/*
* Copyright 2012 the original author or authors.
*
* 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.hateoas;
import java.io.Serializable;
/**
* Interface to mark objects that are identifiable by an ID of any type.
*
* @author Oliver Gierke
*/
public interface Identifiable<ID extends Serializable> {
/**
* Returns the id identifying the object.
*
* @return the identifier or {@literal null} if not available.
*/
ID getId();
}