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;
    function HasBatchMode: 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.HasBatchMode: boolean;
begin
  Result := FFirebird30ClientAPI.Firebird4orLater 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:	345
Committed:	Mon Aug 23 14:22:29 2021 UTC (2 years, 7 months ago) by tony
Content type:	text/x-pascal
Original Path:	*ibx/trunk/fbintf/client/3.0/FB30Attachment.pas*
File size:	14914 byte(s)
Log Message:	Merged into public 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	tony	345	function HasBatchMode: boolean; override;
105	tony	315
106			{Time Zone Support}
107			function GetTimeZoneServices: ITimeZoneServices; override;
108			function HasTimeZoneSupport: boolean; override;
109	tony	45	end;
110
111			implementation
112
113			uses FB30Transaction, FB30Statement, FB30Array, FB30Blob, FBMessages,
114	tony	315	FBOutputBlock, FB30Events, IBUtils, FB30TimeZoneServices;
115	tony	45
116	tony	266	type
117			{ TVersionCallback }
118
119			TVersionCallback = class(Firebird.IVersionCallbackImpl)
120			private
121			FOutput: TStrings;
122	tony	315	FFirebirdClientAPI: TFBClientAPI;
123	tony	266	public
124	tony	315	constructor Create(FirebirdClientAPI: TFBClientAPI; output: TStrings);
125	tony	266	procedure callback(status: Firebird.IStatus; text: PAnsiChar); override;
126			end;
127
128			{ TVersionCallback }
129
130	tony	315	constructor TVersionCallback.Create(FirebirdClientAPI: TFBClientAPI;
131			output: TStrings);
132	tony	266	begin
133			inherited Create;
134	tony	315	FFirebirdClientAPI := FirebirdClientAPI;
135	tony	266	FOutput := output;
136			end;
137
138			procedure TVersionCallback.callback(status: Firebird.IStatus; text: PAnsiChar);
139	tony	315	var StatusObj: TFB30StatusObject;
140	tony	266	begin
141	tony	315	if ((status.getState and status.STATE_ERRORS) <> 0) then
142			begin
143			StatusObj := TFB30StatusObject.Create(FFirebirdClientAPI,status);
144			try
145			raise EIBInterBaseError.Create(StatusObj);
146			finally
147			StatusObj.Free;
148			end;
149			end;
150	tony	266	FOutput.Add(text);
151			end;
152
153
154	tony	45	{ TFB30Attachment }
155
156	tony	315	procedure TFB30Attachment.SetUseRemoteICU(aValue: boolean);
157			begin
158			if (FUsingRemoteICU <> aValue) and (GetODSMajorVersion >= 13) then
159			begin
160			if aValue then
161			ExecImmediate([isc_tpb_write,isc_tpb_wait,isc_tpb_concurrency],'SET BIND OF TIME ZONE TO EXTENDED')
162			else
163			ExecImmediate([isc_tpb_write,isc_tpb_wait,isc_tpb_concurrency],'SET BIND OF TIME ZONE TO NATIVE');
164			FUsingRemoteICU := aValue;
165			end;
166			end;
167
168	tony	45	procedure TFB30Attachment.CheckHandle;
169			begin
170			if FAttachmentIntf = nil then
171			IBError(ibxeDatabaseClosed,[nil]);
172			end;
173
174	tony	263	constructor TFB30Attachment.Create(api: TFB30ClientAPI; DatabaseName: AnsiString; aDPB: IDPB;
175	tony	45	RaiseExceptionOnConnectError: boolean);
176			begin
177	tony	263	FFirebird30ClientAPI := api;
178	tony	45	if aDPB = nil then
179			begin
180			if RaiseExceptionOnConnectError then
181			IBError(ibxeNoDPB,[nil]);
182			Exit;
183			end;
184	tony	263	inherited Create(api,DatabaseName,aDPB,RaiseExceptionOnConnectError);
