client/3.0/FB30Attachment.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 FB30Attachment;
{$IFDEF MSWINDOWS} 
{$DEFINE WINDOWS} 
{$ENDIF}

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

interface

uses
  Classes, SysUtils, FBAttachment, FBClientAPI, FB30ClientAPI, Firebird, IB,
  FBActivityMonitor, FBParamBlock;

type

  { TFB30Attachment }

  TFB30Attachment = class(TFBAttachment,IAttachment, IActivityMonitor)
  private
    FAttachmentIntf: Firebird.IAttachment;
    FFirebird30ClientAPI: TFB30ClientAPI;
    FTimeZoneServices: ITimeZoneServices;
    FUsingRemoteICU: boolean;
    procedure SetUseRemoteICU(aValue: boolean);
  protected
    procedure CheckHandle; override;
  public
    constructor Create(api: TFB30ClientAPI; DatabaseName: AnsiString; aDPB: IDPB;
          RaiseExceptionOnConnectError: boolean);
    constructor CreateDatabase(api: TFB30ClientAPI; DatabaseName: AnsiString; aDPB: IDPB; RaiseExceptionOnError: boolean);  overload;
    constructor CreateDatabase(api: TFB30ClientAPI; sql: AnsiString; aSQLDialect: integer;
      RaiseExceptionOnError: boolean); overload;
    destructor Destroy; override;
    function GetDBInfo(ReqBuffer: PByte; ReqBufLen: integer): IDBInformation;
      override;
    property AttachmentIntf: Firebird.IAttachment read FAttachmentIntf;
    property Firebird30ClientAPI: TFB30ClientAPI read FFirebird30ClientAPI;

  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; CursorName: AnsiString=''): IStatement; override;
    function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
                       aSQLDialect: integer; GenerateParamNames: boolean=false;
                       CaseSensitiveParams: boolean=false; CursorName: AnsiString=''): IStatement; override;

    {Events}
    function GetEventHandler(Events: TStrings): IEvents; override;

    {Blob - may use to open existing Blobs. However, ISQLData.AsBlob is preferred}

    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;

    {Array}
    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);
    function HasDecFloatSupport: boolean; override;
    function HasBatchMode: boolean; override;
    function HasScollableCursors: boolean;

    {Time Zone Support}
    function GetTimeZoneServices: ITimeZoneServices; override;
    function HasTimeZoneSupport: boolean; override;
  end;

implementation

uses FB30Transaction, FB30Statement, FB30Array, FB30Blob, FBMessages,
  FBOutputBlock, FB30Events, IBUtils, FB30TimeZoneServices;

type
  { TVersionCallback }

  TVersionCallback = class(Firebird.IVersionCallbackImpl)
  private
    FOutput: TStrings;
    FFirebirdClientAPI: TFBClientAPI;
  public
    constructor Create(FirebirdClientAPI: TFBClientAPI; output: TStrings);
    procedure callback(status: Firebird.IStatus; text: PAnsiChar); override;
  end;

{ TVersionCallback }

constructor TVersionCallback.Create(FirebirdClientAPI: TFBClientAPI;
  output: TStrings);
begin
  inherited Create;
  FFirebirdClientAPI := FirebirdClientAPI;
  FOutput := output;
end;

procedure TVersionCallback.callback(status: Firebird.IStatus; text: PAnsiChar);
var StatusObj: TFB30StatusObject;
begin
  if ((status.getState and status.STATE_ERRORS) <> 0) then
  begin
    StatusObj := TFB30StatusObject.Create(FFirebirdClientAPI,status);
    try
      raise EIBInterBaseError.Create(StatusObj);
    finally
      StatusObj.Free;
    end;
  end;
  FOutput.Add(text);
end;


{ TFB30Attachment }

procedure TFB30Attachment.SetUseRemoteICU(aValue: boolean);
begin
  if (FUsingRemoteICU <> aValue) and (GetODSMajorVersion >= 13) then
  begin
    if aValue then
      ExecImmediate([isc_tpb_write,isc_tpb_wait,isc_tpb_concurrency],'SET BIND OF TIME ZONE TO EXTENDED')
    else
      ExecImmediate([isc_tpb_write,isc_tpb_wait,isc_tpb_concurrency],'SET BIND OF TIME ZONE TO NATIVE');
    FUsingRemoteICU := aValue;
  end;
end;

procedure TFB30Attachment.CheckHandle;
begin
  if FAttachmentIntf = nil then
    IBError(ibxeDatabaseClosed,[nil]);
end;

