1 |
tony |
45 |
(*
|
2 |
|
|
* Firebird Interface (fbintf). The fbintf components provide a set of
|
3 |
|
|
* Pascal language bindings for the Firebird API. Although predominantly
|
4 |
|
|
* a new development they include source code taken from IBX and may be
|
5 |
|
|
* considered a derived product. This software thus also includes the copyright
|
6 |
|
|
* notice and license conditions from IBX.
|
7 |
|
|
*
|
8 |
|
|
* Except for those parts dervied from IBX, contents of this file are subject
|
9 |
|
|
* to the Initial Developer's Public License Version 1.0 (the "License"); you
|
10 |
|
|
* may not use this file except in compliance with the License. You may obtain a
|
11 |
|
|
* copy of the License here:
|
12 |
|
|
*
|
13 |
|
|
* http://www.firebirdsql.org/index.php?op=doc&id=idpl
|
14 |
|
|
*
|
15 |
|
|
* Software distributed under the License is distributed on an "AS
|
16 |
|
|
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
17 |
|
|
* implied. See the License for the specific language governing rights
|
18 |
|
|
* and limitations under the License.
|
19 |
|
|
*
|
20 |
|
|
* The Initial Developer of the Original Code is Tony Whyman.
|
21 |
|
|
*
|
22 |
|
|
* The Original Code is (C) 2016 Tony Whyman, MWA Software
|
23 |
|
|
* (http://www.mwasoftware.co.uk).
|
24 |
|
|
*
|
25 |
|
|
* All Rights Reserved.
|
26 |
|
|
*
|
27 |
|
|
* Contributor(s): ______________________________________.
|
28 |
|
|
*
|
29 |
|
|
*)
|
30 |
|
|
{************************************************************************}
|
31 |
|
|
{ }
|
32 |
|
|
{ Borland Delphi Visual Component Library }
|
33 |
|
|
{ InterBase Express core components }
|
34 |
|
|
{ }
|
35 |
|
|
{ Copyright (c) 1998-2000 Inprise Corporation }
|
36 |
|
|
{ }
|
37 |
|
|
{ InterBase Express is based in part on the product }
|
38 |
|
|
{ Free IB Components, written by Gregory H. Deatz for }
|
39 |
|
|
{ Hoagland, Longo, Moran, Dunst & Doukas Company. }
|
40 |
|
|
{ Free IB Components is used under license. }
|
41 |
|
|
{ }
|
42 |
|
|
{ The contents of this file are subject to the InterBase }
|
43 |
|
|
{ Public License Version 1.0 (the "License"); you may not }
|
44 |
|
|
{ use this file except in compliance with the License. You }
|
45 |
|
|
{ may obtain a copy of the License at http://www.Inprise.com/IPL.html }
|
46 |
|
|
{ Software distributed under the License is distributed on }
|
47 |
|
|
{ an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either }
|
48 |
|
|
{ express or implied. See the License for the specific language }
|
49 |
|
|
{ governing rights and limitations under the License. }
|
50 |
|
|
{ The Original Code was created by InterBase Software Corporation }
|
51 |
|
|
{ and its successors. }
|
52 |
|
|
{ Portions created by Inprise Corporation are Copyright (C) Inprise }
|
53 |
|
|
{ Corporation. All Rights Reserved. }
|
54 |
|
|
{ Contributor(s): Jeff Overcash }
|
55 |
|
|
{ }
|
56 |
|
|
{ IBX For Lazarus (Firebird Express) }
|
57 |
|
|
{ Contributor: Tony Whyman, MWA Software http://www.mwasoftware.co.uk }
|
58 |
|
|
{ Portions created by MWA Software are copyright McCallum Whyman }
|
59 |
|
|
{ Associates Ltd 2011 - 2015 }
|
60 |
|
|
{ }
|
61 |
|
|
{************************************************************************}
|
62 |
|
|
unit IB;
|
63 |
tony |
56 |
{$IFDEF MSWINDOWS}
|
64 |
|
|
{$DEFINE WINDOWS}
|
65 |
|
|
{$ENDIF}
|
66 |
tony |
45 |
|
67 |
|
|
{$IFDEF FPC}
|
68 |
tony |
56 |
{$mode delphi}
|
69 |
tony |
45 |
{$codepage UTF8}
|
70 |
|
|
{$interfaces COM}
|
71 |
tony |
56 |
{$IF defined(FPC) and (FPC_FULLVERSION < 30000) }
|
72 |
tony |
45 |
{$ERROR FPC Version 3.0.0 or later is required}
|
73 |
tony |
56 |
{$IFEND}
|
74 |
tony |
45 |
{$ENDIF}
|
75 |
|
|
|
76 |
|
|
{$DEFINE USEFIREBIRD3API}
|
77 |
|
|
{$DEFINE USELEGACYFIREBIRDAPI}
|
78 |
|
|
|
79 |
|
|
{
|
80 |
|
|
This unit defines the interfaces used to provide the Pascal Language
|
81 |
|
|
bindings for the Firebird API. These are COM style references counted interfaces
|
82 |
|
|
and are automatically freed when they go out of scope.
|
83 |
|
|
|
84 |
|
|
The interface definition is independent of the Firebird API version and two
|
85 |
|
|
implementations are provided. One is for the legacy API (2.5 and earlier) and the
|
86 |
|
|
other is for the new object orientated API (3.0 and later). By default, both are
|
87 |
|
|
available with the 3.0 API used if it is available. Otherwise the 2.5 API is used.
|
88 |
|
|
The above two defines can be used to force only one implementation by undefining
|
89 |
|
|
the symbol for the unwanted API.
|
90 |
|
|
|
91 |
|
|
Note that the FirebirdAPI function defined below is used for initial access to
|
92 |
|
|
the language bindings.
|
93 |
|
|
|
94 |
|
|
The goals of these Pascal Langauge bindings are to provide:
|
95 |
|
|
|
96 |
|
|
1. A set of reference counted interfaces providing complete access to the Firebird API.
|
97 |
|
|
|
98 |
|
|
2. Application Independence from the Firebird API version.
|
99 |
|
|
|
100 |
|
|
3. All data access through strongly typed variables and functions with no need for
|
101 |
|
|
the end user to manipulate untyped data in buffers such as the legacy API SQLDA
|
102 |
|
|
or the Firebird 3.0 message buffer.
|
103 |
|
|
|
104 |
|
|
4. A stable platform for LCL Packages (e.g. IBX) that implement the TDataSet model
|
105 |
|
|
with independence from the Firebird API version.
|
106 |
|
|
|
107 |
|
|
5. Straightforward progammatic access to the Firebird API from Pascal programs.
|
108 |
|
|
|
109 |
tony |
56 |
6. FPC and Delphi Support.
|
110 |
|
|
|
111 |
tony |
45 |
String Types
|
112 |
|
|
============
|
113 |
|
|
|
114 |
|
|
From FPC 3.0 onwards, ANSISTRINGs include the codepage in their definition. All
|
115 |
|
|
strings used by the interface are sensitive to the codepage in that the codepage
|
116 |
|
|
for all strings returned by an interface is consistent with the SQL Character set
|
117 |
|
|
used for the database connection. Input strings will be transliterated, where possible
|
118 |
|
|
and if necessary, to the codepage consistent with the character set used for
|
119 |
|
|
the database connection.
