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Java > Open Source Codes > org > myoodb > core > command > GetRootCommand


1 ///////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2003-@year@ by Thomas M. Hazel, MyOODB (www.myoodb.org)
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//
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// All Rights Reserved
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License and GNU Library
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// General Public License as published by the Free Software Foundation;
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// either version 2, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License and GNU Library General Public License
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// for more details.
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//
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// You should have received a copy of the GNU General Public License
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// and GNU Library General Public License along with this program; if
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// not, write to the Free Software Foundation, 675 Mass Ave, Cambridge,
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// MA 02139, USA.
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//
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///////////////////////////////////////////////////////////////////////////////
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package org.myoodb.core.command;
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26 import java.io.*;
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28 import org.myoodb.core.*;
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30 public class GetRootCommand extends AbstractCommand implements Externalizable
31 {
32     private String JavaDoc m_rootName;
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34     public GetRootCommand()
35     {
36     }
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38     public GetRootCommand(String JavaDoc rootName)
39     {
40         m_rootName = rootName;
41     }
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43     public void process(AbstractTransaction tx) throws Exception JavaDoc
44     {
45         m_result = tx.getRoot(m_rootName);
46     }
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48     public void writeExternal(ObjectOutput out) throws IOException
49     {
50         out.writeObject(m_rootName);
51     }
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53     public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException JavaDoc
54     {
55         m_rootName = (String JavaDoc) in.readObject();
56     }
57 }
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