| /* |
| * 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 |
| <<<<<<< Updated upstream |
| * |
| * 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 |
| ======= |
| * |
| * https://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 |
| >>>>>>> Stashed changes |
| * limitations under the License. |
| */ |
| |
| package org.apache.jdo.tck.lifecycle; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.ObjectInputStream; |
| import java.io.ObjectOutputStream; |
| import java.util.Iterator; |
| import javax.jdo.Extent; |
| import javax.jdo.JDOFatalException; |
| import javax.jdo.Transaction; |
| import org.apache.jdo.tck.JDO_Test; |
| import org.apache.jdo.tck.pc.lifecycle.StateTransitionObj; |
| import org.apache.jdo.tck.util.BatchTestRunner; |
| |
| /** |
| * <B>Title:</B> Test State Transitions <br> |
| * <B>Keywords:</B> lifecycle <br> |
| * <B>Assertion IDs:</B> A5.9-1 through A5.9-190 <B>Assertion Description: </B> All possible state |
| * transistions are being tested in this test. |
| */ |
| public class StateTransitionsReturnedObjects extends JDO_Test { |
| |
| /** */ |
| private static final String ASSERTION_FAILED = |
| "Assertions A5.9-1 through A5.5.8 (serialization, detachment, attachment) failed: "; |
| |
| /** |
| * The <code>main</code> is called when the class is directly executed from the command line. |
| * |
| * @param args The arguments passed to the program. |
| */ |
| public static void main(String[] args) { |
| BatchTestRunner.run(StateTransitionsReturnedObjects.class); |
| } |
| |
| private Transaction transaction; |
| private int scenario; |
| private int operation; |
| private int current_state; |
| private int expected_state; |
| private int new_state; |
| |
| /** Operations that cause state changes */ |
| private static final int MAKEPERSISTENTOPTIMISTIC = 0; |
| |
| private static final int MAKEPERSISTENTDATASTORE = 1; |
| private static final int DETACHCOPYOUTSIDETXNTRTRU = 2; |
| private static final int DETACHCOPYOUTSIDETXNTRFLS = 3; |
| private static final int DETACHCOPYINSIDEDATASTORETX = 4; |
| private static final int DETACHCOPYINSIDEOPTIMISTICTX = 5; |
| private static final int SERIALIZEOUTSIDETX = 6; |
| private static final int SERIALIZEINSIDETX = 7; |
| |
| private static final int NUM_OPERATIONS = 8; |
| |
| private static final String[] operations = { |
| "makePersistent with active optimistic tx", |
| "makePersistent with active datastore tx", |
| "detachCopy outside tx with NontransactionalRead true", |
| "detachCopy outside tx with NontransactionalRead false", |
| "detachCopy with active datastore tx", |
| "detachCopy with active optimistic tx", |
| "serialize outside tx", |
| "serialize with active tx" |
| }; |
| |
| /** Illegal state transitions */ |
| private static final int UNCHANGED = -1; |
| |
| private static final int ERROR = -2; |
| private static final int IMPOSSIBLE = -3; |
| private static final int NOT_APPLICABLE = -4; |
| private static final int UNSPECIFIED = -5; |
| |
| /** State transitions */ |
| public static final int[][] statesOfReturnedObjects = { // [operation] [current state] = new state |
| // TRANSIENT, PERSISTENT_NEW, PERSISTENT_CLEAN, |
| // PERSISTENT_DIRTY, HOLLOW, TRANSIENT_CLEAN, |
| // TRANSIENT_DIRTY, PERSISTENT_NEW_DELETED, PERSISTENT_DELETED, |
| // PERSISTENT_NONTRANSACTIONAL, PERSISTENT_NONTRANSACTIONAL_DIRTY, DETACHED_CLEAN, |
| // DETACHED_DIRTY |
| |
| // makePersistent optimistic transaction |
