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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.api.spi;
20  
21  import java.util.Collection;
22  
23  import org.apache.maven.api.ExtensibleEnum;
24  import org.apache.maven.api.annotations.Consumer;
25  import org.apache.maven.api.annotations.Experimental;
26  import org.apache.maven.api.annotations.Nonnull;
27  
28  /**
29   * An SPI interface to extend Maven with a new enum value.
30   *
31   * @param <T> The type of extensible enum to extend
32   */
33  @Experimental
34  @Consumer
35  public interface ExtensibleEnumProvider<T extends ExtensibleEnum> extends SpiService {
36  
37      /**
38       * Registers new values for the T extensible enum.
39       *
40       * @return a collection of T instances to register
41       */
42      @Nonnull
43      Collection<T> provides();
44  }