Package org.eclipse.persistence.internal.descriptors

Examples of org.eclipse.persistence.internal.descriptors.OptimisticLockingPolicy

970
971
972
973
974
975
976
977
978
979
980
                // but PESSIMISTIC and NONE. Validate only those report items that
                // are expression builders (ignoring the others)
                if (! lockModeType.equals(PESSIMISTIC_READ) && ! lockModeType.equals(PESSIMISTIC_WRITE) && ! lockModeType.equals(NONE)) {
                    for (ReportItem reportItem : getItems()) {
                        if (reportItem.getAttributeExpression() != null && reportItem.getAttributeExpression().isExpressionBuilder()) {
                            OptimisticLockingPolicy lockingPolicy = reportItem.getDescriptor().getOptimisticLockingPolicy();
                       
                            if (lockingPolicy == null || !(lockingPolicy instanceof VersionLockingPolicy)) {
                                return true;
                            }
                        }
View Full Code Here
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
    public void prepareUpdateAll() {
        ExpressionBuilder builder = ((UpdateAllQuery)getQuery()).getExpressionBuilder();       
        HashMap updateClauses = ((UpdateAllQuery)getQuery()).getUpdateClauses();
       
        // Add a statement to update the optimistic locking field if their is one.
        OptimisticLockingPolicy policy = getDescriptor().getOptimisticLockingPolicy();
        if (policy != null) {
            if(policy.getWriteLockField() != null) {
                Expression writeLock = builder.getField(policy.getWriteLockField());
                Expression writeLockUpdateExpression = policy.getWriteLockUpdateExpression(builder, getQuery().getSession());
                if (writeLockUpdateExpression != null) {
                    // clone it to keep user's original data intact
                    updateClauses = (HashMap)updateClauses.clone();
                    updateClauses.put(writeLock, writeLockUpdateExpression);
                }
View Full Code Here
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
     * lock mode because of validation. Callers to this method should check the
     * return value and throw the necessary exception.
     */
    public boolean setLockModeType(String lockModeType, AbstractSession session) {
        if (lockModeType != null) {
            OptimisticLockingPolicy lockingPolicy = session.getDescriptor(getReferenceClass()).getOptimisticLockingPolicy();
       
