Bug 128495 Provides BIRT Adapter of DTP Oda Design objects to/from ROM ODA Data Handles
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/odaconsumer/Driver.java
ExtensionManifest getDriverExtensionConfig() throws DataException
	{
		if ( m_driverConfig != null )
	        return m_driverConfig;
		
		
	    
	    findDataSourceExtensionConfig();
	    
	    assert( m_driverConfig != null );	
	    return m_driverConfig;
	}
	
	IDriver getDriverHelper() throws DataException
	{	
		final String methodName = "getDriverHelper";
		if( m_driverHelper != null )
            return m_driverHelper;
        
		try
		{		
            m_driverHelper = new OdaDriver( getExtensionConfig() );
            return m_driverHelper;
		}
		catch( OdaException ex )
		{
			sm_logger.logp( Level.SEVERE, sm_className, methodName,
					"Cannot get ODA data source driver helper.", ex );
			throw new DataException( ResourceConstants.INIT_ENTRY_CANNOT_BE_FOUND, ex, 
                                     new Object[] { m_dataSourceDriverId } );