;
  RaiseExceptionOnConnectError: boolean);
begin
  FFirebird25ClientAPI := api;
  if aDPB = nil then
  begin
    if RaiseExceptionOnConnectError then
       IBError(ibxeNoDPB,[nil]);
    Exit;
  end;
  inherited Create(api,DatabaseName,aDPB,RaiseExceptionOnConnectError);
  Connect;
end;

constructor TFB25Attachment.CreateDatabase(api: TFB25ClientAPI; DatabaseName: AnsiString; aDPB: IDPB;
  RaiseExceptionOnError: boolean);
var sql: AnsiString;
    tr_handle: TISC_TR_HANDLE;
begin
  inherited Create(api,DatabaseName,aDPB,RaiseExceptionOnError);
  FFirebird25ClientAPI := api;
  sql := GenerateCreateDatabaseSQL(DatabaseName,aDPB);
  tr_handle := nil;
  with FFirebird25ClientAPI do
  if (isc_dsql_execute_immediate(StatusVector, @FHandle, @tr_handle, 0, PAnsiChar(sql),
                                  SQLDialect, nil) > 0) and RaiseExceptionOnError then
    IBDataBaseError;
  if DPB <> nil then
  {Connect using known parameters}
  begin
    Disconnect;
    Connect;
  end
  else
    GetODSAndConnectionInfo;
end;

constructor TFB25Attachment.CreateDatabase(api: TFB25ClientAPI; sql: AnsiString; aSQLDialect: integer;
    RaiseExceptionOnError: boolean);
var tr_handle: TISC_TR_HANDLE;
begin
  inherited Create(api,'',nil,RaiseExceptionOnError);
  FFirebird25ClientAPI := api;
  FSQLDialect := aSQLDialect;
  tr_handle := nil;
  with FFirebird25ClientAPI do
  begin
    if (isc_dsql_execute_immediate(StatusVector, @FHandle, @tr_handle, 0, PAnsiChar(sql),
                                  aSQLDialect, nil) > 0) and RaiseExceptionOnError then
      IBDataBaseError;

  end;
  GetODSAndConnectionInfo;
  ExtractConnectString(sql,FDatabaseName);
  DPBFromCreateSQL(sql);
end;

function TFB25Attachment.GetDBInfo(ReqBuffer: PByte; ReqBufLen: integer
  ): IDBInformation;
begin
  Result := TDBInformation.Create(FFirebird25ClientAPI);
  with FFirebird25ClientAPI, Result as TDBInformation do
     if isc_database_info(StatusVector, @(FHandle), ReqBufLen, ReqBuffer,
                               getBufSize, Buffer) > 0 then
          IBDataBaseError;
end;

procedure TFB25Attachment.Connect;
begin
  FSQLDialect := 3;

  with FFirebird25ClientAPI do
  if DPB = nil then
  begin
    if (isc_attach_database(StatusVector, Length(FDatabaseName),
                        PAnsiChar(FDatabaseName), @FHandle, 0, nil) > 0) and FRaiseExceptionOnConnectError then
      IBDatabaseError;
  end
  else
  begin
    if (isc_attach_database(StatusVector, Length(FDatabaseName),
                         PAnsiChar(FDatabaseName), @FHandle,
                         (DPB as TDPB).getDataLength,
                         (DPB as TDPB).getBuffer) > 0 ) and FRaiseExceptionOnConnectError then
      IBDatabaseError;

  end;
  GetODSAndConnectionInfo;
end;

procedure TFB25Attachment.Disconnect(Force: boolean);
begin
  if FHandle = nil then
    Exit;

