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, FB30ClientAPI, Firebird, IB, FBActivityMonitor, FBParamBlock;

type

  { TFB30Attachment }

  TFB30Attachment = class(TFBAttachment,IAttachment, IActivityMonitor)
  private
    FAttachmentIntf: Firebird.IAttachment;
    FFirebird30ClientAPI: TFB30ClientAPI;
  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): IStatement; override;
    function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
                       aSQLDialect: integer; GenerateParamNames: boolean=false): 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; RelationName, ColumnName: AnsiString; BPB: IBPB=nil): IBlob; overload;
    function CreateBlob(transaction: ITransaction; BlobMetaData: IBlobMetaData; BPB: IBPB=nil): IBlob; overload;
    function CreateBlob(transaction: ITransaction; SubType: integer; aCharSetID: cardinal=0; BPB: IBPB=nil): IBlob; overload;
    function OpenBlob(transaction: ITransaction; RelationName, ColumnName: AnsiString; BlobID: TISC_QUAD; 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; RelationName, ColumnName: AnsiString; ArrayID: TISC_QUAD): IArray;
    function CreateArray(transaction: ITransaction; RelationName, ColumnName: AnsiString): IArray; overload;
    function CreateArray(transaction: ITransaction; ArrayMetaData: IArrayMetaData): IArray; overload;
    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;
    function GetArrayMetaData(Transaction: ITransaction; tableName, columnName: AnsiString): IArrayMetaData;
    procedure getFBVersion(version: TStrings);
  end;

implementation

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

type
  { TVersionCallback }

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

{ TVersionCallback }

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

procedure TVersionCallback.callback(status: Firebird.IStatus; text: PAnsiChar);
begin
  FOutput.Add(text);
end;


{ TFB30Attachment }

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;
    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): IStatement;
begin
  CheckHandle;
  Result := TFB30Statement.Create(self,transaction,sql,aSQLDialect);
end;

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

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

function TFB30Attachment.CreateBlob(transaction: ITransaction; RelationName,
  ColumnName: AnsiString; BPB: IBPB): IBlob;
begin
  CheckHandle;
  Result := TFB30Blob.Create(self,transaction as TFB30Transaction,
              TFB30BlobMetaData.Create(self,Transaction as TFB30Transaction,RelationName,ColumnName),BPB);
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; RelationName,
  ColumnName: AnsiString; BlobID: TISC_QUAD; BPB: IBPB): IBlob;
begin
  CheckHandle;
  Result := TFB30Blob.Create(self,transaction as TFB30transaction,
                TFB30BlobMetaData.Create(self,Transaction as TFB30Transaction,RelationName,ColumnName),
                BlobID,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; RelationName,
  ColumnName: AnsiString; ArrayID: TISC_QUAD): IArray;
begin
  CheckHandle;
  Result := TFB30Array.Create(self,transaction as TFB30Transaction,
                    GetArrayMetaData(transaction,RelationName,ColumnName),ArrayID);
end;

function TFB30Attachment.CreateArray(transaction: ITransaction; RelationName,
  ColumnName: AnsiString): IArray;
begin
  CheckHandle;
  Result := TFB30Array.Create(self,transaction as TFB30Transaction,
                    GetArrayMetaData(transaction,RelationName,ColumnName));
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(version);
  try
    with FFirebird30ClientAPI do
    begin
       UtilIntf.getFbVersion(StatusIntf,FAttachmentIntf,bufferObj);
       Check4DataBaseError;
    end;
  finally
    bufferObj.Free;
  end;
end;

end.

