英文:
How to make generic type of specifically annotated class?
问题
我需要将一个接口泛型化，该接口是针对带有特定注释的类进行注释的，例如具有以下实体类
@Entity
@Audited
class Record {
private Long id;
private String something;
private String somethingElse;
}
该类使用Hibernate Envers进行审计，我想提供一个服务类，该类获取一些修订数据。类似以下方式：
public interface AuditRecordService<E extends Audited> {
//
}
我知道我可以修改Record类以扩展一个抽象类，类似这样：
@Entity
@Audited
class Record extends RevisionedEntity {
...
这对我有效，但我想避免不必要的扩展，因为它已经使用了@Audited注释。是否可能将此注释重用为泛型类型？
英文:
I need to generify an interface to a class that is annotated to a specific annotation, say having the following entity class
@Entity
@Audited
class Record {
private Long id;
private String something;
private String somethingElse;
}
which is audited with Hibernate Envers, I want to provide a service class that obtains some revision data. With something like
public interface AuditRecordService<E extends Audited> {
//
}
I know I can modify the Record class to extend an abstract class, something like:
@Entity
@Audited
class Record extends RevisionedEntity {
...
This works for me, but I want to avoid unnecessary extension, since it's already annotated with @Audited. Is it possible to reuse this annotation as a generic type?
答案1
得分: 0
Audited 是一个注解，而不是一种类型。注解不能被扩展，因此 AuditRecordService<E extends Audited> 的唯一可能实现将是 AuditRecordService<Audited>，这将毫无用处。
英文:
Audited is an annotation, not a type. Annotations cannot be extended, so the only possible implementation of AuditRecordService<E extends Audited> would be AuditRecordService<Audited>, which would be pretty useless.
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