Java tutorial
/* * Copyright (c) 2005, 2017, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package javax.tools; import java.io.IOException; import java.util.Iterator; import java.util.Objects; import java.util.ServiceLoader; import java.util.Set; import javax.tools.JavaFileObject.Kind; /** * Forwards calls to a given file manager. Subclasses of this class * might override some of these methods and might also provide * additional fields and methods. * * @param <M> the kind of file manager forwarded to by this object * @author Peter von der Ahé * @since 1.6 */ public class ForwardingJavaFileManager<M extends JavaFileManager> implements JavaFileManager { /** * The file manager which all methods are delegated to. */ protected final M fileManager; /** * Creates a new instance of ForwardingJavaFileManager. * @param fileManager delegate to this file manager */ protected ForwardingJavaFileManager(M fileManager) { this.fileManager = Objects.requireNonNull(fileManager); } /** * @throws SecurityException {@inheritDoc} * @throws IllegalStateException {@inheritDoc} */ public ClassLoader getClassLoader(Location location) { return fileManager.getClassLoader(location); } /** * @throws IOException {@inheritDoc} * @throws IllegalStateException {@inheritDoc} */ public Iterable<JavaFileObject> list(Location location, String packageName, Set<Kind> kinds, boolean recurse) throws IOException { return fileManager.list(location, packageName, kinds, recurse); } /** * @throws IllegalStateException {@inheritDoc} */ public String inferBinaryName(Location location, JavaFileObject file) { return fileManager.inferBinaryName(location, file); } /** * @throws IllegalArgumentException {@inheritDoc} */ public boolean isSameFile(FileObject a, FileObject b) { return fileManager.isSameFile(a, b); } /** * @throws IllegalArgumentException {@inheritDoc} * @throws IllegalStateException {@inheritDoc} */ public boolean handleOption(String current, Iterator<String> remaining) { return fileManager.handleOption(current, remaining); } public boolean hasLocation(Location location) { return fileManager.hasLocation(location); } public int isSupportedOption(String option) { return fileManager.isSupportedOption(option); } /** * @throws IllegalArgumentException {@inheritDoc} * @throws IllegalStateException {@inheritDoc} */ public JavaFileObject getJavaFileForInput(Location location, String className, Kind kind) throws IOException { return fileManager.getJavaFileForInput(location, className, kind); } /** * @throws IllegalArgumentException {@inheritDoc} * @throws IllegalStateException {@inheritDoc} */ public JavaFileObject getJavaFileForOutput(Location location, String className, Kind kind, FileObject sibling) throws IOException { return fileManager.getJavaFileForOutput(location, className, kind, sibling); } /** * @throws IllegalArgumentException {@inheritDoc} * @throws IllegalStateException {@inheritDoc} */ public FileObject getFileForInput(Location location, String packageName, String relativeName) throws IOException { return fileManager.getFileForInput(location, packageName, relativeName); } /** * @throws IllegalArgumentException {@inheritDoc} * @throws IllegalStateException {@inheritDoc} */ public FileObject getFileForOutput(Location location, String packageName, String relativeName, FileObject sibling) throws IOException { return fileManager.getFileForOutput(location, packageName, relativeName, sibling); } public void flush() throws IOException { fileManager.flush(); } public void close() throws IOException { fileManager.close(); } /** * @since 9 * @spec JPMS */ public Location getLocationForModule(Location location, String moduleName) throws IOException { return fileManager.getLocationForModule(location, moduleName); } /** * @since 9 * @spec JPMS */ public Location getLocationForModule(Location location, JavaFileObject fo) throws IOException { return fileManager.getLocationForModule(location, fo); } /** * @since 9 * @spec JPMS */ public <S> ServiceLoader<S> getServiceLoader(Location location, Class<S> service) throws IOException { return fileManager.getServiceLoader(location, service); } /** * @since 9 * @spec JPMS */ public String inferModuleName(Location location) throws IOException { return fileManager.inferModuleName(location); } /** * @since 9 * @spec JPMS */ public Iterable<Set<Location>> listLocationsForModules(Location location) throws IOException { return fileManager.listLocationsForModules(location); } /** * @since 9 */ public boolean contains(Location location, FileObject fo) throws IOException { return fileManager.contains(location, fo); } }