watchpointspec.java

jpda例子文件

/*
 * @(#)WatchpointSpec.java	1.12 03/01/23
 *
 * Copyright 2003 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
/*
 * Copyright (c) 1997-1999 by Sun Microsystems, Inc. All Rights Reserved.
 * 
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 * modify and redistribute this software in source and binary code form,
 * provided that i) this copyright notice and license appear on all copies of
 * the software; and ii) Licensee does not utilize the software in a manner
 * which is disparaging to Sun.
 * 
 * This software is provided "AS IS," without a warranty of any kind. ALL
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 * IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
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package com.sun.tools.example.debug.tty;

import com.sun.jdi.*;

abstract class WatchpointSpec extends EventRequestSpec {
    final String fieldId;

    WatchpointSpec(ReferenceTypeSpec refSpec, String fieldId) 
                                       throws MalformedMemberNameException {
        super(refSpec);
        this.fieldId = fieldId;
        if (!isJavaIdentifier(fieldId)) {
            throw new MalformedMemberNameException(fieldId);
        }
    }

    public int hashCode() {
        return refSpec.hashCode() + fieldId.hashCode() + 
            getClass().hashCode();
    }

    public boolean equals(Object obj) {
        if (obj instanceof WatchpointSpec) {
            WatchpointSpec watchpoint = (WatchpointSpec)obj;

            return fieldId.equals(watchpoint.fieldId) &&
                   refSpec.equals(watchpoint.refSpec) &&
                   getClass().equals(watchpoint.getClass());
        } else {
            return false;
        }
    }

    String errorMessageFor(Exception e) { 
        if (e instanceof NoSuchFieldException) {
            return (MessageOutput.format("No field in",
                                         new Object [] {fieldId, refSpec.toString()}));
        } else {
            return super.errorMessageFor(e);
        } 
    }
}