Revision:	267
Committed:	Fri Dec 28 10:44:23 2018 UTC (5 years, 3 months ago) by tony
Content type:	text/x-pascal
File size:	14109 byte(s)
Log Message:	Fixes Merged
#	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			Classes, SysUtils, FBAttachment, FB30ClientAPI, Firebird, IB, FBActivityMonitor, FBParamBlock;
41
42			type
43
44			{ TFB30Attachment }
45
46			TFB30Attachment = class(TFBAttachment,IAttachment, IActivityMonitor)
47			private
48			FAttachmentIntf: Firebird.IAttachment;
49	tony	263	FFirebird30ClientAPI: TFB30ClientAPI;
50	tony	45	protected
51			procedure CheckHandle; override;
52			public
53	tony	263	constructor Create(api: TFB30ClientAPI; DatabaseName: AnsiString; aDPB: IDPB;
54	tony	45	RaiseExceptionOnConnectError: boolean);
55	tony	263	constructor CreateDatabase(api: TFB30ClientAPI; DatabaseName: AnsiString; aDPB: IDPB; RaiseExceptionOnError: boolean); overload;
56			constructor CreateDatabase(api: TFB30ClientAPI; sql: AnsiString; aSQLDialect: integer;
57	tony	47	RaiseExceptionOnError: boolean); overload;
58	tony	45	destructor Destroy; override;
59	tony	143	function GetDBInfo(ReqBuffer: PByte; ReqBufLen: integer): IDBInformation;
60			override;
61	tony	45	property AttachmentIntf: Firebird.IAttachment read FAttachmentIntf;
62	tony	263	property Firebird30ClientAPI: TFB30ClientAPI read FFirebird30ClientAPI;
63	tony	45
64			public
65			{IAttachment}
66			procedure Connect;
67			procedure Disconnect(Force: boolean=false); override;
68	tony	117	function IsConnected: boolean; override;
69	tony	45	procedure DropDatabase;
70			function StartTransaction(TPB: array of byte; DefaultCompletion: TTransactionCompletion): ITransaction; override;
71			function StartTransaction(TPB: ITPB; DefaultCompletion: TTransactionCompletion): ITransaction; override;
72	tony	56	procedure ExecImmediate(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer); override;
73			function Prepare(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer): IStatement; override;
74			function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
75	tony	45	aSQLDialect: integer; GenerateParamNames: boolean=false): IStatement; override;
76
77			{Events}
78			function GetEventHandler(Events: TStrings): IEvents; override;
79
80			{Blob - may use to open existing Blobs. However, ISQLData.AsBlob is preferred}
81
82	tony	56	function CreateBlob(transaction: ITransaction; RelationName, ColumnName: AnsiString; BPB: IBPB=nil): IBlob; overload;
83	tony	45	function CreateBlob(transaction: ITransaction; BlobMetaData: IBlobMetaData; BPB: IBPB=nil): IBlob; overload;
84			function CreateBlob(transaction: ITransaction; SubType: integer; aCharSetID: cardinal=0; BPB: IBPB=nil): IBlob; overload;
85	tony	56	function OpenBlob(transaction: ITransaction; RelationName, ColumnName: AnsiString; BlobID: TISC_QUAD; BPB: IBPB=nil): IBlob; overload;
86			function OpenBlob(transaction: ITransaction; BlobMetaData: IBlobMetaData; BlobID: TISC_QUAD; BPB: IBPB=nil): IBlob; overload; override;
87	tony	45
88			{Array}
89	tony	56	function OpenArray(transaction: ITransaction; RelationName, ColumnName: AnsiString; ArrayID: TISC_QUAD): IArray;
90			function CreateArray(transaction: ITransaction; RelationName, ColumnName: AnsiString): IArray; overload;
91	tony	45	function CreateArray(transaction: ITransaction; ArrayMetaData: IArrayMetaData): IArray; overload;
92	tony	56	function CreateArrayMetaData(SQLType: cardinal; tableName: AnsiString;
93			columnName: AnsiString; Scale: integer; size: cardinal; aCharSetID: cardinal;
94	tony	263	dimensions: cardinal; bounds: TArrayBounds): IArrayMetaData;
95	tony	45
96	tony	47
97	tony	45	{Database Information}
98	tony	56	function GetBlobMetaData(Transaction: ITransaction; tableName, columnName: AnsiString): IBlobMetaData;
