GAE/J
こんなコード書いてたんですが、 @SuppressWarnings("unchecked") public List<Hoge> select(HogeCondition condition) throws IOException { Preconditions.checkNotNull(condition, "condition"); PersistenceManager pm = Persistent.createManager(); try { Qu</hoge>…
Hogeの一覧をSingleTransactionでmakePersistentAll*1しようとすると下記の例外。 java.lang.IllegalArgumentException: can't operate on multiple entity groups in a single transaction. found both Element { type: "Hoge id: 1 } and Element { type: …