| /* |
| * TestFetchGroups.java |
| * |
| * Created on October 10, 2006, 5:46 PM |
| * |
| * To change this template, choose Tools | Template Manager |
| * and open the template in the editor. |
| */ |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.openjpa.persistence.kernel; |
| |
| import java.util.Arrays; |
| import java.util.BitSet; |
| import java.util.Date; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Map; |
| |
| import org.apache.openjpa.kernel.OpenJPAStateManager; |
| import org.apache.openjpa.meta.FieldMetaData; |
| import org.apache.openjpa.persistence.FetchPlan; |
| import org.apache.openjpa.persistence.OpenJPAEntityManager; |
| import org.apache.openjpa.persistence.OpenJPAEntityManagerFactory; |
| import org.apache.openjpa.persistence.kernel.common.apps.AttachA; |
| import org.apache.openjpa.persistence.kernel.common.apps.AttachB; |
| import org.apache.openjpa.persistence.kernel.common.apps.AttachC; |
| import org.apache.openjpa.persistence.kernel.common.apps.AttachD; |
| import org.apache.openjpa.persistence.kernel.common.apps.AttachE; |
| import org.apache.openjpa.persistence.kernel.common.apps.AttachF; |
| import org.apache.openjpa.persistence.kernel.common.apps.FetchGroupTestObject; |
| import org.apache.openjpa.persistence.kernel.common.apps. |
| FetchGroupTestObjectChild; |
| |
| public class TestFetchGroups extends BaseKernelTest { |
| |
| private int oid1; |
| private int oid2; |
| private int oidc1; |
| |
| public TestFetchGroups(String s) { |
| super(s); |
| } |
| |
| /** |
| * Creates a new instance of TestFetchGroups |
| */ |
| public TestFetchGroups() { |
| } |
| |
| @Override |
| public void setUp() throws Exception { |
| super.setUp(FetchGroupTestObject.class, FetchGroupTestObjectChild.class, |
| AttachA.class, AttachB.class, AttachC.class, AttachD.class, AttachE.class, AttachF.class); |
| |
| FetchGroupTestObject o1 = new FetchGroupTestObject(); |
| // the value that 'a' is set to is important -- TestFetchGroupsExtent |
| // and TestFetchGroupsQuery rely on this |
| o1.setA(5); |
| o1.setB("foo"); |
| //o1.setC (new BigInteger (89)); |
| o1.setD(new Date()); |
| o1.setE("e-foo"); |
| o1.setF("f-foo"); |
| |
| FetchGroupTestObject o2 = new FetchGroupTestObject(); |
| // the value that 'a' is set to is important -- TestFetchGroupsExtent |
| // and TestFetchGroupsQuery rely on this |
| o2.setA(3); |
| o2.setB("bar"); |
| //o2.setC (new BigInteger (13)); |
| o2.setD(new Date()); |
| o2.setE("e-bar"); |
| o2.setF("f-bar"); |
| o2.setG(o1); |
| o2.setH(o1); |
| |
| FetchGroupTestObjectChild c1 = new FetchGroupTestObjectChild(); |
| // the value that 'a' is set to is important -- TestFetchGroupsExtent |
| // and TestFetchGroupsQuery rely on this |
| c1.setA(4); |
| c1.setB("child"); |
| c1.setD(new Date()); |
| c1.setE("e-baz"); |
| c1.setF("f-baz"); |
| c1.setG(o1); |
| c1.setH(o1); |
| c1.setChildA(1); |
| c1.setChildB(2); |
| c1.setChildC(3); |
| c1.setChildD(4); |
| |
| OpenJPAEntityManager pm = getPM(); |
| startTx(pm); |
| |
| pm.persist(o1); |
| pm.persist(o2); |
| pm.persist(c1); |
| endTx(pm); |
| |
| oid1 = o1.getId(); |
| oid2 = o2.getId(); |
| oidc1 = c1.getId(); |
| |
| endEm(pm); |
| } |
| |
| public void testFetchGroupsFromConfiguration() { |
| Map props = new HashMap(); |
| props.put("openjpa.FetchGroups", "default,fg1,fg2"); |
| OpenJPAEntityManagerFactory factory = getEmf(props); |
| |
| OpenJPAEntityManager pm = factory.createEntityManager(); |
| checkGroups(pm, new String[]{ "fg1", "fg2" }); |
| factory.close(); |
| } |
| |
| public void testFetchGroupsNoConfiguration() { |
| OpenJPAEntityManager pm = getPM(); |
| |
| FetchGroupTestObject o1 = getO1(pm); |
| FetchGroupTestObject o2 = getO2(pm); |
| |
| // only field a should be loaded. |
| checkObject(pm, o1, true, false, false, false, false, false); |
| |
| // upon loading field b, fields c and d should also be loaded, |
| // but e and f should not. |
| o1.getB(); |
| checkObject(pm, o1, true, true, true, true, false, false); |
| |
