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
  bufferObj := TVersionCallback.Create(version);
  try
    with FFirebird30ClientAPI do
       UtilIntf.getFbVersion(StatusIntf,FAttachmentIntf,bufferObj);
  finally
    bufferObj.Free;
  end;
end;

end.

Revision:	266
Committed:	Wed Dec 26 18:34:32 2018 UTC (5 years, 3 months ago) by tony
Content type:	text/x-pascal
File size:	14045 byte(s)
Log Message:	Fixes Merged
#	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 FB30Attachment;
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, 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	FFirebird30ClientAPI: TFB30ClientAPI;
50	protected
51	procedure CheckHandle; override;
52	public
53	constructor Create(api: TFB30ClientAPI; DatabaseName: AnsiString; aDPB: IDPB;
54	RaiseExceptionOnConnectError: boolean);
55	constructor CreateDatabase(api: TFB30ClientAPI; DatabaseName: AnsiString; aDPB: IDPB; RaiseExceptionOnError: boolean); overload;
56	constructor CreateDatabase(api: TFB30ClientAPI; sql: AnsiString; aSQLDialect: integer;
57	RaiseExceptionOnError: boolean); overload;
58	destructor Destroy; override;
59	function GetDBInfo(ReqBuffer: PByte; ReqBufLen: integer): IDBInformation;
60	override;
61	property AttachmentIntf: Firebird.IAttachment read FAttachmentIntf;
62	property Firebird30ClientAPI: TFB30ClientAPI read FFirebird30ClientAPI;
63
64	public
65	{IAttachment}
66	procedure Connect;
67	procedure Disconnect(Force: boolean=false); override;
68	function IsConnected: boolean; override;
69	procedure DropDatabase;
70	function StartTransaction(TPB: array of byte; DefaultCompletion: TTransactionCompletion): ITransaction; override;
71	function StartTransaction(TPB: ITPB; DefaultCompletion: TTransactionCompletion): ITransaction; override;
72	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	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	function CreateBlob(transaction: ITransaction; RelationName, ColumnName: AnsiString; BPB: IBPB=nil): IBlob; overload;
83	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	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
88	{Array}
89	function OpenArray(transaction: ITransaction; RelationName, ColumnName: AnsiString; ArrayID: TISC_QUAD): IArray;
90	function CreateArray(transaction: ITransaction; RelationName, ColumnName: AnsiString): IArray; overload;
91	function CreateArray(transaction: ITransaction; ArrayMetaData: IArrayMetaData): IArray; overload;
92	function CreateArrayMetaData(SQLType: cardinal; tableName: AnsiString;
93	columnName: AnsiString; Scale: integer; size: cardinal; aCharSetID: cardinal;
94	dimensions: cardinal; bounds: TArrayBounds): IArrayMetaData;
95
96
97	{Database Information}
98	function GetBlobMetaData(Transaction: ITransaction; tableName, columnName: AnsiString): IBlobMetaData;
99	function GetArrayMetaData(Transaction: ITransaction; tableName, columnName: AnsiString): IArrayMetaData;
100	procedure getFBVersion(version: TStrings);
101	end;
102
103	implementation
104
105	uses FB30Transaction, FB30Statement, FB30Array, FB30Blob, FBMessages,
106	FBOutputBlock, FB30Events, IBUtils;
107
108	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	{ TFB30Attachment }
134
135	procedure TFB30Attachment.CheckHandle;
136	begin
137	if FAttachmentIntf = nil then
138	IBError(ibxeDatabaseClosed,[nil]);
139	end;
140
141	constructor TFB30Attachment.Create(api: TFB30ClientAPI; DatabaseName: AnsiString; aDPB: IDPB;
142	RaiseExceptionOnConnectError: boolean);
143	begin
144	FFirebird30ClientAPI := api;
145	if aDPB = nil then
146	begin
147	if RaiseExceptionOnConnectError then
148	IBError(ibxeNoDPB,[nil]);
149	Exit;
150	end;
151	inherited Create(api,DatabaseName,aDPB,RaiseExceptionOnConnectError);
152	Connect;
153	end;
154
155	constructor TFB30Attachment.CreateDatabase(api: TFB30ClientAPI; DatabaseName: AnsiString; aDPB: IDPB;
156	RaiseExceptionOnError: boolean);
157	var Param: IDPBItem;
158	sql: AnsiString;
159	IsCreateDB: boolean;
160	begin
161	inherited Create(api,DatabaseName,aDPB,RaiseExceptionOnError);
162	FFirebird30ClientAPI := api;
163	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	with FFirebird30ClientAPI do
172	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	end
185	else
