/*****************************************************************
* 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.cayenne.access;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import org.apache.cayenne.query.Ordering;
import org.apache.cayenne.query.SelectQuery;
import org.apache.cayenne.query.SortOrder;
import org.apache.cayenne.testdo.locking.RelLockingTestEntity;
import org.apache.cayenne.testdo.locking.SimpleLockingTestEntity;
import org.apache.cayenne.unit.LockingCase;
/**
*/
public class OptimisticLockingTest extends LockingCase {
protected DataContext context;
@Override
protected void setUp() throws Exception {
context = createDataContext();
}
public void testSuccessSimpleLockingOnDelete() throws Exception {
createTestData("testSimpleLocking");
List allObjects = context.performQuery(new SelectQuery(
SimpleLockingTestEntity.class));
assertEquals(1, allObjects.size());
SimpleLockingTestEntity object = (SimpleLockingTestEntity) allObjects.get(0);
// change description and save... no optimistic lock failure expected
object.setDescription("first update");
context.commitChanges();
context.deleteObject(object);
context.commitChanges();
}
public void testSuccessSimpleLockingOnDeleteFollowedByInvalidate() throws Exception {
createTestData("testSimpleLocking");
List allObjects = context.performQuery(new SelectQuery(
SimpleLockingTestEntity.class));
assertEquals(1, allObjects.size());
SimpleLockingTestEntity object = (SimpleLockingTestEntity) allObjects.get(0);
// change description and save... no optimistic lock failure expected
object.setDescription("first update");
context.commitChanges();
context.deleteObject(object);
context.invalidateObjects(Collections.singletonList(object));
context.commitChanges();
}
public void testSuccessSimpleLockingOnDeleteFollowedByForgetSnapshot()
throws Exception {
createTestData("testSimpleLocking");
List allObjects = context.performQuery(new SelectQuery(
SimpleLockingTestEntity.class));
assertEquals(1, allObjects.size());
SimpleLockingTestEntity object = (SimpleLockingTestEntity) allObjects.get(0);
// change description and save... no optimistic lock failure expected
object.setDescription("first update");
context.commitChanges();
context.deleteObject(object);
context.getObjectStore().getDataRowCache().forgetSnapshot(object.getObjectId());
context.commitChanges();
}
public void testSuccessSimpleLockingOnDeletePrecededByInvalidate() throws Exception {
createTestData("testSimpleLocking");
List allObjects = context.performQuery(new SelectQuery(
SimpleLockingTestEntity.class));
assertEquals(1, allObjects.size());
SimpleLockingTestEntity object = (SimpleLockingTestEntity) allObjects.get(0);
// change description and save... no optimistic lock failure expected
object.setDescription("first update");
context.commitChanges();
context.invalidateObjects(Collections.singletonList(object));
context.deleteObject(object);
context.commitChanges();
}
public void testSuccessSimpleLockingOnDeletePrecededByForgetSnapshot()
throws Exception {
createTestData("testSimpleLocking");
List allObjects = context.performQuery(new SelectQuery(
SimpleLockingTestEntity.class));
assertEquals(1, allObjects.size());
SimpleLockingTestEntity object = (SimpleLockingTestEntity) allObjects.get(0);
// change description and save... no optimistic lock failure expected
object.setDescription("first update");
context.commitChanges();
context.getObjectStore().getDataRowCache().forgetSnapshot(object.getObjectId());
context.deleteObject(object);
context.commitChanges();
}
public void testFailSimpleLockingOnDelete() throws Exception {
createTestData("testSimpleLocking");
List allObjects = context.performQuery(new SelectQuery(
SimpleLockingTestEntity.class));
assertEquals(1, allObjects.size());
SimpleLockingTestEntity object = (SimpleLockingTestEntity) allObjects.get(0);
// change description and save... no optimistic lock failure expected
object.setDescription("second update");
context.commitChanges();
// change row underneath, delete and save... optimistic lock failure expected
createTestData("SimpleLockUpdate");
context.deleteObject(object);
try {
context.commitChanges();
fail("Optimistic lock failure expected.");
}
catch (OptimisticLockException ex) {
// optimistic lock failure expected...