  EndAllTransactions;
  {Disconnect}
  with FFirebird25ClientAPI do
    if (isc_detach_database(StatusVector, @FHandle) > 0) and not Force then
      IBDatabaseError;
  FHandle := nil;
  FHasDefaultCharSet := false;
  FCodePage := CP_NONE;
  FCharSetID := 0;
end;

function TFB25Attachment.IsConnected: boolean;
begin
  Result := FHandle <> nil;
end;

procedure TFB25Attachment.DropDatabase;
begin
  CheckHandle;
  EndAllTransactions;
  with FFirebird25ClientAPI do
    if isc_drop_database(StatusVector, @FHandle) > 0 then
      IBDatabaseError;
  FHandle := nil;
end;

function TFB25Attachment.StartTransaction(TPB: array of byte;
  DefaultCompletion: TTransactionCompletion): ITransaction;
begin
  CheckHandle;
  Result := TFB25Transaction.Create(FFirebird25ClientAPI,self,TPB,DefaultCompletion);
end;

function TFB25Attachment.StartTransaction(TPB: ITPB;
  DefaultCompletion: TTransactionCompletion): ITransaction;
begin
  CheckHandle;
  Result := TFB25Transaction.Create(FFirebird25ClientAPI,self,TPB,DefaultCompletion);
end;

function TFB25Attachment.CreateBlob(transaction: ITransaction;
  BlobMetaData: IBlobMetaData; BPB: IBPB): IBlob;
begin
  CheckHandle;
  Result := TFB25Blob.Create(self,transaction as TFB25transaction,BlobMetaData,BPB);
end;

function TFB25Attachment.CreateBlob(transaction: ITransaction;
  SubType: integer; aCharSetID: cardinal; BPB: IBPB): IBlob;
begin
  CheckHandle;
  Result := TFB25Blob.Create(self,transaction as TFB25transaction,SubType,aCharSetID,BPB);
end;

function TFB25Attachment.OpenBlob(transaction: ITransaction;
  BlobMetaData: IBlobMetaData; BlobID: TISC_QUAD; BPB: IBPB=nil): IBlob;
begin
  CheckHandle;
  Result :=  TFB25Blob.Create(self,transaction as TFB25transaction,BlobMetaData,BlobID,BPB);
end;

procedure TFB25Attachment.ExecImmediate(transaction: ITransaction; sql: AnsiString;
  aSQLDialect: integer);
var TRHandle: TISC_TR_HANDLE;
begin
  CheckHandle;
  TRHandle := (Transaction as TFB25Transaction).Handle;
  with FFirebird25ClientAPI do
    if isc_dsql_execute_immediate(StatusVector, @fHandle, @TRHandle, 0,PAnsiChar(sql), aSQLDialect, nil) > 0 then
      IBDatabaseError;
  SignalActivity;
end;

function TFB25Attachment.Prepare(transaction: ITransaction; sql: AnsiString;
  aSQLDialect: integer): IStatement;
begin
  CheckHandle;
  Result := TFB25Statement.Create(self,transaction,sql,aSQLDialect);
end;

function TFB25Attachment.PrepareWithNamedParameters(transaction: ITransaction;
  sql: AnsiString; aSQLDialect: integer; GenerateParamNames: boolean;
  CaseSensitiveParams: boolean): IStatement;
begin
  CheckHandle;
  Result := TFB25Statement.CreateWithParameterNames(self,transaction,sql,aSQLDialect,
         GenerateParamNames,CaseSensitiveParams);
end;

function TFB25Attachment.GetEventHandler(Events: TStrings): IEvents;
begin
  CheckHandle;
  Result := TFB25Events.Create(self,Events);
end;

function TFB25Attachment.OpenArray(transaction: ITransaction; ArrayMetaData: IArrayMetaData;
  ArrayID: TISC_QUAD): IArray;
begin
  CheckHandle;
  Result := TFB25Array.Create(self,transaction as TFB25Transaction,
                    ArrayMetaData,ArrayID);
end;

function TFB25Attachment.CreateArray(transaction: ITransaction;
  ArrayMetaData: IArrayMetaData): IArray;
begin
  CheckHandle;
  Result := TFB25Array.Create(self,transaction as TFB25Transaction,ArrayMetaData);
end;

function TFB25Attachment.CreateArrayMetaData(SQLType: cardinal;
  tableName: AnsiString; columnName: AnsiString; Scale: integer; size: cardinal;
  acharSetID: cardinal; dimensions: cardinal; bounds: TArrayBounds
  ): IArrayMetaData;
begin
  Result := TFB25ArrayMetaData.Create(self,SQLType,tableName,ColumnName,Scale,size,acharSetID,dimensions,bounds);
end;