| { |
| PERSISTENT_NEW, UNCHANGED, UNCHANGED, |
| UNCHANGED, UNCHANGED, PERSISTENT_NEW, |
| PERSISTENT_NEW, UNCHANGED, UNCHANGED, |
| UNCHANGED, UNCHANGED, PERSISTENT_NONTRANSACTIONAL, |
| PERSISTENT_DIRTY |
| }, |
| |
| // makePersistent datastore transaction |
| { |
| PERSISTENT_NEW, UNCHANGED, UNCHANGED, |
| UNCHANGED, UNCHANGED, PERSISTENT_NEW, |
| PERSISTENT_NEW, UNCHANGED, UNCHANGED, |
| UNCHANGED, UNCHANGED, PERSISTENT_CLEAN, |
| PERSISTENT_DIRTY |
| }, |
| |
| // detachCopy outside tx with NontransactionalRead=true |
| { |
| ERROR, IMPOSSIBLE, IMPOSSIBLE, |
| IMPOSSIBLE, DETACHED_CLEAN, ERROR, |
| IMPOSSIBLE, IMPOSSIBLE, IMPOSSIBLE, |
| DETACHED_CLEAN, UNSPECIFIED, DETACHED_CLEAN, |
| UNSPECIFIED |
| }, |
| |
| // detachCopy outside tx with NontransactionalRead=false |
| { |
| ERROR, ERROR, ERROR, |
| ERROR, ERROR, ERROR, |
| IMPOSSIBLE, IMPOSSIBLE, IMPOSSIBLE, |
| ERROR, ERROR, ERROR, |
| ERROR |
| }, |
| |
| // detachCopy with active datastore tx |
| { |
| DETACHED_CLEAN, DETACHED_CLEAN, DETACHED_CLEAN, |
| DETACHED_CLEAN, DETACHED_CLEAN, DETACHED_CLEAN, |
| DETACHED_CLEAN, ERROR, ERROR, |
| DETACHED_CLEAN, IMPOSSIBLE, DETACHED_CLEAN, |
| DETACHED_CLEAN |
| }, |
| |
| // detachCopy with active optimistic tx |
| { |
| DETACHED_CLEAN, DETACHED_CLEAN, DETACHED_CLEAN, |
| DETACHED_CLEAN, DETACHED_CLEAN, DETACHED_CLEAN, |
| DETACHED_CLEAN, ERROR, ERROR, |
| DETACHED_CLEAN, IMPOSSIBLE, DETACHED_CLEAN, |
| DETACHED_CLEAN |
| }, |
| |
| // serialize outside tx |
| { |
| UNCHANGED, IMPOSSIBLE, IMPOSSIBLE, |
| IMPOSSIBLE, DETACHED_CLEAN, IMPOSSIBLE, |
| IMPOSSIBLE, IMPOSSIBLE, IMPOSSIBLE, |
| DETACHED_CLEAN, UNSPECIFIED, UNCHANGED, |
| UNCHANGED |
| }, |
| |
| // serialize with active tx |
| { |
| UNCHANGED, DETACHED_CLEAN, DETACHED_CLEAN, |
| DETACHED_CLEAN, DETACHED_CLEAN, TRANSIENT, |
| TRANSIENT, TRANSIENT, TRANSIENT, |
| DETACHED_CLEAN, TRANSIENT, UNCHANGED, |
| UNCHANGED |
| }, |
| }; |
| |
| private static final int DATASTORE_TX = 0; |
| private static final int OPTIMISTIC_TX = 1; |
| private static final int NO_TX = 2; |
| |
| private static final String[] scenario_string = { |
| "datastore transaction", "optimistic transaction", "no transaction" |
| }; |
| |
| private static final boolean[][] applies_to_scenario = { |
| // Datastore Optimistic No tx |
| {false, true, false}, // makePersistent active optimistic transaction |
| {true, false, false}, // makePersistent active datastore transaction |
| // since the spec leaves detachCopy outside tx a bit underspecified, |
| // we decided to disable this scanario for now |
| {false, false, true}, // detachCopy outside tx with NontransactionalRead=true |
| {false, false, false}, // detachCopy outside tx with NontransactionalRead=false |
| {true, true, false}, // detachCopy with active datastore tx |
| {true, true, false}, // detachCopy with active optimistic tx |
| {false, false, true}, // serialize outside tx |
| {true, true, false} // serialize with active tx |
| }; |
| |
| /** |
| * @see org.apache.jdo.tck.JDO_Test#localSetUp() |
| */ |
| @Override |
| protected void localSetUp() { |
| pm = getPM(); |
| addTearDownClass(StateTransitionObj.class); |
| generatePersistentInstances(); |
| } |
| |
| public void test() { |
| scenario = DATASTORE_TX; |
| checkTransitions(); |
| |
| if (isOptimisticSupported()) { |
| scenario = OPTIMISTIC_TX; |
| checkTransitions(); |
| } |
| |
| scenario = NO_TX; |
| checkTransitions(); |
