| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.unomi.api.services; |
| |
| import java.util.Set; |
| |
| /** |
| * A service to share configuration properties with other bundles. It also support listeners that will be called whenever |
| * a property is added/updated/removed. Simply register a service with the @link ConfigSharingServiceConfigChangeListener interface and it will |
| * be automatically picked up. |
| */ |
| public interface ConfigSharingService { |
| |
| Object getProperty(String name); |
| Object setProperty(String name, Object value); |
| boolean hasProperty(String name); |
| Object removeProperty(String name); |
| Set<String> getPropertyNames(); |
| |
| class ConfigChangeEvent { |
| public enum ConfigChangeEventType { ADDED, UPDATED, REMOVED }; |
| private ConfigChangeEventType eventType; |
| private String name; |
| private Object oldValue; |
| private Object newValue; |
| |
| public ConfigChangeEvent(ConfigChangeEventType eventType, String name, Object oldValue, Object newValue) { |
| this.eventType = eventType; |
| this.name = name; |
| this.oldValue = oldValue; |
| this.newValue = newValue; |
| } |
| |
| public ConfigChangeEventType getEventType() { |
| return eventType; |
| } |
| |
| public String getName() { |
| return name; |
| } |
| |
| public Object getOldValue() { |
| return oldValue; |
| } |
| |
| public Object getNewValue() { |
| return newValue; |
| } |
| } |
| |
| interface ConfigChangeListener { |
| void configChanged(ConfigChangeEvent configChangeEvent); |
| } |
| |
| } |