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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.maven.model.building;
20  
21  /**
22   * Assists in firing events from a generic method by abstracting from the actual callback method to be called on the
23   * listener.
24   *
25   * @author Benjamin Bentmann
26   */
27  interface ModelBuildingEventCatapult {
28  
29      /**
30       * Notifies the specified listener of the given event.
31       *
32       * @param listener The listener to notify, must not be {@code null}.
33       * @param event The event to fire, must not be {@code null}.
34       */
35      void fire(ModelBuildingListener listener, ModelBuildingEvent event);
36  
37      ModelBuildingEventCatapult BUILD_EXTENSIONS_ASSEMBLED = ModelBuildingListener::buildExtensionsAssembled;
38  }