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 javax.xml.bind.annotation.XmlAccessType;
020import javax.xml.bind.annotation.XmlAccessorType;
021import javax.xml.bind.annotation.XmlRootElement;
022
023import org.apache.camel.spi.Metadata;
024
025/**
026 * Reference to an existing Camel expression or predicate, which is looked up
027 * from the Camel registry.
028 */
029@Metadata(firstVersion = "2.8.0", label = "language,core", title = "Ref")
030@XmlRootElement(name = "ref")
031@XmlAccessorType(XmlAccessType.FIELD)
032public class RefExpression extends ExpressionDefinition {
033
034    public RefExpression() {
035    }
036
037    public RefExpression(String ref) {
038        super(ref);
039    }
040
041    @Override
042    public String getLanguage() {
043        return "ref";
044    }
045
046}