GDAL

- Main Page
- Related Pages
- Classes
- Files

- File List
- File Members

ogr_attrind.h
1 /******************************************************************************
2 * $Id: ogr_attrind.h 32177 2015-12-14 07:25:30Z goatbar $
3 *
4 * Project: OpenGIS Simple Features Reference Implementation
5 * Purpose: Classes related to generic implementation of attribute indexing.
6 * Author: Frank Warmerdam, warmerdam@pobox.com
7 *
8 ******************************************************************************
9 * Copyright (c) 2003, Frank Warmerdam <warmerdam@pobox.com>
10 *
11 * Permission is hereby granted, free of charge, to any person obtaining a
12 * copy of this software and associated documentation files (the "Software"),
13 * to deal in the Software without restriction, including without limitation
14 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
15 * and/or sell copies of the Software, and to permit persons to whom the
16 * Software is furnished to do so, subject to the following conditions:
17 *
18 * The above copyright notice and this permission notice shall be included
19 * in all copies or substantial portions of the Software.
20 *
21 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
22 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
24 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
25 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
26 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
27 * DEALINGS IN THE SOFTWARE.
28 ****************************************************************************/
29
30 #ifndef OGR_ATTRIND_H_INCLUDED
31 #define OGR_ATTRIND_H_INCLUDED
32
33 #include "ogrsf_frmts.h"
34
35 /************************************************************************/
36 /* OGRAttrIndex */
37 /* */
38 /* Base class for accessing the indexing info about one field. */
39 /************************************************************************/
40
41 class CPL_DLL OGRAttrIndex
42 {
43 protected:
44 OGRAttrIndex();
45
46 public:
47 virtual ~OGRAttrIndex();
48
49 virtual GIntBig GetFirstMatch( OGRField *psKey ) = 0;
50 virtual GIntBig *GetAllMatches( OGRField *psKey ) = 0;
51 virtual GIntBig *GetAllMatches( OGRField *psKey, GIntBig* panFIDList, int* nFIDCount, int* nLength ) = 0;
52
53 virtual OGRErr AddEntry( OGRField *psKey, GIntBig nFID ) = 0;
54 virtual OGRErr RemoveEntry( OGRField *psKey, GIntBig nFID ) = 0;
55
56 virtual OGRErr Clear() = 0;
57 };
58
59 /************************************************************************/
60 /* OGRLayerAttrIndex */
61 /* */
62 /* Base class representing attribute indexes for all indexed */
63 /* fields in a layer. */
64 /************************************************************************/
65
66 class CPL_DLL OGRLayerAttrIndex
67 {
68 protected:
69 OGRLayer *poLayer;
70 char *pszIndexPath;
71
72 OGRLayerAttrIndex();
73
74 public:
75 virtual ~OGRLayerAttrIndex();
76
77 virtual OGRErr Initialize( const char *pszIndexPath, OGRLayer * ) = 0;
78
79 virtual OGRErr CreateIndex( int iField ) = 0;
80 virtual OGRErr DropIndex( int iField ) = 0;
81 virtual OGRErr IndexAllFeatures( int iField = -1 ) = 0;
82
83 virtual OGRErr AddToIndex( OGRFeature *poFeature, int iField = -1 ) = 0;
84 virtual OGRErr RemoveFromIndex( OGRFeature *poFeature ) = 0;
85
86 virtual OGRAttrIndex *GetFieldIndex( int iField ) = 0;
87 };
88
89 OGRLayerAttrIndex CPL_DLL *OGRCreateDefaultLayerIndex();
90
91
92 #endif /* ndef OGR_ATTRIND_H_INCLUDED */
93
OGRAttrIndex
Definition: ogr_attrind.h:41
ogrsf_frmts.h
Classes related to registration of format support, and opening datasets.
OGRField
OGRFeature field attribute value union.
Definition: ogr_core.h:662
OGRLayer
This class represents a layer of simple features, with access methods.
Definition: ogrsf_frmts.h:66
OGRFeature
A simple feature, including geometry and attributes.
Definition: ogr_feature.h:274
OGRLayerAttrIndex
Definition: ogr_attrind.h:66

Generated for GDAL by 1.8.8.