Package org.apache.openjpa.kernel

Examples of org.apache.openjpa.kernel.Broker

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        assertEquals(String.class, result[0].getClass());
        assertEquals(CacheObjectE.class, result[1].getClass());
    }

    public void testEmbeddedFields() {
        Broker broker = _factory.newBroker();
        Query q =
            broker.newQuery(JPQLParser.LANG_JPQL, "select embedded FROM " +
                SelfReferencingCacheTestObject.class.getSimpleName() +
                " a where a.str='foo'");

        List l = null;
        try {
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        l = (List) q.execute();
        assertEquals(CacheObjectAChild1.class, l.get(0).getClass());
    }

    public void testNonNullRelationOfSameTypeAsCandidate() {
        Broker broker = _factory.newBroker();
        Query q = broker.newQuery(JPQLParser.LANG_JPQL, "select a.o FROM " +
            SelfReferencingCacheTestObject.class.getSimpleName() +
            " a where a.o IS NOT NULL");

        List l = (List) q.execute();
        assertEquals(SelfReferencingCacheTestObject.class,
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        assertEquals("bar",
            ((SelfReferencingCacheTestObject) l.get(0)).getStr());
    }

    public void testNullRelationOfSameTypeAsCandidate() {
        Broker broker = _factory.newBroker();
        Query q = broker.newQuery(JPQLParser.LANG_JPQL, "select a.o FROM " +
            SelfReferencingCacheTestObject.class.getSimpleName() +
            " a where a.o IS NULL");

        List l = (List) q.execute();
        assertNull(l.get(0));
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        propsMap.put("openjpa.DataCache", "true");
        propsMap.put("openjpa.RemoteCommitProvider", "sjvm");
        propsMap.put("openjpa.BrokerImpl", CacheTestBroker.class.getName());
        EntityManagerFactory emf = getEmf(propsMap);
        _factory = JPAFacadeHelper.toBrokerFactory(emf);
        Broker broker = _factory.newBroker();
        broker.begin();
        for (int i = 0; i < 50; i++)
            broker.persist(new CacheObjectAChild1("", "JPQL2Queries", i),
                null);
        broker.commit();
        broker.close();

        CacheTestHelper.cacheManager(_factory).getSystemQueryCache().clear();
    }
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    public void testBothRanges() {
        rangeTestHelper(20, 28);
    }

    private void rangeTestHelper(final int start, final int end) {
        Broker broker = _factory.newBroker();
        Query q = broker.newQuery(JPQLParser.LANG_JPQL, "Select a FROM " +
            CacheObjectAChild1.class.getSimpleName() + " a");
        q.setRange(start, end);

        // should not yet be in the cache
        CacheTestHelper.assertInCache(this, q, Boolean.FALSE);
        Collection c = (Collection) q.execute();

        // iterate the results. This will cause the query to be
        // enlisted in the cache.
        CacheTestHelper.iterate(c);
        assertEquals(end - start, c.size());
        CacheTestHelper.assertInCache(this, q, Boolean.TRUE);

        broker.close();

        broker = _factory.newBroker();
        q = broker.newQuery(JPQLParser.LANG_JPQL, "Select a FROM " +
            CacheObjectAChild1.class.getSimpleName() + " a");
        q.setRange(start, end);
        CacheTestHelper.assertInCache(this, q, Boolean.TRUE);
        c = (Collection) q.execute();
        assertEquals(end - start, c.size());

