/*
 * 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
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 */

package jdk.internal.reflect;

import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import jdk.internal.misc.Unsafe;

Base class for jdk.internal.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.)
/**
 * Base class for jdk.internal.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;
    }
}