| /* |
| * 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.commons.configuration2.builder; |
| |
| import org.apache.commons.configuration2.event.EventListenerList; |
| |
| /** |
| * <p> |
| * Definition of an interface that is evaluated by a |
| * {@link ConfigurationBuilder} to initialize event listeners. |
| * </p> |
| * <p> |
| * This interface allows a convenient initialization of a configuration builder |
| * with event listeners to be registered at the managed configuration object. |
| * The {@code configure()} method of {@link BasicConfigurationBuilder} checks |
| * whether a parameters object passed to it implements this interface. If this |
| * is the case, all event listeners defined by the object are added to the |
| * internal list managed by the builder. They are then automatically registered |
| * at the managed configuration when it is created. When using a corresponding |
| * implementation the configuration of event listeners can be done in the same |
| * fluent API style as the other initialization of the configuration builder. |
| * </p> |
| * |
| * @version $Id$ |
| * @since 2.0 |
| */ |
| public interface EventListenerProvider |
| { |
| /** |
| * Returns an {@code EventListenerList} object with information about event |
| * listener registrations. All listeners contained in this object are added |
| * to the processing {@code ConfigurationBuilder}. |
| * |
| * @return the {@code EventListenerList} with event listener registrations |
| * (must not be <b>null</b>) |
| */ |
| EventListenerList getListeners(); |
| } |