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Viewing changes to ogr/ogrsf_frmts/geomedia/ogrgeomediaselectlayer.cpp

  • Committer: Package Import Robot
  • Author(s): Francesco Paolo Lovergine
  • Date: 2012-05-07 15:04:42 UTC
  • mfrom: (5.5.16 experimental)
  • Revision ID: package-import@ubuntu.com-20120507150442-2eks97loeh6rq005
Tags: 1.9.0-1
* Ready for sid, starting transition.
* All symfiles updated to latest builds.
* Added dh_numpy call in debian/rules to depend on numpy ABI.
* Policy bumped to 3.9.3, no changes required.

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ogr/ogrsf_frmts/geomedia/ogrgeomediaselectlayer.cpp
 
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/******************************************************************************
 
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 * $Id: ogrgeomediaselectlayer.cpp 21545 2011-01-22 14:26:31Z rouault $
 
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 *
 
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 * Project:  OpenGIS Simple Features Reference Implementation
 
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 * Purpose:  Implements OGRGeomediaSelectLayer class, layer access to the results
 
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 *           of a SELECT statement executed via ExecuteSQL().
 
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 * Author:   Frank Warmerdam, warmerdam@pobox.com
 
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 *
 
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 ******************************************************************************
 
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 * Copyright (c) 2005, Frank Warmerdam
 
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 *
 
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 * Permission is hereby granted, free of charge, to any person obtaining a
 
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 * copy of this software and associated documentation files (the "Software"),
 
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 * to deal in the Software without restriction, including without limitation
 
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 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 
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 * and/or sell copies of the Software, and to permit persons to whom the
 
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 * Software is furnished to do so, subject to the following conditions:
 
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 *
 
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 * The above copyright notice and this permission notice shall be included
 
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 * in all copies or substantial portions of the Software.
 
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 *
 
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 
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 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 
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 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 
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 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 
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 * DEALINGS IN THE SOFTWARE.
 
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 ****************************************************************************/
 
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#include "cpl_conv.h"
 
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#include "ogr_geomedia.h"
 
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CPL_CVSID("$Id: ogrgeomediaselectlayer.cpp 21545 2011-01-22 14:26:31Z rouault $");
 
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/************************************************************************/
 
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/*                        OGRGeomediaSelectLayer()                      */
 
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/************************************************************************/
 
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OGRGeomediaSelectLayer::OGRGeomediaSelectLayer( OGRGeomediaDataSource *poDSIn,
 
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                                        CPLODBCStatement * poStmtIn )
 
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{
 
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    poDS = poDSIn;
 
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    iNextShapeId = 0;
 
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    nSRSId = -1;
 
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    poFeatureDefn = NULL;
 
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    poStmt = poStmtIn;
 
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    pszBaseStatement = CPLStrdup( poStmtIn->GetCommand() );
 
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    BuildFeatureDefn( "SELECT", poStmt );
 
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}
 
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/************************************************************************/
 
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/*                        ~OGRGeomediaSelectLayer()                     */
 
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/************************************************************************/
 
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OGRGeomediaSelectLayer::~OGRGeomediaSelectLayer()
 
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{
 
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    ClearStatement();
 
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    CPLFree(pszBaseStatement);
 
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}
 
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/************************************************************************/
 
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/*                           ClearStatement()                           */
 
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/************************************************************************/
 
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void OGRGeomediaSelectLayer::ClearStatement()
 
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{
 
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    if( poStmt != NULL )
 
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    {
 
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        delete poStmt;
 
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        poStmt = NULL;
 
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    }
 
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}
 
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/************************************************************************/
 
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/*                            GetStatement()                            */
 
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/************************************************************************/
 
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CPLODBCStatement *OGRGeomediaSelectLayer::GetStatement()
 
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{
 
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    if( poStmt == NULL )
 
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        ResetStatement();
 
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    return poStmt;
 
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}
 
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/************************************************************************/
 
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/*                           ResetStatement()                           */
 
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/************************************************************************/
 
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OGRErr OGRGeomediaSelectLayer::ResetStatement()
 
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{
 
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    ClearStatement();
 
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    iNextShapeId = 0;
 
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    CPLDebug( "ODBC", "Recreating statement." );
 
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    poStmt = new CPLODBCStatement( poDS->GetSession() );
 
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    poStmt->Append( pszBaseStatement );
 
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    if( poStmt->ExecuteSQL() )
 
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        return OGRERR_NONE;
 
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    else
 
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    {
 
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        delete poStmt;
 
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        poStmt = NULL;
 
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        return OGRERR_FAILURE;
 
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    }
 
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}
 
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/************************************************************************/
 
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/*                            ResetReading()                            */
 
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/************************************************************************/
 
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void OGRGeomediaSelectLayer::ResetReading()
 
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{
 
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    if( iNextShapeId != 0 )
 
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        ClearStatement();
 
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    OGRGeomediaLayer::ResetReading();
 
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}
 
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/************************************************************************/
 
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/*                             GetFeature()                             */
 
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/************************************************************************/
 
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OGRFeature *OGRGeomediaSelectLayer::GetFeature( long nFeatureId )
 
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{
 
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    return OGRGeomediaLayer::GetFeature( nFeatureId );
 
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}
 
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/************************************************************************/
 
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/*                           TestCapability()                           */
 
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/************************************************************************/
 
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int OGRGeomediaSelectLayer::TestCapability( const char * pszCap )
 
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{
 
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    return OGRGeomediaLayer::TestCapability( pszCap );
 
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}
 
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/************************************************************************/
 
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/*                          GetFeatureCount()                           */
 
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/*                                                                      */
 
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/*      If a spatial filter is in effect, we turn control over to       */
 
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/*      the generic counter.  Otherwise we return the total count.      */
 
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/*      Eventually we should consider implementing a more efficient     */
 
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/*      way of counting features matching a spatial query.              */
 
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/************************************************************************/
 
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int OGRGeomediaSelectLayer::GetFeatureCount( int bForce )
 
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{
 
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    return OGRGeomediaLayer::GetFeatureCount( bForce );
 
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}