99			function GetArrayMetaData(Transaction: ITransaction; tableName, columnName: AnsiString): IArrayMetaData;
100	tony	266	procedure getFBVersion(version: TStrings);
101	tony	45	end;
102
103			implementation
104
105			uses FB30Transaction, FB30Statement, FB30Array, FB30Blob, FBMessages,
106	tony	117	FBOutputBlock, FB30Events, IBUtils;
107	tony	45
108	tony	266	type
109			{ TVersionCallback }
110
111			TVersionCallback = class(Firebird.IVersionCallbackImpl)
112			private
113			FOutput: TStrings;
114			public
115			constructor Create(output: TStrings);
116			procedure callback(status: Firebird.IStatus; text: PAnsiChar); override;
117			end;
118
119			{ TVersionCallback }
120
121			constructor TVersionCallback.Create(output: TStrings);
122			begin
123			inherited Create;
124			FOutput := output;
125			end;
126
127			procedure TVersionCallback.callback(status: Firebird.IStatus; text: PAnsiChar);
128			begin
129			FOutput.Add(text);
130			end;
131
132
133	tony	45	{ TFB30Attachment }
134
135			procedure TFB30Attachment.CheckHandle;
136			begin
137			if FAttachmentIntf = nil then
138			IBError(ibxeDatabaseClosed,[nil]);
139			end;
140
141	tony	263	constructor TFB30Attachment.Create(api: TFB30ClientAPI; DatabaseName: AnsiString; aDPB: IDPB;
142	tony	45	RaiseExceptionOnConnectError: boolean);
143			begin
144	tony	263	FFirebird30ClientAPI := api;
145	tony	45	if aDPB = nil then
146			begin
147			if RaiseExceptionOnConnectError then
148			IBError(ibxeNoDPB,[nil]);
149			Exit;
150			end;
151	tony	263	inherited Create(api,DatabaseName,aDPB,RaiseExceptionOnConnectError);
152	tony	45	Connect;
153			end;
154
155	tony	263	constructor TFB30Attachment.CreateDatabase(api: TFB30ClientAPI; DatabaseName: AnsiString; aDPB: IDPB;
156	tony	45	RaiseExceptionOnError: boolean);
157			var Param: IDPBItem;
158	tony	56	sql: AnsiString;
159	tony	45	IsCreateDB: boolean;
160			begin
161	tony	263	inherited Create(api,DatabaseName,aDPB,RaiseExceptionOnError);
162			FFirebird30ClientAPI := api;
163	tony	45	IsCreateDB := true;
164			if aDPB <> nil then
165			begin
166			Param := aDPB.Find(isc_dpb_set_db_SQL_dialect);
167			if Param <> nil then
168			FSQLDialect := Param.AsByte;
169			end;
170			sql := GenerateCreateDatabaseSQL(DatabaseName,aDPB);
171	tony	263	with FFirebird30ClientAPI do
172	tony	45	begin
173			FAttachmentIntf := UtilIntf.executeCreateDatabase(StatusIntf,Length(sql),
174			PAnsiChar(sql),FSQLDialect,@IsCreateDB);
175			if FRaiseExceptionOnConnectError then Check4DataBaseError;
176			if InErrorState then
177			FAttachmentIntf := nil
178			else
179			if aDPB <> nil then
180			{Connect using known parameters}
181			begin
182			Disconnect;
183			Connect;
184	tony	117	end
185			else
186			GetODSAndConnectionInfo;
187	tony	45	end;
188			end;
189
190	tony	263	constructor TFB30Attachment.CreateDatabase(api: TFB30ClientAPI; sql: AnsiString; aSQLDialect: integer;
191	tony	47	RaiseExceptionOnError: boolean);
192			var IsCreateDB: boolean;
193			begin
194	tony	263	inherited Create(api,'',nil,RaiseExceptionOnError);
195			FFirebird30ClientAPI := api;
196	tony	47	FSQLDialect := aSQLDialect;
197	tony	263	with FFirebird30ClientAPI do
198	tony	47	begin
199			FAttachmentIntf := UtilIntf.executeCreateDatabase(StatusIntf,Length(sql),
200			PAnsiChar(sql),aSQLDialect,@IsCreateDB);
201			if FRaiseExceptionOnConnectError then Check4DataBaseError;
202			if InErrorState then
203			FAttachmentIntf := nil;
204			end;
205	tony	117	GetODSAndConnectionInfo;
206			ExtractConnectString(sql,FDatabaseName);
207			DPBFromCreateSQL(sql);
208	tony	47	end;
209
210	tony	45	destructor TFB30Attachment.Destroy;
211			begin
212			inherited Destroy;
213			if assigned(FAttachmentIntf) then
214			FAttachmentIntf.release;
215			end;