186	GetODSAndConnectionInfo;
187	end;
188	end;
189
190	constructor TFB30Attachment.CreateDatabase(api: TFB30ClientAPI; sql: AnsiString; aSQLDialect: integer;
191	RaiseExceptionOnError: boolean);
192	var IsCreateDB: boolean;
193	begin
194	inherited Create(api,'',nil,RaiseExceptionOnError);
195	FFirebird30ClientAPI := api;
196	FSQLDialect := aSQLDialect;
197	with FFirebird30ClientAPI do
198	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	GetODSAndConnectionInfo;
206	ExtractConnectString(sql,FDatabaseName);
207	DPBFromCreateSQL(sql);
208	end;
209
210	destructor TFB30Attachment.Destroy;
211	begin
212	inherited Destroy;
213	if assigned(FAttachmentIntf) then
214	FAttachmentIntf.release;
215	end;
216
217	function TFB30Attachment.GetDBInfo(ReqBuffer: PByte; ReqBufLen: integer): IDBInformation;
218	begin
219	Result := TDBInformation.Create(Firebird30ClientAPI);
220	with FFirebird30ClientAPI, Result as TDBInformation do
221	begin
222	FAttachmentIntf.getInfo(StatusIntf, ReqBufLen, BytePtr(ReqBuffer),
223	getBufSize, BytePtr(Buffer));
224	Check4DataBaseError;
225	end
226	end;
227
228	procedure TFB30Attachment.Connect;
229	begin
230	with FFirebird30ClientAPI do
231	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	GetODSAndConnectionInfo;
240	end;
241	end;
242
243	procedure TFB30Attachment.Disconnect(Force: boolean);
244	begin
245	if IsConnected then
246	with FFirebird30ClientAPI do
247	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	with FFirebird30ClientAPI do
268	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	Result := TFB30Transaction.Create(FFirebird30ClientAPI,self,TPB,DefaultCompletion);
281	end;
282
283	function TFB30Attachment.StartTransaction(TPB: ITPB;
284	DefaultCompletion: TTransactionCompletion): ITransaction;
285	begin
286	CheckHandle;
287	Result := TFB30Transaction.Create(FFirebird30ClientAPI,self,TPB,DefaultCompletion);
288	end;
289
290	procedure TFB30Attachment.ExecImmediate(transaction: ITransaction; sql: AnsiString;
291	aSQLDialect: integer);
292	begin
293	CheckHandle;
294	with FFirebird30ClientAPI do
295	begin
296	FAttachmentIntf.execute(StatusIntf,(transaction as TFB30Transaction).TransactionIntf,
297	Length(sql),PAnsiChar(sql),aSQLDialect,nil,nil,nil,nil);
298	Check4DataBaseError;
299	end;
300	end;
301
302	function TFB30Attachment.Prepare(transaction: ITransaction; sql: AnsiString;
303	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	sql: AnsiString; aSQLDialect: integer; GenerateParamNames: boolean): IStatement;
311	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	ColumnName: AnsiString; BPB: IBPB): IBlob;
325	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	ColumnName: AnsiString; BlobID: TISC_QUAD; BPB: IBPB): IBlob;
347	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	ColumnName: AnsiString; ArrayID: TISC_QUAD): IArray;
363	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	ColumnName: AnsiString): IArray;
371	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	function TFB30Attachment.CreateArrayMetaData(SQLType: cardinal; tableName: AnsiString; columnName: AnsiString;
385	Scale: integer; size: cardinal; aCharSetID: cardinal; dimensions: cardinal;
386	bounds: TArrayBounds): IArrayMetaData;
387	begin
388	Result := TFB30ArrayMetaData.Create(self,SQLType,tableName,ColumnName,Scale,size,aCharSetID, dimensions,bounds);
389	end;
390
391	function TFB30Attachment.GetBlobMetaData(Transaction: ITransaction; tableName,
392	columnName: AnsiString): IBlobMetaData;
393	begin
394	CheckHandle;
395	Result := TFB30BlobMetaData.Create(self,Transaction as TFB30Transaction,tableName,columnName);
396	end;
397
398	function TFB30Attachment.GetArrayMetaData(Transaction: ITransaction; tableName,
399	columnName: AnsiString): IArrayMetaData;
400	begin
401	CheckHandle;
402	Result := TFB30ArrayMetaData.Create(self,Transaction as TFB30Transaction,tableName,columnName);
403	end;
404
405	procedure TFB30Attachment.getFBVersion(version: TStrings);
406	var bufferObj: TVersionCallback;
407	begin
408	bufferObj := TVersionCallback.Create(version);
409	try
410	with FFirebird30ClientAPI do
411	UtilIntf.getFbVersion(StatusIntf,FAttachmentIntf,bufferObj);
412	finally
413	bufferObj.Free;
414	end;
415	end;
416
417	end.
418