constructor TFB30Attachment.Create(api: TFB30ClientAPI; DatabaseName: AnsiString; aDPB: IDPB;
  RaiseExceptionOnConnectError: boolean);
begin
  FFirebird30ClientAPI := api;
  if aDPB = nil then
  begin
    if RaiseExceptionOnConnectError then
       IBError(ibxeNoDPB,[nil]);
    Exit;
  end;
  inherited Create(api,DatabaseName,aDPB,RaiseExceptionOnConnectError);
  Connect;
end;

constructor TFB30Attachment.CreateDatabase(api: TFB30ClientAPI; DatabaseName: AnsiString; aDPB: IDPB;
  RaiseExceptionOnError: boolean);
var Param: IDPBItem;
    sql: AnsiString;
    IsCreateDB: boolean;
begin
  inherited Create(api,DatabaseName,aDPB,RaiseExceptionOnError);
  FFirebird30ClientAPI := api;
  IsCreateDB := true;
  if aDPB <> nil then
  begin
    Param := aDPB.Find(isc_dpb_set_db_SQL_dialect);
    if Param <> nil then
      FSQLDialect := Param.AsByte;
  end;
  sql := GenerateCreateDatabaseSQL(DatabaseName,aDPB);
  with FFirebird30ClientAPI do
  begin
    FAttachmentIntf := UtilIntf.executeCreateDatabase(StatusIntf,Length(sql),
                                       PAnsiChar(sql),FSQLDialect,@IsCreateDB);
    if FRaiseExceptionOnConnectError then Check4DataBaseError;
    if InErrorState then
      FAttachmentIntf := nil
    else
    if aDPB <> nil then
    {Connect using known parameters}
    begin
      Disconnect;
      Connect;
    end
    else
      GetODSAndConnectionInfo;
  end;
end;

constructor TFB30Attachment.CreateDatabase(api: TFB30ClientAPI; sql: AnsiString; aSQLDialect: integer;
  RaiseExceptionOnError: boolean);
var IsCreateDB: boolean;
begin
  inherited Create(api,'',nil,RaiseExceptionOnError);
  FFirebird30ClientAPI := api;
  FSQLDialect := aSQLDialect;
  with FFirebird30ClientAPI do
  begin
    FAttachmentIntf := UtilIntf.executeCreateDatabase(StatusIntf,Length(sql),
                                       PAnsiChar(sql),aSQLDialect,@IsCreateDB);
    if FRaiseExceptionOnConnectError then Check4DataBaseError;
    if InErrorState then
      FAttachmentIntf := nil;
  end;
  GetODSAndConnectionInfo;
  ExtractConnectString(sql,FDatabaseName);
  DPBFromCreateSQL(sql);
end;

destructor TFB30Attachment.Destroy;
begin
  inherited Destroy;
  if assigned(FAttachmentIntf) then
    FAttachmentIntf.release;
end;

function TFB30Attachment.GetDBInfo(ReqBuffer: PByte; ReqBufLen: integer): IDBInformation;
begin
  Result := TDBInformation.Create(Firebird30ClientAPI);
  with FFirebird30ClientAPI, Result as TDBInformation do
  begin
    FAttachmentIntf.getInfo(StatusIntf, ReqBufLen, BytePtr(ReqBuffer),
                               getBufSize, BytePtr(Buffer));
      Check4DataBaseError;
  end
end;

procedure TFB30Attachment.Connect;
begin
  with FFirebird30ClientAPI do
  begin
    FAttachmentIntf := ProviderIntf.attachDatabase(StatusIntf,PAnsiChar(FDatabaseName),
                         (DPB as TDPB).getDataLength,
                         BytePtr((DPB as TDPB).getBuffer));
    if FRaiseExceptionOnConnectError then Check4DataBaseError;
    if InErrorState then
      FAttachmentIntf := nil
    else
      GetODSAndConnectionInfo;

  end;
end;

procedure TFB30Attachment.Disconnect(Force: boolean);
begin
  if IsConnected then
    with FFirebird30ClientAPI do
    begin
      EndAllTransactions;
      FAttachmentIntf.Detach(StatusIntf);
      if not Force and InErrorState then
        IBDataBaseError;
      FAttachmentIntf := nil;
      FHasDefaultCharSet := false;
      FCodePage := CP_NONE;
      FCharSetID := 0;
      FTimeZoneServices := nil;
    end;
end;

function TFB30Attachment.IsConnected: boolean;
begin
  Result := FAttachmentIntf <> nil;
end;

