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/******************************************************************************
* $Id: ogr_idb.h 15583 2008-10-23 00:04:33Z warmerdam $
*
* Project: OpenGIS Simple Features Reference Implementation
* Purpose: Implements OGRIDBTableLayer class, access to an existing table
* (based on ODBC and PG drivers).
* Author: Oleg Semykin, oleg.semykin@gmail.com
*
******************************************************************************
* Copyright (c) 2006, Oleg Semykin
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
****************************************************************************/
#ifndef _OGR_IDB_H_INCLUDED_
#define _OGR_IDB_H_INCLUDED_
#include "ogrsf_frmts.h"
#include "cpl_error.h"
#include <it.h>
/************************************************************************/
/* OGRIDBLayer */
/************************************************************************/
class OGRIDBDataSource;
class OGRIDBLayer : public OGRLayer
{
protected:
OGRFeatureDefn *poFeatureDefn;
ITCursor *poCurr;
// Layer spatial reference system, and srid.
OGRSpatialReference *poSRS;
int nSRSId;
int iNextShapeId;
OGRIDBDataSource *poDS;
int bGeomColumnWKB;
char *pszGeomColumn;
char *pszFIDColumn;
CPLErr BuildFeatureDefn( const char *pszLayerName,
ITCursor *poCurr );
virtual ITCursor * GetQuery() { return poCurr; }
public:
OGRIDBLayer();
virtual ~OGRIDBLayer();
virtual void ResetReading();
virtual OGRFeature *GetNextRawFeature();
virtual OGRFeature *GetNextFeature();
virtual OGRFeature *GetFeature( long nFeatureId );
OGRFeatureDefn * GetLayerDefn() { return poFeatureDefn; }
virtual const char *GetFIDColumn();
virtual const char *GetGeometryColumn();
virtual OGRSpatialReference *GetSpatialRef();
virtual int TestCapability( const char * );
};
/************************************************************************/
/* OGRIDBTableLayer */
/************************************************************************/
class OGRIDBTableLayer : public OGRIDBLayer
{
int bUpdateAccess;
char *pszQuery;
int bHaveSpatialExtents;
void ClearQuery();
OGRErr ResetQuery();
virtual ITCursor * GetQuery();
public:
OGRIDBTableLayer( OGRIDBDataSource * );
~OGRIDBTableLayer();
CPLErr Initialize( const char *pszTableName,
const char *pszGeomCol,
int bUpdate
);
virtual void ResetReading();
virtual int GetFeatureCount( int );
virtual OGRErr SetAttributeFilter( const char * );
virtual OGRErr SetFeature( OGRFeature *poFeature );
virtual OGRErr CreateFeature( OGRFeature *poFeature );
#if 0
virtual OGRErr CreateField( OGRFieldDefn *poField,
int bApproxOK = TRUE );
#endif
virtual OGRFeature *GetFeature( long nFeatureId );
virtual OGRSpatialReference *GetSpatialRef();
virtual int TestCapability( const char * );
};
/************************************************************************/
/* OGRIDBSelectLayer */
/************************************************************************/
class OGRIDBSelectLayer : public OGRIDBLayer
{
char *pszBaseQuery;
void ClearQuery();
OGRErr ResetQuery();
virtual ITCursor * GetQuery();
public:
OGRIDBSelectLayer( OGRIDBDataSource *,
ITCursor * );
~OGRIDBSelectLayer();
virtual void ResetReading();
virtual int GetFeatureCount( int );
virtual OGRFeature *GetFeature( long nFeatureId );
virtual OGRErr GetExtent(OGREnvelope *psExtent, int bForce = TRUE);
virtual int TestCapability( const char * );
};
/************************************************************************/
/* OGRIDBDataSource */
/************************************************************************/
class OGRIDBDataSource : public OGRDataSource
{
OGRIDBLayer **papoLayers;
int nLayers;
char *pszName;
int bDSUpdate;
ITConnection *poConn;
public:
OGRIDBDataSource();
~OGRIDBDataSource();
int Open( const char *, int bUpdate, int bTestOpen );
int OpenTable( const char *pszTableName,
const char *pszGeomCol,
int bUpdate );
const char *GetName() { return pszName; }
int GetLayerCount() { return nLayers; }
OGRLayer *GetLayer( int );
int TestCapability( const char * );
virtual OGRLayer * ExecuteSQL( const char *pszSQLCommand,
OGRGeometry *poSpatialFilter,
const char *pszDialect );
virtual void ReleaseResultSet( OGRLayer * poLayer );
// Internal use
ITConnection * GetConnection() { return poConn; }
};
/************************************************************************/
/* OGRIDBDriver */
/************************************************************************/
class OGRIDBDriver : public OGRSFDriver
{
public:
~OGRIDBDriver();
const char * GetName();
OGRDataSource * Open( const char *, int );
OGRDataSource * CreateDataSource( const char *pszName,
char ** = NULL );
int TestCapability( const char * );
};
ITCallbackResult
IDBErrorHandler( const ITErrorManager &err, void * userdata, long errorlevel );
#endif /* ndef _OGR_idb_H_INCLUDED_ */
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