216
217	tony	143	function TFB30Attachment.GetDBInfo(ReqBuffer: PByte; ReqBufLen: integer): IDBInformation;
218			begin
219	tony	263	Result := TDBInformation.Create(Firebird30ClientAPI);
220			with FFirebird30ClientAPI, Result as TDBInformation do
221	tony	143	begin
222			FAttachmentIntf.getInfo(StatusIntf, ReqBufLen, BytePtr(ReqBuffer),
223			getBufSize, BytePtr(Buffer));
224			Check4DataBaseError;
225			end
226			end;
227
228	tony	45	procedure TFB30Attachment.Connect;
229			begin
230	tony	263	with FFirebird30ClientAPI do
231	tony	45	begin
232			FAttachmentIntf := ProviderIntf.attachDatabase(StatusIntf,PAnsiChar(FDatabaseName),
233			(DPB as TDPB).getDataLength,
234			BytePtr((DPB as TDPB).getBuffer));
235			if FRaiseExceptionOnConnectError then Check4DataBaseError;
236			if InErrorState then
237			FAttachmentIntf := nil
238			else
239	tony	117	GetODSAndConnectionInfo;
240	tony	45	end;
241			end;
242
243			procedure TFB30Attachment.Disconnect(Force: boolean);
244			begin
245			if IsConnected then
246	tony	263	with FFirebird30ClientAPI do
247	tony	45	begin
248			EndAllTransactions;
249			FAttachmentIntf.Detach(StatusIntf);
250			if not Force and InErrorState then
251			IBDataBaseError;
252			FAttachmentIntf := nil;
253			FHasDefaultCharSet := false;
254			FCodePage := CP_NONE;
255			FCharSetID := 0;
256			end;
257			end;
258
259			function TFB30Attachment.IsConnected: boolean;
260			begin
261			Result := FAttachmentIntf <> nil;
262			end;
263
264			procedure TFB30Attachment.DropDatabase;
265			begin
266			if IsConnected then
267	tony	263	with FFirebird30ClientAPI do
268	tony	45	begin
269			EndAllTransactions;
270			FAttachmentIntf.dropDatabase(StatusIntf);
271			Check4DataBaseError;
272			FAttachmentIntf := nil;
273			end;
274			end;
275
276			function TFB30Attachment.StartTransaction(TPB: array of byte;
277			DefaultCompletion: TTransactionCompletion): ITransaction;
278			begin
279			CheckHandle;
280	tony	263	Result := TFB30Transaction.Create(FFirebird30ClientAPI,self,TPB,DefaultCompletion);
281	tony	45	end;
282
283			function TFB30Attachment.StartTransaction(TPB: ITPB;
284			DefaultCompletion: TTransactionCompletion): ITransaction;
285			begin
286			CheckHandle;
287	tony	263	Result := TFB30Transaction.Create(FFirebird30ClientAPI,self,TPB,DefaultCompletion);
288	tony	45	end;
289
290	tony	56	procedure TFB30Attachment.ExecImmediate(transaction: ITransaction; sql: AnsiString;
291	tony	45	aSQLDialect: integer);
292			begin
293			CheckHandle;
294	tony	263	with FFirebird30ClientAPI do
295	tony	45	begin
296			FAttachmentIntf.execute(StatusIntf,(transaction as TFB30Transaction).TransactionIntf,
297	tony	56	Length(sql),PAnsiChar(sql),aSQLDialect,nil,nil,nil,nil);
298	tony	45	Check4DataBaseError;
299			end;
300			end;
301
302	tony	56	function TFB30Attachment.Prepare(transaction: ITransaction; sql: AnsiString;
303	tony	45	aSQLDialect: integer): IStatement;
304			begin
305			CheckHandle;
306			Result := TFB30Statement.Create(self,transaction,sql,aSQLDialect);
307			end;
308
309			function TFB30Attachment.PrepareWithNamedParameters(transaction: ITransaction;
310	tony	56	sql: AnsiString; aSQLDialect: integer; GenerateParamNames: boolean): IStatement;
311	tony	45	begin
312			CheckHandle;
313			Result := TFB30Statement.CreateWithParameterNames(self,transaction,sql,aSQLDialect,
314			GenerateParamNames);
315			end;
316
317			function TFB30Attachment.GetEventHandler(Events: TStrings): IEvents;
318			begin
319			CheckHandle;
320			Result := TFB30Events.Create(self,Events);
321			end;
322
323			function TFB30Attachment.CreateBlob(transaction: ITransaction; RelationName,
324	tony	56	ColumnName: AnsiString; BPB: IBPB): IBlob;
325	tony	45	begin
326			CheckHandle;
327			Result := TFB30Blob.Create(self,transaction as TFB30Transaction,
