001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *   http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.eclipse.aether.internal.impl.synccontext.named;
020
021import org.eclipse.aether.RepositorySystemSession;
022
023/**
024 * Factory for {@link NamedLockFactoryAdapter}.
025 *
026 * @since 1.9.1
027 */
028public interface NamedLockFactoryAdapterFactory {
029    /**
030     * Creates or returns pre-created {@link NamedLockFactoryAdapter}, never {@code null}.
031     * <p>
032     * It is left at the discretion of the implementation what happens on this method call: it may create always new
033     * instances, or return the same instance. One thing is required for the implementation: to shut down any name
034     * lock factory it used during any invocation of this method.
035     */
036    NamedLockFactoryAdapter getAdapter(RepositorySystemSession session);
037}