function TFB25Attachment.GetBlobMetaData(Transaction: ITransaction; tableName,
  columnName: AnsiString): IBlobMetaData;
begin
  CheckHandle;
  Result := TFB25BlobMetaData.Create(self,Transaction as TFB25Transaction,tableName,columnName);
end;

function TFB25Attachment.GetArrayMetaData(Transaction: ITransaction; tableName,
  columnName: AnsiString): IArrayMetaData;
begin
  CheckHandle;
  Result := TFB25ArrayMetaData.Create(self,Transaction as TFB25Transaction,tableName,columnName);
end;

procedure ISCVersionCallback(userArg: pointer; text: PAnsiChar); cdecl;
begin
  TStrings(userArg).Add(text);
end;

procedure TFB25Attachment.getFBVersion(version: TStrings);
var callback: pointer;
begin
  callback := @ISCVersionCallback;
  version.Clear;
  with FFirebird25ClientAPI do
    if isc_version(@FHandle,TISC_CALLBACK(callback),PVoid(version)) > 0 then
       IBDataBaseError;
end;

end.

Revision:	291
Committed:	Fri Apr 17 10:26:08 2020 UTC (4 years, 7 months ago) by tony
Content type:	text/x-pascal
File size:	11951 byte(s)
Log Message:	Changed for 2.3.4 merged into public release
#	Content
1	(*
2	* Firebird Interface (fbintf). The fbintf components provide a set of
3	* Pascal language bindings for the Firebird API.
4	*
5	* The contents of this file are subject to the Initial Developer's
6	* Public License Version 1.0 (the "License"); you may not use this
7	* file except in compliance with the License. You may obtain a copy
8	* of the License here:
9	*
10	* http://www.firebirdsql.org/index.php?op=doc&id=idpl
11	*
12	* Software distributed under the License is distributed on an "AS
13	* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
14	* implied. See the License for the specific language governing rights
15	* and limitations under the License.
16	*
17	* The Initial Developer of the Original Code is Tony Whyman.
18	*
19	* The Original Code is (C) 2016 Tony Whyman, MWA Software
20	* (http://www.mwasoftware.co.uk).
21	*
22	* All Rights Reserved.
23	*
24	* Contributor(s): ______________________________________.
25	*
26	*)
27	unit FB25Attachment;
28	{$IFDEF MSWINDOWS}
29	{$DEFINE WINDOWS}
30	{$ENDIF}
31
32	{$IFDEF FPC}
33	{$mode delphi}
34	{$interfaces COM}
35	{$ENDIF}
36
37	interface
38
39	uses
40	Classes, SysUtils, IB, FBAttachment, FB25ClientAPI, IBHeader,
41	FBParamBlock, FBOutputBlock, FBActivityMonitor;
42
43	type
44	{ TFB25Attachment }
45
46	TFB25Attachment = class(TFBAttachment, IAttachment, IActivityMonitor)
47	private
48	FHandle: TISC_DB_HANDLE;
49	FFirebird25ClientAPI: TFB25ClientAPI;
50	protected
51	procedure CheckHandle; override;
52	public
53	constructor Create(api: TFB25ClientAPI; DatabaseName: AnsiString; aDPB: IDPB;
54	RaiseExceptionOnConnectError: boolean);
55	constructor CreateDatabase(api: TFB25ClientAPI; DatabaseName: AnsiString; aDPB: IDPB; RaiseExceptionOnError: boolean); overload;
56	constructor CreateDatabase(api: TFB25ClientAPI; sql: AnsiString; aSQLDialect: integer;
57	RaiseExceptionOnError: boolean); overload;
58	function GetDBInfo(ReqBuffer: PByte; ReqBufLen: integer): IDBInformation; override;
59	property Handle: TISC_DB_HANDLE read FHandle;
60	property Firebird25ClientAPI: TFB25ClientAPI read FFirebird25ClientAPI;
61
62	public
63	{IAttachment}
64	procedure Connect;
65	procedure Disconnect(Force: boolean=false); override;
66	function IsConnected: boolean; override;
