用Hibernate映射数组 [英] Mapping array with Hibernate

问题描述

  public class MyClass {
 private Long id; 
私人字符串名称; 
 private int [] values; 
 ... 
} 
  

我使用PostgreSQL和列类型n表是整数[]
如何映射数组

。我总是使用集合。所以，我稍微改变了你的课程：

  public class MyClass {
 private Long id; 
私人字符串名称; 
私人列表<整数>值; 
 
 @Id 
 //只有当你的id真的是自动生成的时候，这才是真正的
 @GeneratedValue（strategy = GenerationType.AUTO）
 public Long getId（）{
返回ID; 
} 
 
 @OneToMany（cascade = CascadeType.ALL，fetch = FetchType.LAZY）
 public List< Integer> getValues（）{
返回值; 
} 
 ... 
  

Can you please help me to map th class Hbernate?

public class MyClass{
    private Long id;
    private String name;
    private int[] values;
    ...
}

I'm using PostgreSQL and the column type n the table is integer[] How my array should be mapped?

解决方案

I have never mapped arrays to hibernate. I always use collections. So, I have slightly changed you class:

public class MyClass{
    private Long id;
    private String name;
    private List<Integer> values;

    @Id
    // this is only if your id is really auto generated
    @GeneratedValue(strategy=GenerationType.AUTO) 
    public Long getId() {
        return id;
    }

    @OneToMany(cascade=CascadeType.ALL, fetch=FetchType.LAZY)
    public List<Integer> getValues() {
        return values;
    }   
    ...

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