if ( columnHandle == null ) { column = createComputedColumn( ); } else { column = (ComputedColumn) columnHandle.getStructure( ); }
column = createComputedColumn( );
	public DataBindingImpl( ComputedColumnHandle columnHandle )	{		if ( columnHandle == null )		{			column = createComputedColumn( );		}		else		{			column = (ComputedColumn) columnHandle.getStructure( );		}	}