procedure TFB30Attachment.DropDatabase;
begin
  if IsConnected then
    with FFirebird30ClientAPI do
    begin
      EndAllTransactions;
      FAttachmentIntf.dropDatabase(StatusIntf);
      Check4DataBaseError;
      FAttachmentIntf := nil;
    end;
end;

function TFB30Attachment.StartTransaction(TPB: array of byte;
  DefaultCompletion: TTransactionCompletion): ITransaction;
begin
  CheckHandle;
  Result := TFB30Transaction.Create(FFirebird30ClientAPI,self,TPB,DefaultCompletion);
end;

function TFB30Attachment.StartTransaction(TPB: ITPB;
  DefaultCompletion: TTransactionCompletion): ITransaction;
begin
  CheckHandle;
  Result := TFB30Transaction.Create(FFirebird30ClientAPI,self,TPB,DefaultCompletion);
end;

procedure TFB30Attachment.ExecImmediate(transaction: ITransaction; sql: AnsiString;
  aSQLDialect: integer);
begin
  CheckHandle;
  with FFirebird30ClientAPI do
  begin
    FAttachmentIntf.execute(StatusIntf,(transaction as TFB30Transaction).TransactionIntf,
                    Length(sql),PAnsiChar(sql),aSQLDialect,nil,nil,nil,nil);
    Check4DataBaseError;
  end;
end;

function TFB30Attachment.Prepare(transaction: ITransaction; sql: AnsiString;
  aSQLDialect: integer; CursorName: AnsiString): IStatement;
begin
  CheckHandle;
  Result := TFB30Statement.Create(self,transaction,sql,aSQLDialect,CursorName);
end;

function TFB30Attachment.PrepareWithNamedParameters(transaction: ITransaction;
  sql: AnsiString; aSQLDialect: integer; GenerateParamNames: boolean;
  CaseSensitiveParams: boolean; CursorName: AnsiString): IStatement;
begin
  CheckHandle;
  Result := TFB30Statement.CreateWithParameterNames(self,transaction,sql,aSQLDialect,
         GenerateParamNames,CaseSensitiveParams,CursorName);
end;

function TFB30Attachment.GetEventHandler(Events: TStrings): IEvents;
begin
  CheckHandle;
  Result := TFB30Events.Create(self,Events);
end;

function TFB30Attachment.CreateBlob(transaction: ITransaction;
  BlobMetaData: IBlobMetaData; BPB: IBPB): IBlob;
begin
  CheckHandle;
  Result := TFB30Blob.Create(self,transaction as TFB30Transaction, BlobMetaData,BPB);
end;

function TFB30Attachment.CreateBlob(transaction: ITransaction;
  SubType: integer; aCharSetID: cardinal; BPB: IBPB): IBlob;
begin
  CheckHandle;
  Result := TFB30Blob.Create(self,transaction as TFB30Transaction, SubType,aCharSetID,BPB);
end;

function TFB30Attachment.OpenBlob(transaction: ITransaction;
  BlobMetaData: IBlobMetaData; BlobID: TISC_QUAD; BPB: IBPB): IBlob;
begin
  CheckHandle;
  Result :=  TFB30Blob.Create(self,transaction as TFB30transaction,BlobMetaData,BlobID,BPB);
end;

function TFB30Attachment.OpenArray(transaction: ITransaction;
  ArrayMetaData: IArrayMetaData; ArrayID: TISC_QUAD): IArray;
begin
  CheckHandle;
  Result := TFB30Array.Create(self,transaction as TFB30Transaction,
                    ArrayMetaData,ArrayID);
end;

function TFB30Attachment.CreateArray(transaction: ITransaction;
  ArrayMetaData: IArrayMetaData): IArray;
begin
  CheckHandle;
  Result := TFB30Array.Create(self,transaction as TFB30Transaction,ArrayMetaData);
end;

function TFB30Attachment.CreateArrayMetaData(SQLType: cardinal; tableName: AnsiString; columnName: AnsiString;
  Scale: integer; size: cardinal; aCharSetID: cardinal; dimensions: cardinal;
  bounds: TArrayBounds): IArrayMetaData;
begin
  Result := TFB30ArrayMetaData.Create(self,SQLType,tableName,ColumnName,Scale,size,aCharSetID, dimensions,bounds);
end;

function TFB30Attachment.GetBlobMetaData(Transaction: ITransaction; tableName,
  columnName: AnsiString): IBlobMetaData;
begin
  CheckHandle;
  Result := TFB30BlobMetaData.Create(self,Transaction as TFB30Transaction,tableName,columnName);
end;

