/*******************************************************************************
 * Copyright (c) 2005, 2014 springside.github.io
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 *******************************************************************************/
package com.yihu.wlyy.entity;

import java.io.Serializable;

import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.MappedSuperclass;

/**
 * 统一定义id的entity基类.
 * 
 * 基类统一定义id的属性名称、数据类型、列名映射及生成策略.
 * Oracle需要每个Entity独立定义id的SEQUCENCE时，不继承于本类而改为实现一个Idable的接口。
 * 
 * @author calvin
 */
// JPA 基类的标识
@MappedSuperclass
public abstract class IdEntity implements Serializable {
	private static final long serialVersionUID = 3673803562328635206L;

	protected Long id;  // 非业务主键

	@Id
	@GeneratedValue(strategy = GenerationType.IDENTITY)
	public Long getId() {
		return id;
	}

	public void setId(Long id) {
		this.id = id;
	}
}
