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 }