Bug 182895 Support sort on Level attribute.
Currently in OLAP engine we only support sort on level key value. We should go ahead to support sort on level attribute value.
data/org.eclipse.birt.data.tests/test/org/eclipse/birt/data/engine/olap/api/CubeFeaturesTest.java
}
		else if ( fieldIndex == 1 )
		{
			return  DIM0_L2Col[ptr];
		}
		else if ( fieldIndex == 2 )
		{
			return DIM0_L3Col[ptr];
		}
		else if ( fieldIndex == 3 )
		{
			return DIM1_L1Col[ptr];
		}
		else if ( fieldIndex == 4 )
		{
			return new Integer( MEASURE_Col[ptr] );
		}
		return null;
	}
	public boolean next( ) throws BirtException
	{
		ptr++;
		if ( ptr >= MEASURE_Col.length )
		{
			return false;
		}
		return true;
	}
}