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

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

function TFB30Attachment.PrepareWithNamedParameters(transaction: ITransaction;
  sql: AnsiString; aSQLDialect: integer; GenerateParamNames: boolean;
  CaseSensitiveParams: boolean): IStatement;
begin
  CheckHandle;
  Result := TFB30Statement.CreateWithParameterNames(self,transaction,sql,aSQLDialect,
         GenerateParamNames,CaseSensitiveParams);
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.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:	315
Committed:	Thu Feb 25 11:56:36 2021 UTC (3 years, 1 month ago) by tony
Content type:	text/x-pascal
File size:	14721 byte(s)
Log Message:	Updated for IBX 4 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			function Prepare(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer): IStatement; override;
78			function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
79	tony	270	aSQLDialect: integer; GenerateParamNames: boolean=false;
80			CaseSensitiveParams: boolean=false): 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
105			{Time Zone Support}
106			function GetTimeZoneServices: ITimeZoneServices; override;
107			function HasTimeZoneSupport: boolean; override;
108	tony	45	end;
109
110			implementation
111
112			uses FB30Transaction, FB30Statement, FB30Array, FB30Blob, FBMessages,
113	tony	315	FBOutputBlock, FB30Events, IBUtils, FB30TimeZoneServices;
114	tony	45
115	tony	266	type
116			{ TVersionCallback }
117
118			TVersionCallback = class(Firebird.IVersionCallbackImpl)
119			private
120			FOutput: TStrings;
121	tony	315	FFirebirdClientAPI: TFBClientAPI;
122	tony	266	public
123	tony	315	constructor Create(FirebirdClientAPI: TFBClientAPI; output: TStrings);
124	tony	266	procedure callback(status: Firebird.IStatus; text: PAnsiChar); override;
125			end;
126
127			{ TVersionCallback }
128
129	tony	315	constructor TVersionCallback.Create(FirebirdClientAPI: TFBClientAPI;
130			output: TStrings);
131	tony	266	begin
132			inherited Create;
133	tony	315	FFirebirdClientAPI := FirebirdClientAPI;
134	tony	266	FOutput := output;
135			end;
136
137			procedure TVersionCallback.callback(status: Firebird.IStatus; text: PAnsiChar);
138	tony	315	var StatusObj: TFB30StatusObject;
139	tony	266	begin
140	tony	315	if ((status.getState and status.STATE_ERRORS) <> 0) then
141			begin
142			StatusObj := TFB30StatusObject.Create(FFirebirdClientAPI,status);
143			try
144			raise EIBInterBaseError.Create(StatusObj);
145			finally
146			StatusObj.Free;
147			end;
148			end;
149	tony	266	FOutput.Add(text);
150			end;
151
152
153	tony	45	{ TFB30Attachment }
154
155	tony	315	procedure TFB30Attachment.SetUseRemoteICU(aValue: boolean);
156			begin
157			if (FUsingRemoteICU <> aValue) and (GetODSMajorVersion >= 13) then
158			begin
159			if aValue then
160			ExecImmediate([isc_tpb_write,isc_tpb_wait,isc_tpb_concurrency],'SET BIND OF TIME ZONE TO EXTENDED')
161			else
162			ExecImmediate([isc_tpb_write,isc_tpb_wait,isc_tpb_concurrency],'SET BIND OF TIME ZONE TO NATIVE');
163			FUsingRemoteICU := aValue;
164			end;
165			end;
166
167	tony	45	procedure TFB30Attachment.CheckHandle;
168			begin
169			if FAttachmentIntf = nil then
170			IBError(ibxeDatabaseClosed,[nil]);
171			end;