            if (lockingPolicy == null || !(lockingPolicy instanceof VersionLockingPolicy)) {
                if (! lockModeType.equals(PESSIMISTIC_READ) && ! lockModeType.equals(PESSIMISTIC_WRITE) && ! lockModeType.equals(NONE)) {
                    // Any locking mode other than PESSIMISTIC and NONE needs a
                    // version locking policy to be present, otherwise return a
View Full Code Here
831
832
833
834
835
836
837
838
839
840
841
    public void lock(Object entity, LockModeType lockMode) {
        try {
            verifyOpen();
            RepeatableWriteUnitOfWork context = getActivePersistenceContext(checkForTransaction(!isExtended()));
            ClassDescriptor descriptor = context.getDescriptor(entity);
            OptimisticLockingPolicy lockingPolicy = descriptor.getOptimisticLockingPolicy();
            if ((lockingPolicy == null) || !(lockingPolicy instanceof VersionLockingPolicy)) {
                throw new PersistenceException(ExceptionLocalization.buildMessage("ejb30-wrong-lock_called_without_version_locking-index", null));
            }
            context.forceUpdateToVersionField(entity, (lockMode == LockModeType.WRITE));
        } catch (RuntimeException e) {
View Full Code Here
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
            if (objectDescriptor == null){
                //the object must have been added concurently before serialize generate a new ObjectDescriptor on this side
                objectDescriptor = new ObjectDescriptor();
                objectDescriptor.setKey(primaryKey);
                objectDescriptor.setObject(serverSideDomainObject);
                OptimisticLockingPolicy policy = descriptor.getOptimisticLockingPolicy();
                if (policy == null){
                    objectDescriptor.setWriteLockValue(null);
                }else{
                    objectDescriptor.setWriteLockValue(policy.getBaseValue());
                }
            }
            //query is used for the cascade policy only
            org.eclipse.persistence.queries.ObjectLevelReadQuery query = new org.eclipse.persistence.queries.ReadObjectQuery();
            query.setCascadePolicy(this.getCascadePolicy());
            getSession().getIdentityMapAccessorInstance().putInIdentityMap(serverSideDomainObject, primaryKey, objectDescriptor.getWriteLockValue(), objectDescriptor.getReadTime(), descriptor);
            descriptor.getObjectBuilder().fixObjectReferences(serverSideDomainObject, getObjectDescriptors(), getObjectsAlreadyMerged(), query, (RemoteSession)getSession());
            clientSideDomainObject = serverSideDomainObject;
        } else {
            // merge into the clientSideDomainObject from the serverSideDomainObject;
            // use clientSideDomainObject as the backup, as anything different should be merged
            descriptor.getObjectBuilder().mergeIntoObject(clientSideDomainObject, false, serverSideDomainObject, this);
            ObjectDescriptor objectDescriptor = (ObjectDescriptor)getObjectDescriptors().get(serverSideDomainObject);
            if (objectDescriptor == null){
                //the object must have been added concurently before serialize generate a new ObjectDescriptor on this side
                objectDescriptor = new ObjectDescriptor();
                objectDescriptor.setKey(primaryKey);
                objectDescriptor.setObject(serverSideDomainObject);
                OptimisticLockingPolicy policy = descriptor.getOptimisticLockingPolicy();
                if (policy == null){
                    objectDescriptor.setWriteLockValue(null);
                }else{
                    objectDescriptor.setWriteLockValue(policy.getBaseValue());
                }
            }
            CacheKey key = getSession().getIdentityMapAccessorInstance().getCacheKeyForObjectForLock(primaryKey, clientSideDomainObject.getClass(), descriptor);

            // Check for null because when there is NoIdentityMap, CacheKey will be null
View Full Code Here
155
156
157
158
159
160
161
162
163
164
165
166
        attributeToChanges.put(attributeName, changeRecord);
        dirtyUOWChangeSet();
       
        // now let's do some house keeping.
        DatabaseMapping mapping = changeRecord.getMapping();
        OptimisticLockingPolicy olp = getDescriptor().getOptimisticLockingPolicy();
        if (olp != null){
            if ((olp.shouldUpdateVersionOnOwnedMappingChange() && mapping.isOwned()) || (olp.shouldUpdateVersionOnMappingChange())){
                this.shouldModifyVersionField = true;  // must update version field when owned mapping changes
            }
        }
    }
View Full Code Here
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
                writeQuery.setModifyRow(descriptor.getObjectBuilder().buildRow(object, getSession(), WriteType.UNDEFINED));
            }

            // Update the write lock field if required.
            if (descriptor.usesOptimisticLocking()) {
                OptimisticLockingPolicy policy = descriptor.getOptimisticLockingPolicy();
                policy.addLockValuesToTranslationRow(writeQuery);

                if (!getModifyRow().isEmpty() || shouldModifyVersionField.booleanValue()) {
                    // Update the row with newer lock value.
                    policy.updateRowAndObjectForUpdate(writeQuery, object);
                } else if (!shouldModifyVersionField.booleanValue() && (policy instanceof VersionLockingPolicy)) {
                    // Add the existing write lock value to the for a "read" lock (requires something to update).
                    ((VersionLockingPolicy)policy).writeLockValueIntoRow(writeQuery, object);
                }
            }
View Full Code Here
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
        if (!getModifyRow().isEmpty() || shouldModifyVersionField != null || changeSet.hasCmpPolicyForcedUpdate()) {
            // If user defined the entire row is required. Must not be built until change is known.
            if (writeQuery.isUserDefined() || writeQuery.isCallQuery()) {
                writeQuery.setModifyRow(descriptor.getObjectBuilder().buildRow(object, session, WriteType.UNDEFINED));
            }
            OptimisticLockingPolicy lockingPolicy = descriptor.getOptimisticLockingPolicy();

