Hibernate annotation, JPA如何映射多个属性为unique
例如一个表如下:
CREATE TABLE MyObject(
ID BIGINT GENERATED BY DEFAULT AS IDENTITY NOT NULL PRIMARY KEY,
OBJECT_CLASS BIGINT NOT NULL,
OBJECT_IDENTITY BIGINT NOT NULL,
CONSTRAINT UNIQUE_UK_3 UNIQUE(OBJECT_CLASS,OBJECT_IDENTITY)
);
用domain class 如何表示这个表呢?谢谢。
注意:要将object_class和object_identity两个字段联合成uique.