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/PreparedStatement.java
parameterHintsList.add( newParameterHint );
		
		sm_logger.exiting( sm_className, methodName );
	}
	
	/**
	 * Sets the names of all projected columns. If this method is not called, 
	 * then all columns in the runtime metadata are projected. The specified 
	 * projected names can be either a column name or column alias.
	 * @param projectedNames	the projected column names.
	 * @throws DataException	if data source error occurs.
	 */
	public void setColumnsProjection( String[] projectedNames ) 
		throws DataException
	{
		String methodName = "setColumnsProjection";		
		sm_logger.entering( sm_className, methodName, projectedNames );
		
		resetCurrentMetaData();
		getProjectedColumns().setProjectedNames( projectedNames );
		
		sm_logger.exiting( sm_className, methodName );
	}
	
	/**
	 * Sets the names of all projected columns for the specified result set. If 
	 * this method is not called, then all columns in the specified result set 
	 * metadata are projected.  The specified projected names can be either a