185	tony	45	Connect;
186			end;
187
188	tony	263	constructor TFB30Attachment.CreateDatabase(api: TFB30ClientAPI; DatabaseName: AnsiString; aDPB: IDPB;
189	tony	45	RaiseExceptionOnError: boolean);
190			var Param: IDPBItem;
191	tony	56	sql: AnsiString;
192	tony	45	IsCreateDB: boolean;
193			begin
194	tony	263	inherited Create(api,DatabaseName,aDPB,RaiseExceptionOnError);
195			FFirebird30ClientAPI := api;
196	tony	45	IsCreateDB := true;
197			if aDPB <> nil then
198			begin
199			Param := aDPB.Find(isc_dpb_set_db_SQL_dialect);
200			if Param <> nil then
201			FSQLDialect := Param.AsByte;
202			end;
203			sql := GenerateCreateDatabaseSQL(DatabaseName,aDPB);
204	tony	263	with FFirebird30ClientAPI do
205	tony	45	begin
206			FAttachmentIntf := UtilIntf.executeCreateDatabase(StatusIntf,Length(sql),
207			PAnsiChar(sql),FSQLDialect,@IsCreateDB);
208			if FRaiseExceptionOnConnectError then Check4DataBaseError;
209			if InErrorState then
210			FAttachmentIntf := nil
211			else
212			if aDPB <> nil then
213			{Connect using known parameters}
214			begin
215			Disconnect;
216			Connect;
217	tony	117	end
218			else
219			GetODSAndConnectionInfo;
220	tony	45	end;
221			end;
222
223	tony	263	constructor TFB30Attachment.CreateDatabase(api: TFB30ClientAPI; sql: AnsiString; aSQLDialect: integer;
224	tony	47	RaiseExceptionOnError: boolean);
225			var IsCreateDB: boolean;
226			begin
227	tony	263	inherited Create(api,'',nil,RaiseExceptionOnError);
228			FFirebird30ClientAPI := api;
229	tony	47	FSQLDialect := aSQLDialect;
230	tony	263	with FFirebird30ClientAPI do
231	tony	47	begin
232			FAttachmentIntf := UtilIntf.executeCreateDatabase(StatusIntf,Length(sql),
233			PAnsiChar(sql),aSQLDialect,@IsCreateDB);
234			if FRaiseExceptionOnConnectError then Check4DataBaseError;
235			if InErrorState then
236			FAttachmentIntf := nil;
237			end;
238	tony	117	GetODSAndConnectionInfo;
239			ExtractConnectString(sql,FDatabaseName);
240			DPBFromCreateSQL(sql);
241	tony	47	end;
242
243	tony	45	destructor TFB30Attachment.Destroy;
244			begin
245			inherited Destroy;
246			if assigned(FAttachmentIntf) then
247			FAttachmentIntf.release;
248			end;
249
250	tony	143	function TFB30Attachment.GetDBInfo(ReqBuffer: PByte; ReqBufLen: integer): IDBInformation;
251			begin
252	tony	263	Result := TDBInformation.Create(Firebird30ClientAPI);
253			with FFirebird30ClientAPI, Result as TDBInformation do
254	tony	143	begin
255			FAttachmentIntf.getInfo(StatusIntf, ReqBufLen, BytePtr(ReqBuffer),
256			getBufSize, BytePtr(Buffer));
257			Check4DataBaseError;
258			end
259			end;
260
261	tony	45	procedure TFB30Attachment.Connect;
262			begin
263	tony	263	with FFirebird30ClientAPI do
264	tony	45	begin
265			FAttachmentIntf := ProviderIntf.attachDatabase(StatusIntf,PAnsiChar(FDatabaseName),
266			(DPB as TDPB).getDataLength,
267			BytePtr((DPB as TDPB).getBuffer));
268			if FRaiseExceptionOnConnectError then Check4DataBaseError;
269			if InErrorState then
270			FAttachmentIntf := nil
271			else
272	tony	117	GetODSAndConnectionInfo;
273	tony	315
274	tony	45	end;
275			end;
276
277			procedure TFB30Attachment.Disconnect(Force: boolean);
278			begin
279			if IsConnected then
