001/*
002 * Copyright 2012-2017 the original author or authors.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.springframework.boot.devtools.restart.classloader;
018
019/**
020 * A container for files that may be served from a {@link ClassLoader}. Can be used to
021 * represent files that have been added, modified or deleted since the original JAR was
022 * created.
023 *
024 * @author Phillip Webb
025 * @since 1.3.0
026 * @see ClassLoaderFile
027 */
028@FunctionalInterface
029public interface ClassLoaderFileRepository {
030
031        /**
032         * Empty {@link ClassLoaderFileRepository} implementation.
033         */
034        ClassLoaderFileRepository NONE = (name) -> null;
035
036        /**
037         * Return a {@link ClassLoaderFile} for the given name or {@code null} if no file is
038         * contained in this collection.
039         * @param name the name of the file
040         * @return a {@link ClassLoaderFile} or {@code null}
041         */
042        ClassLoaderFile getFile(String name);
043
044}