JDO-GAE即使在注释IdGeneratorStrategy.IDENTITY时也会创建密钥

Question

我有以下代码，

public class UserAccount {

  @PrimaryKey
  @Persistent
  private Long id;  
  ....

所以，通过代码创建主键，但是当我通过

查看数据存储区查看器时

http://localhost:8888/_ah/admin , I see key got populated via datastore (some encoded key). Is this an expected behavior ?. The problem however is when I try to connect my child objects with the parent objects. Thanks alot. 

Answer 1

是的，绝对是预期的。有关详细信息，请查看JDO Keys