001/* 002// $Id: Quax.java 482 2012-01-05 23:27:27Z jhyde $ 003// 004// Licensed to Julian Hyde under one or more contributor license 005// agreements. See the NOTICE file distributed with this work for 006// additional information regarding copyright ownership. 007// 008// Julian Hyde licenses this file to you under the Apache License, 009// Version 2.0 (the "License"); you may not use this file except in 010// compliance with the License. You may obtain a copy of the License at: 011// 012// http://www.apache.org/licenses/LICENSE-2.0 013// 014// Unless required by applicable law or agreed to in writing, software 015// distributed under the License is distributed on an "AS IS" BASIS, 016// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 017// See the License for the specific language governing permissions and 018// limitations under the License. 019*/ 020package org.olap4j.transform; 021 022import org.olap4j.CellSetAxis; 023import org.olap4j.Position; 024import org.olap4j.metadata.Member; 025 026/** 027 * Representation of member expressions on a query axis, derived from 028 * CellSetAxis objects. 029 * 030 * <p>Quaxes are used by MDX axis query transforms, to construct and use 031 * an internal tree-like representation of positions and members from the 032 * result CellSetAxis objects of a previous MDX query. This is needed 033 * for OLAP navigation operators like drill-down on a position. 034 * 035 * <p>Inspired from the JPivot Quax class. 036 * 037 * <p>NOTE: not exactly sure how to implement this, to be completed... 038 * 039 * @author etdub 040 * @version $Id: Quax.java 482 2012-01-05 23:27:27Z jhyde $ 041 * @since Aug 7, 2008 042 */ 043public class Quax { 044 private final CellSetAxis cellSetAxis; 045 046 private TreeNode<Member> memberTree; 047 048 public Quax(CellSetAxis cellSetAxis) { 049 this.cellSetAxis = cellSetAxis; 050 051 for (Position p : cellSetAxis.getPositions()) { 052 p.getMembers(); 053 } 054 } 055} 056 057// End Quax.java