xref: /openjdk10/langtools/src/jdk.javadoc/share/classes/com/sun/javadoc/ProgramElementDoc.java

/*
 * Copyright (c) 1998, 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
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 */

package com.sun.javadoc;

/**
 * Represents a java program element: class, interface, field,
 * constructor, or method.
 * This is an abstract class dealing with information common to
 * these elements.
 *
 * @see MemberDoc
 * @see ClassDoc
 *
 * @author Robert Field
 */
public interface ProgramElementDoc extends Doc {

    /**
     * Get the containing class or interface of this program element.
     *
     * @return a ClassDoc for this element's containing class or interface.
     * If this is a top-level class or interface, return null.
     */
    ClassDoc containingClass();

    /**
     * Get the package that this program element is contained in.
     *
     * @return a PackageDoc for this element containing package.
     * If in the unnamed package, this PackageDoc will have the
     * name "".
     */
    PackageDoc containingPackage();

    /**
     * Get the fully qualified name of this program element.
     * For example, for the class {@code java.util.Hashtable},
     * return "java.util.Hashtable".
     * <p>
     * For the method {@code bar()} in class {@code Foo}
     * in the unnamed package, return "Foo.bar".
     *
     * @return the qualified name of the program element as a String.
     */
    String qualifiedName();

    /**
     * Get the modifier specifier integer.
     *
     * @see java.lang.reflect.Modifier
     *
     * @return Get the modifier specifier integer.
     */
    int modifierSpecifier();

    /**
     * Get modifiers string.
     * For example, for:
     * <pre>
     *   public abstract int foo() { ... }
     * </pre>
     * return "public abstract".
     * Annotations are not included.
     *
     * @return "public abstract".
     */
    String modifiers();

    /**
     * Get the annotations of this program element.
     * Return an empty array if there are none.
     *
     * @return the annotations of this program element.
     * @since 1.5
     */
    AnnotationDesc[] annotations();

    /**
     * Return true if this program element is public.
     *
     * @return true if this program element is public.
     */
    boolean isPublic();

    /**
     * Return true if this program element is protected.
     *
     * @return true if this program element is protected.
     */
    boolean isProtected();

    /**
     * Return true if this program element is private.
     *
     * @return true if this program element is private.
     */
    boolean isPrivate();

    /**
     * Return true if this program element is package private.
     *
     * @return true if this program element is package private.
     */
    boolean isPackagePrivate();
    /**
     * Return true if this program element is static.
     *
     * @return true if this program element is static.
     */
    boolean isStatic();

    /**
     * Return true if this program element is final.
     *
     * @return true if this program element is final.
     */
    boolean isFinal();
}