| // loading field h should not cause any of the others to be loaded. |
| assertEquals(o1, o2.getH()); |
| checkObject(pm, o2, true, false, false, false, false, false); |
| |
| // loading field g should cause e and f to be loaded. |
| assertEquals(o1, o2.getG()); |
| checkObject(pm, o2, true, false, false, false, true, true); |
| } |
| |
| public void testRetrieveAll() { |
| OpenJPAEntityManager pm = getPM(); |
| |
| FetchGroupTestObject o1 = getO1(pm); |
| FetchGroupTestObject o2 = getO2(pm); |
| |
| // only field a should be loaded. |
| checkObject(pm, o1, true, false, false, false, false, false); |
| checkObject(pm, o2, true, false, false, false, false, false); |
| |
| // only field a should be loaded. |
| pm.retrieve(o1); |
| checkObject(pm, o1, true, false, false, false, false, false); |
| |
| // Add groups 1 and 3 to the default fetch configuration. |
| pm.getFetchPlan().addFetchGroup("g1"); |
| pm.getFetchPlan().addFetchGroup("g3"); |
| |
| // Retrieve o1's "DFG" which will actually do all configured |
| // fetch groups. |
| // DFG fields and fields in groups 1 and 3 should be loaded |
| pm.retrieve(o1); |
| checkObject(pm, o1, true, true, true, true, false, false); |
| } |
| |
| public void testFetchGroupConfiguration() { |
| OpenJPAEntityManager pm = getPM(); |
| FetchPlan fetch = pm.getFetchPlan(); |
| |
| checkGroups(pm, new String[0]); |
| |
| fetch.addFetchGroup("foo"); |
| checkGroups(pm, new String[]{ "foo" }); |
| |
| fetch.addFetchGroup("bar"); |
| fetch.addFetchGroup("baz"); |
| checkGroups(pm, new String[]{ "foo", "bar", "baz" }); |
| |
| fetch.addFetchGroup("a"); |
| fetch.addFetchGroup("b"); |
| fetch.addFetchGroup("c"); |
| fetch.addFetchGroup("d"); |
| checkGroups(pm, new String[] |
| { "foo", "bar", "baz", "a", "b", "c", "d" }); |
| |
| fetch.removeFetchGroup("bar"); |
| checkGroups(pm, new String[]{ "foo", "baz", "a", "b", "c", "d" }); |
| |
| fetch.removeFetchGroup("baz"); |
| fetch.removeFetchGroup("c"); |
| checkGroups(pm, new String[]{ "foo", "a", "b", "d" }); |
| |
| fetch.clearFetchGroups().addFetchGroup(FetchPlan.GROUP_DEFAULT); |
| checkGroups(pm, new String[0]); |
| } |
| |
| private void checkGroups(OpenJPAEntityManager pm, String[] groups) { |
| HashSet groupSet = new HashSet(Arrays.asList(groups)); |
| groupSet.add(FetchPlan.GROUP_DEFAULT); |
| assertEquals("groupSet dont match", groupSet, |
| new HashSet(pm.getFetchPlan().getFetchGroups())); |
| } |
| |
| public void testFetchGroupsChildWithConfiguration() { |
| OpenJPAEntityManager pm = getPM(); |
| pm.getFetchPlan().addFetchGroup("g1"); |
| pm.getFetchPlan().addFetchGroup("g3"); |
| |
| // get this so that h's value is loaded into cache. |
| FetchGroupTestObject o1 = getO1(pm); |
| |
| FetchGroupTestObjectChild c1 = getC1(pm); |
| |
| // DFG fields and fields in groups 1 and 3 should be loaded |
| checkChildObject(pm, c1, true, true, true, true, false, false, |
| true, true, false, true); |
| |
| // upon accessing field b, nothing should change. |
| c1.getB(); |
| checkChildObject(pm, c1, true, true, true, true, false, false, |
| true, true, false, true); |
| |
| c1.getH(); |
| } |
| |
| public void testFetchGroupsWithConfiguration() { |
| OpenJPAEntityManager pm = getPM(); |
| |
| pm.getFetchPlan().addFetchGroup("g1"); |
| pm.getFetchPlan().addFetchGroup("g3"); |
| |
| FetchGroupTestObject o1 = getO1(pm); |
| FetchGroupTestObject o2 = getO2(pm); |
| |
| // DFG fields and fields in groups 1 and 3 should be loaded |
| checkObject(pm, o1, true, true, true, true, false, false); |
| |
| // upon accessing field b, nothing should change. |
| o1.getB(); |
| checkObject(pm, o1, true, true, true, true, false, false); |
| |
| // loading field h should not cause any of the others to be loaded. |
| assertEquals(o1, o2.getH()); |
| checkObject(pm, o2, true, true, true, true, false, false); |
| |
| // loading field g should cause e and f to be loaded. |
| assertEquals(o1, o2.getG()); |
| checkObject(pm, o2, true, true, true, true, true, true); |
| } |
| |
| /** |
| * Tests that relation fields are loaded immediately when |
