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.language;
018    
019    import java.lang.annotation.Documented;
020    import java.lang.annotation.ElementType;
021    import java.lang.annotation.Retention;
022    import java.lang.annotation.RetentionPolicy;
023    import java.lang.annotation.Target;
024    
025    import org.apache.camel.component.bean.XPathAnnotationExpressionFactory;
026    
027    /**
028     * Used to inject an XPath expression into a field, property, method or parameter when using
029     * <a href="http://camel.apache.org/bean-integration.html">Bean Integration</a>.
030     *
031     * @version 
032     */
033    @Retention(RetentionPolicy.RUNTIME)
034    @Documented
035    @Target({ElementType.FIELD, ElementType.METHOD, ElementType.PARAMETER})
036    @LanguageAnnotation(language = "xpath", factory = XPathAnnotationExpressionFactory.class)
037    public @interface XPath {
038        /**
039         * @return The XPath which will be applied
040         */
041        String value();
042    
043        NamespacePrefix[] namespaces() default {
044        @NamespacePrefix(prefix = "soap", uri = "http://www.w3.org/2003/05/soap-envelope"),
045        @NamespacePrefix(prefix = "xsd", uri = "http://www.w3.org/2001/XMLSchema")};
046        
047        Class<?> resultType() default Object.class;
048        
049        /**
050         * @return The name of the header we want to apply the XPath expression to.
051         *  If this is empty then the XPath expression will be applied to the body instead.
052         */
053        String headerName() default "";
054    }