Java JPA @ElementCollection List 指定连接列名
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JPA @ElementCollection List specify join column name
提问by jeff
I have the following entity:
我有以下实体：
@Entity
public class Shirt implements Serializable {
@Id
@Size(max=9)
private String id;
@ElementCollection
@CollectionTable(name="SHIRT_COLORS")
@Column(name="color")
private List<String> colors = new ArrayList<String>();
...
The collections table created when I set hibernate to autocreate is
当我将休眠设置为自动创建时创建的集合表是
SHIRT_COLORS
shirt_id
color
How do I annotate my Entity so that the join column isn't a concatenation of the entity and pk so that the the table created is:
如何注释我的实体，以便连接列不是实体和 pk 的串联，以便创建的表是：
SHIRT_COLORS
id
color
I've tried @JoinColumn but that didn't work. In actuality, the SHIRT_COLORS table in production is managed outside of the app and the column names are already defined.
我试过@JoinColumn 但这没有用。实际上，生产中的 SHIRT_COLORS 表是在应用程序之外管理的，并且已经定义了列名。
采纳答案by wypieprz
Try this:
尝试这个：
@Entity
public class Shirt implements Serializable {
@Id
@Size(max=9)
private String id;
@ElementCollection
@CollectionTable(
name = "SHIRT_COLORS",
joinColumns=@JoinColumn(name = "id", referencedColumnName = "id")
)
@Column(name="color")
private List<String> colors = new ArrayList<String>();
...