67	procedure DropDatabase;
68	function StartTransaction(TPB: array of byte; DefaultCompletion: TTransactionCompletion): ITransaction; override;
69	function StartTransaction(TPB: ITPB; DefaultCompletion: TTransactionCompletion): ITransaction; override;
70	procedure ExecImmediate(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer); override;
71	function Prepare(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer): IStatement; override;
72	function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
73	aSQLDialect: integer; GenerateParamNames: boolean=false;
74	CaseSensitiveParams: boolean=false): IStatement; override;
75	function GetEventHandler(Events: TStrings): IEvents; override;
76	function CreateBlob(transaction: ITransaction; BlobMetaData: IBlobMetaData; BPB: IBPB=nil): IBlob; overload; override;
77	function CreateBlob(transaction: ITransaction; SubType: integer; aCharSetID: cardinal=0; BPB: IBPB=nil): IBlob; overload;
78	function OpenBlob(transaction: ITransaction; BlobMetaData: IBlobMetaData; BlobID: TISC_QUAD; BPB: IBPB=nil): IBlob; overload; override;
79
80	function OpenArray(transaction: ITransaction; ArrayMetaData: IArrayMetaData; ArrayID: TISC_QUAD): IArray; overload; override;
81	function CreateArray(transaction: ITransaction; ArrayMetaData: IArrayMetaData): IArray; overload; override;
82	function CreateArrayMetaData(SQLType: cardinal; tableName: AnsiString; columnName: AnsiString;
83	Scale: integer; size: cardinal;
84	acharSetID: cardinal; dimensions: cardinal; bounds: TArrayBounds
85	): IArrayMetaData;
86
87	{Database Information}
88
89	function GetBlobMetaData(Transaction: ITransaction; tableName, columnName: AnsiString): IBlobMetaData; override;
90	function GetArrayMetaData(Transaction: ITransaction; tableName, columnName: AnsiString): IArrayMetaData; override;
91	procedure getFBVersion(version: TStrings);
92	end;
93
94	implementation
95
96	uses FB25Events,FB25Transaction, FBMessages, FB25Blob,
97	FB25Statement, FB25Array, IBUtils, IBExternals;
98
99	{ TFB25Attachment }
100
101	procedure TFB25Attachment.CheckHandle;
102	begin
103	if FHandle = nil then
104	IBError(ibxeDatabaseClosed,[nil]);
105	end;
106
107	constructor TFB25Attachment.Create(api: TFB25ClientAPI; DatabaseName: AnsiString; aDPB: IDPB;
108	RaiseExceptionOnConnectError: boolean);
109	begin
110	FFirebird25ClientAPI := api;
111	if aDPB = nil then
112	begin
113	if RaiseExceptionOnConnectError then
114	IBError(ibxeNoDPB,[nil]);
115	Exit;
116	end;
117	inherited Create(api,DatabaseName,aDPB,RaiseExceptionOnConnectError);
118	Connect;
119	end;
120
121	constructor TFB25Attachment.CreateDatabase(api: TFB25ClientAPI; DatabaseName: AnsiString; aDPB: IDPB;
122	RaiseExceptionOnError: boolean);
123	var sql: AnsiString;
124	tr_handle: TISC_TR_HANDLE;
125	begin
126	inherited Create(api,DatabaseName,aDPB,RaiseExceptionOnError);
127	FFirebird25ClientAPI := api;
128	sql := GenerateCreateDatabaseSQL(DatabaseName,aDPB);
129	tr_handle := nil;
130	with FFirebird25ClientAPI do
131	if (isc_dsql_execute_immediate(StatusVector, @FHandle, @tr_handle, 0, PAnsiChar(sql),
132	SQLDialect, nil) > 0) and RaiseExceptionOnError then
133	IBDataBaseError;
134	if DPB <> nil then
135	{Connect using known parameters}
136	begin
137	Disconnect;
138	Connect;
139	end
140	else
141	GetODSAndConnectionInfo;
142	end;
143