|
120 |
|
|
}
|
121 |
|
|
|
122 |
|
|
interface
|
123 |
|
|
|
124 |
|
|
uses
|
125 |
|
|
Classes, SysUtils, DB, FBMessages, IBExternals;
|
126 |
|
|
|
127 |
tony |
47 |
const
|
128 |
|
|
{Interface version information}
|
129 |
|
|
FBIntf_Major = 1;
|
130 |
|
|
FBIntf_Minor = 0;
|
131 |
tony |
56 |
FBIntf_Release = 2;
|
132 |
|
|
FBIntf_Version = '1.0.2';
|
133 |
tony |
47 |
|
134 |
tony |
45 |
{These include files are converted from the 'C' originals in the Firebird API
|
135 |
|
|
and define the various constants used by the API}
|
136 |
|
|
|
137 |
tony |
56 |
{$I 'include/consts_pub.inc'}
|
138 |
|
|
{$I 'include/inf_pub.inc'}
|
139 |
|
|
{$I 'include/configkeys.inc'}
|
140 |
tony |
45 |
|
141 |
|
|
{The following constants define the values return by calls to the GetSQLType
|
142 |
|
|
methods provided by several of the interfaces defined below.}
|
143 |
|
|
|
144 |
|
|
(*********************)
|
145 |
|
|
(** SQL definitions **)
|
146 |
|
|
(*********************)
|
147 |
|
|
SQL_VARYING = 448;
|
148 |
|
|
SQL_TEXT = 452;
|
149 |
|
|
SQL_DOUBLE = 480;
|
150 |
|
|
SQL_FLOAT = 482;
|
151 |
|
|
SQL_LONG = 496;
|
152 |
|
|
SQL_SHORT = 500;
|
153 |
|
|
SQL_TIMESTAMP = 510;
|
154 |
|
|
SQL_BLOB = 520;
|
155 |
|
|
SQL_D_FLOAT = 530;
|
156 |
|
|
SQL_ARRAY = 540;
|
157 |
|
|
SQL_QUAD = 550;
|
158 |
|
|
SQL_TYPE_TIME = 560;
|
159 |
|
|
SQL_TYPE_DATE = 570;
|
160 |
|
|
SQL_INT64 = 580;
|
161 |
|
|
SQL_BOOLEAN = 32764;
|
162 |
|
|
SQL_DATE = SQL_TIMESTAMP;
|
163 |
|
|
|
164 |
|
|
type
|
165 |
|
|
TGDS_QUAD = record
|
166 |
|
|
gds_quad_high : ISC_LONG;
|
167 |
|
|
gds_quad_low : UISC_LONG;
|
168 |
|
|
end;
|
169 |
|
|
TGDS__QUAD = TGDS_QUAD;
|
170 |
|
|
TISC_QUAD = TGDS_QUAD;
|
171 |
|
|
PGDS_QUAD = ^TGDS_QUAD;
|
172 |
|
|
PGDS__QUAD = ^TGDS__QUAD;
|
173 |
|
|
PISC_QUAD = ^TISC_QUAD;
|
174 |
|
|
|
175 |
tony |
56 |
{$IFNDEF FPC}
|
176 |
|
|
{Delphi only seems to define CP_UTF8 and CP_UTF16}
|
177 |
|
|
const
|
178 |
|
|
CP_ACP = 0; // default to ANSI code page
|
179 |
|
|
CP_OEMCP = 1; // default to OEM (console) code page
|
180 |
|
|
CP_UTF16BE = 1201; // unicodeFFFE
|
181 |
|
|
CP_UTF7 = 65000; // utf-7
|
182 |
|
|
CP_ASCII = 20127; // us-ascii
|
183 |
|
|
CP_NONE = $FFFF; // rawbytestring encoding
|
184 |
|
|
|
185 |
|
|
{$ENDIF}
|
186 |
|
|
|
187 |
|
|
type
|
188 |
|
|
{$IF not declared(TSystemCodePage)}
|
189 |
|
|
TSystemCodePage = word; {not defined in Delphi}
|
190 |
|
|
{$IFEND}
|
191 |
|
|
|
192 |
tony |
45 |
TIBSQLStatementTypes =
|
193 |
|
|
(SQLUnknown, SQLSelect, SQLInsert,
|
194 |
|
|
SQLUpdate, SQLDelete, SQLDDL,
|
195 |
|
|
SQLGetSegment, SQLPutSegment,
|
196 |
|
|
SQLExecProcedure, SQLStartTransaction,
|
197 |
|
|
SQLCommit, SQLRollback,
|
198 |
|
|
SQLSelectForUpdate, SQLSetGenerator);
|
199 |
|
|
|
200 |
|
|
TFBStatusCode = cardinal;
|
201 |
|
|
TByteArray = array of byte;
|
202 |
|
|
|
203 |
|
|
IAttachment = interface;
|
204 |
|
|
ITransaction = interface;
|
205 |
|
|
|
206 |
tony |
56 |
{The IParameterBlock interface provides the template for all parameter
|
207 |
tony |
45 |
block interfaces}
|
208 |
|
|
|
209 |
tony |
56 |
IParameterBlock<_IItem> = interface
|
210 |
tony |
45 |
function getCount: integer;
|
211 |
|
|
function Add(ParamType: byte): _IItem;
|
212 |
|
|
function getItems(index: integer): _IItem;
|
213 |
|
|
function Find(ParamType: byte): _IItem;
|
214 |
|
|
procedure PrintBuf; {can be used to print buffer in hex for debugging}
|
215 |
|
|
property Count: integer read getCount;
|
216 |
|
|
property Items[index: integer]: _IItem read getItems; default;
|
217 |
|
|
end;
|
218 |
|
|
|
219 |
|
|
{IParameterBlockItem is not used on its own but instead provides a base type for
|
220 |
|
|
different parameter block items }
|
221 |
|
|
|
222 |
|
|
IParameterBlockItem = interface
|
223 |
tony |
56 |
['{53b23f7b-abda-46a5-9aa5-07bd5e723266}']
|
224 |
tony |
45 |
function getParamType: byte;
|
225 |
|
|
function getAsInteger: integer;
|
226 |
tony |
56 |
function getAsString: AnsiString;
|
227 |
tony |
45 |
function getAsByte: byte;
|
228 |
tony |
56 |
procedure setAsString(aValue: AnsiString);
|
229 |
tony |
45 |
procedure setAsByte(aValue: byte);
|
230 |
|
|
procedure SetAsInteger(aValue: integer);
|
231 |
tony |
56 |
property AsString: AnsiString read getAsString write setAsString;
|
232 |
tony |
45 |
property AsByte: byte read getAsByte write setAsByte;
|
233 |
|
|
property AsInteger: integer read getAsInteger write SetAsInteger;
|
234 |
|
|
end;
|
235 |
|
|
|
236 |
|
|
|
237 |
|
|
{The IStatus interface provides access to error information, if any, returned
|
238 |
|
|
by the last API call. It can also be used to customise the error message
|
239 |
|
|
returned by a database engine exception - see EIBInterbaseError.
|
240 |
|
|
|
241 |
|
|
This interface can be accessed from IFirebirdAPI.
|
242 |
|
|
}
|
243 |
|
|
|
244 |
|
|
IStatus = interface
|
245 |
tony |
56 |
['{34167722-af38-4831-b08a-93162d58ede3}']
|
246 |
tony |
45 |
function GetIBErrorCode: Long;
|
247 |
|
|
function Getsqlcode: Long;
|
248 |
tony |
56 |
function GetMessage: AnsiString;
|
249 |
tony |
45 |
function CheckStatusVector(ErrorCodes: array of TFBStatusCode): Boolean;
|
250 |
|
|
function GetIBDataBaseErrorMessages: TIBDataBaseErrorMessages;
|
251 |
|
|
procedure SetIBDataBaseErrorMessages(Value: TIBDataBaseErrorMessages);
|
252 |
|
|
end;
|
253 |
|
|
|
254 |
|
|
{ The array metadata interface provides access to the metadata used to describe
|
255 |
|
|
an array column in a Firebird table.
|
256 |
|
|
}
|
257 |
|
|
|
258 |
|
|
TArrayBound = record
|
259 |
|
|
UpperBound: short;
|
260 |
|
|
LowerBound: short;
|
261 |
|
|
end;
|
262 |
|
|
TArrayBounds = array of TArrayBound;
|
263 |
|
|
|
264 |
|
|
IArrayMetaData = interface
|
265 |
tony |
56 |
['{7dd0aea4-59af-4c2a-b958-565d5025c489}']
|
266 |
tony |
45 |
function GetSQLType: cardinal;
|
267 |
tony |
56 |
function GetSQLTypeName: AnsiString;
|
268 |
tony |
45 |
function GetScale: integer;
|
269 |
|
|
function GetSize: cardinal;
|
270 |
|
|
function GetCharSetID: cardinal;
|
271 |
tony |
56 |
function GetTableName: AnsiString;
|
272 |
|
|
function GetColumnName: AnsiString;
|
273 |
tony |
45 |
function GetDimensions: integer;
|
274 |
|
|
function GetBounds: TArrayBounds;
|
275 |
|
|
end;
|
276 |
|
|
|
277 |
|
|
{The array interface provides access to and modification of the array data
|
278 |
|
|
contained in an array field of a Firebird Table. The array element is
|
279 |
|
|
selected by specifying its co-ordinates using an integer array. The
|
280 |
|
|
getter and setter methods used should be appropriate for the type of data
|
281 |
|
|
contained in the array. Automatic conversion is provided to and from strings.
|
282 |
|
|
That is GetAsString and SetAsString are safe to use for sql types other than
|
283 |
|
|
boolean.
|
284 |
|
|
|
285 |
|
|
The interface is returned by a GetAsArray getter method (see ISQLData). A new array
|
286 |
|
|
can be obtained from the IAttachment interface. The SetAsArray setter method
|
287 |
|
|
(See ISQLParam) is used to apply an updated or new array to the database using
|
288 |
|
|
an UPDATE or INSERT statement.
|
289 |
|
|
|
290 |
|
|
}
|
291 |
|
|
|
292 |
|
|
TArrayEventReason = (arChanging,arChanged);
|
293 |
|
|
IArray = interface;
|
294 |
|
|
TArrayEventHandler = procedure(Sender: IArray; Reason: TArrayEventReason) of object;
|
295 |
|
|
|
296 |
|
|
IArray = interface(IArrayMetaData)
|
297 |
tony |
56 |
['{631c6bb1-fb49-44fb-a64a-c49859632b88}']
|
298 |
tony |
45 |
function GetArrayID: TISC_QUAD;
|
299 |
|
|
procedure Clear;
|
300 |
|
|
function IsEmpty: boolean;
|
301 |
|
|
procedure PreLoad;
|
302 |
|
|
procedure CancelChanges;
|
303 |
|
|
procedure SaveChanges;
|
304 |
|
|
function GetAsInteger(index: array of integer): integer;
|
305 |
|
|
function GetAsBoolean(index: array of integer): boolean;
|
306 |
|
|
function GetAsCurrency(index: array of integer): Currency;
|
307 |
|
|
function GetAsInt64(index: array of integer): Int64;
|
308 |
|
|
function GetAsDateTime(index: array of integer): TDateTime;
|
309 |
|
|
function GetAsDouble(index: array of integer): Double;
|
310 |
|
|
function GetAsFloat(index: array of integer): Float;
|
311 |
|
|
function GetAsLong(index: array of integer): Long;
|
312 |
|
|
function GetAsShort(index: array of integer): Short;
|
313 |
tony |
56 |
function GetAsString(index: array of integer): AnsiString;
|
314 |
tony |
45 |
function GetAsVariant(index: array of integer): Variant;
|
315 |
|
|
procedure SetAsInteger(index: array of integer; AValue: integer);
|
316 |
|
|
procedure SetAsBoolean(index: array of integer; AValue: boolean);
|
317 |
|
|
procedure SetAsCurrency(index: array of integer; Value: Currency);
|
318 |
|
|
procedure SetAsInt64(index: array of integer; Value: Int64);
|
319 |
|
|
procedure SetAsDate(index: array of integer; Value: TDateTime);
|
320 |
|
|
procedure SetAsLong(index: array of integer; Value: Long);
|
321 |
|
|
procedure SetAsTime(index: array of integer; Value: TDateTime);
|
322 |
|
|
procedure SetAsDateTime(index: array of integer; Value: TDateTime);
|
323 |
|
|
procedure SetAsDouble(index: array of integer; Value: Double);
|
324 |
|
|
procedure SetAsFloat(index: array of integer; Value: Float);
|
325 |
|
|
procedure SetAsShort(index: array of integer; Value: Short);
|
326 |
tony |
56 |
procedure SetAsString(index: array of integer; Value: AnsiString);
|
327 |
tony |
45 |
procedure SetAsVariant(index: array of integer; Value: Variant);
|
328 |
|
|
procedure SetBounds(dim, UpperBound, LowerBound: integer);
|
329 |
|
|
function GetAttachment: IAttachment;
|
330 |
|
|
function GetTransaction: ITransaction;
|
331 |
|
|
procedure AddEventHandler(Handler: TArrayEventHandler);
|
332 |
|
|
procedure RemoveEventHandler(Handler: TArrayEventHandler);
|
333 |
|
|
end;
|
334 |
|
|
|
335 |
|
|
{ The Blob metadata interface provides access to the metadata used to describe
|
336 |
|
|
a blob column in a Firebird table.
