| /* |
| * Copyright (c) 2004, 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 sun.reflect; |
| |
| import java.lang.reflect.Field; |
| import java.lang.reflect.Modifier; |
| import sun.misc.Unsafe; |
| |
| /** |
| * Base class for sun.misc.Unsafe-based FieldAccessors for fields with |
| * final or volatile qualifiers. These differ from unqualified |
| * versions in that (1) they check for read-only status (2) they use |
| * the volatile forms of Unsafe get/put methods. (When accessed via |
| * reflection, finals act as slightly "lighter" forms of volatiles. So |
| * the volatile forms are heavier than necessary in terms of |
| * underlying reordering rules and memory barriers, but preserve |
| * correctness.) |
| */ |
| |
| abstract class UnsafeQualifiedFieldAccessorImpl |
| extends UnsafeFieldAccessorImpl |
| { |
| protected final boolean isReadOnly; |
| |
| UnsafeQualifiedFieldAccessorImpl(Field field, boolean isReadOnly) { |
| super(field); |
| this.isReadOnly = isReadOnly; |
| } |
| } |