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/***********************************************************************************************************************
 *
 * Copyright (C) 2010-2013 by the Stratosphere project (http://stratosphere.eu)
 *
 * 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 eu.stratosphere.core.testing;

/**
 * Represents the external definition of {@link Object#equals(Object)}. Equaler is needed when the class of
 * objects does not have an appropriate {@link Object#equals(Object)} definition.
 * 
 * @param 
 *        the type
 */
public interface Equaler {
	/**
	 * Returns true, if both objects are equal; false, otherwise.

	 * This method has similar semantic to object1.equals(object2).
	 * 
	 * @param object1
	 *        the first object
	 * @param object2
	 *        the second object
	 * @return true, if both objects are equal; false, otherwise.
	 */
	public boolean equal(T object1, T object2);
}