IStructureDefn structure = DesignEngine.getMetaDataDictionary( )
IStructureDefn structure = DEUtil.getMetaDataDictionary( )
	public String[] getColumnNames( String[] keys )	{		assert keys != null;		String[] columnNames = new String[keys.length];		for ( int i = 0; i < keys.length; i++ )		{			IStructureDefn structure = DesignEngine.getMetaDataDictionary( )					.getStructure( SortKey.SORT_STRUCT );			columnNames[i] = structure.getMember( keys[i] ).getDisplayName( );		}		return columnNames;	}