Hibernate @OneToMany等注解设置查询过滤条件等

1、如实体PdOrg对象中有users对象，数据库user表有字段DEL_FLAG(0：删除；1：未删除)：

private List<User> users= new ArrayList<User>();

生成get、set方法： 

@OneToMany(fetch=FetchType.LAZY, mappedBy="user")
@BatchSize(size=10)
@Where(clause="DEL_FLAG=1")
@OrderBy(clause="CREATED_DATE asc")
public List<User> getUsers() {
　　return this.user;
}

public void setUsers(List<User> user) {
　　this.user= user;
}

 

@BatchSize(size=10) //缓存数据大小：10条数据

@Where(clause="DEL_FLAG=1") //代表只取未删除的数据；

@OrderBy(clause="CREATED_DATE asc") //代表按创建时间正序排列

 

2、用一个列关联多个实体属性，比如举报维权，举报的对象可能是用户，悬赏，商品，订单

//举报对象(用户)

 @OneToOne(cascade = { CascadeType. REFRESH }, fetch = FetchType.EAGER )

 @JoinColumn(name = "gid", insertable = false, updatable = false)

  @NotFound(action=NotFoundAction. IGNORE)

  private UserInfo reporteder;

     

  //举报对象(悬赏)

  @OneToOne(cascade = { CascadeType. REFRESH }, fetch = FetchType.EAGER )

  @JoinColumn(name = "gid", insertable = false, updatable = false)

  @NotFound(action=NotFoundAction. IGNORE)

   private Reward reward;

     

   //举报对象(商品)

   @OneToOne(cascade = { CascadeType. REFRESH }, fetch = FetchType.EAGER )

   @JoinColumn(name = "gid", insertable = false, updatable = false)

   @NotFound(action=NotFoundAction. IGNORE)

    private Product product;

     

     //举报对象(订单)

     @OneToOne(cascade = { CascadeType. REFRESH }, fetch = FetchType.EAGER )

     @JoinColumn(name = "gid", insertable = false, updatable = false)

     @NotFound(action=NotFoundAction. IGNORE)

     private Order order;