| * they are in one of the PM's configured fetch groups. |
| */ |
| public void testRelationsLoaded() { |
| OpenJPAEntityManager pm = getPM(); |
| pm.getFetchPlan().addFetchGroup("g2"); |
| |
| // note: important the o1 is *not* in pm's cache at this point, so that |
| // we know it takes another datastore trip to get o1 |
| |
| // load o2 and retrieve its state manager |
| OpenJPAStateManager sm = getStateManager(getO2(pm), pm); |
| assertNotNull("SM is NULL", sm); |
| |
| // 'g' is the name of a 1-1 relation field to o1 in configured |
| // fetch group 'g2'; make sure it is loaded |
| int field = sm.getMetaData().getField("g").getIndex(); |
| try { |
| assertTrue(sm.getLoaded().get(field)); |
| assertEquals(oid1, |
| ((FetchGroupTestObject) sm.fetchObjectField(field)).getId()); |
| } catch (junit.framework.AssertionFailedError afe) { |
| bug(623, afe, "One to one mappings do not work with custom " |
| + "fetch groups"); |
| } |
| } |
| |
| protected void checkObject(OpenJPAEntityManager pm, |
| FetchGroupTestObject o, boolean a, boolean b, |
| boolean c, boolean d, boolean e, boolean f) { |
| OpenJPAStateManager sm = getStateManager(o, pm); |
| BitSet loaded = sm.getLoaded(); |
| |
| FieldMetaData[] fmds = sm.getMetaData().getFields(); |
| int i = 0; |
| for (; i < fmds.length; i++) { |
| if (fmds[i].getName().equals("a")) |
| assertEquals(a, loaded.get(i)); |
| else if (fmds[i].getName().equals("b")) |
| assertEquals(b, loaded.get(i)); |
| else if (fmds[i].getName().equals("c")) |
| assertEquals(c, loaded.get(i)); |
| else if (fmds[i].getName().equals("d")) |
| assertEquals(d, loaded.get(i)); |
| else if (fmds[i].getName().equals("e")) |
| assertEquals(e, loaded.get(i)); |
| else if (fmds[i].getName().equals("f")) |
| assertEquals(f, loaded.get(i)); |
| } |
| } |
| |
| protected void checkChildObject(OpenJPAEntityManager pm, |
| FetchGroupTestObjectChild o, boolean a, boolean b, |
| boolean c, boolean d, boolean e, boolean f, boolean childA, |
| boolean childB, boolean childC, boolean childD) { |
| checkObject(pm, o, a, b, c, d, e, f); |
| |
| OpenJPAStateManager sm = getStateManager(o, pm); |
| BitSet loaded = sm.getLoaded(); |
| |
| FieldMetaData[] fmds = sm.getMetaData().getFields(); |
| int i = 0; |
| for (; i < fmds.length; i++) { |
| if (fmds[i].getName().equals("childA")) |
| assertEquals(childA, loaded.get(i)); |
| else if (fmds[i].getName().equals("childB")) |
| assertEquals(childB, loaded.get(i)); |
| else if (fmds[i].getName().equals("childC")) |
| assertEquals(childC, loaded.get(i)); |
| else if (fmds[i].getName().equals("childD")) |
| assertEquals(childD, loaded.get(i)); |
| } |
| } |
| |
| protected FetchGroupTestObject getO1(OpenJPAEntityManager pm) { |
| return pm.find(FetchGroupTestObject.class, oid1); |
| } |
| |
| protected FetchGroupTestObject getO2(OpenJPAEntityManager pm) { |
| return pm.find(FetchGroupTestObject.class, oid2); |
| } |
| |
| protected FetchGroupTestObjectChild getC1(OpenJPAEntityManager pm) { |
| return pm.find(FetchGroupTestObjectChild.class, oidc1); |
| } |
| |
| /** |
| * Tests that named fetch groups actually bring in the |
| * managed object. |
| */ |
| public void testFetchGroupInstantiated() { |
| OpenJPAEntityManager pm = getPM(); |
| startTx(pm); |
| AttachE e = new AttachE(); |
| AttachB b = new AttachB(); |
| e.setB(b); |
| pm.persist(e); |
| |
| endTx(pm); |
| endEm(pm); |
| |
| pm = getPM(); |
| startTx(pm); |
| assertSize(0, pm.getManagedObjects()); |
| pm.createExtent(AttachE.class, true).iterator().next(); |
| // make sure relation is not loaded |
| assertSize(1, pm.getManagedObjects()); |
| rollbackTx(pm); |
| endEm(pm); |
| |
| pm = getPM(); |
| startTx(pm); |
| // now make sure we load relations |
| pm.getFetchPlan().addFetchGroup("all"); |
| assertSize(0, pm.getManagedObjects()); |
| pm.createExtent(AttachE.class, true).iterator().next(); |
| // make sure relation is loaded |
| assertSize(2, pm.getManagedObjects()); |
| rollbackTx(pm); |
| endEm(pm); |
| } |
| } |