001    /**
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    package org.apache.camel.model.language;
018    
019    import javax.xml.bind.annotation.XmlAccessType;
020    import javax.xml.bind.annotation.XmlAccessorType;
021    import javax.xml.bind.annotation.XmlAttribute;
022    import javax.xml.bind.annotation.XmlRootElement;
023    
024    import org.apache.camel.Expression;
025    import org.apache.camel.Predicate;
026    import org.apache.camel.spi.RouteContext;
027    
028    /**
029     * For XPath expressions and predicates
030     *
031     * @version $Revision: 45033 $
032     */
033    @XmlRootElement(name = "xpath")
034    @XmlAccessorType(XmlAccessType.FIELD)
035    public class XPathExpression extends NamespaceAwareExpression {
036        @XmlAttribute(required = false)
037        private Class resultType;
038    
039        public XPathExpression() {
040        }
041    
042        public XPathExpression(String expression) {
043            super(expression);
044        }
045    
046        public String getLanguage() {
047            return "xpath";
048        }
049    
050        public Class getResultType() {
051            return resultType;
052        }
053    
054        public void setResultType(Class resultType) {
055            this.resultType = resultType;
056        }
057    
058        @Override
059        protected void configureExpression(RouteContext routeContext, Expression expression) {
060            super.configureExpression(routeContext, expression);
061            if (resultType != null) {
062                setProperty(expression, "resultType", resultType);
063            }
064        }
065    
066        @Override
067        protected void configurePredicate(RouteContext routeContext, Predicate predicate) {
068            super.configurePredicate(routeContext, predicate);
069            if (resultType != null) {
070                setProperty(predicate, "resultType", resultType);
071            }
072        }
073    }