| failOnError(); |
| } |
| |
| /** */ |
| private void generatePersistentInstances() { |
| if (doPersistentInstancesExist()) return; |
| int i; |
| Transaction t = pm.currentTransaction(); |
| t.begin(); |
| for (i = 0; i < 50; ++i) { |
| StateTransitionObj sto = new StateTransitionObj(i); |
| sto.writeField(i); |
| pm.makePersistent(sto); |
| } |
| t.commit(); |
| if (!doPersistentInstancesExist()) |
| if (debug) |
| logger.debug( |
| "StateTransitionsReturnedObjects unable to create instances of StateTransitionsObj"); |
| } |
| |
| /** */ |
| private boolean doPersistentInstancesExist() { |
| boolean ret; |
| Transaction t = pm.currentTransaction(); |
| t.begin(); |
| Extent<StateTransitionObj> e = pm.getExtent(StateTransitionObj.class, false); |
| Iterator<StateTransitionObj> iter = e.iterator(); |
| ret = iter.hasNext(); |
| t.rollback(); |
| return ret; |
| } |
| |
| /** |
| * @param transaction the transaction |
| */ |
| public void prepareTransactionAndJDOSettings(Transaction transaction) { |
| if (scenario != NO_TX) { |
| transaction.setNontransactionalRead(false); |
| transaction.setNontransactionalWrite(false); |
| pm.setDetachAllOnCommit(false); |
| |
| transaction.setOptimistic(scenario == OPTIMISTIC_TX); |
| transaction.begin(); |
| if (!transaction.isActive()) |
| if (debug) |
| logger.debug( |
| "StateTransitionsReturnedObjects: Transaction should be active, but it is not"); |
| } else { |
| if (operation == DETACHCOPYOUTSIDETXNTRTRU || operation == SERIALIZEOUTSIDETX) { |
| transaction.setNontransactionalRead(true); |
| } |
| if (current_state == PERSISTENT_NONTRANSACTIONAL_DIRTY) { |
| transaction.setNontransactionalWrite(true); |
| } |
| } |
| } |
| |
| /** */ |
| void checkTransitions() { |
| for (operation = 0; operation < NUM_OPERATIONS; ++operation) { |
| // rule out situations that do not apply |
| if (!applies_to_scenario[operation][scenario]) continue; |
| if ((operation == DETACHCOPYOUTSIDETXNTRTRU || operation == SERIALIZEOUTSIDETX) |
| && !isNontransactionalReadSupported()) continue; |
| |
| for (current_state = 0; current_state < NUM_STATES; ++current_state) { |
| if (scenario == OPTIMISTIC_TX && current_state == PERSISTENT_CLEAN) continue; |
| if ((current_state == TRANSIENT_CLEAN || current_state == TRANSIENT_DIRTY) |
| && !isTransientTransactionalSupported()) |
| continue; // this state is not supported by implementation |
| if (current_state == PERSISTENT_NONTRANSACTIONAL |
| && !(isNontransactionalReadSupported() || isNontransactionalWriteSupported())) |
| continue; // this state is not supported by implementation |
| if (current_state == PERSISTENT_NONTRANSACTIONAL_DIRTY |
| && !isNontransactionalWriteSupported()) continue; |
| |
| expected_state = statesOfReturnedObjects[operation][current_state]; |
| if (expected_state == IMPOSSIBLE) continue; |
| if (expected_state == NOT_APPLICABLE) continue; |
| if (expected_state == UNSPECIFIED) continue; |
| if (expected_state == UNCHANGED) expected_state = current_state; |
| try { |
| transaction = pm.currentTransaction(); |
| if (transaction.isActive()) { |
| if (debug) logger.debug("Transaction is active (but should not be), rolling back"); |
| transaction.rollback(); |
| } |
| |
| prepareTransactionAndJDOSettings(transaction); |
| |
| printSituation(); |
| |
| StateTransitionObj obj = getInstanceInState(current_state); |
| if (obj == null) { // could not get object in state |
