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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.eclipse.aether.named;
20  
21  /**
22   * A factory of {@link NamedLock}s.
23   */
24  public interface NamedLockFactory {
25      /**
26       * Creates or reuses existing {@link NamedLock}. Returns instance MUST BE treated as "resource", best in
27       * try-with-resource block.
28       *
29       * @param name the lock name, must not be {@code null}.
30       * @return named lock instance, never {@code null}.
31       */
32      NamedLock getLock(String name);
33  
34      /**
35       * Performs a clean shut down of the factory.
36       */
37      void shutdown();
38  }