function TFB30Attachment.GetArrayMetaData(Transaction: ITransaction; tableName,
  columnName: AnsiString): IArrayMetaData;
begin
  CheckHandle;
  Result := TFB30ArrayMetaData.Create(self,Transaction as TFB30Transaction,tableName,columnName);
end;

procedure TFB30Attachment.getFBVersion(version: TStrings);
var bufferObj: TVersionCallback;
begin
  version.Clear;
  bufferObj := TVersionCallback.Create(Firebird30ClientAPI,version);
  try
    with FFirebird30ClientAPI do
    begin
       UtilIntf.getFbVersion(StatusIntf,FAttachmentIntf,bufferObj);
       Check4DataBaseError;
    end;
  finally
    bufferObj.Free;
  end;
end;

function TFB30Attachment.HasDecFloatSupport: boolean;
begin
  Result := (FFirebird30ClientAPI.GetClientMajor >= 4) and
   (GetODSMajorVersion >= 13);
end;

function TFB30Attachment.HasBatchMode: boolean;
begin
  Result := FFirebird30ClientAPI.Firebird4orLater and
     (GetODSMajorVersion >= 13);
end;

function TFB30Attachment.HasScollableCursors: boolean;
begin
  Result := (GetODSMajorVersion >= 12);
end;

function TFB30Attachment.GetTimeZoneServices: ITimeZoneServices;
begin
  if not HasTimeZoneSupport then
    IBError(ibxeNotSupported,[]);

  if FTimeZoneServices = nil then
    FTimeZoneServices := TFB30TimeZoneServices.Create(self);
  Result := FTimeZoneServices;
end;

function TFB30Attachment.HasTimeZoneSupport: boolean;
begin
  Result := (FFirebird30ClientAPI.GetClientMajor >= 4) and
   (GetODSMajorVersion >= 13);
end;

end.

