/*
 * Copyright 1998-2001 Sun Microsystems, Inc.  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.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

package com.sun.jdi;

/**
 * Provides information on the accessibility of a type or type component.
 * Mirrors for program elements which allow an
 * an access specifier (private, protected, public) provide information
 * on that part of the declaration through this interface.
 *
 * @author Robert Field
 * @author Gordon Hirsch
 * @author James McIlree
 * @since  1.3
 */
public interface Accessible {

    /**
     * Returns the Java<sup><font size=-2>TM</font></sup>
     * programming language modifiers, encoded in an integer.
     * <p>
     * The modifier encodings are defined in the
     * <a href="http://java.sun.com/docs/books/vmspec/">Java Virtual Machine
     * Specification</a>, in the <code>access_flag</code> tables for
     * <a href="http://java.sun.com/docs/books/vmspec/2nd-edition/html/ClassFile.doc.html#75734">classes</a>,
     * <a href="http://java.sun.com/docs/books/vmspec/2nd-edition/html/ClassFile.doc.html#88358">fields</a>, and
     * <a href="http://java.sun.com/docs/books/vmspec/2nd-edition/html/ClassFile.doc.html#75568">methods</a>.
     */
    public int modifiers();

    /**
     * Determines if this object mirrors a private item.
     * For {@link ArrayType}, the return value depends on the
     * array component type. For primitive arrays the return value
     * is always false. For object arrays, the return value is the
     * same as would be returned for the component type.
     * For primitive classes, such as {@link java.lang.Integer#TYPE},
     * the return value is always false.
     *
     * @return <code>true</code> for items with private access;
     * <code>false</code> otherwise.
     */
    boolean isPrivate();

    /**
     * Determines if this object mirrors a package private item.
     * A package private item is declared with no access specifier.
     * For {@link ArrayType}, the return value depends on the
     * array component type. For primitive arrays the return value
     * is always false. For object arrays, the return value is the
     * same as would be returned for the component type.
     * For primitive classes, such as {@link java.lang.Integer#TYPE},
     * the return value is always false.
     *
     * @return <code>true</code> for items with package private access;
     * <code>false</code> otherwise.
     */
    boolean isPackagePrivate();

    /**
     * Determines if this object mirrors a protected item.
     * For {@link ArrayType}, the return value depends on the
     * array component type. For primitive arrays the return value
     * is always false. For object arrays, the return value is the
     * same as would be returned for the component type.
     * For primitive classes, such as {@link java.lang.Integer#TYPE},
     * the return value is always false.
     *
     * @return <code>true</code> for items with private access;
     * <code>false</code> otherwise.
     */
    boolean isProtected();

    /**
     * Determines if this object mirrors a public item.
     * For {@link ArrayType}, the return value depends on the
     * array component type. For primitive arrays the return value
     * is always true. For object arrays, the return value is the
     * same as would be returned for the component type.
     * For primitive classes, such as {@link java.lang.Integer#TYPE},
     * the return value is always true.
     *
     * @return <code>true</code> for items with public access;
     * <code>false</code> otherwise.
     */
    boolean isPublic();
}