|
337 |
|
|
}
|
338 |
|
|
|
339 |
|
|
IBlobMetaData = interface
|
340 |
tony |
56 |
['{575f3c61-bb33-46a5-8975-bb7d1b6e37cc}']
|
341 |
tony |
45 |
function GetSubType: integer;
|
342 |
|
|
function GetCharSetID: cardinal;
|
343 |
|
|
function GetCodePage: TSystemCodePage;
|
344 |
|
|
function GetSegmentSize: cardinal;
|
345 |
tony |
56 |
function GetRelationName: AnsiString;
|
346 |
|
|
function GetColumnName: AnsiString;
|
347 |
tony |
45 |
end;
|
348 |
|
|
|
349 |
|
|
{The Blob Parameter block is used to select a Blob Filter}
|
350 |
|
|
|
351 |
tony |
56 |
IBPBItem = interface (IParameterBlockItem)
|
352 |
|
|
['{660822a5-3114-4c16-b6cb-c1a7b2aba70d}']
|
353 |
|
|
end;
|
354 |
tony |
45 |
|
355 |
tony |
87 |
IBPB = interface (IParameterBlock<IBPBItem>)
|
356 |
tony |
56 |
['{e0cb9eb5-17f7-4416-b7d1-3cddd1dfca76}']
|
357 |
|
|
end;
|
358 |
tony |
45 |
|
359 |
|
|
{ The Blob Interface provides access to a blob data item.
|
360 |
|
|
|
361 |
|
|
The interface is returned by a GetAsBlob getter method (see ISQLData). A new Blob
|
362 |
|
|
can be obtained from the IAttachment interface. The SetAsBlob setter method
|
363 |
|
|
(See ISQLParam) is used to apply an updated or new array to the database using
|
364 |
|
|
an UPDATE or INSERT statement.
|
365 |
|
|
}
|
366 |
|
|
|
367 |
|
|
TFBBlobMode = (fbmRead,fbmWrite);
|
368 |
|
|
TBlobType = (btSegmented,btStream);
|
369 |
|
|
|
370 |
|
|
IBlob = interface(IBlobMetaData)
|
371 |
tony |
56 |
['{3090a145-7780-442b-b15b-efd4568b8611}']
|
372 |
tony |
45 |
function GetBPB: IBPB;
|
373 |
|
|
procedure Cancel;
|
374 |
|
|
procedure Close;
|
375 |
|
|
function GetBlobID: TISC_QUAD;
|
376 |
|
|
function GetBlobMode: TFBBlobMode;
|
377 |
|
|
function GetBlobSize: Int64;
|
378 |
|
|
procedure GetInfo(var NumSegments: Int64; var MaxSegmentSize,
|
379 |
|
|
TotalSize: Int64; var BlobType: TBlobType);
|
380 |
|
|
function Read(var Buffer; Count: Longint): Longint;
|
381 |
|
|
function Write(const Buffer; Count: Longint): Longint;
|
382 |
tony |
56 |
function LoadFromFile(Filename: AnsiString): IBlob;
|
383 |
tony |
45 |
function LoadFromStream(S: TStream) : IBlob;
|
384 |
tony |
56 |
function SaveToFile(Filename: AnsiString): IBlob;
|
385 |
tony |
45 |
function SaveToStream(S: TStream): IBlob;
|
386 |
|
|
function GetAsString: rawbytestring;
|
387 |
|
|
procedure SetAsString(aValue: rawbytestring);
|
388 |
|
|
function SetString(aValue: rawbytestring): IBlob;
|
389 |
|
|
function GetAttachment: IAttachment;
|
390 |
|
|
function GetTransaction: ITransaction;
|
391 |
|
|
property AsString: rawbytestring read GetAsString write SetAsString;
|
392 |
|
|
end;
|
393 |
|
|
|
394 |
|
|
{ The IColumnMetaData interface provides access to the per column metadata for
|
395 |
|
|
the output of an SQL Statement.
|
396 |
|
|
}
|
397 |
|
|
|
398 |
|
|
{ IColumnMetaData }
|
399 |
|
|
|
400 |
|
|
IColumnMetaData = interface
|
401 |
tony |
56 |
['{c222e6c3-53c1-469f-9e05-0a5c3ef232d8}']
|
402 |
tony |
45 |
function GetIndex: integer;
|
403 |
|
|
function GetSQLType: cardinal;
|
404 |
tony |
56 |
function GetSQLTypeName: AnsiString;
|
405 |
tony |
45 |
function getSubtype: integer;
|
406 |
tony |
56 |
function getRelationName: AnsiString;
|
407 |
|
|
function getOwnerName: AnsiString;
|
408 |
|
|
function getSQLName: AnsiString; {Name of the column}
|
409 |
|
|
function getAliasName: AnsiString; {Alias Name of column or Column Name if no alias}
|
410 |
|
|
function getName: AnsiString; {Disambiguated uppercase Field Name}
|
411 |
tony |
45 |
function getScale: integer;
|
412 |
|
|
function getCharSetID: cardinal;
|
413 |
|
|
function getCodePage: TSystemCodePage;
|
414 |
|
|
function getIsNullable: boolean;
|
415 |
|
|
function GetSize: cardinal;
|
416 |
|
|
function GetArrayMetaData: IArrayMetaData; {Valid only for Array SQL Type}
|
417 |
|
|
function GetBlobMetaData: IBlobMetaData; {Valid only for Blob SQL Type}
|
418 |
tony |
56 |
property Name: AnsiString read GetName;
|
419 |
tony |
45 |
property Size: cardinal read GetSize;
|
420 |
|
|
property SQLType: cardinal read GetSQLType;
|
421 |
|
|
property Scale: integer read getScale;
|
422 |
|
|
property SQLSubtype: integer read getSubtype;
|
423 |
|
|
property IsNullable: Boolean read GetIsNullable;
|
424 |
|
|
end;
|
425 |
|
|
|
426 |
|
|
{
|
427 |
|
|
The IMetaData interface provides access to the set of column metadata
|
428 |
|
|
for the output of an SQL Statement
|
429 |
|
|
}
|
430 |
|
|
|
431 |
|
|
{ IMetaData }
|
432 |
|
|
|
433 |
|
|
IMetaData = interface
|
434 |
tony |
56 |
['{4dafdbb6-0d36-4f1f-9c95-8b132804b965}']
|
435 |
tony |
45 |
function getCount: integer;
|
436 |
|
|
function getColumnMetaData(index: integer): IColumnMetaData;
|
437 |
tony |
56 |
function GetUniqueRelationName: AnsiString; {Non empty if all columns come from the same table}
|
438 |
|
|
function ByName(Idx: AnsiString): IColumnMetaData;
|
439 |
tony |
45 |
property ColMetaData[index: integer]: IColumnMetaData read getColumnMetaData; default;
|
440 |
|
|
property Count: integer read getCount;
|
441 |
|
|
end;
|
442 |
|
|
|
443 |
|
|
{
|
444 |
|
|
The ISQLData interface provides access to the data returned in a field in the
|
445 |
|
|
current row returned from a query or the result of an SQL Execute statement.
|
446 |
|
|
|
447 |
|
|
It subclasses IColumnMetaData and so also provides access to the metadata
|
448 |
|
|
associated with the column.
|
449 |
|
|
|
450 |
|
|
The getter and setter methods, and the corresponding properties, provide typed
|
451 |
|
|
access to the field data. The method/property used should be consistent
|
452 |
|
|
with the SQL Type. Automatic conversion is provided from strings.
|
453 |
|
|
That is GetAsString is safe to use for sql types other than boolean.
|
454 |
|
|
}
|
455 |
|
|
|
456 |
|
|
|
457 |
|
|
ISQLData = interface(IColumnMetaData)
|
458 |
tony |
56 |
['{3f493e31-7e3f-4606-a07c-b210b9e3619d}']
|
459 |
tony |
45 |
function GetAsBoolean: boolean;
|
460 |
|
|
function GetAsCurrency: Currency;
|
461 |
|
|
function GetAsInt64: Int64;
|
462 |
|
|
function GetAsDateTime: TDateTime;
|
463 |
|
|
function GetAsDouble: Double;
|
464 |
|
|
function GetAsFloat: Float;
|
465 |
|
|
function GetAsLong: Long;
|
466 |
|
|
function GetAsPointer: Pointer;
|
467 |
|
|
function GetAsQuad: TISC_QUAD;
|
468 |
|
|
function GetAsShort: short;
|
469 |
tony |
56 |
function GetAsString: AnsiString;
|
470 |
tony |
45 |
function GetIsNull: Boolean;
|
471 |
|
|
function GetAsVariant: Variant;
|
472 |
|
|
function GetAsBlob: IBlob; overload;
|
473 |
|
|
function GetAsBlob(BPB: IBPB): IBlob; overload;
|
474 |
|
|
function GetAsArray: IArray;
|
475 |
|
|
property AsDate: TDateTime read GetAsDateTime;
|
476 |
|
|
property AsBoolean:boolean read GetAsBoolean;
|
477 |
|
|
property AsTime: TDateTime read GetAsDateTime;
|
478 |
|
|
property AsDateTime: TDateTime read GetAsDateTime ;
|
479 |
|
|
property AsDouble: Double read GetAsDouble;
|
480 |
|
|
property AsFloat: Float read GetAsFloat;
|
481 |
|
|
property AsCurrency: Currency read GetAsCurrency;
|
482 |
|
|
property AsInt64: Int64 read GetAsInt64 ;
|
483 |
|
|
property AsInteger: Integer read GetAsLong;
|
484 |
|
|
property AsLong: Long read GetAsLong;
|
485 |
|
|
property AsPointer: Pointer read GetAsPointer;
|
486 |
|
|
property AsQuad: TISC_QUAD read GetAsQuad;
|
487 |
|
|
property AsShort: short read GetAsShort;
|
488 |
tony |
56 |
property AsString: AnsiString read GetAsString;
|
489 |
tony |
45 |
property AsVariant: Variant read GetAsVariant ;
|
490 |
|
|
property AsBlob: IBlob read GetAsBlob;
|
491 |
|
|
property AsArray: IArray read GetAsArray;
|
492 |
|
|
property IsNull: Boolean read GetIsNull;
|
493 |
|
|
property Value: Variant read GetAsVariant;
|
494 |
|
|
end;
|
495 |
|
|
|
496 |
|
|
{ An IResults interface is returned as the result of an SQL Execute statement
|
497 |
|
|
and provides access to the fields returned, if any. It is a collection of
|
498 |
|
|
ISQLData interfaces which are, in turn, used to access the data returned by
|
499 |
|
|
each field of the result set.
