Bug 109350 output parameter should display in data set dialog.
details output parameter should display in edit data set dialog. steps to reproduce: when call the stored procedure from Oracle database, the query result has been stored in output parameter as an object. While in query result page, there is no data returned actual result: output parameter should display in edit data set dialog.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/odaconsumer/ResultSet.java
* 			no more rows available or if max rows limit has been reached.
	 * @throws DataException	if data source error occurs.
	 */
	public IResultObject fetch( ) throws DataException
	{
	    final String methodName = "fetch";
		try
		{
			if( ! m_resultSet.next( ) )
				return null;
		}
		catch( OdaException ex )
		{
		    sm_logger.logp( Level.SEVERE, sm_className, methodName,
		            		"Cannot fetch next row.", ex );
			throw new DataException( ResourceConstants.CANNOT_FETCH_NEXT_ROW, ex );
		}
		catch( UnsupportedOperationException ex )
		{
		    sm_logger.logp( Level.SEVERE, sm_className, methodName,
		            		"Cannot fetch next row.", ex );
			throw new DataException( ResourceConstants.CANNOT_FETCH_NEXT_ROW, ex );
		}
		int columnCount = m_resultClass.getFieldCount();
		int[] driverPositions = 
			( (ResultClass) m_resultClass ).getFieldDriverPositions();
		assert( columnCount == driverPositions.length );
		
		Object[] fields = new Object[ columnCount ];