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JPAエンティティのライフサイクルをテキストで書いてみた

Posted at

自由にコピペしてください。

                    ○      ◎
                new |      ^ GC
                    v      |
                   +---------+
                   | メモリ   | <--------------+
                   +---------+                |
   find/JPQL             |                    |
○----------------------+ |                    |
                       | | persist            |
                       v v                    |
+---------+  merge   +---------+  remove   +---------+
|         | -------> |         | --------> |         |
| 分離状態 | <------- | 管理状態 |           | 削除済み |
|         |  clear   |         | <-+       |         |
+---------+  detach  +---------+   |       +---------+
                       ^    |      |
                       |    +------+
                       |      refresh
                       |      setter
                       v
                    +-------------+
                    +-------------+
                    | データベース |
                    +-------------+

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