|
500 |
|
|
}
|
501 |
|
|
|
502 |
|
|
IResults = interface
|
503 |
tony |
56 |
['{e836b2bb-93d1-4bbf-a8eb-7ce535de3bb5}']
|
504 |
tony |
45 |
function getCount: integer;
|
505 |
|
|
function GetTransaction: ITransaction;
|
506 |
tony |
56 |
function ByName(Idx: AnsiString): ISQLData;
|
507 |
tony |
45 |
function getSQLData(index: integer): ISQLData;
|
508 |
tony |
56 |
procedure GetData(index: integer; var IsNull:boolean; var len: short; var data: PByte);
|
509 |
tony |
45 |
procedure SetRetainInterfaces(aValue: boolean);
|
510 |
|
|
property Data[index: integer]: ISQLData read getSQLData; default;
|
511 |
|
|
property Count: integer read getCount;
|
512 |
|
|
end;
|
513 |
|
|
|
514 |
|
|
{ An IResultSet interface is returned as the result of an SQL Open Cursor statement
|
515 |
|
|
(e.g. Select Statement) and provides access to the fields returned, if any
|
516 |
|
|
for the current row. It is a collection of ISQLData interfaces which are,
|
517 |
|
|
in turn, used to access the data returned by each field of the current row.
|
518 |
|
|
}
|
519 |
|
|
IResultSet = interface(IResults)
|
520 |
tony |
56 |
['{0ae4979b-7857-4e8c-8918-ec6f155b51a0}']
|
521 |
tony |
45 |
function FetchNext: boolean;
|
522 |
tony |
56 |
function GetCursorName: AnsiString;
|
523 |
tony |
45 |
function IsEof: boolean;
|
524 |
|
|
procedure Close;
|
525 |
|
|
end;
|
526 |
|
|
|
527 |
|
|
{The ISQLParam interface is used to provide access to each parameter in a
|
528 |
|
|
parametised SQL Statement. It subclasses IColumnMetaData and this part of
|
529 |
|
|
the interface may be used to access information on the expected SQL Type, etc.
|
530 |
|
|
|
531 |
|
|
It also subclasses ISQLData and this part of the interface may be used to access
|
532 |
|
|
current values for each parameter.
|
533 |
|
|
|
534 |
|
|
Otherwise, the interface comprises the Setter Methods and properties used to
|
535 |
|
|
set the value of each parameter.
|
536 |
|
|
|
537 |
|
|
Automatic conversion is provided to and from strings. That is GetAsString and
|
538 |
|
|
SetAsString are safe to use for sql types other than boolean - provided automatic
|
539 |
|
|
conversion is possible.
|
540 |
|
|
}
|
541 |
|
|
|
542 |
|
|
ISQLParam = interface
|
543 |
tony |
56 |
['{b22b4578-6d41-4807-a9a9-d2ec8d1d5a14}']
|
544 |
tony |
45 |
function GetIndex: integer;
|
545 |
|
|
function GetSQLType: cardinal;
|
546 |
tony |
56 |
function GetSQLTypeName: AnsiString;
|
547 |
tony |
45 |
function getSubtype: integer;
|
548 |
tony |
56 |
function getName: AnsiString;
|
549 |
tony |
45 |
function getScale: integer;
|
550 |
|
|
function getCharSetID: cardinal;
|
551 |
|
|
function getCodePage: TSystemCodePage;
|
552 |
|
|
function getIsNullable: boolean;
|
553 |
|
|
function GetSize: cardinal;
|
554 |
|
|
function GetAsBoolean: boolean;
|
555 |
|
|
function GetAsCurrency: Currency;
|
556 |
|
|
function GetAsInt64: Int64;
|
557 |
|
|
function GetAsDateTime: TDateTime;
|
558 |
|
|
function GetAsDouble: Double;
|
559 |
|
|
function GetAsFloat: Float;
|
560 |
|
|
function GetAsLong: Long;
|
561 |
|
|
function GetAsPointer: Pointer;
|
562 |
|
|
function GetAsQuad: TISC_QUAD;
|
563 |
|
|
function GetAsShort: short;
|
564 |
tony |
56 |
function GetAsString: AnsiString;
|
565 |
tony |
45 |
function GetIsNull: boolean;
|
566 |
|
|
function GetAsVariant: Variant;
|
567 |
|
|
function GetAsBlob: IBlob;
|
568 |
|
|
function GetAsArray: IArray;
|
569 |
|
|
procedure Clear;
|
570 |
|
|
function GetModified: boolean;
|
571 |
|
|
procedure SetAsBoolean(AValue: boolean);
|
572 |
|
|
procedure SetAsCurrency(aValue: Currency);
|
573 |
|
|
procedure SetAsInt64(aValue: Int64);
|
574 |
|
|
procedure SetAsDate(aValue: TDateTime);
|
575 |
|
|
procedure SetAsLong(aValue: Long);
|
576 |
|
|
procedure SetAsTime(aValue: TDateTime);
|
577 |
|
|
procedure SetAsDateTime(aValue: TDateTime);
|
578 |
|
|
procedure SetAsDouble(aValue: Double);
|
579 |
|
|
procedure SetAsFloat(aValue: Float);
|
580 |
|
|
procedure SetAsPointer(aValue: Pointer);
|
581 |
|
|
procedure SetAsShort(aValue: Short);
|
582 |
tony |
56 |
procedure SetAsString(aValue: AnsiString);
|
583 |
tony |
45 |
procedure SetAsVariant(aValue: Variant);
|
584 |
|
|
procedure SetIsNull(aValue: Boolean);
|
585 |
|
|
procedure SetAsBlob(aValue: IBlob);
|
586 |
|
|
procedure SetAsArray(anArray: IArray);
|
587 |
|
|
procedure SetAsQuad(aValue: TISC_QUAD);
|
588 |
|
|
procedure SetCharSetID(aValue: cardinal);
|
589 |
|
|
property AsDate: TDateTime read GetAsDateTime write SetAsDate;
|
590 |
|
|
property AsBoolean:boolean read GetAsBoolean write SetAsBoolean;
|
591 |
|
|
property AsTime: TDateTime read GetAsDateTime write SetAsTime;
|
592 |
|
|
property AsDateTime: TDateTime read GetAsDateTime write SetAsDateTime;
|
593 |
|
|
property AsDouble: Double read GetAsDouble write SetAsDouble;
|
594 |
|
|
property AsFloat: Float read GetAsFloat write SetAsFloat;
|
595 |
|
|
property AsCurrency: Currency read GetAsCurrency write SetAsCurrency;
|
596 |
|
|
property AsInt64: Int64 read GetAsInt64 write SetAsInt64;
|
597 |
|
|
property AsInteger: Integer read GetAsLong write SetAsLong;
|
598 |
|
|
property AsLong: Long read GetAsLong write SetAsLong;
|
599 |
|
|
property AsPointer: Pointer read GetAsPointer write SetAsPointer;
|
600 |
|
|
property AsShort: Short read GetAsShort write SetAsShort;
|
601 |
tony |
56 |
property AsString: AnsiString read GetAsString write SetAsString;
|
602 |
tony |
45 |
property AsVariant: Variant read GetAsVariant write SetAsVariant;
|
603 |
|
|
property AsBlob: IBlob read GetAsBlob write SetAsBlob;
|
604 |
|
|
property AsArray: IArray read GetAsArray write SetAsArray;
|
605 |
|
|
property AsQuad: TISC_QUAD read GetAsQuad write SetAsQuad;
|
606 |
|
|
property Value: Variant read GetAsVariant write SetAsVariant;
|
607 |
|
|
property IsNull: Boolean read GetIsNull write SetIsNull;
|
608 |
|
|
property IsNullable: Boolean read GetIsNullable;
|
609 |
|
|
property Modified: Boolean read getModified;
|
610 |
tony |
56 |
property Name: AnsiString read GetName;
|
611 |
tony |
45 |
property SQLType: cardinal read GetSQLType;
|
612 |
|
|
end;
|
613 |
|
|
|
614 |
|
|
{
|
615 |
|
|
The ISQLParams interface provides access to the collection of parameters used
|
616 |
|
|
for the input to an SQL Statement
|
617 |
|
|
}
|
618 |
|
|
|
619 |
|
|
ISQLParams = interface
|
620 |
tony |
56 |
['{c6d95ac7-b2b7-461b-b890-afef0acbb077}']
|
621 |
tony |
45 |
function getCount: integer;
|
622 |
|
|
function getSQLParam(index: integer): ISQLParam;
|
623 |
tony |
56 |
function ByName(Idx: AnsiString): ISQLParam ;
|
624 |
tony |
45 |
function GetModified: Boolean;
|
625 |
|
|
property Modified: Boolean read GetModified;
|
626 |
|
|
property Params[index: integer]: ISQLParam read getSQLParam; default;
|
627 |
|
|
property Count: integer read getCount;
|
628 |
|
|
end;
|
629 |
|
|
|
630 |
tony |
47 |
|
631 |
|
|
TPerfStats = (psCurrentMemory, psMaxMemory,
|
632 |
|
|
psRealTime, psUserTime, psBuffers,
|
633 |
|
|
psReads, psWrites, psFetches,psDeltaMemory);
|
634 |
|
|
|
635 |
tony |
56 |
TPerfCounters = array[TPerfStats] of comp;
|
636 |
tony |
47 |
|
637 |
tony |
45 |
{The IStatement interface provides access to an SQL Statement once it has been
|
638 |
|
|
initially prepared. The interface is returned from the IAttachment interface.