        // now check if a smaller range is in cache
        q = broker.newQuery(JPQLParser.LANG_JPQL, "Select a FROM " +
            CacheObjectAChild1.class.getSimpleName() + " a");
        q.setRange(start, end - 1);
        CacheTestHelper.assertInCache(this, q, Boolean.FALSE);
        c = (Collection) q.execute();
        assertEquals(end - start - 1, c.size());
        broker.close();
    }
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        assertEquals(end - start - 1, c.size());
        broker.close();
    }

    public void testResultClassIsCached() {
        Broker broker = _factory.newBroker();
        Query q = broker.newQuery(JPQLParser.LANG_JPQL, "Select a FROM " +
            CacheObjectAChild1.class.getSimpleName() + " a");
        q.setResultType(Object.class);
        Collection c = (Collection) q.execute();
        CacheTestHelper.iterate(c);
        CacheTestHelper.assertInCache(this, q, Boolean.TRUE);
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        Class[] types = q.getProjectionTypes();
        assertEquals(0, types.length);
    }

    public void testNoResultClause() {
        Broker broker = getBroker();
        Query q =
            broker.newQuery(JPQLParser.LANG_JPQL, "select a FROM " +
                CacheObjectA.class.getSimpleName() + " a");
        Class[] types = q.getProjectionTypes();
        assertEquals(0, types.length);
    }
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        EntityManager em = null;
        Statement s = null;
        try {
            em = emf.createEntityManager();
            assertNotNull(em);
            Broker broker = JPAFacadeHelper.toBroker(em);
            Connection conn = (Connection) broker.getConnection();
            s = conn.createStatement();
            if (timeoutSecs > 0) {
                s.setQueryTimeout(timeoutSecs);
            }
            getLog().trace("execute(" + sql + ")");
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        propsMap.put("openjpa.RemoteCommitProvider", "sjvm");
        propsMap.put("openjpa.BrokerImpl", CacheTestBroker.class.getName());
        EntityManagerFactory emf = getEmf(propsMap);
        _factory = JPAFacadeHelper.toBrokerFactory(emf);

        Broker broker = _factory.newBroker();
        broker.begin();
        CacheObjectE e = new CacheObjectE("bar");
        CacheObjectJ j = new CacheObjectJ("foo", e);
        broker.persist(j, null);
        broker.persist(e, null);
        broker.commit();
        _eId = broker.getObjectId(e);
        broker.close();
    }
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        _eId = broker.getObjectId(e);
        broker.close();
    }

    public void testPCParameter() {
        Broker broker = _factory.newBroker();
        broker.begin();
        CacheObjectE e = (CacheObjectE) broker.find(_eId, true, null);
        Query q = broker.newQuery(JPQLParser.LANG_JPQL,
            "select a from " +
                CacheObjectJ.class.getSimpleName() + " a where a.e = :param");

        Collection c = (Collection) q.execute(new Object[]{ e });
        CacheTestHelper.iterate(c);
        Object o = c.iterator().next();
        assertTrue(o instanceof CacheObjectJ);
        CacheTestHelper.assertInCache(this, q, Boolean.TRUE, new Object[]{ e });

        q = broker.newQuery(JPQLParser.LANG_JPQL,
            "select a from " +
                CacheObjectJ.class.getSimpleName() + " a where a.e = :param");

        c = (Collection) q.execute(new Object[]{ e });
        Object o2 = c.iterator().next();
        assertTrue(o2 instanceof CacheObjectJ);
        assertTrue(o == o2);

        broker.commit();
        broker.close();
    }
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Related Classes of org.apache.openjpa.kernel.Broker

  • org.apache.openjpa.conf.MetaDataCacheMaintenance
  • org.apache.openjpa.event.RemoteCommitEventManager
  • org.apache.openjpa.jdbc.kernel.exps.ConstPath
  • org.apache.openjpa.jdbc.kernel.exps.PCPath
  • org.apache.openjpa.kernel.exps.CandidatePath
  • org.apache.openjpa.persistence.datacache.CacheTest
  • org.apache.openjpa.persistence.datacache.CacheTestHelper
  • org.apache.openjpa.persistence.datacache.TestJPQL2Queries
  • org.apache.openjpa.persistence.datacache.TestJPQL2ResultsAndResultClasses
  • org.apache.openjpa.persistence.datacache.TestJPQLRelationProjections
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