Bug 151788 Provide additional ODA runtime hints to the ODA consumer
Some ODA runtime drivers are not able to obtain sufficient metadata on its parameters and result set column. Such metadata is thus needed to be collected at design time, for use by the BIRT ODA consumer. For example, the native data type of a parameter and column is often needed, but is not currently available to the odaconsumer in the Data Engine API runtime hints. This enhancement involves adding the native data type to the Data Engine API, and passing through its value from the ROM Model in report design to the ODA consumer.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/odaconsumer/Driver.java
/**
	 * Returns the manifest that should be passed to 
	 * the ODA consumer helper to handle, 
	 * either a DTP ODA driver or the DTP-to-BIRT adapter.
	 */ 
	ExtensionManifest getExtensionConfig() throws DataException
	{
		if ( m_adapterConfig != null )
	        return m_adapterConfig;
		
		
		ExtensionManifest driverManifest = getDriverExtensionConfig();
	    assert( driverManifest != null );	
		
	    if ( m_adapterConfig != null )	
	        return m_adapterConfig;
	    return driverManifest;	
	}
	
	/**
	 * Returns the manifest of a DTP ODA driver, or that of
	 * a BIRT ODA driver.
	 * @throws DataException
	 */	 
	ExtensionManifest getDriverExtensionConfig() throws DataException
	{
		if ( m_driverConfig != null )
	        return m_driverConfig;