|
639 |
|
|
}
|
640 |
|
|
|
641 |
|
|
IStatement = interface
|
642 |
tony |
56 |
['{a260576d-a07d-4a66-b02d-1b72543fd7cf}']
|
643 |
tony |
45 |
function GetMetaData: IMetaData; {Output Metadata}
|
644 |
|
|
function GetSQLParams: ISQLParams;{Statement Parameters}
|
645 |
tony |
56 |
function GetPlan: AnsiString;
|
646 |
tony |
45 |
function GetRowsAffected(var SelectCount, InsertCount, UpdateCount, DeleteCount: integer): boolean;
|
647 |
|
|
function GetSQLStatementType: TIBSQLStatementTypes;
|
648 |
tony |
56 |
function GetSQLText: AnsiString;
|
649 |
tony |
45 |
function GetSQLDialect: integer;
|
650 |
|
|
function IsPrepared: boolean;
|
651 |
|
|
procedure Prepare(aTransaction: ITransaction=nil);
|
652 |
|
|
function Execute(aTransaction: ITransaction=nil): IResults;
|
653 |
|
|
function OpenCursor(aTransaction: ITransaction=nil): IResultSet;
|
654 |
|
|
function GetAttachment: IAttachment;
|
655 |
|
|
function GetTransaction: ITransaction;
|
656 |
|
|
procedure SetRetainInterfaces(aValue: boolean);
|
657 |
tony |
47 |
procedure EnableStatistics(aValue: boolean);
|
658 |
|
|
function GetPerfStatistics(var stats: TPerfCounters): boolean;
|
659 |
tony |
45 |
property MetaData: IMetaData read GetMetaData;
|
660 |
|
|
property SQLParams: ISQLParams read GetSQLParams;
|
661 |
|
|
property SQLStatementType: TIBSQLStatementTypes read GetSQLStatementType;
|
662 |
|
|
end;
|
663 |
|
|
|
664 |
|
|
{Transaction Parameter Block: (TPB)
|
665 |
|
|
|
666 |
|
|
The TPB provides the parameters used when starting a transaction. It is allocated
|
667 |
|
|
empty by the FirebirdAPI and the parameters are then added to it. Each individual
|
668 |
|
|
parameter may be accessed by the ITPBItem interface which can be used to set the
|
669 |
|
|
value, if any, of the parameter.
|
670 |
|
|
|
671 |
|
|
The TPB parameters, and the associated symbolic codes and parameter values may be
|
672 |
|
|
found in the Interbase 6.0 API Guide.
|
673 |
|
|
}
|
674 |
|
|
|
675 |
tony |
56 |
ITPBItem = interface(IParameterBlockItem)
|
676 |
|
|
['{544c1f2b-7c12-4a87-a4a5-face7ea72671}']
|
677 |
|
|
end;
|
678 |
tony |
45 |
|
679 |
tony |
56 |
ITPB = interface(IParameterBlock<ITPBItem>)
|
680 |
|
|
['{7369b0ff-defe-437b-81fe-19b211d42d25}']
|
681 |
|
|
end;
|
682 |
tony |
45 |
|
683 |
|
|
{The ITransactionAction interface provides access to a Transaction once it
|
684 |
|
|
has been initially started. After a Commit or Rollback, a transaction
|
685 |
|
|
may be restarted, optinally with a new TPB.
|
686 |
|
|
|
687 |
|
|
A multi-database transaction is started from the FirebirdAPI. A single database
|
688 |
|
|
transaction is started from the IAttachment interface.
|
689 |
|
|
}
|
690 |
|
|
|
691 |
|
|
TTransactionAction = (TARollback, TACommit, TACommitRetaining, TARollbackRetaining);
|
692 |
|
|
TTransactionCompletion = TARollback.. TACommit;
|
693 |
|
|
|
694 |
|
|
ITransaction = interface
|
695 |
tony |
56 |
['{30928d0e-a9d7-4c61-b7cf-14f4f38abe2a}']
|
696 |
tony |
45 |
function getTPB: ITPB;
|
697 |
|
|
procedure Start(DefaultCompletion: TTransactionCompletion=taCommit);
|
698 |
|
|
function GetInTransaction: boolean;
|
699 |
|
|
procedure PrepareForCommit; {Two phase commit - stage 1}
|
700 |
|
|
procedure Commit(Force: boolean=false);
|
701 |
|
|
procedure CommitRetaining;
|
702 |
|
|
function HasActivity: boolean;
|
703 |
|
|
procedure Rollback(Force: boolean=false);
|
704 |
|
|
procedure RollbackRetaining;
|
705 |
|
|
function GetAttachmentCount: integer;
|
706 |
|
|
function GetAttachment(index: integer): IAttachment;
|
707 |
|
|
property InTransaction: boolean read GetInTransaction;
|
708 |
|
|
end;
|
709 |
|
|
|
710 |
|
|
{ The IEvents Interface is used to handle events from a single database. The
|
711 |
|
|
interface is allocated from the IAttachment Interface.
|
712 |
|
|
|
713 |
|
|
Note that the EventHandler called when an event occurs following AsynWaitForEvent
|
714 |
|
|
is called in a different thread to the calling program and TThread.Synchronize
|
715 |
|
|
may be needed to pass the event back to the main thread.
|
716 |
|
|
|
717 |
|
|
Neither AsyncWaitForEvent nor WaitForEvent is intended to be thread safe
|
718 |
|
|
in a multi-threaded environment and should always be called from the main
|
719 |
|
|
thread.
|
720 |
|
|
}
|
721 |
|
|
|
722 |
|
|
TEventInfo = record
|
723 |
tony |
56 |
EventName: AnsiString;
|
724 |
tony |
45 |
Count: integer;
|
725 |
|
|
end;
|
726 |
|
|
|
727 |
|
|
TEventCounts = array of TEventInfo;
|
728 |
|
|
IEvents = interface;
|
729 |
|
|
TEventHandler = procedure(Sender: IEvents) of object;
|
730 |
|
|
|
731 |
|
|
{ IEvents }
|
732 |
|
|
|
733 |
|
|
IEvents = interface
|
734 |
tony |
56 |
['{6a0be233-ed08-4524-889c-2e45d0c20e5f}']
|
735 |
tony |
45 |
procedure GetEvents(EventNames: TStrings);
|
736 |
|
|
procedure SetEvents(EventNames: TStrings); overload;
|
737 |
tony |
56 |
procedure SetEvents(EventName: AnsiString); overload;
|
738 |
tony |
45 |
procedure Cancel;
|
739 |
|
|
function ExtractEventCounts: TEventCounts;
|
740 |
|
|
procedure WaitForEvent;
|
741 |
|
|
procedure AsyncWaitForEvent(EventHandler: TEventHandler);
|
742 |
|
|
function GetAttachment: IAttachment;
|
743 |
|
|
end;
|
744 |
|
|
|
745 |
|
|
{The IDBInformation Interface.
|
746 |
|
|
|
747 |
|
|
An IDBInformation interface is returned by the IAttachment GetDBInformation
|
748 |
|
|
method. The interface provides access to the information requested and
|
749 |
|
|
returned by the method.
|
750 |
|
|
|
751 |
|
|
IDBInformation itself gives access to a collection of IDBInfoItems. Each one
|
752 |
|
|
provides information requested, as indicated by the ItemType and the actual
|
753 |
|
|
value of the information. In some cases, the returned item is itself a
|
754 |
|
|
colletion of IDBInfoItems.
|
755 |
|
|
|
756 |
|
|
The IDBInformation items, and the associated symbolic codes and parameter values may be
|
757 |
|
|
found in the Interbase 6.0 API Guide.
|
758 |
|
|
}
|
759 |
|
|
|
760 |
|
|
TDBOperationCount = record
|
761 |
|
|
TableID: UShort;
|
762 |
|
|
Count: cardinal;
|
763 |
|
|
end;
|
764 |
|
|
|
765 |
|
|
TDBOperationCounts = array of TDBOperationCount;
|
766 |
|
|
|
767 |
|
|
IDBInfoItem = interface
|
768 |
tony |
56 |
['{eeb97b51-ec0f-473f-9f75-c1721f055fcb}']
|
769 |
tony |
45 |
function getItemType: byte;
|
770 |
|
|
function getSize: integer;
|
771 |
|
|
procedure getRawBytes(var Buffer);
|
772 |
tony |
56 |
function getAsString: AnsiString;
|
773 |
tony |
45 |
function getAsInteger: integer;
|
774 |
tony |
56 |
procedure DecodeIDCluster(var ConnectionType: integer; var DBFileName, DBSiteName: AnsiString);
|
775 |
tony |
45 |
function getAsBytes: TByteArray;
|
776 |
tony |
143 |
function getAsDateTime: TDateTime;
|
777 |
tony |
56 |
procedure DecodeVersionString(var Version: byte; var VersionString: AnsiString);
|
778 |
tony |
45 |
function getOperationCounts: TDBOperationCounts;
|
779 |
|
|
procedure DecodeUserNames(UserNames: TStrings);
|
780 |
|
|
|
781 |
|
|
{user names only}
|
782 |
|
|
function GetCount: integer;
|
783 |
|
|
function GetItem(index: integer): IDBInfoItem;
|
784 |
|
|
function Find(ItemType: byte): IDBInfoItem;
|
785 |
|
|
property AsInteger: integer read getAsInteger;
|
786 |
tony |
56 |
property AsString: AnsiString read GetAsString;
|
787 |
tony |
45 |
property Count: integer read GetCount;
|
788 |
|
|
property Items[index: integer]: IDBInfoItem read getItem; default;
|
789 |
|
|
end;
|
790 |
|
|
|
791 |
|
|
{ IDBInformation }
|
792 |
|
|
|
793 |
|
|
IDBInformation = interface
|
794 |
tony |
56 |
['{7ac6777f-f0a9-498a-9f5c-4a57a554df81}']
|
795 |
tony |
45 |
function GetCount: integer;
|
796 |
|
|
function GetItem(index: integer): IDBInfoItem;
|
797 |
|
|
function Find(ItemType: byte): IDBInfoItem;
|
798 |
|
|
procedure PrintBuf; {can be used to print buffer in hex for debugging}
|
799 |
|
|
property Count: integer read GetCount;
|
800 |
|
|
property Items[index: integer]: IDBInfoItem read getItem; default;
|
801 |
|
|
end;
|
802 |
|
|
|
803 |
tony |
143 |
{The Database Information Request Block is used to pass requests for
|
804 |
|
|
database information where at least one item requested has a parameter.
