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jlechner |
/* ThreadId.java -- thread IDs
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Copyright (C) 2005 Free Software Foundation
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.classpath.jdwp.id;
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import gnu.classpath.jdwp.JdwpConstants;
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import gnu.classpath.jdwp.exception.InvalidThreadException;
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/**
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* A class which represents a JDWP thread id
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*
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* @author Keith Seitz <keiths@redhat.com>
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*/
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public class ThreadId
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extends ObjectId
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{
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/**
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* The object class that this id represents
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*/
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public static final Class typeClass = Thread.class;
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/**
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* Constructs a new <code>ThreadId</code>
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*/
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public ThreadId ()
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{
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super (JdwpConstants.Tag.THREAD);
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}
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/**
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* Gets the Thread represented by this ID
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*
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* @throws InvalidThreadException if thread is garbage collected,
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* exited, or otherwise invalid
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*/
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public Thread getThread ()
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throws InvalidThreadException
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{
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Thread thread = (Thread) _reference.get ();
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/* Spec says if thread is null, not valid, or exited,
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throw invalid thread */
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// FIXME: not valid? exited? Is this check valid?
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if (thread == null || !thread.isAlive ())
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throw new InvalidThreadException (getId ());
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return thread;
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}
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}
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