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.processor.resequencer;
018
019import org.apache.camel.Exchange;
020import org.apache.camel.Expression;
021
022/**
023 * A {@link SequenceElementComparator} that compares {@link Exchange}s based on
024 * the result of an expression evaluation.
025 * 
026 * @version 
027 */
028public interface ExpressionResultComparator extends SequenceElementComparator<Exchange> {
029
030    /**
031     * Set the expression sed for comparing {@link Exchange}s.
032     * 
033     * @param expression the expression
034     */
035    void setExpression(Expression expression);
036
037}