| /* |
| * Copyright (c) 2009, Rickard Öberg. All Rights Reserved. |
| * |
| * Licensed 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.qi4j.spi.entitystore; |
| |
| import org.qi4j.api.concern.ConcernOf; |
| import org.qi4j.api.injection.scope.Service; |
| import org.qi4j.spi.entity.EntityState; |
| import org.qi4j.spi.module.ModuleSpi; |
| |
| /** |
| * State change notification Concern. |
| */ |
| public abstract class StateChangeNotificationConcern |
| extends ConcernOf<EntityStoreSPI> |
| implements EntityStoreSPI |
| { |
| @Service |
| Iterable<StateChangeListener> listeners; |
| |
| @Override |
| public StateCommitter applyChanges( final EntityStoreUnitOfWork unitofwork, |
| final Iterable<EntityState> state |
| ) |
| { |
| final StateCommitter committer = next.applyChanges( unitofwork, state ); |
| return new StateCommitter() |
| { |
| @Override |
| public void commit() |
| { |
| for( StateChangeListener listener : listeners ) |
| { |
| listener.notifyChanges( state ); |
| } |
| committer.commit(); |
| } |
| |
| @Override |
| public void cancel() |
| { |
| committer.cancel(); |
| } |
| }; |
| } |
| } |