| // Copyright 2006 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.ioc.internal.util.CollectionFactory; |
| import org.apache.tapestry5.services.PersistentFieldBundle; |
| import org.apache.tapestry5.services.PersistentFieldChange; |
| |
| import java.util.Collection; |
| import java.util.Map; |
| |
| public class PersistentFieldBundleImpl implements PersistentFieldBundle |
| { |
| /** |
| * Keyed on componentId + fieldName. |
| */ |
| private final Map<String, Object> values = CollectionFactory.newMap(); |
| |
| public PersistentFieldBundleImpl(Collection<PersistentFieldChange> changes) |
| { |
| for (PersistentFieldChange change : changes) |
| { |
| String key = buildKey(change.getComponentId(), change.getFieldName()); |
| |
| values.put(key, change.getValue()); |
| } |
| } |
| |
| private String buildKey(String componentId, String fieldName) |
| { |
| StringBuilder builder = new StringBuilder(); |
| if (componentId != null) builder.append(componentId); |
| builder.append(':'); |
| builder.append(fieldName); |
| |
| return builder.toString(); |
| } |
| |
| public boolean containsValue(String componentId, String fieldName) |
| { |
| String key = buildKey(componentId, fieldName); |
| |
| return values.containsKey(key); |
| } |
| |
| public Object getValue(String componentId, String fieldName) |
| { |
| String key = buildKey(componentId, fieldName); |
| |
| return values.get(key); |
| } |
| |
| } |