144	constructor TFB25Attachment.CreateDatabase(api: TFB25ClientAPI; sql: AnsiString; aSQLDialect: integer;
145	RaiseExceptionOnError: boolean);
146	var tr_handle: TISC_TR_HANDLE;
147	begin
148	inherited Create(api,'',nil,RaiseExceptionOnError);
149	FFirebird25ClientAPI := api;
150	FSQLDialect := aSQLDialect;
151	tr_handle := nil;
152	with FFirebird25ClientAPI do
153	begin
154	if (isc_dsql_execute_immediate(StatusVector, @FHandle, @tr_handle, 0, PAnsiChar(sql),
155	aSQLDialect, nil) > 0) and RaiseExceptionOnError then
156	IBDataBaseError;
157
158	end;
159	GetODSAndConnectionInfo;
160	ExtractConnectString(sql,FDatabaseName);
161	DPBFromCreateSQL(sql);
162	end;
163
164	function TFB25Attachment.GetDBInfo(ReqBuffer: PByte; ReqBufLen: integer
165	): IDBInformation;
166	begin
167	Result := TDBInformation.Create(FFirebird25ClientAPI);
168	with FFirebird25ClientAPI, Result as TDBInformation do
169	if isc_database_info(StatusVector, @(FHandle), ReqBufLen, ReqBuffer,
170	getBufSize, Buffer) > 0 then
171	IBDataBaseError;
172	end;
173
174	procedure TFB25Attachment.Connect;
175	begin
176	FSQLDialect := 3;
177
178	with FFirebird25ClientAPI do
179	if DPB = nil then
180	begin
181	if (isc_attach_database(StatusVector, Length(FDatabaseName),
182	PAnsiChar(FDatabaseName), @FHandle, 0, nil) > 0) and FRaiseExceptionOnConnectError then
183	IBDatabaseError;
184	end
185	else
186	begin
187	if (isc_attach_database(StatusVector, Length(FDatabaseName),
188	PAnsiChar(FDatabaseName), @FHandle,
189	(DPB as TDPB).getDataLength,
190	(DPB as TDPB).getBuffer) > 0 ) and FRaiseExceptionOnConnectError then
191	IBDatabaseError;
192
193	end;
194	GetODSAndConnectionInfo;
195	end;
196
197	procedure TFB25Attachment.Disconnect(Force: boolean);
198	begin
199	if FHandle = nil then
200	Exit;
201
202	EndAllTransactions;
203	{Disconnect}
204	with FFirebird25ClientAPI do
205	if (isc_detach_database(StatusVector, @FHandle) > 0) and not Force then
206	IBDatabaseError;
207	FHandle := nil;
208	FHasDefaultCharSet := false;
209	FCodePage := CP_NONE;
210	FCharSetID := 0;
211	end;
212
213	function TFB25Attachment.IsConnected: boolean;
214	begin
215	Result := FHandle <> nil;
216	end;
217
218	procedure TFB25Attachment.DropDatabase;
219	begin
220	CheckHandle;
221	EndAllTransactions;
222	with FFirebird25ClientAPI do
223	if isc_drop_database(StatusVector, @FHandle) > 0 then
224	IBDatabaseError;
225	FHandle := nil;
226	end;
227
228	function TFB25Attachment.StartTransaction(TPB: array of byte;
229	DefaultCompletion: TTransactionCompletion): ITransaction;
230	begin
231	CheckHandle;
232	Result := TFB25Transaction.Create(FFirebird25ClientAPI,self,TPB,DefaultCompletion);
233	end;
234
235	function TFB25Attachment.StartTransaction(TPB: ITPB;
236	DefaultCompletion: TTransactionCompletion): ITransaction;
237	begin
238	CheckHandle;
239	Result := TFB25Transaction.Create(FFirebird25ClientAPI,self,TPB,DefaultCompletion);
240	end;
241
242	function TFB25Attachment.CreateBlob(transaction: ITransaction;
243	BlobMetaData: IBlobMetaData; BPB: IBPB): IBlob;
244	begin
245	CheckHandle;
246	Result := TFB25Blob.Create(self,transaction as TFB25transaction,BlobMetaData,BPB);
247	end;
248
249	function TFB25Attachment.CreateBlob(transaction: ITransaction;
250	SubType: integer; aCharSetID: cardinal; BPB: IBPB): IBlob;
251	begin
252	CheckHandle;
253	Result := TFB25Blob.Create(self,transaction as TFB25transaction,SubType,aCharSetID,BPB);