|
805 |
|
|
At present, this is only fb_info_page_contents which has a single
|
806 |
|
|
integer parameter.}
|
807 |
|
|
|
808 |
|
|
IDIRBItem = interface(IParameterBlockItem)
|
809 |
|
|
['{d34a7511-8435-4a24-81a7-5103d218d234}']
|
810 |
|
|
end;
|
811 |
|
|
|
812 |
|
|
IDIRB = interface(IParameterBlock<IDIRBItem>)
|
813 |
|
|
['{1010e5ac-0a8f-403b-a302-91625e9d9579}']
|
814 |
|
|
end;
|
815 |
|
|
|
816 |
|
|
|
817 |
tony |
45 |
{The Database Parameter Block (DPB).
|
818 |
|
|
|
819 |
|
|
The DPB provides the parameters used when connecting to a database. It is allocated
|
820 |
|
|
empty by the FirebirdAPI and the parameters are then added to it. Each individual
|
821 |
|
|
parameter may be accessed by the IDPBItem interface which can be used to set the
|
822 |
|
|
value, if any, of the parameter.
|
823 |
|
|
|
824 |
|
|
The DPB parameters, and the associated symbolic codes and parameter values may be
|
825 |
|
|
found in the Interbase 6.0 API Guide.
|
826 |
|
|
}
|
827 |
|
|
|
828 |
tony |
56 |
IDPBItem = interface(IParameterBlockItem)
|
829 |
|
|
['{123d4ad0-087a-4cd1-a344-1b3d03b30673}']
|
830 |
|
|
end;
|
831 |
tony |
45 |
|
832 |
tony |
56 |
IDPB = interface(IParameterBlock<IDPBItem>)
|
833 |
|
|
['{e676067b-1cf4-4eba-9256-9724f57e0d16}']
|
834 |
|
|
end;
|
835 |
tony |
45 |
|
836 |
|
|
{The IAttachment interface provides access to a Database Connection. It may be
|
837 |
|
|
used to:
|
838 |
|
|
|
839 |
|
|
a. Disconnect and reconnect to the database.
|
840 |
|
|
|
841 |
|
|
b. Start a Transaction on the database
|
842 |
|
|
|
843 |
|
|
c. Execute directly SQL DDL Statements and others that return no information.
|
844 |
|
|
|
845 |
|
|
d. OpenCursors (i.e. execute SQL Select statements and return the results)
|
846 |
|
|
|
847 |
|
|
e. Prepare SQL Statements, returning an IStatement interface for further processing.
|
848 |
|
|
|
849 |
|
|
f. Provide access to an SQL Event Handler.
|
850 |
|
|
|
851 |
|
|
g. Access Database Information.
|
852 |
|
|
|
853 |
|
|
h. Support the handling of Array and Blob data.
|
854 |
|
|
|
855 |
|
|
Note that SQL statements can be prepared with named parameters (PSQL style).
|
856 |
|
|
This then allows the parameters to be accessed by name. The same name can
|
857 |
|
|
be used for more than one parameter, allowing a single operation to be used
|
858 |
|
|
to set all parameters with the same name.
|
859 |
|
|
}
|
860 |
|
|
|
861 |
|
|
{ IAttachment }
|
862 |
|
|
|
863 |
|
|
IAttachment = interface
|
864 |
tony |
56 |
['{466e9b67-9def-4807-b3e7-e08a35e7185c}']
|
865 |
tony |
45 |
function getDPB: IDPB;
|
866 |
|
|
function AllocateBPB: IBPB;
|
867 |
tony |
143 |
function AllocateDIRB: IDIRB;
|
868 |
tony |
45 |
procedure Connect;
|
869 |
|
|
procedure Disconnect(Force: boolean=false);
|
870 |
|
|
function IsConnected: boolean;
|
871 |
|
|
procedure DropDatabase;
|
872 |
|
|
function StartTransaction(TPB: array of byte; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
|
873 |
|
|
function StartTransaction(TPB: ITPB; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
|
874 |
tony |
56 |
procedure ExecImmediate(transaction: ITransaction; sql: AnsiString; SQLDialect: integer); overload;
|
875 |
|
|
procedure ExecImmediate(TPB: array of byte; sql: AnsiString; SQLDialect: integer); overload;
|
876 |
|
|
procedure ExecImmediate(transaction: ITransaction; sql: AnsiString); overload;
|
877 |
|
|
procedure ExecImmediate(TPB: array of byte; sql: AnsiString); overload;
|
878 |
|
|
function ExecuteSQL(TPB: array of byte; sql: AnsiString; SQLDialect: integer; params: array of const): IResults; overload;
|
879 |
|
|
function ExecuteSQL(transaction: ITransaction; sql: AnsiString; SQLDialect: integer; params: array of const): IResults; overload;
|
880 |
|
|
function ExecuteSQL(TPB: array of byte; sql: AnsiString; params: array of const): IResults; overload;
|
881 |
|
|
function ExecuteSQL(transaction: ITransaction; sql: AnsiString; params: array of const): IResults; overload;
|
882 |
|
|
function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer): IResultSet; overload;
|
883 |
|
|
function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer;
|
884 |
tony |
45 |
params: array of const): IResultSet; overload;
|
885 |
tony |
56 |
function OpenCursor(transaction: ITransaction; sql: AnsiString): IResultSet; overload;
|
886 |
|
|
function OpenCursor(transaction: ITransaction; sql: AnsiString;
|
887 |
tony |
45 |
params: array of const): IResultSet; overload;
|
888 |
tony |
56 |
function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer): IResultSet; overload;
|
889 |
|
|
function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer;
|
890 |
tony |
45 |
params: array of const): IResultSet; overload;
|
891 |
tony |
56 |
function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString): IResultSet; overload;
|
892 |
|
|
function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString;
|
893 |
tony |
45 |
params: array of const): IResultSet; overload;
|
894 |
tony |
56 |
function OpenCursorAtStart(sql: AnsiString): IResultSet; overload;
|
895 |
|
|
function OpenCursorAtStart(sql: AnsiString;
|
896 |
tony |
45 |
params: array of const): IResultSet; overload;
|
897 |
tony |
56 |
function Prepare(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer): IStatement; overload;
|
898 |
|
|
function Prepare(transaction: ITransaction; sql: AnsiString): IStatement; overload;
|
899 |
|
|
function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
|
900 |
tony |
45 |
aSQLDialect: integer; GenerateParamNames: boolean=false): IStatement; overload;
|
901 |
tony |
56 |
function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
|
902 |
tony |
45 |
GenerateParamNames: boolean=false): IStatement; overload;
|
903 |
|
|
|
904 |
|
|
{Events}
|
905 |
|
|
function GetEventHandler(Events: TStrings): IEvents; overload;
|
906 |
tony |
56 |
function GetEventHandler(Event: AnsiString): IEvents; overload;
|
907 |
tony |
45 |
|
908 |
|
|
{Blob - may use to open existing Blobs. However, ISQLData.AsBlob is preferred}
|
909 |
|
|
|
910 |
tony |
56 |
function CreateBlob(transaction: ITransaction; RelationName, ColumnName: AnsiString; BPB: IBPB=nil): IBlob; overload;
|
911 |
tony |
45 |
function CreateBlob(transaction: ITransaction; BlobMetaData: IBlobMetaData; BPB: IBPB=nil): IBlob; overload;
|
912 |
|
|
function CreateBlob(transaction: ITransaction; SubType: integer; CharSetID: cardinal=0; BPB: IBPB=nil): IBlob; overload;
|
913 |
tony |
56 |
function OpenBlob(transaction: ITransaction; RelationName, ColumnName: AnsiString; BlobID: TISC_QUAD; BPB: IBPB=nil): IBlob;
|
914 |
tony |
45 |
|
915 |
|
|
{Array - may use to open existing arrays. However, ISQLData.AsArray is preferred}
|
916 |
|
|
|
917 |
tony |
56 |
function OpenArray(transaction: ITransaction; RelationName, ColumnName: AnsiString; ArrayID: TISC_QUAD): IArray;
|
918 |
|
|
function CreateArray(transaction: ITransaction; RelationName, ColumnName: AnsiString): IArray; overload;
|
919 |
tony |
45 |
function CreateArray(transaction: ITransaction; ArrayMetaData: IArrayMetaData): IArray; overload;
|
920 |
tony |
56 |
function CreateArrayMetaData(SQLType: cardinal; tableName: AnsiString; columnName: AnsiString;
|
921 |
tony |
47 |
Scale: integer; size: cardinal; charSetID: cardinal; dimensions: cardinal;
|
922 |
|
|
bounds: TArrayBounds): IArrayMetaData;
|
923 |
tony |
45 |
|
924 |
|
|
{Database Information}
|
925 |
|
|
function GetSQLDialect: integer;
|
926 |
tony |
56 |
function GetBlobMetaData(Transaction: ITransaction; tableName, columnName: AnsiString): IBlobMetaData;
|
927 |
|
|
function GetArrayMetaData(Transaction: ITransaction; tableName, columnName: AnsiString): IArrayMetaData;
|
928 |
tony |
45 |
function GetDBInformation(Requests: array of byte): IDBInformation; overload;
|
929 |
|
|
function GetDBInformation(Request: byte): IDBInformation; overload;
|
930 |
tony |
143 |
function GetDBInformation(Requests: IDIRB): IDBInformation; overload;
|
931 |
tony |
117 |
function GetConnectString: AnsiString;
|
932 |
|
|
function GetRemoteProtocol: AnsiString;
|
933 |
tony |
143 |
function GetAuthenticationMethod: AnsiString;
|
934 |
tony |
117 |
function GetODSMajorVersion: integer;
|
935 |
|
|
function GetODSMinorVersion: integer;
|
936 |
tony |
45 |
function HasActivity: boolean;
|
937 |
tony |
60 |
|
938 |
|
|
{Character Sets}
|
939 |
tony |
109 |
function HasDefaultCharSet: boolean;
|
940 |
|
|
function GetDefaultCharSetID: integer;
|
941 |
tony |
60 |
function GetCharsetName(CharSetID: integer): AnsiString;
|
942 |
|
|
function CharSetID2CodePage(CharSetID: integer; var CodePage: TSystemCodePage): boolean;
|
943 |
|
|
function CodePage2CharSetID(CodePage: TSystemCodePage; var CharSetID: integer): boolean;
|
944 |
|
|
function CharSetName2CharSetID(CharSetName: AnsiString; var CharSetID: integer): boolean;
|
945 |
|
|
function CharSetWidth(CharSetID: integer; var Width: integer): boolean;
|
946 |
|
|
procedure RegisterCharSet(CharSetName: AnsiString; CodePage: TSystemCodePage;
|
947 |
|
|
AllowReverseLookup:boolean; out CharSetID: integer);
|
948 |
tony |
45 |
end;
|
949 |
|
|
|
950 |
tony |
143 |
TProtocolAll = (TCP, SPX, NamedPipe, Local, inet, wnet, xnet, unknownProtocol);
|
951 |
|
|
TProtocol = TCP..xnet;
|
952 |
tony |
45 |
|
953 |
|
|
{Service Parameter Block (SPB).