172
173	tony	263	constructor TFB30Attachment.Create(api: TFB30ClientAPI; DatabaseName: AnsiString; aDPB: IDPB;
174	tony	45	RaiseExceptionOnConnectError: boolean);
175			begin
176	tony	263	FFirebird30ClientAPI := api;
177	tony	45	if aDPB = nil then
178			begin
179			if RaiseExceptionOnConnectError then
180			IBError(ibxeNoDPB,[nil]);
181			Exit;
182			end;
183	tony	263	inherited Create(api,DatabaseName,aDPB,RaiseExceptionOnConnectError);
184	tony	45	Connect;
185			end;
186
187	tony	263	constructor TFB30Attachment.CreateDatabase(api: TFB30ClientAPI; DatabaseName: AnsiString; aDPB: IDPB;
188	tony	45	RaiseExceptionOnError: boolean);
189			var Param: IDPBItem;
190	tony	56	sql: AnsiString;
191	tony	45	IsCreateDB: boolean;
192			begin
193	tony	263	inherited Create(api,DatabaseName,aDPB,RaiseExceptionOnError);
194			FFirebird30ClientAPI := api;
195	tony	45	IsCreateDB := true;
196			if aDPB <> nil then
197			begin
198			Param := aDPB.Find(isc_dpb_set_db_SQL_dialect);
199			if Param <> nil then
200			FSQLDialect := Param.AsByte;
201			end;
202			sql := GenerateCreateDatabaseSQL(DatabaseName,aDPB);
203	tony	263	with FFirebird30ClientAPI do
204	tony	45	begin
205			FAttachmentIntf := UtilIntf.executeCreateDatabase(StatusIntf,Length(sql),
206			PAnsiChar(sql),FSQLDialect,@IsCreateDB);
207			if FRaiseExceptionOnConnectError then Check4DataBaseError;
208			if InErrorState then
209			FAttachmentIntf := nil
210			else
211			if aDPB <> nil then
212			{Connect using known parameters}
213			begin
214			Disconnect;
215			Connect;
216	tony	117	end
217			else
218			GetODSAndConnectionInfo;
219	tony	45	end;
220			end;
221
222	tony	263	constructor TFB30Attachment.CreateDatabase(api: TFB30ClientAPI; sql: AnsiString; aSQLDialect: integer;
223	tony	47	RaiseExceptionOnError: boolean);
224			var IsCreateDB: boolean;
225			begin
226	tony	263	inherited Create(api,'',nil,RaiseExceptionOnError);
227			FFirebird30ClientAPI := api;
228	tony	47	FSQLDialect := aSQLDialect;
229	tony	263	with FFirebird30ClientAPI do
230	tony	47	begin
231			FAttachmentIntf := UtilIntf.executeCreateDatabase(StatusIntf,Length(sql),
232			PAnsiChar(sql),aSQLDialect,@IsCreateDB);
233			if FRaiseExceptionOnConnectError then Check4DataBaseError;
234			if InErrorState then
235			FAttachmentIntf := nil;
236			end;
237	tony	117	GetODSAndConnectionInfo;
238			ExtractConnectString(sql,FDatabaseName);
239			DPBFromCreateSQL(sql);
240	tony	47	end;
241
242	tony	45	destructor TFB30Attachment.Destroy;
243			begin
244			inherited Destroy;
245			if assigned(FAttachmentIntf) then
246			FAttachmentIntf.release;
247			end;
248
249	tony	143	function TFB30Attachment.GetDBInfo(ReqBuffer: PByte; ReqBufLen: integer): IDBInformation;
250			begin
251	tony	263	Result := TDBInformation.Create(Firebird30ClientAPI);
252			with FFirebird30ClientAPI, Result as TDBInformation do
253	tony	143	begin
254			FAttachmentIntf.getInfo(StatusIntf, ReqBufLen, BytePtr(ReqBuffer),
255			getBufSize, BytePtr(Buffer));
256			Check4DataBaseError;
257			end
258			end;
259
260	tony	45	procedure TFB30Attachment.Connect;
261			begin
262	tony	263	with FFirebird30ClientAPI do
263	tony	45	begin
264			FAttachmentIntf := ProviderIntf.attachDatabase(StatusIntf,PAnsiChar(FDatabaseName),
265			(DPB as TDPB).getDataLength,
