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Viewing changes to ogr/ogrsf_frmts/sqlite/ogrsqliteselectlayer.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/sqlite/ogrsqliteselectlayer.cpp
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/******************************************************************************
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 * $Id: ogrsqliteselectlayer.cpp 10645 2007-01-18 02:22:39Z warmerdam $
 
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 * $Id: ogrsqliteselectlayer.cpp 19800 2010-06-04 21:38:03Z rouault $
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 *
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 * Project:  OpenGIS Simple Features Reference Implementation
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 * Purpose:  Implements OGRSQLiteSelectLayer class, layer access to the results
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#include "cpl_conv.h"
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#include "ogr_sqlite.h"
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CPL_CVSID("$Id: ogrsqliteselectlayer.cpp 10645 2007-01-18 02:22:39Z warmerdam $");
 
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CPL_CVSID("$Id: ogrsqliteselectlayer.cpp 19800 2010-06-04 21:38:03Z rouault $");
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/************************************************************************/
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/*                        OGRSQLiteSelectLayer()                        */
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/************************************************************************/
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OGRSQLiteSelectLayer::OGRSQLiteSelectLayer( OGRSQLiteDataSource *poDSIn,
 
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                                            CPLString osSQL,
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                                            sqlite3_stmt *hStmtIn )
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{
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    nSRSId = -1;
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    poFeatureDefn = NULL;
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    hStmt = hStmtIn;
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    BuildFeatureDefn( "SELECT", hStmt );
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    // Reset so the next _step() will get the first record.
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    sqlite3_reset( hStmt );
 
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    BuildFeatureDefn( "SELECT", hStmtIn );
 
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    sqlite3_finalize( hStmtIn );
 
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    this->osSQL = osSQL;
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}
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/************************************************************************/
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OGRSQLiteSelectLayer::~OGRSQLiteSelectLayer()
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{
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    sqlite3_finalize( hStmt );
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    hStmt = NULL;
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}
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/************************************************************************/
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/*                           ClearStatement()                           */
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/*                                                                      */
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/*      Called when GetNextRawFeature() runs out of rows.               */
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/************************************************************************/
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void OGRSQLiteSelectLayer::ClearStatement()
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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 OGRSQLiteSelectLayer::ResetReading()
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{
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    sqlite3_reset( hStmt );
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    OGRSQLiteLayer::ResetReading();
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}
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/************************************************************************/
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/*                             GetFeature()                             */
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/************************************************************************/
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OGRFeature *OGRSQLiteSelectLayer::GetFeature( long nFeatureId )
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{
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    return OGRSQLiteLayer::GetFeature( nFeatureId );
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}
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/************************************************************************/
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/*                           TestCapability()                           */
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/************************************************************************/
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int OGRSQLiteSelectLayer::TestCapability( const char * pszCap )
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{
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    return OGRSQLiteLayer::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 OGRSQLiteSelectLayer::GetFeatureCount( int bForce )
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{
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    return OGRSQLiteLayer::GetFeatureCount( bForce );
 
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}
 
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/************************************************************************/
 
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/*                           ResetStatement()                           */
 
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/************************************************************************/
 
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OGRErr OGRSQLiteSelectLayer::ResetStatement()
 
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{
 
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    int rc;
 
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    ClearStatement();
 
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    iNextShapeId = 0;
 
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    rc = sqlite3_prepare( poDS->GetDB(), osSQL, osSQL.size(),
 
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                          &hStmt, NULL );
 
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    if( rc == SQLITE_OK )
 
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    {
 
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        return OGRERR_NONE;
 
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    }
 
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    else
 
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    {
 
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        CPLError( CE_Failure, CPLE_AppDefined, 
 
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                  "In ResetStatement(): sqlite3_prepare(%s):\n  %s", 
 
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                  osSQL.c_str(), sqlite3_errmsg(poDS->GetDB()) );
 
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        hStmt = NULL;
 
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        return OGRERR_FAILURE;
 
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    }
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}