6

我在应用引擎 java jdo 中有一个跨组事务。

它在本地开发应用引擎服务器上运行良好。

但是,从单元测试中,我得到了一个java.lang.IllegalArgumentException: transactions on multiple entity groups only allowed in High Replication applications.

是否可以使用 LocalServiceTestHelper 模拟高复制应用程序?

我正在使用 1.6.6。

这是我的课程,您可以按原样运行它来重现:

public class Ds2Test {

    private final LocalServiceTestHelper helper =
            new LocalServiceTestHelper(new LocalDatastoreServiceTestConfig());

    private static final PersistenceManagerFactory pmfXgInstance =
            JDOHelper.getPersistenceManagerFactory("xg-transactions");

        @Before
        public void setUp() {
            helper.setUp();
        }

        @After
        public void tearDown() {
            helper.tearDown();
        }

        @Test
        public void testXgTransaction() throws Exception {
            PersistenceManager xgPm = pmfXgInstance.getPersistenceManager();
            Transaction xgTx = xgPm.currentTransaction();
            xgTx.begin();

            xgTx.commit();
            xgPm.close();
        }
}

这是 jdoconfig.xml 中的配置:

   <persistence-manager-factory name="xg-transactions">
       <property name="javax.jdo.PersistenceManagerFactoryClass"
           value="org.datanucleus.store.appengine.jdo.DatastoreJDOPersistenceManagerFactory"/>
       <property name="javax.jdo.option.ConnectionURL" value="appengine"/>
       <property name="javax.jdo.option.NontransactionalRead" value="true"/>
       <property name="javax.jdo.option.NontransactionalWrite" value="true"/>
       <property name="javax.jdo.option.RetainValues" value="true"/>
       <property name="datanucleus.appengine.autoCreateDatastoreTxns" value="true"/>
       <property name="datanucleus.appengine.datastoreEnableXGTransactions" value="true"/>
   </persistence-manager-factory>

抛出异常xgTx.begin();

4

1 回答 1

15

行。我找到了需要做的事情。

private final LocalServiceTestHelper helper =
            new LocalServiceTestHelper(new LocalDatastoreServiceTestConfig()**.setDefaultHighRepJobPolicyUnappliedJobPercentage(100))**;

如上所示:https ://developers.google.com/appengine/docs/java/tools/localunittesting#Writing_HRD_Datastore_Tests

一个有点晦涩的设置,但它就在那里。

于 2012-05-30T07:55:51.387 回答