org.apache.camel.processor.resequencer.SequenceElementComparator Maven / Gradle / Ivy
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.camel.processor.resequencer;
import java.util.Comparator;
/**
* A strategy for comparing elements of a sequence.
*
* @version
*/
public interface SequenceElementComparator extends Comparator {
/**
* Returns true
if o1
is an immediate predecessor
* of o2
.
*
* @param o1 a sequence element.
* @param o2 a sequence element.
* @return true if its an immediate predecessor
*/
boolean predecessor(E o1, E o2);
/**
* Returns true
if o1
is an immediate successor
* of o2
.
*
* @param o1 a sequence element.
* @param o2 a sequence element.
* @return true if its an immediate successor
*/
boolean successor(E o1, E o2);
/**
* Returns true if the o1
can be used in this comparator.
*
* @param o1 a sequence element
* @return true if its usable for this comparator
*/
boolean isValid(E o1);
}