001 /** 002 * Copyright 2005 Hiram Chirino 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 **/ 017 package org.activemq.filter; 018 019 import javax.jms.JMSException; 020 import javax.jms.Message; 021 022 /** 023 * Used to evaluate an XQuery Expression in a JMS selector. 024 */ 025 public final class XQueryExpression implements BooleanExpression { 026 private final String xpath; 027 028 XQueryExpression(String xpath) { 029 super(); 030 this.xpath = xpath; 031 } 032 033 public Object evaluate(Message message) throws JMSException { 034 return Boolean.FALSE; 035 } 036 037 public String toString() { 038 return "XQUERY "+ConstantExpression.encodeString(xpath); 039 } 040 }