            // Update the write lock field if required.
            if (lockingPolicy != null) {
                lockingPolicy.addLockValuesToTranslationRow(writeQuery);
                // update the row and object if shouldModifyVersionField is non null and has a value of true (a forced update),
                // or if there is no forced update and modifyRow has modifications
                if ((shouldModifyVersionField != null && shouldModifyVersionField) || (shouldModifyVersionField == null && !getModifyRow().isEmpty())) {
                    // Update the row with newer lock value.
                    lockingPolicy.updateRowAndObjectForUpdate(writeQuery, object);
                } else if (!shouldModifyVersionField && (lockingPolicy instanceof VersionLockingPolicy)) {
                    // Add the existing write lock value to the for a "read" lock (requires something to update).
                    ((VersionLockingPolicy)lockingPolicy).writeLockValueIntoRow(writeQuery, object);
                }
            }

            // PERF: Avoid events if no listeners.
            if (eventManager.hasAnyEventListeners()) {
                DescriptorEvent event = new DescriptorEvent(DescriptorEventManager.AboutToUpdateEvent, writeQuery);
                event.setRecord(getModifyRow());
                eventManager.executeEvent(event);
            }

            if (QueryMonitor.shouldMonitor()) {
                QueryMonitor.incrementUpdate(getWriteObjectQuery());
            }
            int rowCount = updateObject().intValue();

            if (rowCount < 1) {
                if (session.hasEventManager()) {
                    session.getEventManager().noRowsModified(writeQuery, object);
                }
            }
            if (lockingPolicy != null) {
                lockingPolicy.validateUpdate(rowCount, object, writeQuery);
            }
        }

        commitManager.markPostModifyCommitInProgress(object);
View Full Code Here
709
710
711
712
713
714
715
716
717
718
719
720
721
            ClassDescriptor descriptor = (ClassDescriptor)iterator.next();
           
            if(descriptor.getCMPPolicy() == null) {
                descriptor.setCMPPolicy(new CMP3Policy());
            }
            OptimisticLockingPolicy olp = descriptor.getOptimisticLockingPolicy();
            if (olp != null && olp.getLockOnChangeMode() == null){
                olp.setLockOnChangeMode(LockOnChange.OWNING);
            }
        }

        // TODO: Look into setting a CMPPolicy on the MappedSuperclass descriptors.
        // Will require some tweaking however to ensure the primary key fields are
View Full Code Here
183
184
185
186
187
188
189
190
191
192
193
     *  @return boolean indicating whether or not attribute is
     *          a version attribute
     */
    public boolean isVersion() {
        if (getDescriptor().usesOptimisticLocking() && getMapping().isDirectToFieldMapping()) {
            OptimisticLockingPolicy policy = getDescriptor().getOptimisticLockingPolicy();
           
            return policy.getWriteLockField().equals(((AbstractDirectMapping) getMapping()).getField());
        }
        return false;
    }
View Full Code Here
TOP

Related Classes of org.eclipse.persistence.internal.descriptors.OptimisticLockingPolicy

  • org.eclipse.persistence.descriptors.ReturningPolicy
  • org.eclipse.persistence.internal.jpa.EntityManagerImpl
  • org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl
  • org.eclipse.persistence.internal.jpa.metamodel.SingularAttributeImpl
  • org.eclipse.persistence.internal.queries.DatabaseQueryMechanism
  • org.eclipse.persistence.internal.queries.ExpressionQueryMechanism
  • org.eclipse.persistence.internal.sessions.MergeManager
  • org.eclipse.persistence.internal.sessions.ObjectChangeSet
  • org.eclipse.persistence.queries.ObjectLevelReadQuery
  • org.eclipse.persistence.queries.ReportQuery
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.