|
954 |
|
|
|
955 |
|
|
The SPB provides the parameters used when connecting to a Service Manager. It is
|
956 |
|
|
allocated empty by the FirebirdAPI and the parameters are then added to it. Each
|
957 |
|
|
individual parameter may be accessed by the ISPBItem interface which can be used
|
958 |
|
|
to set the value, if any, of the parameter.
|
959 |
|
|
|
960 |
|
|
The SPB parameters, and the associated symbolic codes and parameter values may be
|
961 |
|
|
found in the Interbase 6.0 API Guide.
|
962 |
|
|
|
963 |
|
|
}
|
964 |
|
|
|
965 |
tony |
56 |
ISPBItem = interface(IParameterBlockItem)
|
966 |
|
|
['{5d08ae2b-4519-41bd-8b40-97cd451c3f6a}']
|
967 |
|
|
end;
|
968 |
tony |
45 |
|
969 |
tony |
56 |
ISPB = interface(IParameterBlock<ISPBItem>)
|
970 |
|
|
['{2c5836fd-41ed-4426-9b7d-5af580ec2659}']
|
971 |
|
|
end;
|
972 |
tony |
45 |
|
973 |
|
|
{Service Query Parameter Block (SQPB).
|
974 |
|
|
|
975 |
|
|
This is a specialised parameter block used to send data to a service manager
|
976 |
|
|
in a Query Request.
|
977 |
|
|
}
|
978 |
|
|
|
979 |
|
|
ISQPBItem = interface(IParameterBlockItem)
|
980 |
tony |
56 |
['{b07841a6-33b3-47f0-b5a2-028cbc86dc97}']
|
981 |
tony |
45 |
function CopyFrom(source: TStream; count: integer): integer;
|
982 |
|
|
end;
|
983 |
|
|
|
984 |
tony |
56 |
ISQPB = interface(IParameterBlock<ISQPBItem>)
|
985 |
|
|
['{8553e66b-ee62-498b-8431-dff030211447}']
|
986 |
|
|
end;
|
987 |
tony |
45 |
|
988 |
|
|
{Service Request Block (SRB).
|
989 |
|
|
|
990 |
|
|
The SRB specifies what is requested from the Service Manager when starting a
|
991 |
|
|
service or querying a service. It is allocated empty by the ServiceManager API and
|
992 |
|
|
the parameters are then added to it. Each individual parameter may be accessed
|
993 |
|
|
by the ISRBItem interface which can be used to set the value, if any, of the parameter.
|
994 |
|
|
|
995 |
|
|
The SRB parameters, and the associated symbolic codes and parameter values may be
|
996 |
|
|
found in the Interbase 6.0 API Guide.
|
997 |
|
|
|
998 |
|
|
}
|
999 |
|
|
|
1000 |
tony |
56 |
ISRBItem = interface(IParameterBlockItem)
|
1001 |
|
|
['{47ec790e-f265-4b30-9dcd-261e51677245}']
|
1002 |
|
|
end;
|
1003 |
tony |
45 |
|
1004 |
tony |
56 |
ISRB = interface(IParameterBlock<ISRBItem>)
|
1005 |
|
|
['{9f2e204f-3c33-4e44-90f9-9135e95dafb9}']
|
1006 |
|
|
end;
|
1007 |
tony |
45 |
|
1008 |
|
|
{The Service Query Results Interface.
|
1009 |
|
|
|
1010 |
|
|
An IServiceQueryResults interface is returned by the IServiceManager Query
|
1011 |
|
|
method. The interface provides access to the information requested and
|
1012 |
|
|
returned by the method.
|
1013 |
|
|
|
1014 |
|
|
IServiceQueryResults itself gives access to a collection of IServiceQueryResultItem.
|
1015 |
|
|
Each one provides information requested, as indicated by the ItemType and the actual
|
1016 |
|
|
value of the information. In some cases, the returned item is itself a
|
1017 |
|
|
collection of IServiceQueryResultSubItem.
|
1018 |
|
|
|
1019 |
|
|
The IServiceQueryResultItem items, and the associated symbolic codes and parameter values may be
|
1020 |
|
|
found in the Interbase 6.0 API Guide.
|
1021 |
|
|
}
|
1022 |
|
|
|
1023 |
|
|
IServiceQueryResultSubItem = interface
|
1024 |
tony |
56 |
['{8a4c381e-9923-4cc9-a96b-553729248640}']
|
1025 |
tony |
45 |
function getItemType: byte;
|
1026 |
|
|
function getSize: integer;
|
1027 |
|
|
procedure getRawBytes(var Buffer);
|
1028 |
tony |
56 |
function getAsString: AnsiString;
|
1029 |
tony |
45 |
function getAsInteger: integer;
|
1030 |
|
|
function getAsByte: byte;
|
1031 |
|
|
function CopyTo(stream: TStream; count: integer): integer;
|
1032 |
tony |
56 |
property AsString: AnsiString read getAsString;
|
1033 |
tony |
45 |
property AsInteger: integer read getAsInteger;
|
1034 |
|
|
property AsByte: byte read getAsByte;
|
1035 |
|
|
end;
|
1036 |
|
|
|
1037 |
|
|
IServiceQueryResultItem = interface(IServiceQueryResultSubItem)
|
1038 |
tony |
56 |
['{b2806886-206c-4024-8df9-5fe0a7630a5e}']
|
1039 |
tony |
45 |
function getCount: integer;
|
1040 |
|
|
function getItem(index: integer): IServiceQueryResultSubItem;
|
1041 |
|
|
function find(ItemType: byte): IServiceQueryResultSubItem;
|
1042 |
|
|
property Items[index: integer]: IServiceQueryResultSubItem read getItem; default;
|
1043 |
|
|
property Count: integer read getCount;
|
1044 |
|
|
end;
|
1045 |
|
|
|
1046 |
|
|
IServiceQueryResults = interface
|
1047 |
tony |
56 |
['{8fbbef7d-fe03-4409-828a-a787d34ef531}']
|
1048 |
tony |
45 |
function getCount: integer;
|
1049 |
|
|
function getItem(index: integer): IServiceQueryResultItem;
|
1050 |
|
|
function find(ItemType: byte): IServiceQueryResultItem;
|
1051 |
|
|
procedure PrintBuf; {can be used to print buffer in hex for debugging}
|
1052 |
|
|
property Items[index: integer]: IServiceQueryResultItem read getItem; default;
|
1053 |
|
|
property Count: integer read getCount;
|
1054 |
|
|
end;
|
1055 |
|
|
|
1056 |
|
|
{The IServiceManager interface provides access to a service manager. It can
|
1057 |
|
|
used to Detach and re-attach to Service Manager, to start services and to
|
1058 |
|
|
query the service manager.
|
1059 |
|
|
|
1060 |
|
|
The interface is returned by the FirebirdAPI GetService Manager method.
|
1061 |
|
|
}
|
1062 |
|
|
|
1063 |
|
|
{ IServiceManager }
|
1064 |
|
|
|
1065 |
|
|
IServiceManager = interface
|
1066 |
tony |
56 |
['{905b587d-1e1f-4e40-a3f8-a3519f852e48}']
|
1067 |
tony |
45 |
function getSPB: ISPB;
|
1068 |
tony |
56 |
function getServerName: AnsiString;
|
1069 |
tony |
45 |
procedure Attach;
|
1070 |
|
|
procedure Detach(Force: boolean=false);
|
1071 |
|
|
function IsAttached: boolean;
|
1072 |
|
|
function AllocateSRB: ISRB;
|
1073 |
|
|
function AllocateSQPB: ISQPB;
|
1074 |
|
|
procedure Start(Request: ISRB);
|
1075 |
|
|
function Query(SQPB: ISQPB; Request: ISRB) :IServiceQueryResults; overload;
|
1076 |
|
|
function Query(Request: ISRB) :IServiceQueryResults; overload;
|
1077 |
|
|
end;
|
1078 |
|
|
|
1079 |
|
|
{The Firebird API.
|
1080 |
|
|
|
1081 |
|
|
This is the base interface and is used to create/open a database connection, to
|
1082 |
|
|
start a transaction on multiple databases and the access the service manager.
|
1083 |
|
|
|
1084 |
|
|
The interface is returned by the FirebirdAPI function.