266			BytePtr((DPB as TDPB).getBuffer));
267			if FRaiseExceptionOnConnectError then Check4DataBaseError;
268			if InErrorState then
269			FAttachmentIntf := nil
270			else
271	tony	117	GetODSAndConnectionInfo;
272	tony	315
273	tony	45	end;
274			end;
275
276			procedure TFB30Attachment.Disconnect(Force: boolean);
277			begin
278			if IsConnected then
279	tony	263	with FFirebird30ClientAPI do
280	tony	45	begin
281			EndAllTransactions;
282			FAttachmentIntf.Detach(StatusIntf);
283			if not Force and InErrorState then
284			IBDataBaseError;
285			FAttachmentIntf := nil;
286			FHasDefaultCharSet := false;
287			FCodePage := CP_NONE;
288			FCharSetID := 0;
289	tony	315	FTimeZoneServices := nil;
290	tony	45	end;
291			end;
292
293			function TFB30Attachment.IsConnected: boolean;
294			begin
295			Result := FAttachmentIntf <> nil;
296			end;
297
298			procedure TFB30Attachment.DropDatabase;
299			begin
300			if IsConnected then
301	tony	263	with FFirebird30ClientAPI do
302	tony	45	begin
303			EndAllTransactions;
304			FAttachmentIntf.dropDatabase(StatusIntf);
305			Check4DataBaseError;
306			FAttachmentIntf := nil;
307			end;
308			end;
309
310			function TFB30Attachment.StartTransaction(TPB: array of byte;
311			DefaultCompletion: TTransactionCompletion): ITransaction;
312			begin
313			CheckHandle;
314	tony	263	Result := TFB30Transaction.Create(FFirebird30ClientAPI,self,TPB,DefaultCompletion);
315	tony	45	end;
316
317			function TFB30Attachment.StartTransaction(TPB: ITPB;
318			DefaultCompletion: TTransactionCompletion): ITransaction;
319			begin
320			CheckHandle;
321	tony	263	Result := TFB30Transaction.Create(FFirebird30ClientAPI,self,TPB,DefaultCompletion);
322	tony	45	end;
323
324	tony	56	procedure TFB30Attachment.ExecImmediate(transaction: ITransaction; sql: AnsiString;
325	tony	45	aSQLDialect: integer);
326			begin
327			CheckHandle;
328	tony	263	with FFirebird30ClientAPI do
329	tony	45	begin
330			FAttachmentIntf.execute(StatusIntf,(transaction as TFB30Transaction).TransactionIntf,
331	tony	56	Length(sql),PAnsiChar(sql),aSQLDialect,nil,nil,nil,nil);
332	tony	45	Check4DataBaseError;
333			end;
334			end;
335
336	tony	56	function TFB30Attachment.Prepare(transaction: ITransaction; sql: AnsiString;
337	tony	45	aSQLDialect: integer): IStatement;
338			begin
339			CheckHandle;
340			Result := TFB30Statement.Create(self,transaction,sql,aSQLDialect);
341			end;
342
343			function TFB30Attachment.PrepareWithNamedParameters(transaction: ITransaction;
344	tony	270	sql: AnsiString; aSQLDialect: integer; GenerateParamNames: boolean;
345			CaseSensitiveParams: boolean): IStatement;
346	tony	45	begin
347			CheckHandle;
348			Result := TFB30Statement.CreateWithParameterNames(self,transaction,sql,aSQLDialect,
349	tony	270	GenerateParamNames,CaseSensitiveParams);
350	tony	45	end;
351
352			function TFB30Attachment.GetEventHandler(Events: TStrings): IEvents;
353			begin
354			CheckHandle;
355			Result := TFB30Events.Create(self,Events);
356			end;
357
358			function TFB30Attachment.CreateBlob(transaction: ITransaction;
359			BlobMetaData: IBlobMetaData; BPB: IBPB): IBlob;
360			begin
361			CheckHandle;
362			Result := TFB30Blob.Create(self,transaction as TFB30Transaction, BlobMetaData,BPB);
363			end;
364
365			function TFB30Attachment.CreateBlob(transaction: ITransaction;
