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;
018
019 import javax.xml.bind.annotation.XmlRootElement;
020
021 import org.apache.camel.Predicate;
022 import org.apache.camel.builder.ExpressionClause;
023 import org.apache.camel.model.language.ExpressionDefinition;
024 import org.apache.camel.processor.FilterProcessor;
025 import org.apache.camel.spi.RouteContext;
026
027 /**
028 * Represents an XML <when/> element
029 *
030 * @version $Revision: 750806 $
031 */
032 @XmlRootElement(name = "when")
033 public class WhenDefinition extends ExpressionNode {
034
035 public WhenDefinition() {
036 }
037
038 public WhenDefinition(Predicate predicate) {
039 super(predicate);
040 }
041
042 public WhenDefinition(ExpressionDefinition expression) {
043 super(expression);
044 }
045
046 @Override
047 public String toString() {
048 return "When[" + getExpression() + " -> " + getOutputs() + "]";
049 }
050
051 @Override
052 public String getShortName() {
053 return "when";
054 }
055
056 @Override
057 public FilterProcessor createProcessor(RouteContext routeContext) throws Exception {
058 return createFilterProcessor(routeContext);
059 }
060
061 // Fluent API
062 //-------------------------------------------------------------------------
063 /**
064 * Set the expression that WhenType will use
065 * @return the builder
066 */
067 public ExpressionClause<WhenDefinition> expression() {
068 return ExpressionClause.createAndSetExpression(this);
069 }
070 }