Revision:	362
Committed:	Tue Dec 7 13:27:39 2021 UTC (2 years, 4 months ago) by tony
Content type:	text/x-pascal
File size:	15188 byte(s)
Log Message:	initiate test release
#	User	Rev	Content
1	tony	45	(*
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 FB30Attachment;
28	tony	56	{$IFDEF MSWINDOWS}
29			{$DEFINE WINDOWS}
30			{$ENDIF}
31	tony	45
32			{$IFDEF FPC}
33	tony	56	{$mode delphi}
34	tony	45	{$interfaces COM}
35			{$ENDIF}
36
37			interface
38
39			uses
40	tony	315	Classes, SysUtils, FBAttachment, FBClientAPI, FB30ClientAPI, Firebird, IB,
41			FBActivityMonitor, FBParamBlock;
42	tony	45
43			type
44
45			{ TFB30Attachment }
46
47			TFB30Attachment = class(TFBAttachment,IAttachment, IActivityMonitor)
48			private
49			FAttachmentIntf: Firebird.IAttachment;
50	tony	263	FFirebird30ClientAPI: TFB30ClientAPI;
51	tony	315	FTimeZoneServices: ITimeZoneServices;
52			FUsingRemoteICU: boolean;
53			procedure SetUseRemoteICU(aValue: boolean);
54	tony	45	protected
55			procedure CheckHandle; override;
56			public
57	tony	263	constructor Create(api: TFB30ClientAPI; DatabaseName: AnsiString; aDPB: IDPB;
58	tony	45	RaiseExceptionOnConnectError: boolean);
59	tony	263	constructor CreateDatabase(api: TFB30ClientAPI; DatabaseName: AnsiString; aDPB: IDPB; RaiseExceptionOnError: boolean); overload;
60			constructor CreateDatabase(api: TFB30ClientAPI; sql: AnsiString; aSQLDialect: integer;
61	tony	47	RaiseExceptionOnError: boolean); overload;
62	tony	45	destructor Destroy; override;
63	tony	143	function GetDBInfo(ReqBuffer: PByte; ReqBufLen: integer): IDBInformation;
64			override;
65	tony	45	property AttachmentIntf: Firebird.IAttachment read FAttachmentIntf;
66	tony	263	property Firebird30ClientAPI: TFB30ClientAPI read FFirebird30ClientAPI;
67	tony	45
68			public
69			{IAttachment}
70			procedure Connect;
71			procedure Disconnect(Force: boolean=false); override;
72	tony	117	function IsConnected: boolean; override;
73	tony	45	procedure DropDatabase;
74			function StartTransaction(TPB: array of byte; DefaultCompletion: TTransactionCompletion): ITransaction; override;
75			function StartTransaction(TPB: ITPB; DefaultCompletion: TTransactionCompletion): ITransaction; override;
76	tony	56	procedure ExecImmediate(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer); override;
77	tony	350	function Prepare(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; CursorName: AnsiString=''): IStatement; override;
78	tony	56	function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
79	tony	270	aSQLDialect: integer; GenerateParamNames: boolean=false;
80	tony	350	CaseSensitiveParams: boolean=false; CursorName: AnsiString=''): IStatement; override;
81	tony	45
82			{Events}
83			function GetEventHandler(Events: TStrings): IEvents; override;
84
85			{Blob - may use to open existing Blobs. However, ISQLData.AsBlob is preferred}
86
87	tony	291	function CreateBlob(transaction: ITransaction; BlobMetaData: IBlobMetaData; BPB: IBPB=nil): IBlob; overload; override;
88	tony	45	function CreateBlob(transaction: ITransaction; SubType: integer; aCharSetID: cardinal=0; BPB: IBPB=nil): IBlob; overload;
89	tony	56	function OpenBlob(transaction: ITransaction; BlobMetaData: IBlobMetaData; BlobID: TISC_QUAD; BPB: IBPB=nil): IBlob; overload; override;
90	tony	45
91			{Array}
92	tony	291	function OpenArray(transaction: ITransaction; ArrayMetaData: IArrayMetaData; ArrayID: TISC_QUAD): IArray; overload; override;
93			function CreateArray(transaction: ITransaction; ArrayMetaData: IArrayMetaData): IArray; overload; override;
94	tony	56	function CreateArrayMetaData(SQLType: cardinal; tableName: AnsiString;
95			columnName: AnsiString; Scale: integer; size: cardinal; aCharSetID: cardinal;
96	tony	263	dimensions: cardinal; bounds: TArrayBounds): IArrayMetaData;
97	tony	45
98	tony	47
99	tony	45	{Database Information}
100	tony	291	function GetBlobMetaData(Transaction: ITransaction; tableName, columnName: AnsiString): IBlobMetaData; override;
101			function GetArrayMetaData(Transaction: ITransaction; tableName, columnName: AnsiString): IArrayMetaData; override;
102	tony	266	procedure getFBVersion(version: TStrings);
103	tony	315	function HasDecFloatSupport: boolean; override;
