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.processor.resequencer;
018
019 import java.util.List;
020
021 import org.apache.camel.Exchange;
022 import org.apache.camel.Expression;
023
024 /**
025 * A {@link SequenceElementComparator} that compares {@link Exchange}s based on
026 * the result of an expression evaluation.
027 *
028 * @author Martin Krasser
029 *
030 * @version $Revision: 709613 $
031 */
032 public interface ExpressionResultComparator extends SequenceElementComparator<Exchange> {
033
034 /**
035 * Sets the list expressions used for comparing {@link Exchange}s.
036 *
037 * @param expressions a list of {@link Expression} objects.
038 */
039 void setExpressions(List<Expression> expressions);
040
041 }