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/*
 * Copyright 2015 JAXIO http://www.jaxio.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 com.jaxio.jpa.querybyexample;

import java.io.Serializable;

/**
 * By making entities implement this interface we can easily retrieve from the
 * {@link com.jaxio.jpa.querybyexample.GenericRepository} the identifier property of the entity.
 */
public interface Identifiable {

    /**
     * @return the primary key
     */
    PK getId();

    /**
     * Sets the primary key
     *
     * @param id primary key
     */
    void setId(PK id);

    /**
     * Helper method to know whether the primary key is set or not.
     *
     * @return true if the primary key is set, false otherwise
     */
    boolean isIdSet();
}




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