| if (transaction.isActive()) transaction.rollback(); |
| continue; |
| } |
| |
| // Apply operation, catching possible exception |
| Exception e = null; |
| Object returnedObject = null; |
| try { |
| returnedObject = applyOperation(operation, obj); |
| } catch (Exception excep) { |
| if (excep instanceof javax.jdo.JDOUserException) { |
| e = excep; |
| } else { |
| appendMessage( |
| ASSERTION_FAILED |
| + NL |
| + "StateTransitionsReturnedObjects: " |
| + scenario_string[scenario] |
| + "; current state " |
| + states[current_state] |
| + NL |
| + operations[operation] |
| + "; unexpected exception: " |
| + excep); |
| continue; |
| } |
| } |
| |
| if (expected_state == ERROR) { |
| if (e == null) { |
| appendMessage( |
| ASSERTION_FAILED |
| + NL |
| + "StateTransitionsReturnedObjects: " |
| + scenario_string[scenario] |
| + "; current state " |
| + states[current_state] |
| + NL |
| + operations[operation] |
| + "; JDOUserException should have been thrown"); |
| } else { |
| int stateOfObj = currentState(obj); |
| if (stateOfObj != current_state) { |
| appendMessage( |
| ASSERTION_FAILED |
| + NL |
| + "StateTransitionsReturnedObjects: " |
| + scenario_string[scenario] |
| + "; current state " |
| + states[current_state] |
| + NL |
| + operations[operation] |
| + "; JDOUserException properly thrown, but instance should remain in current state," |
| + " instance changed state to " |
| + states[stateOfObj]); |
| } |
| } |
| } else { |
| // Get new state, verify correct transition and exceptions occurred |
| new_state = currentState(returnedObject); |
| if (!compareStates(new_state, expected_state)) { |
| appendMessage( |
| ASSERTION_FAILED |
| + NL |
| + "StateTransitionsReturnedObjects: " |
| + scenario_string[scenario] |
| + "; current state " |
| + states[current_state] |
| + NL |
| + operations[operation] |
| + " returned instance in invalid state " |
| + states[new_state] |
| + "; expected state " |
| + states[expected_state]); |
| } |
| } |
| if (transaction.isActive()) transaction.rollback(); |
| } catch (Exception unexpected_exception) { |
| if (transaction.isActive()) transaction.rollback(); |
| appendMessage( |
| ASSERTION_FAILED |
| + NL |
| + "StateTransitionsReturnedObjects: " |
| + scenario_string[scenario] |
| + "; current state " |
| + states[current_state] |
| + NL |
| + operations[operation] |
| + "; unexpected exception caught: " |
| + unexpected_exception); |
| } |
| } |
| } |
| } |
| |
| /** */ |
| void printSituation() { |
| if (debug) { |
| logger.debug( |
| " (" |
| + scenario_string[scenario] |
| + ", initial state=" |
| + states[current_state] |
| + ", " |
| + operations[operation] |
| + ")"); |
| } |
| } |
| |
| /** */ |
| @SuppressWarnings("ThrowFromFinallyBlock") |
| Object applyOperation(int operation, StateTransitionObj stobj) { |
| Object result = null; |
| StateTransitionObj obj = stobj; |
| switch (operation) { |
| case MAKEPERSISTENTOPTIMISTIC: |
| case MAKEPERSISTENTDATASTORE: |
| result = pm.makePersistent(obj); |
| break; |
| |
| case DETACHCOPYOUTSIDETXNTRTRU: |
| case DETACHCOPYOUTSIDETXNTRFLS: |
| case DETACHCOPYINSIDEDATASTORETX: |
| case DETACHCOPYINSIDEOPTIMISTICTX: |
| result = pm.detachCopy(obj); |
| break; |
| |
| case SERIALIZEOUTSIDETX: |
| case SERIALIZEINSIDETX: |
| ObjectOutputStream oos = null; |
| ObjectInputStream ois = null; |
| try { |
| ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(); |
| oos = new ObjectOutputStream(byteArrayOutputStream); |
