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com.jaxio.jpa.querybyexample.Identifiable Maven / Gradle / Ivy
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This API allows you to construct Query By Example using the JPA 2 Criteria API.
/*
* 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();
}