}
}
public void testSuccessSimpleLockingOnUpdate() throws Exception {
createTestData("testSimpleLocking");
List allObjects = context.performQuery(new SelectQuery(
SimpleLockingTestEntity.class));
assertEquals(1, allObjects.size());
SimpleLockingTestEntity object = (SimpleLockingTestEntity) allObjects.get(0);
// change description and save... no optimistic lock failure expected
object.setDescription("first update");
context.commitChanges();
object.setDescription("second update");
context.commitChanges();
}
public void testSuccessSimpleLockingOnUpdateFollowedByInvalidate() throws Exception {
createTestData("testSimpleLocking");
List allObjects = context.performQuery(new SelectQuery(
SimpleLockingTestEntity.class));
assertEquals(1, allObjects.size());
SimpleLockingTestEntity object = (SimpleLockingTestEntity) allObjects.get(0);
// change description and save... no optimistic lock failure expected
object.setDescription("first update");
context.commitChanges();
object.setDescription("second update");
context.invalidateObjects(Collections.singletonList(object));
context.commitChanges();
}
public void testSuccessSimpleLockingOnUpdatePrecededByInvalidate() throws Exception {
createTestData("testSimpleLocking");
List allObjects = context.performQuery(new SelectQuery(
SimpleLockingTestEntity.class));
assertEquals(1, allObjects.size());
SimpleLockingTestEntity object = (SimpleLockingTestEntity) allObjects.get(0);
// change description and save... no optimistic lock failure expected
object.setDescription("first update");
context.commitChanges();
context.invalidateObjects(Collections.singletonList(object));
object.setDescription("second update");
context.commitChanges();
}
public void testSuccessSimpleLockingOnUpdateFollowedByForgetSnapshot()
throws Exception {
createTestData("testSimpleLocking");
List allObjects = context.performQuery(new SelectQuery(
SimpleLockingTestEntity.class));
assertEquals(1, allObjects.size());
SimpleLockingTestEntity object = (SimpleLockingTestEntity) allObjects.get(0);
// change description and save... no optimistic lock failure expected
object.setDescription("first update");
context.commitChanges();
object.setDescription("second update");
context.getObjectStore().getDataRowCache().forgetSnapshot(object.getObjectId());
context.commitChanges();
}
public void testSuccessSimpleLockingOnUpdatePrecededByForgetSnapshot()
throws Exception {
createTestData("testSimpleLocking");
List allObjects = context.performQuery(new SelectQuery(
SimpleLockingTestEntity.class));
assertEquals(1, allObjects.size());
SimpleLockingTestEntity object = (SimpleLockingTestEntity) allObjects.get(0);
// change description and save... no optimistic lock failure expected
object.setDescription("first update");
context.commitChanges();
context.getObjectStore().getDataRowCache().forgetSnapshot(object.getObjectId());
object.setDescription("second update");
context.commitChanges();
}
public void testFailSimpleLocking() throws Exception {
createTestData("testSimpleLocking");
List allObjects = context.performQuery(new SelectQuery(
SimpleLockingTestEntity.class));
assertEquals(1, allObjects.size());
SimpleLockingTestEntity object = (SimpleLockingTestEntity) allObjects.get(0);
// change description and save... no optimistic lock failure expected
object.setDescription("first update");
context.commitChanges();
// change row underneath, change description and save... optimistic lock failure
// expected
createTestData("SimpleLockUpdate");
object.setDescription("second update");
try {
context.commitChanges();
fail("Optimistic lock failure expected.");
}
catch (OptimisticLockException ex) {
// optimistic lock failure expected...
