总结其他批注的Java批注

Question

我想为一个JPA实体字段创建一个注释，它总结了一些其他注释。这是我想要创建的注释：

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

import javax.persistence.AttributeOverride;
import javax.persistence.AttributeOverrides;
import javax.persistence.Column;
import javax.persistence.Embedded;

@Target(value = {ElementType.FIELD, ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
@Embedded
@AttributeOverrides({
        @AttributeOverride(name = "createdAt", column = @Column(name = "created_at", columnDefinition = "TIMESTAMP WITH TIME ZONE")),
        @AttributeOverride(name = "lastChangedAt", column = @Column(name = "last_changed_at", columnDefinition = "TIMESTAMP WITH TIME ZONE")),
        @AttributeOverride(name = "lastChangedBy", column = @Column(name = "last_changed_by")),
        @AttributeOverride(name = "createdBy", column = @Column(name = "created_by")) })
public @interface EmbeddAdministrativeData {

}

但这在@Embedded处产生了语法错误，因为@Embedded的目标是Field和Method。如果我删除@Embedded并单独使用它，@EmbeddAdministrativeData注释将被忽略。这样做的正确方法是什么？

Answer 1

根据this link，JPA2.2支持“元注释”。然后归结为您的JPA提供程序是否支持JPA 2.2 (例如，我使用的那个，这些文档就是这样做的)。