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OPENJPA-1602: check in test case from trunk r931628 by Fay 

git-svn-id: https://svn.apache.org/repos/asf/openjpa/branches/2.0.x@931756 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Donald Woods 2010-04-08 02:15:59 +00:00
parent 0cbc402296
commit c384f39d27
1 changed files with 25 additions and 0 deletions
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25
openjpa-persistence-locking/src/test/java/org/apache/openjpa/persistence/lockmgr/TestPessimisticLocks.java
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@ -334,6 +334,31 @@ public class TestPessimisticLocks extends SQLListenerTestCase {
em2.close(); em2.close();
} }
/*
* Test multiple execution of the same query with pessimistic lock.
*/
public void testRepeatedQueryWithPessimisticLocks() {
EntityManager em = emf.createEntityManager();
resetSQL();
em.getTransaction().begin();
String jpql = "select e.firstName from Employee e where e.id = 1";
Query q1 = em.createQuery(jpql);
q1.setLockMode(LockModeType.PESSIMISTIC_WRITE);
String firstName1 = (String) q1.getSingleResult();
//Expected sql for Derby is:
//SELECT t0.firstName FROM Employee t0 WHERE (t0.id = CAST(? AS BIGINT)) FOR UPDATE WITH RR
String SQL1 = toString(sql);
// run the second time
resetSQL();
Query q2 = em.createQuery(jpql);
q2.setLockMode(LockModeType.PESSIMISTIC_WRITE);
String firstName2 = (String) q2.getSingleResult();
String SQL2 = toString(sql);
assertEquals(SQL1, SQL2);
em.getTransaction().commit();
}
/** /**
* Assert that an exception of proper type has been thrown. Also checks that * Assert that an exception of proper type has been thrown. Also checks that
* that the exception has populated the failed object. * that the exception has populated the failed object.