104	tony	345	function HasBatchMode: boolean; override;
105	tony	352	function HasScollableCursors: boolean;
106	tony	315
107			{Time Zone Support}
108			function GetTimeZoneServices: ITimeZoneServices; override;
109			function HasTimeZoneSupport: boolean; override;
110	tony	45	end;
111
112			implementation
113
114			uses FB30Transaction, FB30Statement, FB30Array, FB30Blob, FBMessages,
115	tony	315	FBOutputBlock, FB30Events, IBUtils, FB30TimeZoneServices;
116	tony	45
117	tony	266	type
118			{ TVersionCallback }
119
120			TVersionCallback = class(Firebird.IVersionCallbackImpl)
121			private
122			FOutput: TStrings;
123	tony	315	FFirebirdClientAPI: TFBClientAPI;
124	tony	266	public
125	tony	315	constructor Create(FirebirdClientAPI: TFBClientAPI; output: TStrings);
126	tony	266	procedure callback(status: Firebird.IStatus; text: PAnsiChar); override;
127			end;
128
129			{ TVersionCallback }
130
131	tony	315	constructor TVersionCallback.Create(FirebirdClientAPI: TFBClientAPI;
132			output: TStrings);
133	tony	266	begin
134			inherited Create;
135	tony	315	FFirebirdClientAPI := FirebirdClientAPI;
136	tony	266	FOutput := output;
137			end;
138
139			procedure TVersionCallback.callback(status: Firebird.IStatus; text: PAnsiChar);
140	tony	315	var StatusObj: TFB30StatusObject;
141	tony	266	begin
142	tony	315	if ((status.getState and status.STATE_ERRORS) <> 0) then
143			begin
144			StatusObj := TFB30StatusObject.Create(FFirebirdClientAPI,status);
145			try
146			raise EIBInterBaseError.Create(StatusObj);
147			finally
148			StatusObj.Free;
149			end;
150			end;
151	tony	266	FOutput.Add(text);
152			end;
153
154
155	tony	45	{ TFB30Attachment }
156
157	tony	315	procedure TFB30Attachment.SetUseRemoteICU(aValue: boolean);
158			begin
159			if (FUsingRemoteICU <> aValue) and (GetODSMajorVersion >= 13) then
160			begin
161			if aValue then
162			ExecImmediate([isc_tpb_write,isc_tpb_wait,isc_tpb_concurrency],'SET BIND OF TIME ZONE TO EXTENDED')
163			else
164			ExecImmediate([isc_tpb_write,isc_tpb_wait,isc_tpb_concurrency],'SET BIND OF TIME ZONE TO NATIVE');
165			FUsingRemoteICU := aValue;
166			end;
167			end;
168
169	tony	45	procedure TFB30Attachment.CheckHandle;
170			begin
171			if FAttachmentIntf = nil then
172			IBError(ibxeDatabaseClosed,[nil]);
173			end;
174
175	tony	263	constructor TFB30Attachment.Create(api: TFB30ClientAPI; DatabaseName: AnsiString; aDPB: IDPB;
176	tony	45	RaiseExceptionOnConnectError: boolean);
177			begin
178	tony	263	FFirebird30ClientAPI := api;
179	tony	45	if aDPB = nil then
180			begin
181			if RaiseExceptionOnConnectError then
182			IBError(ibxeNoDPB,[nil]);
183			Exit;
184			end;
185	tony	263	inherited Create(api,DatabaseName,aDPB,RaiseExceptionOnConnectError);
186	tony	45	Connect;
187			end;
188
189	tony	263	constructor TFB30Attachment.CreateDatabase(api: TFB30ClientAPI; DatabaseName: AnsiString; aDPB: IDPB;
190	tony	45	RaiseExceptionOnError: boolean);
191			var Param: IDPBItem;
192	tony	56	sql: AnsiString;
193	tony	45	IsCreateDB: boolean;
194			begin
195	tony	263	inherited Create(api,DatabaseName,aDPB,RaiseExceptionOnError);
196			FFirebird30ClientAPI := api;
197	tony	45	IsCreateDB := true;
198			if aDPB <> nil then
199			begin
200			Param := aDPB.Find(isc_dpb_set_db_SQL_dialect);
201			if Param <> nil then
202			FSQLDialect := Param.AsByte;
203			end;
204			sql := GenerateCreateDatabaseSQL(DatabaseName,aDPB);
205	tony	263	with FFirebird30ClientAPI do
206	tony	45	begin
207			FAttachmentIntf := UtilIntf.executeCreateDatabase(StatusIntf,Length(sql),
208			PAnsiChar(sql),FSQLDialect,@IsCreateDB);
209			if FRaiseExceptionOnConnectError then Check4DataBaseError;
210			if InErrorState then
211			FAttachmentIntf := nil
212			else
213			if aDPB <> nil then
214			{Connect using known parameters}
215			begin
216			Disconnect;
217			Connect;
218	tony	117	end
219			else
220			GetODSAndConnectionInfo;
221	tony	45	end;
222			end;
223
224	tony	263	constructor TFB30Attachment.CreateDatabase(api: TFB30ClientAPI; sql: AnsiString; aSQLDialect: integer;
225	tony	47	RaiseExceptionOnError: boolean);
226			var IsCreateDB: boolean;
227			begin
228	tony	263	inherited Create(api,'',nil,RaiseExceptionOnError);
