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 */
017package org.apache.camel.model.language;
018
019import java.util.Map;
020
021import javax.xml.bind.annotation.XmlAccessType;
022import javax.xml.bind.annotation.XmlAccessorType;
023import javax.xml.bind.annotation.XmlTransient;
024
025import org.apache.camel.spi.NamespaceAware;
026
027/**
028 * A useful base class for any expression which may be namespace or XML content
029 * aware such as {@link XPathExpression} or {@link XQueryExpression}
030 */
031@XmlAccessorType(XmlAccessType.FIELD)
032public abstract class NamespaceAwareExpression extends ExpressionDefinition implements NamespaceAware {
033    @XmlTransient
034    private Map<String, String> namespaces;
035
036    public NamespaceAwareExpression() {
037    }
038
039    public NamespaceAwareExpression(String expression) {
040        super(expression);
041    }
042
043    @Override
044    public Map<String, String> getNamespaces() {
045        return namespaces;
046    }
047
048    /**
049     * Injects the XML Namespaces of prefix -> uri mappings
050     *
051     * @param namespaces the XML namespaces with the key of prefixes and the
052     *            value the URIs
053     */
054    @Override
055    public void setNamespaces(Map<String, String> namespaces) {
056        this.namespaces = namespaces;
057    }
058
059}