/*

 * Copyright (c) 1999, 2011, 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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/*

 * This source code is provided to illustrate the usage of a given feature

 * or technique and has been deliberately simplified. Additional steps

 * required for a production-quality application, such as security checks,

 * input validation and proper error handling, might not be present in

 * this sample code.

 */

package com.sun.tools.example.debug.bdi;

import com.sun.jdi.*;

public class AccessWatchpointSpec extends WatchpointSpec {

    AccessWatchpointSpec(EventRequestSpecList specs,

                         ReferenceTypeSpec refSpec, String fieldId) {

        super(specs, refSpec,  fieldId);

    }

    /**

     * The 'refType' is known to match.

     */

   @Override

    void resolve(ReferenceType refType) throws InvalidTypeException,

                                             NoSuchFieldException {

        if (!(refType instanceof ClassType)) {

            throw new InvalidTypeException();

        }

        Field field = refType.fieldByName(fieldId);

        if (field == null) {

            throw new NoSuchFieldException(fieldId);

        }

        setRequest(refType.virtualMachine().eventRequestManager()

                   .createAccessWatchpointRequest(field));

    }

   @Override

    public boolean equals(Object obj) {

        return (obj instanceof AccessWatchpointSpec) && super.equals(obj);

    }

}