|
1085 |
|
|
}
|
1086 |
|
|
|
1087 |
|
|
IFirebirdAPI = interface
|
1088 |
tony |
56 |
['{edeee691-c8d3-4dcf-a780-cd7e432821d5}']
|
1089 |
tony |
45 |
{Database connections}
|
1090 |
|
|
function AllocateDPB: IDPB;
|
1091 |
tony |
56 |
function OpenDatabase(DatabaseName: AnsiString; DPB: IDPB; RaiseExceptionOnConnectError: boolean=true): IAttachment;
|
1092 |
|
|
function CreateDatabase(DatabaseName: AnsiString; DPB: IDPB; RaiseExceptionOnError: boolean=true): IAttachment; overload;
|
1093 |
|
|
function CreateDatabase(sql: AnsiString; aSQLDialect: integer; RaiseExceptionOnError: boolean=true): IAttachment; overload;
|
1094 |
tony |
45 |
|
1095 |
|
|
{Start Transaction against multiple databases}
|
1096 |
|
|
function AllocateTPB: ITPB;
|
1097 |
|
|
function StartTransaction(Attachments: array of IAttachment;
|
1098 |
|
|
TPB: array of byte; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
|
1099 |
|
|
function StartTransaction(Attachments: array of IAttachment;
|
1100 |
|
|
TPB: ITPB; DefaultCompletion: TTransactionCompletion=taCommit): ITransaction; overload;
|
1101 |
|
|
|
1102 |
|
|
{Service Manager}
|
1103 |
|
|
function HasServiceAPI: boolean;
|
1104 |
|
|
function AllocateSPB: ISPB;
|
1105 |
tony |
143 |
function GetServiceManager(ServerName: AnsiString; Protocol: TProtocol; SPB: ISPB): IServiceManager; overload;
|
1106 |
|
|
function GetServiceManager(ServerName: AnsiString; Port: AnsiString; Protocol: TProtocol; SPB: ISPB): IServiceManager; overload;
|
1107 |
tony |
45 |
|
1108 |
|
|
{Information}
|
1109 |
|
|
function GetStatus: IStatus;
|
1110 |
|
|
function GetLibraryName: string;
|
1111 |
|
|
function HasRollbackRetaining: boolean;
|
1112 |
|
|
function IsEmbeddedServer: boolean;
|
1113 |
tony |
56 |
function GetImplementationVersion: AnsiString;
|
1114 |
tony |
45 |
|
1115 |
|
|
{Firebird 3 API}
|
1116 |
|
|
function HasMasterIntf: boolean;
|
1117 |
|
|
function GetIMaster: TObject;
|
1118 |
|
|
end;
|
1119 |
|
|
|
1120 |
|
|
type
|
1121 |
|
|
TOnGetLibraryName = procedure(var libname: string);
|
1122 |
|
|
|
1123 |
|
|
const
|
1124 |
|
|
OnGetLibraryName: TOnGetLibraryName = nil;
|
1125 |
|
|
AllowUseOfFBLIB: boolean = false;
|
1126 |
|
|
|
1127 |
|
|
type
|
1128 |
|
|
{ EIBError }
|
1129 |
|
|
|
1130 |
|
|
EIBError = class(EDatabaseError)
|
1131 |
|
|
private
|
1132 |
|
|
FSQLCode: Long;
|
1133 |
|
|
public
|
1134 |
tony |
56 |
constructor Create(ASQLCode: Long; Msg: AnsiString);
|
1135 |
tony |
45 |
property SQLCode: Long read FSQLCode;
|
1136 |
|
|
end;
|
1137 |
|
|
|
1138 |
|
|
{ EIBInterBaseError - Firebird Engine errors}
|
1139 |
|
|
|
1140 |
|
|
EIBInterBaseError = class(EIBError)
|
1141 |
|
|
private
|
1142 |
|
|
FIBErrorCode: Long;
|
1143 |
|
|
public
|
1144 |
|
|
constructor Create(Status: IStatus); overload;
|
1145 |
tony |
56 |
constructor Create(ASQLCode: Long; AIBErrorCode: Long; Msg: AnsiString); overload;
|
1146 |
tony |
45 |
property IBErrorCode: Long read FIBErrorCode;
|
1147 |
|
|
end;
|
1148 |
|
|
|
1149 |
|
|
{IB Client Exceptions}
|
1150 |
|
|
EIBClientError = class(EIBError);
|
1151 |
|
|
|
1152 |
|
|
{IBError is used internally and by IBX to throw an EIBClientError}
|
1153 |
|
|
|
1154 |
|
|
procedure IBError(ErrMess: TIBClientError; const Args: array of const);
|
1155 |
|
|
|
1156 |
|
|
{The Firebird API function is used to access the IFirebirdAPI interface.
|
1157 |
|
|
|
1158 |
|
|
It will load the Firebird Client Library if this is not already loaded and
|
1159 |
|
|
select an implementation of the Firebird API (legacy 2.5 or 3.0.
|
1160 |
|
|
}
|
1161 |
|
|
|
1162 |
|
|
function FirebirdAPI: IFirebirdAPI;
|
1163 |
|
|
|
1164 |
|
|
{IBX support functions. Probably best ignored i.e. always used the FirebirdAPI
|
1165 |
|
|
functino to load the library and check if it's loaded.}
|
1166 |
|
|
|
1167 |
|
|
function TryIBLoad: Boolean;
|
1168 |
|
|
procedure CheckIBLoaded;
|
1169 |
|
|
|
1170 |
|
|
implementation
|
1171 |
|
|
|
1172 |
|
|
uses FBClientAPI
|
1173 |
|
|
{$IFDEF USELEGACYFIREBIRDAPI}, FB25ClientAPI {$ENDIF}
|
1174 |
|
|
{$IFDEF USEFIREBIRD3API}, FB30ClientAPI {$ENDIF};
|
1175 |
|
|
|
1176 |
|
|
var FFirebirdAPI: IFirebirdAPI;
|
1177 |
|
|
|
1178 |
|
|
function FirebirdAPI: IFirebirdAPI;
|
1179 |
|
|
begin
|
1180 |
|
|
if FFirebirdAPI = nil then
|
1181 |
|
|
CheckIBLoaded;
|
1182 |
|
|
Result := FFirebirdAPI;
|
1183 |
|
|
end;
|
1184 |
|
|
|
1185 |
|
|
function TryIBLoad: Boolean;
|
1186 |
|
|
begin
|
1187 |
|
|
Result := FFirebirdAPI <> nil;
|
1188 |
|
|
try
|
1189 |
|
|
{$IFDEF USEFIREBIRD3API}
|
1190 |
|
|
if not Result then
|
1191 |
|
|
begin
|
1192 |
|
|
FFirebirdAPI := TFB30ClientAPI.Create;
|
1193 |
|
|
Result := FFirebirdAPI.HasMasterIntf;
|
1194 |
|
|
end;
|
1195 |
|
|
{$ENDIF}
|
1196 |
|
|
{$IFDEF USELEGACYFIREBIRDAPI}
|
1197 |
|
|
if not Result then
|
1198 |
|
|
begin
|
1199 |
|
|
FFirebirdAPI := nil;
|
1200 |
|
|
FFirebirdAPI := TFB25ClientAPI.Create;
|
1201 |
|
|
Result := true;
|
1202 |
|
|
end;
|
1203 |
|
|
{$ENDIF}
|
1204 |
|
|
if Result and not (FFirebirdAPI as TFBClientAPI).IsLibraryLoaded then
|
1205 |
|
|
begin
|
1206 |
|
|
Result := false;
|
1207 |
|
|
FFirebirdAPI := nil;
|
1208 |
|
|
end;
|
1209 |
|
|
except
|
1210 |
|
|
SysUtils.showexception(ExceptObject,ExceptAddr);
|
1211 |
|
|
Result := false;
|
1212 |
|
|
end;
|
1213 |
|
|
end;
|
1214 |
|
|
|
1215 |
|
|
procedure CheckIBLoaded;
|
1216 |
|
|
begin
|
1217 |
|
|
if not TryIBLoad then
|
1218 |
|
|
IBError(ibxeInterBaseMissing, [nil]);
|
1219 |
|
|
end;
|
1220 |
|
|
|
1221 |
|
|
{ EIBError }
|
1222 |
|
|
|
1223 |
tony |
56 |
constructor EIBError.Create(ASQLCode: Long; Msg: AnsiString);
|
1224 |
tony |
45 |
begin
|
1225 |
|
|
inherited Create(Msg);
|
1226 |
|
|
FSQLCode := ASQLCode;
|
1227 |
|
|
end;
|
1228 |
|
|
|
1229 |
|
|
{ EIBInterBaseError }
|
1230 |
|
|
|
1231 |
|
|
constructor EIBInterBaseError.Create(Status: IStatus);
|
1232 |
|
|
begin
|
1233 |
|
|
inherited Create(Status.Getsqlcode,Status.GetMessage);
|
1234 |
|
|
FIBErrorCode := Status.GetIBErrorCode;
|
1235 |
|
|
end;
|
1236 |
|
|
|
1237 |
|
|
constructor EIBInterBaseError.Create(ASQLCode: Long; AIBErrorCode: Long;
|
1238 |
tony |
56 |
Msg: AnsiString);
|
1239 |
tony |
45 |
begin
|
1240 |
|
|
inherited Create(ASQLCode,Msg);
|
1241 |
|
|
FIBErrorCode := AIBErrorCode;
|
1242 |
|
|
end;
|
1243 |
|
|
|
1244 |
|
|
procedure IBError(ErrMess: TIBClientError; const Args: array of const);
|
1245 |
|
|
begin
|
1246 |
|
|
raise EIBClientError.Create(Ord(ErrMess),
|
1247 |
|
|
Format(GetErrorMessage(ErrMess), Args));
|
1248 |
|
|
end;
|
1249 |
|
|
|
1250 |
|
|
initialization
|
1251 |
|
|
FFirebirdAPI := nil;
|
1252 |
|
|
|
1253 |
|
|
|
1254 |
|
|
end.
|
1255 |
|
|
|