| oos.writeObject(obj); |
| ois = |
| new ObjectInputStream(new ByteArrayInputStream(byteArrayOutputStream.toByteArray())); |
| result = ois.readObject(); |
| } catch (IOException | ClassNotFoundException e) { |
| throw new JDOFatalException(e.getMessage(), e); |
| } finally { |
| try { |
| if (oos != null) { |
| oos.close(); |
| } |
| if (ois != null) { |
| ois.close(); |
| } |
| } catch (IOException e) { |
| throw new JDOFatalException(e.getMessage(), e); |
| } |
| } |
| break; |
| |
| default: |
| appendMessage( |
| ASSERTION_FAILED |
| + NL |
| + "StateTransitionsReturnedObjects: " |
| + scenario_string[scenario] |
| + "; internal error, illegal operation: " |
| + operation); |
| } |
| return result; |
| } |
| |
| /** |
| * Get an instance in the specified state. |
| * |
| * @param state the state |
| * @return instance in the specified state. |
| */ |
| public StateTransitionObj getInstanceInState(int state) { |
| switch (state) { |
| case TRANSIENT: |
| return getTransientInstance(); |
| case PERSISTENT_NEW: |
| return getPersistentNewInstance(); |
| case PERSISTENT_CLEAN: |
| return getPersistentCleanInstance(); |
| case PERSISTENT_DIRTY: |
| return getPersistentDirtyInstance(); |
| case HOLLOW: |
| return getHollowInstance(); |
| case TRANSIENT_CLEAN: |
| return getTransientCleanInstance(); |
| case TRANSIENT_DIRTY: |
| return getTransientDirtyInstance(); |
| case PERSISTENT_NEW_DELETED: |
| return getPersistentNewDeletedInstance(); |
| case PERSISTENT_DELETED: |
| return getPersistentDeletedInstance(); |
| case PERSISTENT_NONTRANSACTIONAL: |
| return getPersistentNontransactionalInstance(); |
| case PERSISTENT_NONTRANSACTIONAL_DIRTY: |
| return getPersistentNontransactionalDirtyInstance(); |
| case DETACHED_CLEAN: |
| return getDetachedCleanInstance(); |
| case DETACHED_DIRTY: |
| return getDetachedDirtyInstance(); |
| default: |
| return null; |
| } |
| } |
| |
| /** |
| * @return transient instance |
| */ |
| public StateTransitionObj getTransientInstance() { |
| StateTransitionObj obj = new StateTransitionObj(23); |
| int curr = currentState(obj); |
| if (curr != TRANSIENT) { |
| if (debug) { |
| logger.debug( |
| "StateTransitionsReturnedObjects: Unable to create transient instance, state is " |
| + states[curr]); |
| } |
| return null; |
| } |
| return obj; |
| } |
| |
| /** |
| * @return persistent new instance |
| */ |
| public StateTransitionObj getPersistentNewInstance() { |
| StateTransitionObj obj = getTransientInstance(); |
| if (obj == null) return null; |
| pm.makePersistent(obj); // should transition to persistent-new |
| int curr = currentState(obj); |
| if (curr != PERSISTENT_NEW) { |
| if (debug) { |
| logger.debug( |
| "StateTransitionsReturnedObjects: Unable to create persistent-new instance" |
| + " from transient instance via makePersistent(), state is " |
| + states[curr]); |
| } |
| return null; |
| } |
| return obj; |
| } |
| |
| /** |
| * @return persistent clean instance |
| */ |
| public StateTransitionObj getPersistentCleanInstance() { |
| StateTransitionObj obj = getHollowInstance(); |
| if (obj == null) return null; |
| StateTransitionObj sto = obj; |
| sto.readField(); |
| int curr = currentState(sto); |
| if (curr != PERSISTENT_CLEAN) { |
| if (debug) { |
| logger.debug( |
| "StateTransitionsReturnedObjects: Unable to create persistent-clean instance" |
| + " from a hollow instance by reading a field, state is " |
| + states[curr]); |
