Examples of org.eclipse.persistence.descriptors.ClassDescriptor.usesOptimisticLocking()

Package org.eclipse.persistence.descriptors

Class org.eclipse.persistence.descriptors.ClassDescriptor

Examples of org.eclipse.persistence.descriptors.ClassDescriptor.usesOptimisticLocking()

org.eclipse.persistence.descriptors.ClassDescriptor.usesOptimisticLocking()
PUBLIC: Return true if the receiver uses write (optimistic) locking.

        // exists, and keep firing the notification up the chain.
        // Otherwise, do nothing.
        if (parentObj != null) {
            // Need to check if we are a non cascade locking node within a 
            // cascade locking policy chain.
            if (realParentDescriptor.usesOptimisticLocking() && realParentDescriptor.getOptimisticLockingPolicy().isCascaded()) {
                ObjectChangeSet ocs = realParentDescriptor.getObjectBuilder().createObjectChangeSet(parentObj, changeSet, uow);
                
                if (!ocs.hasForcedChangesFromCascadeLocking()) {
                    ocs.setHasForcedChangesFromCascadeLocking(true);
                    changeSet.addObjectChangeSet(ocs, uow, true);

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            // Check for null because when there is NoIdentityMap, CacheKey will be null
            if (key != null) {
                key.setReadTime(objectDescriptor.getReadTime());
            }
            if (descriptor.usesOptimisticLocking()) {
                getSession().getIdentityMapAccessor().updateWriteLockValue(primaryKey, clientSideDomainObject.getClass(), objectDescriptor.getWriteLockValue());
            }
        }
        return clientSideDomainObject;
    }

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        if (changeSet.getSynchronizationType() == ClassDescriptor.INVALIDATE_CHANGED_OBJECTS) {
            getSession().getIdentityMapAccessorInstance().invalidateObject(changeSet.getPrimaryKeys(), localClassType);
            return original;
    }
        
        if ((original != null) && descriptor.usesOptimisticLocking()) {
            if ((session.getCommandManager() != null) && (session.getCommandManager().getCommandConverter() != null)) {
                // Rebuild the version value from user format i.e the change set was converted to XML
                changeSet.rebuildWriteLockValueFromUserFormat(descriptor, session);
            }
            int difference = descriptor.getOptimisticLockingPolicy().getVersionDifference(changeSet.getWriteLockValue(), original, changeSet.getPrimaryKeys(), session);

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            // Must ensure the get and put of the cache occur as a single operation.
            // Cache key hold a reference to a concurrency manager which is used for the lock/release operation
            CacheKey cacheKey = session.getIdentityMapAccessorInstance().acquireLock(primaryKey, original.getClass(), descriptor);
            try {
                if (descriptor.usesOptimisticLocking()) {
                    if (descriptor.getOptimisticLockingPolicy().isChildWriteLockValueGreater(session, primaryKey, original.getClass(), changeSet)) {
                        cacheKey.setWriteLockValue(changeSet.getWriteLockValue());
                    }
                }
                cacheKey.setObject(original);

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            descriptor.getObjectChangePolicy().enableEventProcessing(clone);
        }
        //update the change policies with the refresh
        descriptor.getObjectChangePolicy().revertChanges(clone, descriptor, (UnitOfWorkImpl)this.getSession(), ((UnitOfWorkImpl)this.getSession()).getCloneMapping());
        Vector primaryKey = getSession().keyFromObject(clone);
        if (descriptor.usesOptimisticLocking()) {
            descriptor.getOptimisticLockingPolicy().mergeIntoParentCache((UnitOfWorkImpl)getSession(), primaryKey, clone);
        }


        CacheKey parentCacheKey = ((UnitOfWorkImpl)getSession()).getParent().getIdentityMapAccessorInstance().getCacheKeyForObjectForLock(primaryKey, clone.getClass(), descriptor);
        CacheKey uowCacheKey = getSession().getIdentityMapAccessorInstance().getCacheKeyForObjectForLock(primaryKey, clone.getClass(), descriptor);

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        // Must ensure the get and put of the cache occur as a single operation.
        // Cache key hold a reference to a concurrency manager which is used for the lock/release operation
        CacheKey cacheKey = unitOfWork.getParent().getIdentityMapAccessorInstance().acquireLock(primaryKey, original.getClass(), descriptor);
        try {
            if (descriptor.usesOptimisticLocking()) {
                cacheKey.setObject(original);
                cacheKey.setWriteLockValue(unitOfWork.getIdentityMapAccessor().getWriteLockValue(original));
            } else {
                // Always put in the parent im for root because it must now be persistent.
                cacheKey.setObject(original);

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            if ((writeQuery.isUserDefined() || writeQuery.isCallQuery()) && getSession().isUnitOfWork()) {
                writeQuery.setModifyRow(descriptor.getObjectBuilder().buildRow(object, getSession()));
            }


            // 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.

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            int rowCount = updateObject().intValue();


            if (rowCount < 1) {
                session.getEventManager().noRowsModified(writeQuery, object);
            }
            if (descriptor.usesOptimisticLocking()) {
                descriptor.getOptimisticLockingPolicy().validateUpdate(rowCount, object, writeQuery);
            }
        }


        commitManager.markPostModifyCommitInProgress(object);

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     */
    public boolean usesOptimisticLocking() {
        Iterator descriptors = getDescriptors().values().iterator();
        while (descriptors.hasNext()) {
            ClassDescriptor descriptor = (ClassDescriptor)descriptors.next();
            if (descriptor.usesOptimisticLocking()) {
                return true;
            }
        }
        return false;
    }

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            if (rowCount < 1) {
                session.getEventManager().noRowsModified(this, object);
            }


            if (descriptor.usesOptimisticLocking()) {
                descriptor.getOptimisticLockingPolicy().validateDelete(rowCount, object, this);
            }


            commitManager.markPostModifyCommitInProgress(getObject());
            // Verify if deep shallow modify is turned on

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