| // Copyright 2008 The Apache Software Foundation |
| // |
| // 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.apache.tapestry5.internal.services; |
| |
| import org.apache.tapestry5.annotations.ImmutableSessionPersistedObject; |
| import org.apache.tapestry5.services.SessionPersistedObjectAnalyzer; |
| |
| /** |
| * Default catch-all implementation of {@link org.apache.tapestry5.services.SessionPersistedObjectAnalyzer}. |
| * |
| * @since 5.1.0.0 |
| */ |
| public class DefaultSessionPersistedObjectAnalyzer implements SessionPersistedObjectAnalyzer<Object> |
| { |
| /** |
| * An object is dirty <em>unless</em> it has the {@link org.apache.tapestry5.annotations.ImmutableSessionPersistedObject} |
| * annotation. |
| * |
| * @param object to analyze |
| * @return false if immutable, true otherwise |
| */ |
| public boolean isDirty(Object object) |
| { |
| boolean immutable = object.getClass().getAnnotation(ImmutableSessionPersistedObject.class) != null; |
| |
| // Imuutable objects are always clean, others are assumed dirty. |
| // Go implement OptimizedSessionPersistedObject if you don't like it. |
| |
| return !immutable; |
| } |
| } |