| } |
| return null; |
| } |
| return obj; |
| } |
| |
| /** |
| * @return persistent dirty instance |
| */ |
| public StateTransitionObj getPersistentDirtyInstance() { |
| StateTransitionObj obj = getHollowInstance(); |
| if (obj == null) return null; |
| StateTransitionObj pcobj = obj; |
| pcobj.writeField(23); |
| int curr = currentState(obj); |
| if (curr != PERSISTENT_DIRTY) { |
| if (debug) { |
| logger.debug( |
| "StateTransitionsReturnedObjects: Unable to create persistent-dirty instance" |
| + " from a hollow instance by writing a field, state is " |
| + states[curr]); |
| } |
| return null; |
| } |
| return obj; |
| } |
| |
| /** |
| * @return hollow instance |
| */ |
| public StateTransitionObj getHollowInstance() { |
| if (!transaction.isActive()) transaction.begin(); |
| if (!transaction.isActive()) |
| if (debug) logger.debug("getHollowInstance: Transaction should be active, but it is not"); |
| |
| Extent<StateTransitionObj> extent = pm.getExtent(StateTransitionObj.class, false); |
| Iterator<StateTransitionObj> iter = extent.iterator(); |
| if (!iter.hasNext()) { |
| if (debug) logger.debug("Extent for StateTransitionObj should not be empty"); |
| return null; |
| } |
| StateTransitionObj obj = iter.next(); |
| |
| pm.makeTransactional(obj); |
| transaction.setRetainValues(false); |
| transaction.commit(); // This should put the instance in the HOLLOW state |
| |
| prepareTransactionAndJDOSettings(transaction); |
| |
| int curr = currentState(obj); |
| if (curr != HOLLOW && curr != PERSISTENT_NONTRANSACTIONAL) { |
| if (debug) { |
| logger.debug( |
| "getHollowInstance: Attempt to get hollow instance via accessing extent failed, state is " |
| + states[curr]); |
| } |
| return null; |
| } |
| return obj; |
| } |
| |
| /** |
| * @return transient clean instance |
| */ |
| public StateTransitionObj getTransientCleanInstance() { |
| StateTransitionObj obj = getTransientInstance(); |
| if (obj == null) return null; |
| pm.makeTransactional(obj); |
| int curr = currentState(obj); |
| if (curr != TRANSIENT_CLEAN) { |
| if (debug) { |
| logger.debug( |
| "StateTransitionsReturnedObjects: Unable to create transient-clean instance" |
| + " from a transient instance via makeTransactional(), state is " |
| + states[curr]); |
| } |
| return null; |
| } |
| return obj; |
| } |
| |
| /** |
| * @return transient dirty instance |
| */ |
| public StateTransitionObj getTransientDirtyInstance() { |
| StateTransitionObj obj = getTransientCleanInstance(); |
| if (obj == null) return null; |
| StateTransitionObj pcobj = obj; |
| pcobj.writeField(23); |
| int curr = currentState(obj); |
| if (curr != TRANSIENT_DIRTY) { |
| if (debug) { |
| logger.debug( |
| "StateTransitionsReturnedObjects: Unable to create transient-dirty instance" |
| + " from a transient-clean instance via modifying a field, state is " |
| + states[curr]); |
| } |
| return null; |
| } |
| return obj; |
| } |
| |
| /** |
| * @return persistent new deleted instance |
| */ |
| public StateTransitionObj getPersistentNewDeletedInstance() { |
| StateTransitionObj obj = getPersistentNewInstance(); |
| if (obj == null) return null; |
| pm.deletePersistent(obj); // should transition to persistent-new-deleted |
| int curr = currentState(obj); |
| if (curr != PERSISTENT_NEW_DELETED) { |
| if (debug) { |
| logger.debug( |
| "StateTransitionsReturnedObjects: Unable to create persistent-new-deleted instance" |