229			FFirebird30ClientAPI := api;
230	tony	47	FSQLDialect := aSQLDialect;
231	tony	263	with FFirebird30ClientAPI do
232	tony	47	begin
233			FAttachmentIntf := UtilIntf.executeCreateDatabase(StatusIntf,Length(sql),
234			PAnsiChar(sql),aSQLDialect,@IsCreateDB);
235			if FRaiseExceptionOnConnectError then Check4DataBaseError;
236			if InErrorState then
237			FAttachmentIntf := nil;
238			end;
239	tony	117	GetODSAndConnectionInfo;
240			ExtractConnectString(sql,FDatabaseName);
241			DPBFromCreateSQL(sql);
242	tony	47	end;
243
244	tony	45	destructor TFB30Attachment.Destroy;
245			begin
246			inherited Destroy;
247			if assigned(FAttachmentIntf) then
248			FAttachmentIntf.release;
249			end;
250
251	tony	143	function TFB30Attachment.GetDBInfo(ReqBuffer: PByte; ReqBufLen: integer): IDBInformation;
252			begin
253	tony	263	Result := TDBInformation.Create(Firebird30ClientAPI);
254			with FFirebird30ClientAPI, Result as TDBInformation do
255	tony	143	begin
256			FAttachmentIntf.getInfo(StatusIntf, ReqBufLen, BytePtr(ReqBuffer),
257			getBufSize, BytePtr(Buffer));
258			Check4DataBaseError;
259			end
260			end;
261
262	tony	45	procedure TFB30Attachment.Connect;
263			begin
264	tony	263	with FFirebird30ClientAPI do
265	tony	45	begin
266			FAttachmentIntf := ProviderIntf.attachDatabase(StatusIntf,PAnsiChar(FDatabaseName),
267			(DPB as TDPB).getDataLength,
268			BytePtr((DPB as TDPB).getBuffer));
269			if FRaiseExceptionOnConnectError then Check4DataBaseError;
270			if InErrorState then
271			FAttachmentIntf := nil
272			else
273	tony	117	GetODSAndConnectionInfo;
274	tony	315
275	tony	45	end;
276			end;
277
278			procedure TFB30Attachment.Disconnect(Force: boolean);
279			begin
280			if IsConnected then
281	tony	263	with FFirebird30ClientAPI do
282	tony	45	begin
283			EndAllTransactions;
284			FAttachmentIntf.Detach(StatusIntf);
285			if not Force and InErrorState then
286			IBDataBaseError;
287			FAttachmentIntf := nil;
288			FHasDefaultCharSet := false;
289			FCodePage := CP_NONE;
290			FCharSetID := 0;
291	tony	315	FTimeZoneServices := nil;
292	tony	45	end;
293			end;
294
295			function TFB30Attachment.IsConnected: boolean;
296			begin
297			Result := FAttachmentIntf <> nil;
298			end;
299
300			procedure TFB30Attachment.DropDatabase;
301			begin
302			if IsConnected then
303	tony	263	with FFirebird30ClientAPI do
304	tony	45	begin
305			EndAllTransactions;
306			FAttachmentIntf.dropDatabase(StatusIntf);
307			Check4DataBaseError;
308			FAttachmentIntf := nil;
309			end;
310			end;
311
312			function TFB30Attachment.StartTransaction(TPB: array of byte;
313			DefaultCompletion: TTransactionCompletion): ITransaction;
314			begin
315			CheckHandle;
316	tony	263	Result := TFB30Transaction.Create(FFirebird30ClientAPI,self,TPB,DefaultCompletion);
317	tony	45	end;
318
319			function TFB30Attachment.StartTransaction(TPB: ITPB;
320			DefaultCompletion: TTransactionCompletion): ITransaction;
321			begin
322			CheckHandle;
323	tony	263	Result := TFB30Transaction.Create(FFirebird30ClientAPI,self,TPB,DefaultCompletion);
324	tony	45	end;
325
326	tony	56	procedure TFB30Attachment.ExecImmediate(transaction: ITransaction; sql: AnsiString;
327	tony	45	aSQLDialect: integer);
328			begin
329			CheckHandle;
330	tony	263	with FFirebird30ClientAPI do
331	tony	45	begin
332			FAttachmentIntf.execute(StatusIntf,(transaction as TFB30Transaction).TransactionIntf,
333	tony	56	Length(sql),PAnsiChar(sql),aSQLDialect,nil,nil,nil,nil);
334	tony	45	Check4DataBaseError;
335			end;
336			end;
337
338	tony	56	function TFB30Attachment.Prepare(transaction: ITransaction; sql: AnsiString;
339	tony	350	aSQLDialect: integer; CursorName: AnsiString): IStatement;
340	tony	45	begin
341			CheckHandle;
342	tony	350	Result := TFB30Statement.Create(self,transaction,sql,aSQLDialect,CursorName);
343	tony	45	end;
344
345			function TFB30Attachment.PrepareWithNamedParameters(transaction: ITransaction;
346	tony	270	sql: AnsiString; aSQLDialect: integer; GenerateParamNames: boolean;
347	tony	350	CaseSensitiveParams: boolean; CursorName: AnsiString): IStatement;
348	tony	45	begin
349			CheckHandle;
350			Result := TFB30Statement.CreateWithParameterNames(self,transaction,sql,aSQLDialect,
