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Java Source Code
/*
* Copyright 2014 the original author or authors.
*/*fromwww.java2s.com*/
* Licensed 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.springframework.sync.diffsync;
/**
* Strategy interface for determining if two objects are equivalent.
*
* <p>During the course of a patch, a resource entity may have its properties change, thus rendering it
* unequal to another unchanged instance of the same resource entity. Yet, for the purposes of the
* differential synchronization algorithm, it's important to know if two entity objects are equivalent.
* That is, it's important to know if two objects are considered to represent the same resource, even
* if their properties are different.</p>
*
* @author Craig Walls
*/publicinterface Equivalency {
/**
* Determines if two objects are considered equivalent (not necessarily equal).
* @param o1 object to compare
* @param o2 object to compare
* @return true if the two objects are considered equivalent, false otherwise.
*/boolean isEquivalent(Object o1, Object o2);
}