280	tony	263	with FFirebird30ClientAPI do
281	tony	45	begin
282			EndAllTransactions;
283			FAttachmentIntf.Detach(StatusIntf);
284			if not Force and InErrorState then
285			IBDataBaseError;
286			FAttachmentIntf := nil;
287			FHasDefaultCharSet := false;
288			FCodePage := CP_NONE;
289			FCharSetID := 0;
290	tony	315	FTimeZoneServices := nil;
291	tony	45	end;
292			end;
293
294			function TFB30Attachment.IsConnected: boolean;
295			begin
296			Result := FAttachmentIntf <> nil;
297			end;
298
299			procedure TFB30Attachment.DropDatabase;
300			begin
301			if IsConnected then
302	tony	263	with FFirebird30ClientAPI do
303	tony	45	begin
304			EndAllTransactions;
305			FAttachmentIntf.dropDatabase(StatusIntf);
306			Check4DataBaseError;
307			FAttachmentIntf := nil;
308			end;
309			end;
310
311			function TFB30Attachment.StartTransaction(TPB: array of byte;
312			DefaultCompletion: TTransactionCompletion): ITransaction;
313			begin
314			CheckHandle;
315	tony	263	Result := TFB30Transaction.Create(FFirebird30ClientAPI,self,TPB,DefaultCompletion);
316	tony	45	end;
317
318			function TFB30Attachment.StartTransaction(TPB: ITPB;
319			DefaultCompletion: TTransactionCompletion): ITransaction;
320			begin
321			CheckHandle;
322	tony	263	Result := TFB30Transaction.Create(FFirebird30ClientAPI,self,TPB,DefaultCompletion);
323	tony	45	end;
324
325	tony	56	procedure TFB30Attachment.ExecImmediate(transaction: ITransaction; sql: AnsiString;
326	tony	45	aSQLDialect: integer);
327			begin
328			CheckHandle;
329	tony	263	with FFirebird30ClientAPI do
330	tony	45	begin
331			FAttachmentIntf.execute(StatusIntf,(transaction as TFB30Transaction).TransactionIntf,
332	tony	56	Length(sql),PAnsiChar(sql),aSQLDialect,nil,nil,nil,nil);
333	tony	45	Check4DataBaseError;
334			end;
335			end;
336
337	tony	56	function TFB30Attachment.Prepare(transaction: ITransaction; sql: AnsiString;
338	tony	45	aSQLDialect: integer): IStatement;
339			begin
340			CheckHandle;
341			Result := TFB30Statement.Create(self,transaction,sql,aSQLDialect);
342			end;
343
344			function TFB30Attachment.PrepareWithNamedParameters(transaction: ITransaction;
345	tony	270	sql: AnsiString; aSQLDialect: integer; GenerateParamNames: boolean;
346			CaseSensitiveParams: boolean): IStatement;
347	tony	45	begin
348			CheckHandle;
349			Result := TFB30Statement.CreateWithParameterNames(self,transaction,sql,aSQLDialect,
350	tony	270	GenerateParamNames,CaseSensitiveParams);
351	tony	45	end;
352
353			function TFB30Attachment.GetEventHandler(Events: TStrings): IEvents;
354			begin
355			CheckHandle;
356			Result := TFB30Events.Create(self,Events);
357			end;
358
359			function TFB30Attachment.CreateBlob(transaction: ITransaction;
360			BlobMetaData: IBlobMetaData; BPB: IBPB): IBlob;
361			begin
362			CheckHandle;
363			Result := TFB30Blob.Create(self,transaction as TFB30Transaction, BlobMetaData,BPB);
364			end;
365
366			function TFB30Attachment.CreateBlob(transaction: ITransaction;
367			SubType: integer; aCharSetID: cardinal; BPB: IBPB): IBlob;
368			begin
369			CheckHandle;
370			Result := TFB30Blob.Create(self,transaction as TFB30Transaction, SubType,aCharSetID,BPB);
371			end;
372