| + " from a persistent-new instance via deletePersistent, state is " |
| + states[curr]); |
| } |
| return null; |
| } |
| return obj; |
| } |
| |
| /** |
| * @return persistent deleted instance |
| */ |
| public StateTransitionObj getPersistentDeletedInstance() { |
| StateTransitionObj obj = getHollowInstance(); |
| if (obj == null) return null; |
| pm.deletePersistent(obj); |
| int curr = currentState(obj); |
| if (curr != PERSISTENT_DELETED) { |
| if (debug) { |
| logger.debug( |
| "StateTransitionsReturnedObjects: Unable to create persistent-deleted instance" |
| + " from a persistent instance via deletePersistent(), state is " |
| + states[curr]); |
| } |
| return null; |
| } |
| return obj; |
| } |
| |
| /** |
| * @return persistent nontransactional instance |
| */ |
| public StateTransitionObj getPersistentNontransactionalInstance() { |
| StateTransitionObj obj = getHollowInstance(); |
| if (obj == null) return null; |
| boolean nontransactionalRead = pm.currentTransaction().getNontransactionalRead(); |
| pm.currentTransaction().setNontransactionalRead(true); |
| obj.readField(); |
| pm.makeNontransactional(obj); |
| pm.currentTransaction().setNontransactionalRead(nontransactionalRead); |
| int curr = currentState(obj); |
| if (curr != PERSISTENT_NONTRANSACTIONAL && curr != HOLLOW) { |
| if (debug) { |
| logger.debug( |
| "StateTransitionsReturnedObjects: Unable to create persistent-nontransactional instance" |
| + " from a persistent-clean instance via makeNontransactional(), state is " |
| + states[curr]); |
| } |
| return null; |
| } |
| return obj; |
| } |
| |
| /** |
| * @return persistent nontransactional dirty instance |
| */ |
| public StateTransitionObj getPersistentNontransactionalDirtyInstance() { |
| StateTransitionObj obj = getPersistentNontransactionalInstance(); |
| if (obj == null) return null; |
| obj.writeField(10000); |
| int curr = currentState(obj); |
| if (curr != PERSISTENT_NONTRANSACTIONAL_DIRTY) { |
| if (debug) { |
| logger.debug( |
| "StateTransitionsReturnedObjects: Unable to create persistent-nontransactional-dirty instance" |
| + " from a persistent-clean instance via makeNontransactional()/JDOHelper.makeDirty," |
| + " state is " |
| + states[curr]); |
| } |
| return null; |
| } |
| return obj; |
| } |
| |
| /** |
| * @return detached clean instance |
| */ |
| public StateTransitionObj getDetachedCleanInstance() { |
| StateTransitionObj obj = getHollowInstance(); |
| if (obj == null) return null; |
| obj = pm.detachCopy(obj); |
| int curr = currentState(obj); |
| if (curr != DETACHED_CLEAN) { |
| if (debug) { |
| logger.debug( |
| "StateTransitionsReturnedObjects: Unable to create detached-clean instance" |
| + " from a persistent-clean instance via detachCopy," |
| + " state is " |
| + states[curr]); |
| } |
| return null; |
| } |
| return obj; |
| } |
| |
| /** |
| * @return detached dirty instance |
| */ |
| public StateTransitionObj getDetachedDirtyInstance() { |
| StateTransitionObj obj = getHollowInstance(); |
| if (obj == null) return null; |
| obj = pm.detachCopy(obj); |
| obj.writeField(1000); |
| int curr = currentState(obj); |
| if (curr != DETACHED_DIRTY) { |
| if (debug) { |
| logger.debug( |
| "StateTransitionsReturnedObjects: Unable to create detached-dirty instance" |
| + " from a persistent-clean instance via detachCopy/persistent field modification," |
| + " state is " |
| + states[curr]); |
| } |
| return null; |
| } |
| return obj; |
| } |
| } |