}
}
public void testFailLockingOnNull() throws Exception {
createTestData("testLockingOnNull");
List allObjects = context.performQuery(new SelectQuery(
SimpleLockingTestEntity.class));
assertEquals(1, allObjects.size());
SimpleLockingTestEntity object = (SimpleLockingTestEntity) allObjects.get(0);
// change description and save... no optimistic lock failure expected...
object.setDescription("first update");
context.commitChanges();
// change row underneath, change description and save... optimistic lock failure
// expected
createTestData("SimpleLockUpdate");
object.setDescription("second update");
try {
context.commitChanges();
fail("Optimistic lock failure expected.");
}
catch (OptimisticLockException ex) {
// optimistic lock failure expected...
}
}
public void testSuccessLockingOnMixed() throws Exception {
createTestData("testLockingOnMixed");
SelectQuery query = new SelectQuery(SimpleLockingTestEntity.class);
query.addOrdering(new Ordering("db:LOCKING_TEST_ID", SortOrder.ASCENDING));
List allObjects = context.performQuery(query);
assertEquals(3, allObjects.size());
SimpleLockingTestEntity object1 = (SimpleLockingTestEntity) allObjects.get(0);
SimpleLockingTestEntity object2 = (SimpleLockingTestEntity) allObjects.get(1);
SimpleLockingTestEntity object3 = (SimpleLockingTestEntity) allObjects.get(2);
// change description and save... no optimistic lock failure expected...
object1.setDescription("first update for object1");
object2.setDescription("first update for object2");
object3.setName("object3 - new name");
context.commitChanges();
// TODO: it would be nice to pick inside DataContext to see that 3 batches where
// generated...
// this requires refactoring of ContextCommit.
}
public void testFailLockingOnToOne() throws Exception {
createTestData("testLockingOnToOne");
List allObjects = context
.performQuery(new SelectQuery(RelLockingTestEntity.class));
assertEquals(1, allObjects.size());
RelLockingTestEntity object = (RelLockingTestEntity) allObjects.get(0);
// change name and save... no optimistic lock failure expected
object.setName("first update");
context.commitChanges();
// change relationship and save... no optimistic lock failure expected
SimpleLockingTestEntity object1 = context
.newObject(SimpleLockingTestEntity.class);
object.setToSimpleLockingTest(object1);
context.commitChanges();
// change row underneath, change description and save... optimistic lock failure
// expected
createTestData("RelLockUpdate");
object.setName("third update");
try {
context.commitChanges();
fail("Optimistic lock failure expected.");
}
catch (OptimisticLockException ex) {
// optimistic lock failure expected...
}
}
public void testFailRetrieveRow() throws Exception {
createTestData("testSimpleLocking");
List allObjects = context.performQuery(new SelectQuery(
SimpleLockingTestEntity.class));
assertEquals(1, allObjects.size());
SimpleLockingTestEntity object = (SimpleLockingTestEntity) allObjects.get(0);
object.setDescription("first update");
// change row underneath, change description and save... optimistic lock failure
// expected
createTestData("SimpleLockUpdate");
try {
context.commitChanges();
fail("Optimistic lock failure expected.");
}
catch (OptimisticLockException ex) {
Map freshFailedRow = ex.getFreshSnapshot(context);
assertNotNull(freshFailedRow);
assertEquals("LockTest1Updated", freshFailedRow.get("NAME"));
}
}
public void testFailRetrieveDeletedRow() throws Exception {
createTestData("testSimpleLocking");
List allObjects = context.performQuery(new SelectQuery(
SimpleLockingTestEntity.class));
assertEquals(1, allObjects.size());
SimpleLockingTestEntity object = (SimpleLockingTestEntity) allObjects.get(0);
object.setDescription("first update");
// delete row underneath, change description and save... optimistic lock failure
// expected
createTestData("SimpleLockDelete");
try {
context.commitChanges();
fail("Optimistic lock failure expected.");
}
catch (OptimisticLockException ex) {
Map freshFailedRow = ex.getFreshSnapshot(context);
assertNull(freshFailedRow);
}
}
}