254	end;
255
256	function TFB25Attachment.OpenBlob(transaction: ITransaction;
257	BlobMetaData: IBlobMetaData; BlobID: TISC_QUAD; BPB: IBPB=nil): IBlob;
258	begin
259	CheckHandle;
260	Result := TFB25Blob.Create(self,transaction as TFB25transaction,BlobMetaData,BlobID,BPB);
261	end;
262
263	procedure TFB25Attachment.ExecImmediate(transaction: ITransaction; sql: AnsiString;
264	aSQLDialect: integer);
265	var TRHandle: TISC_TR_HANDLE;
266	begin
267	CheckHandle;
268	TRHandle := (Transaction as TFB25Transaction).Handle;
269	with FFirebird25ClientAPI do
270	if isc_dsql_execute_immediate(StatusVector, @fHandle, @TRHandle, 0,PAnsiChar(sql), aSQLDialect, nil) > 0 then
271	IBDatabaseError;
272	SignalActivity;
273	end;
274
275	function TFB25Attachment.Prepare(transaction: ITransaction; sql: AnsiString;
276	aSQLDialect: integer): IStatement;
277	begin
278	CheckHandle;
279	Result := TFB25Statement.Create(self,transaction,sql,aSQLDialect);
280	end;
281
282	function TFB25Attachment.PrepareWithNamedParameters(transaction: ITransaction;
283	sql: AnsiString; aSQLDialect: integer; GenerateParamNames: boolean;
284	CaseSensitiveParams: boolean): IStatement;
285	begin
286	CheckHandle;
287	Result := TFB25Statement.CreateWithParameterNames(self,transaction,sql,aSQLDialect,
288	GenerateParamNames,CaseSensitiveParams);
289	end;
290
291	function TFB25Attachment.GetEventHandler(Events: TStrings): IEvents;
292	begin
293	CheckHandle;
294	Result := TFB25Events.Create(self,Events);
295	end;
296
297	function TFB25Attachment.OpenArray(transaction: ITransaction; ArrayMetaData: IArrayMetaData;
298	ArrayID: TISC_QUAD): IArray;
299	begin
300	CheckHandle;
301	Result := TFB25Array.Create(self,transaction as TFB25Transaction,
302	ArrayMetaData,ArrayID);
303	end;
304
305	function TFB25Attachment.CreateArray(transaction: ITransaction;
306	ArrayMetaData: IArrayMetaData): IArray;
307	begin
308	CheckHandle;
309	Result := TFB25Array.Create(self,transaction as TFB25Transaction,ArrayMetaData);
310	end;
311
312	function TFB25Attachment.CreateArrayMetaData(SQLType: cardinal;
313	tableName: AnsiString; columnName: AnsiString; Scale: integer; size: cardinal;
314	acharSetID: cardinal; dimensions: cardinal; bounds: TArrayBounds
315	): IArrayMetaData;
316	begin
317	Result := TFB25ArrayMetaData.Create(self,SQLType,tableName,ColumnName,Scale,size,acharSetID,dimensions,bounds);
318	end;
319
320	function TFB25Attachment.GetBlobMetaData(Transaction: ITransaction; tableName,
321	columnName: AnsiString): IBlobMetaData;
322	begin
323	CheckHandle;
324	Result := TFB25BlobMetaData.Create(self,Transaction as TFB25Transaction,tableName,columnName);
325	end;
326
327	function TFB25Attachment.GetArrayMetaData(Transaction: ITransaction; tableName,
328	columnName: AnsiString): IArrayMetaData;
329	begin
330	CheckHandle;
331	Result := TFB25ArrayMetaData.Create(self,Transaction as TFB25Transaction,tableName,columnName);
332	end;
333
334	procedure ISCVersionCallback(userArg: pointer; text: PAnsiChar); cdecl;
335	begin
336	TStrings(userArg).Add(text);
337	end;
338
339	procedure TFB25Attachment.getFBVersion(version: TStrings);
340	var callback: pointer;
341	begin
342	callback := @ISCVersionCallback;
343	version.Clear;
344	with FFirebird25ClientAPI do
345	if isc_version(@FHandle,TISC_CALLBACK(callback),PVoid(version)) > 0 then
346	IBDataBaseError;
347	end;
348
349	end.
350