JDK14/Java14源码在线阅读

/*
 * Copyright (c) 2005, 2014, 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 javax.lang.model.element.NestingKind;
import javax.lang.model.element.Modifier;
import java.util.Objects;

/**
 * File abstraction for tools operating on Java™ programming language
 * source and class files.
 *
 * <p>All methods in this interface might throw a SecurityException if
 * a security exception occurs.
 *
 * <p>Unless explicitly allowed, all methods in this interface might
 * throw a NullPointerException if given a {@code null} argument.
 *
 * @author Peter von der Ah&eacute;
 * @author Jonathan Gibbons
 * @see JavaFileManager
 * @since 1.6
 */
public interface JavaFileObject extends FileObject {

    /**
     * Kinds of JavaFileObjects.
     */
    enum Kind {
        /**
         * Source files written in the Java programming language.  For
         * example, regular files ending with {@code .java}.
         */
        SOURCE(".java"),

        /**
         * Class files for the Java Virtual Machine.  For example,
         * regular files ending with {@code .class}.
         */
        CLASS(".class"),

        /**
         * HTML files.  For example, regular files ending with {@code
         * .html}.
         */
        HTML(".html"),

        /**
         * Any other kind.
         */
        OTHER("");
        /**
         * The extension which (by convention) is normally used for
         * this kind of file object.  If no convention exists, the
         * empty string ({@code ""}) is used.
         */
        public final String extension;
        private Kind(String extension) {
            this.extension = Objects.requireNonNull(extension);
        }
    }

    /**
     * Returns the kind of this file object.
     *
     * @return the kind
     */
    Kind getKind();

    /**
     * Checks if this file object is compatible with the specified
     * simple name and kind.  A simple name is a single identifier
     * (not qualified) as defined in
     * <cite>The Java&trade; Language Specification</cite>,
     * section 6.2 "Names and Identifiers".
     *
     * @param simpleName a simple name of a class
     * @param kind a kind
     * @return {@code true} if this file object is compatible; false
     * otherwise
     */
    boolean isNameCompatible(String simpleName, Kind kind);

    /**
     * Provides a hint about the nesting level of the class
     * represented by this file object.  This method may return
     * {@link NestingKind#MEMBER} to mean
     * {@link NestingKind#LOCAL} or {@link NestingKind#ANONYMOUS}.
     * If the nesting level is not known or this file object does not
     * represent a class file this method returns {@code null}.
     *

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