351	tony	350	GenerateParamNames,CaseSensitiveParams,CursorName);
352	tony	45	end;
353
354			function TFB30Attachment.GetEventHandler(Events: TStrings): IEvents;
355			begin
356			CheckHandle;
357			Result := TFB30Events.Create(self,Events);
358			end;
359
360			function TFB30Attachment.CreateBlob(transaction: ITransaction;
361			BlobMetaData: IBlobMetaData; BPB: IBPB): IBlob;
362			begin
363			CheckHandle;
364			Result := TFB30Blob.Create(self,transaction as TFB30Transaction, BlobMetaData,BPB);
365			end;
366
367			function TFB30Attachment.CreateBlob(transaction: ITransaction;
368			SubType: integer; aCharSetID: cardinal; BPB: IBPB): IBlob;
369			begin
370			CheckHandle;
371			Result := TFB30Blob.Create(self,transaction as TFB30Transaction, SubType,aCharSetID,BPB);
372			end;
373
374			function TFB30Attachment.OpenBlob(transaction: ITransaction;
375			BlobMetaData: IBlobMetaData; BlobID: TISC_QUAD; BPB: IBPB): IBlob;
376			begin
377			CheckHandle;
378			Result := TFB30Blob.Create(self,transaction as TFB30transaction,BlobMetaData,BlobID,BPB);
379			end;
380
381	tony	291	function TFB30Attachment.OpenArray(transaction: ITransaction;
382			ArrayMetaData: IArrayMetaData; ArrayID: TISC_QUAD): IArray;
383	tony	45	begin
384			CheckHandle;
385			Result := TFB30Array.Create(self,transaction as TFB30Transaction,
386	tony	291	ArrayMetaData,ArrayID);
387	tony	45	end;
388
389			function TFB30Attachment.CreateArray(transaction: ITransaction;
390			ArrayMetaData: IArrayMetaData): IArray;
391			begin
392			CheckHandle;
393			Result := TFB30Array.Create(self,transaction as TFB30Transaction,ArrayMetaData);
394			end;
395
396	tony	56	function TFB30Attachment.CreateArrayMetaData(SQLType: cardinal; tableName: AnsiString; columnName: AnsiString;
397	tony	47	Scale: integer; size: cardinal; aCharSetID: cardinal; dimensions: cardinal;
398			bounds: TArrayBounds): IArrayMetaData;
399			begin
400	tony	60	Result := TFB30ArrayMetaData.Create(self,SQLType,tableName,ColumnName,Scale,size,aCharSetID, dimensions,bounds);
401	tony	47	end;
402
403	tony	45	function TFB30Attachment.GetBlobMetaData(Transaction: ITransaction; tableName,
404	tony	56	columnName: AnsiString): IBlobMetaData;
405	tony	45	begin
406			CheckHandle;
407			Result := TFB30BlobMetaData.Create(self,Transaction as TFB30Transaction,tableName,columnName);
408			end;
409
410			function TFB30Attachment.GetArrayMetaData(Transaction: ITransaction; tableName,
411	tony	56	columnName: AnsiString): IArrayMetaData;
412	tony	45	begin
413			CheckHandle;
414			Result := TFB30ArrayMetaData.Create(self,Transaction as TFB30Transaction,tableName,columnName);
415			end;
416
417	tony	266	procedure TFB30Attachment.getFBVersion(version: TStrings);
418			var bufferObj: TVersionCallback;
419			begin
420	tony	267	version.Clear;
421	tony	315	bufferObj := TVersionCallback.Create(Firebird30ClientAPI,version);
422	tony	266	try
423			with FFirebird30ClientAPI do
424	tony	267	begin
425	tony	266	UtilIntf.getFbVersion(StatusIntf,FAttachmentIntf,bufferObj);
426	tony	267	Check4DataBaseError;
427			end;
428	tony	266	finally
429			bufferObj.Free;
430			end;
431			end;
432
433	tony	315	function TFB30Attachment.HasDecFloatSupport: boolean;
434			begin
435			Result := (FFirebird30ClientAPI.GetClientMajor >= 4) and
436			(GetODSMajorVersion >= 13);
437			end;
438
439	tony	345	function TFB30Attachment.HasBatchMode: boolean;
440			begin
441			Result := FFirebird30ClientAPI.Firebird4orLater and
442			(GetODSMajorVersion >= 13);
443			end;
444
445	tony	352	function TFB30Attachment.HasScollableCursors: boolean;
446			begin
447	tony	359	Result := (GetODSMajorVersion >= 12);
448	tony	352	end;
449
450	tony	315	function TFB30Attachment.GetTimeZoneServices: ITimeZoneServices;
451			begin
452			if not HasTimeZoneSupport then
453			IBError(ibxeNotSupported,[]);
454
455			if FTimeZoneServices = nil then
456			FTimeZoneServices := TFB30TimeZoneServices.Create(self);
457			Result := FTimeZoneServices;
458			end;
459
460			function TFB30Attachment.HasTimeZoneSupport: boolean;
461			begin
462			Result := (FFirebird30ClientAPI.GetClientMajor >= 4) and
463			(GetODSMajorVersion >= 13);
464			end;
465
466	tony	45	end.
467