001 /* 002 // $Id: MemberNode.java 229 2009-05-08 19:11:29Z jhyde $ 003 // This software is subject to the terms of the Eclipse Public License v1.0 004 // Agreement, available at the following URL: 005 // http://www.eclipse.org/legal/epl-v10.html. 006 // Copyright (C) 2007-2008 Julian Hyde 007 // All Rights Reserved. 008 // You must accept the terms of that agreement to use this software. 009 */ 010 package org.olap4j.mdx; 011 012 import org.olap4j.type.Type; 013 import org.olap4j.type.MemberType; 014 import org.olap4j.metadata.Member; 015 016 /** 017 * Usage of a {@link org.olap4j.metadata.Member} as an expression in an MDX 018 * parse tree. 019 * 020 * @author jhyde 021 * @version $Id: MemberNode.java 229 2009-05-08 19:11:29Z jhyde $ 022 * @since Jun 4, 2007 023 */ 024 public class MemberNode implements ParseTreeNode { 025 private final ParseRegion region; 026 private final Member member; 027 028 /** 029 * Creates a MemberNode. 030 * 031 * @param region Region of source code 032 * @param member Member which is used in the expression 033 */ 034 public MemberNode( 035 ParseRegion region, 036 Member member) 037 { 038 this.region = region; 039 this.member = member; 040 } 041 042 public ParseRegion getRegion() { 043 return region; 044 } 045 046 /** 047 * Returns the Member used in this expression. 048 * 049 * @return member used in this expression 050 */ 051 public Member getMember() { 052 return member; 053 } 054 055 public <T> T accept(ParseTreeVisitor<T> visitor) { 056 return visitor.visit(this); 057 } 058 059 public Type getType() { 060 return new MemberType( 061 member.getDimension(), 062 member.getHierarchy(), 063 member.getLevel(), 064 member); 065 } 066 067 public void unparse(ParseTreeWriter writer) { 068 writer.getPrintWriter().print(member.getUniqueName()); 069 } 070 071 public String toString() { 072 return member.getUniqueName(); 073 } 074 075 public MemberNode deepCopy() { 076 // MemberNode is immutable 077 return this; 078 } 079 } 080 081 // End MemberNode.java