001/* 002// This software is subject to the terms of the Eclipse Public License v1.0 003// Agreement, available at the following URL: 004// http://www.eclipse.org/legal/epl-v10.html. 005// You must accept the terms of that agreement to use this software. 006// 007// Copyright (C) 2004-2005 TONBELLER AG 008// Copyright (C) 2006-2012 Pentaho and others 009// All Rights Reserved. 010*/ 011package mondrian.rolap; 012 013import mondrian.olap.Evaluator; 014import mondrian.rolap.aggmatcher.AggStar; 015import mondrian.rolap.sql.*; 016 017/** 018 * TupleConstraint which does not restrict the result. 019 */ 020public class DefaultTupleConstraint implements TupleConstraint { 021 022 private static final TupleConstraint instance = 023 new DefaultTupleConstraint(); 024 025 protected DefaultTupleConstraint() { 026 } 027 028 public void addConstraint( 029 SqlQuery sqlQuery, 030 RolapCube baseCube, 031 AggStar aggStar) 032 { 033 } 034 035 public void addLevelConstraint( 036 SqlQuery sqlQuery, 037 RolapCube baseCube, 038 AggStar aggStar, 039 RolapLevel level) 040 { 041 } 042 043 public MemberChildrenConstraint getMemberChildrenConstraint( 044 RolapMember parent) 045 { 046 return DefaultMemberChildrenConstraint.instance(); 047 } 048 049 public String toString() { 050 return "DefaultTupleConstraint"; 051 } 052 053 public Object getCacheKey() { 054 // we have no state, so all instances are equal 055 return this; 056 } 057 058 public static TupleConstraint instance() { 059 return instance; 060 } 061 062 public Evaluator getEvaluator() { 063 return null; 064 } 065} 066 067// End DefaultTupleConstraint.java