| /* |
| * 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.brooklyn.api.mgmt; |
| |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.apache.brooklyn.api.entity.Entity; |
| import org.apache.brooklyn.api.entity.Group; |
| import org.apache.brooklyn.api.sensor.Sensor; |
| import org.apache.brooklyn.api.sensor.SensorEvent; |
| import org.apache.brooklyn.api.sensor.SensorEventListener; |
| |
| /** |
| * This is the context through which an {@link Entity} can manage its subscriptions. |
| */ |
| public interface SubscriptionContext { |
| /** |
| * As {@link SubscriptionManager#subscribe(Map, Entity, Sensor, SensorEventListener)} with default subscription parameters for this context |
| */ |
| <T> SubscriptionHandle subscribe(Map<String, ?> flags, Entity producer, Sensor<T> sensor, SensorEventListener<? super T> listener); |
| |
| /** @see #subscribe(Map, Entity, Sensor, SensorEventListener) */ |
| <T> SubscriptionHandle subscribe(Entity producer, Sensor<T> sensor, SensorEventListener<? super T> listener); |
| |
| /** @see #subscribe(Map, Entity, Sensor, SensorEventListener) */ |
| <T> SubscriptionHandle subscribeToChildren(Map<String, Object> flags, Entity parent, Sensor<T> sensor, SensorEventListener<? super T> listener); |
| |
| /** @see #subscribe(Map, Entity, Sensor, SensorEventListener) */ |
| <T> SubscriptionHandle subscribeToChildren(Entity parent, Sensor<T> sensor, SensorEventListener<? super T> listener); |
| |
| /** @see #subscribe(Map, Entity, Sensor, SensorEventListener) */ |
| <T> SubscriptionHandle subscribeToMembers(Map<String, Object> flags, Group parent, Sensor<T> sensor, SensorEventListener<? super T> listener); |
| |
| /** @see #subscribe(Map, Entity, Sensor, SensorEventListener) */ |
| <T> SubscriptionHandle subscribeToMembers(Group parent, Sensor<T> sensor, SensorEventListener<? super T> listener); |
| |
| /** @see SubscriptionManager#unsubscribe(SubscriptionHandle) */ |
| boolean unsubscribe(SubscriptionHandle subscriptionId); |
| |
| /** causes all subscriptions to be deregistered |
| * @return number of subscriptions removed */ |
| int unsubscribeAll(); |
| |
| /** @see SubscriptionManager#publish(SensorEvent) */ |
| <T> void publish(SensorEvent<T> event); |
| |
| /** Return the subscriptions associated with this context */ |
| Set<SubscriptionHandle> getSubscriptions(); |
| } |