328			TFB30BlobMetaData.Create(self,Transaction as TFB30Transaction,RelationName,ColumnName),BPB);
329			end;
330
331			function TFB30Attachment.CreateBlob(transaction: ITransaction;
332			BlobMetaData: IBlobMetaData; BPB: IBPB): IBlob;
333			begin
334			CheckHandle;
335			Result := TFB30Blob.Create(self,transaction as TFB30Transaction, BlobMetaData,BPB);
336			end;
337
338			function TFB30Attachment.CreateBlob(transaction: ITransaction;
339			SubType: integer; aCharSetID: cardinal; BPB: IBPB): IBlob;
340			begin
341			CheckHandle;
342			Result := TFB30Blob.Create(self,transaction as TFB30Transaction, SubType,aCharSetID,BPB);
343			end;
344
345			function TFB30Attachment.OpenBlob(transaction: ITransaction; RelationName,
346	tony	56	ColumnName: AnsiString; BlobID: TISC_QUAD; BPB: IBPB): IBlob;
347	tony	45	begin
348			CheckHandle;
349			Result := TFB30Blob.Create(self,transaction as TFB30transaction,
350			TFB30BlobMetaData.Create(self,Transaction as TFB30Transaction,RelationName,ColumnName),
351			BlobID,BPB);
352			end;
353
354			function TFB30Attachment.OpenBlob(transaction: ITransaction;
355			BlobMetaData: IBlobMetaData; BlobID: TISC_QUAD; BPB: IBPB): IBlob;
356			begin
357			CheckHandle;
358			Result := TFB30Blob.Create(self,transaction as TFB30transaction,BlobMetaData,BlobID,BPB);
359			end;
360
361			function TFB30Attachment.OpenArray(transaction: ITransaction; RelationName,
362	tony	56	ColumnName: AnsiString; ArrayID: TISC_QUAD): IArray;
363	tony	45	begin
364			CheckHandle;
365			Result := TFB30Array.Create(self,transaction as TFB30Transaction,
366			GetArrayMetaData(transaction,RelationName,ColumnName),ArrayID);
367			end;
368
369			function TFB30Attachment.CreateArray(transaction: ITransaction; RelationName,
370	tony	56	ColumnName: AnsiString): IArray;
371	tony	45	begin
372			CheckHandle;
373			Result := TFB30Array.Create(self,transaction as TFB30Transaction,
374			GetArrayMetaData(transaction,RelationName,ColumnName));
375			end;
376
377			function TFB30Attachment.CreateArray(transaction: ITransaction;
378			ArrayMetaData: IArrayMetaData): IArray;
379			begin
380			CheckHandle;
381			Result := TFB30Array.Create(self,transaction as TFB30Transaction,ArrayMetaData);
382			end;
383
384	tony	56	function TFB30Attachment.CreateArrayMetaData(SQLType: cardinal; tableName: AnsiString; columnName: AnsiString;
385	tony	47	Scale: integer; size: cardinal; aCharSetID: cardinal; dimensions: cardinal;
386			bounds: TArrayBounds): IArrayMetaData;
387			begin
388	tony	60	Result := TFB30ArrayMetaData.Create(self,SQLType,tableName,ColumnName,Scale,size,aCharSetID, dimensions,bounds);
389	tony	47	end;
390
391	tony	45	function TFB30Attachment.GetBlobMetaData(Transaction: ITransaction; tableName,
392	tony	56	columnName: AnsiString): IBlobMetaData;
393	tony	45	begin
394			CheckHandle;
395			Result := TFB30BlobMetaData.Create(self,Transaction as TFB30Transaction,tableName,columnName);
396			end;
397
398			function TFB30Attachment.GetArrayMetaData(Transaction: ITransaction; tableName,
399	tony	56	columnName: AnsiString): IArrayMetaData;
400	tony	45	begin
401			CheckHandle;
402			Result := TFB30ArrayMetaData.Create(self,Transaction as TFB30Transaction,tableName,columnName);
403			end;
404
405	tony	266	procedure TFB30Attachment.getFBVersion(version: TStrings);
406			var bufferObj: TVersionCallback;
407			begin
408	tony	267	version.Clear;
409	tony	266	bufferObj := TVersionCallback.Create(version);
410			try
411			with FFirebird30ClientAPI do
412	tony	267	begin
413	tony	266	UtilIntf.getFbVersion(StatusIntf,FAttachmentIntf,bufferObj);
414	tony	267	Check4DataBaseError;
415			end;
416	tony	266	finally
417			bufferObj.Free;
418			end;
419			end;
420
421	tony	45	end.
422