C++ (Cpp) OGRVFKDataSource Examples

Example #1

File: ogrvfkdriver.cpp Project: Mofangbao/node-gdal

/*
  \brief Open existing data source
  
  \param pszFilename data source name to be open
  \param pUpdate non-zero for update, zero for read-only

  \return pointer to OGRDataSource instance
  \return NULL on failure
*/
OGRDataSource *OGRVFKDriver::Open(const char * pszFilename,
                                  int bUpdate)
{
    OGRVFKDataSource *poDS;

    if (bUpdate)
        return NULL;
    
    poDS = new OGRVFKDataSource();

    if(!poDS->Open(pszFilename, TRUE) || poDS->GetLayerCount() == 0) {
        delete poDS;
        return NULL;
    }
    else
        return poDS;
}

Example #2

File: ogrvfkdriver.cpp Project: OSGeo/gdal

/*
  \brief Open existing data source
  \return NULL on failure
*/
static GDALDataset *OGRVFKDriverOpen(GDALOpenInfo* poOpenInfo)
{
    if( poOpenInfo->eAccess == GA_Update ||
        !OGRVFKDriverIdentify(poOpenInfo) )
        return nullptr;

    OGRVFKDataSource *poDS = new OGRVFKDataSource();

    if( !poDS->Open(poOpenInfo) ||
        poDS->GetLayerCount() == 0 )
    {
        delete poDS;
        return nullptr;
    }
    else
        return poDS;
}

Example #3

File: ogrvfkdriver.cpp Project: ctu-yfsg/2016-a-gdal-vfk-pg

/*
  \brief Open existing data source
  \return NULL on failure
*/
static GDALDataset *OGRVFKDriverOpen(GDALOpenInfo* poOpenInfo)
{
    OGRVFKDataSource *poDS;

    if( poOpenInfo->eAccess == GA_Update ||
        !OGRVFKDriverIdentify(poOpenInfo) )
        return NULL;

    poDS = new OGRVFKDataSource();

    if(!poDS->Open(poOpenInfo->pszFilename, TRUE) || poDS->GetLayerCount() == 0) {
        delete poDS;
        return NULL;
    }
    else
        return poDS;
}