package org.springside.examples.miniservice.entity;
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.
* 子类可重载getId()函数重定义id的列名映射和生成策略.
*
* @author calvin
*/
//JPA 基类标识
@MappedSuperclass
public abstract class IdEntity {
protected Long id;
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
//@GeneratedValue(strategy = GenerationType.SEQUENCE)
//@GeneratedValue(generator = "system-uuid")
//@GenericGenerator(name = "system-uuid", strategy = "uuid")
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
}