366			SubType: integer; aCharSetID: cardinal; BPB: IBPB): IBlob;
367			begin
368			CheckHandle;
369			Result := TFB30Blob.Create(self,transaction as TFB30Transaction, SubType,aCharSetID,BPB);
370			end;
371
372			function TFB30Attachment.OpenBlob(transaction: ITransaction;
373			BlobMetaData: IBlobMetaData; BlobID: TISC_QUAD; BPB: IBPB): IBlob;
374			begin
375			CheckHandle;
376			Result := TFB30Blob.Create(self,transaction as TFB30transaction,BlobMetaData,BlobID,BPB);
377			end;
378
379	tony	291	function TFB30Attachment.OpenArray(transaction: ITransaction;
380			ArrayMetaData: IArrayMetaData; ArrayID: TISC_QUAD): IArray;
381	tony	45	begin
382			CheckHandle;
383			Result := TFB30Array.Create(self,transaction as TFB30Transaction,
384	tony	291	ArrayMetaData,ArrayID);
385	tony	45	end;
386
387			function TFB30Attachment.CreateArray(transaction: ITransaction;
388			ArrayMetaData: IArrayMetaData): IArray;
389			begin
390			CheckHandle;
391			Result := TFB30Array.Create(self,transaction as TFB30Transaction,ArrayMetaData);
392			end;
393
394	tony	56	function TFB30Attachment.CreateArrayMetaData(SQLType: cardinal; tableName: AnsiString; columnName: AnsiString;
395	tony	47	Scale: integer; size: cardinal; aCharSetID: cardinal; dimensions: cardinal;
396			bounds: TArrayBounds): IArrayMetaData;
397			begin
398	tony	60	Result := TFB30ArrayMetaData.Create(self,SQLType,tableName,ColumnName,Scale,size,aCharSetID, dimensions,bounds);
399	tony	47	end;
400
401	tony	45	function TFB30Attachment.GetBlobMetaData(Transaction: ITransaction; tableName,
402	tony	56	columnName: AnsiString): IBlobMetaData;
403	tony	45	begin
404			CheckHandle;
405			Result := TFB30BlobMetaData.Create(self,Transaction as TFB30Transaction,tableName,columnName);
406			end;
407
408			function TFB30Attachment.GetArrayMetaData(Transaction: ITransaction; tableName,
409	tony	56	columnName: AnsiString): IArrayMetaData;
410	tony	45	begin
411			CheckHandle;
412			Result := TFB30ArrayMetaData.Create(self,Transaction as TFB30Transaction,tableName,columnName);
413			end;
414
415	tony	266	procedure TFB30Attachment.getFBVersion(version: TStrings);
416			var bufferObj: TVersionCallback;
417			begin
418	tony	267	version.Clear;
419	tony	315	bufferObj := TVersionCallback.Create(Firebird30ClientAPI,version);
420	tony	266	try
421			with FFirebird30ClientAPI do
422	tony	267	begin
423	tony	266	UtilIntf.getFbVersion(StatusIntf,FAttachmentIntf,bufferObj);
424	tony	267	Check4DataBaseError;
425			end;
426	tony	266	finally
427			bufferObj.Free;
428			end;
429			end;
430
431	tony	315	function TFB30Attachment.HasDecFloatSupport: boolean;
432			begin
433			Result := (FFirebird30ClientAPI.GetClientMajor >= 4) and
434			(GetODSMajorVersion >= 13);
435			end;
436
437			function TFB30Attachment.GetTimeZoneServices: ITimeZoneServices;
438			begin
439			if not HasTimeZoneSupport then
440			IBError(ibxeNotSupported,[]);
441
442			if FTimeZoneServices = nil then
443			FTimeZoneServices := TFB30TimeZoneServices.Create(self);
444			Result := FTimeZoneServices;
445			end;
446
447			function TFB30Attachment.HasTimeZoneSupport: boolean;
448			begin
449			Result := (FFirebird30ClientAPI.GetClientMajor >= 4) and
450			(GetODSMajorVersion >= 13);
451			end;
452
453	tony	45	end.
454