373			function TFB30Attachment.OpenBlob(transaction: ITransaction;
374			BlobMetaData: IBlobMetaData; BlobID: TISC_QUAD; BPB: IBPB): IBlob;
375			begin
376			CheckHandle;
377			Result := TFB30Blob.Create(self,transaction as TFB30transaction,BlobMetaData,BlobID,BPB);
378			end;
379
380	tony	291	function TFB30Attachment.OpenArray(transaction: ITransaction;
381			ArrayMetaData: IArrayMetaData; ArrayID: TISC_QUAD): IArray;
382	tony	45	begin
383			CheckHandle;
384			Result := TFB30Array.Create(self,transaction as TFB30Transaction,
385	tony	291	ArrayMetaData,ArrayID);
386	tony	45	end;
387
388			function TFB30Attachment.CreateArray(transaction: ITransaction;
389			ArrayMetaData: IArrayMetaData): IArray;
390			begin
391			CheckHandle;
392			Result := TFB30Array.Create(self,transaction as TFB30Transaction,ArrayMetaData);
393			end;
394
395	tony	56	function TFB30Attachment.CreateArrayMetaData(SQLType: cardinal; tableName: AnsiString; columnName: AnsiString;
396	tony	47	Scale: integer; size: cardinal; aCharSetID: cardinal; dimensions: cardinal;
397			bounds: TArrayBounds): IArrayMetaData;
398			begin
399	tony	60	Result := TFB30ArrayMetaData.Create(self,SQLType,tableName,ColumnName,Scale,size,aCharSetID, dimensions,bounds);
400	tony	47	end;
401
402	tony	45	function TFB30Attachment.GetBlobMetaData(Transaction: ITransaction; tableName,
403	tony	56	columnName: AnsiString): IBlobMetaData;
404	tony	45	begin
405			CheckHandle;
406			Result := TFB30BlobMetaData.Create(self,Transaction as TFB30Transaction,tableName,columnName);
407			end;
408
409			function TFB30Attachment.GetArrayMetaData(Transaction: ITransaction; tableName,
410	tony	56	columnName: AnsiString): IArrayMetaData;
411	tony	45	begin
412			CheckHandle;
413			Result := TFB30ArrayMetaData.Create(self,Transaction as TFB30Transaction,tableName,columnName);
414			end;
415
416	tony	266	procedure TFB30Attachment.getFBVersion(version: TStrings);
417			var bufferObj: TVersionCallback;
418			begin
419	tony	267	version.Clear;
420	tony	315	bufferObj := TVersionCallback.Create(Firebird30ClientAPI,version);
421	tony	266	try
422			with FFirebird30ClientAPI do
423	tony	267	begin
424	tony	266	UtilIntf.getFbVersion(StatusIntf,FAttachmentIntf,bufferObj);
425	tony	267	Check4DataBaseError;
426			end;
427	tony	266	finally
428			bufferObj.Free;
429			end;
430			end;
431
432	tony	315	function TFB30Attachment.HasDecFloatSupport: boolean;
433			begin
434			Result := (FFirebird30ClientAPI.GetClientMajor >= 4) and
435			(GetODSMajorVersion >= 13);
436			end;
437
438	tony	345	function TFB30Attachment.HasBatchMode: boolean;
439			begin
440			Result := FFirebird30ClientAPI.Firebird4orLater and
441			(GetODSMajorVersion >= 13);
442			end;
443
444	tony	315	function TFB30Attachment.GetTimeZoneServices: ITimeZoneServices;
445			begin
446			if not HasTimeZoneSupport then
447			IBError(ibxeNotSupported,[]);
448
449			if FTimeZoneServices = nil then
450			FTimeZoneServices := TFB30TimeZoneServices.Create(self);
451			Result := FTimeZoneServices;
452			end;
453
454			function TFB30Attachment.HasTimeZoneSupport: boolean;
455			begin
456			Result := (FFirebird30ClientAPI.GetClientMajor >= 4) and
457			(GetODSMajorVersion >= 13);
458			end;
459
460	tony	45	end.
461