dxdiskhashnodebranch.java

Java的面向对象数据库系统的源代码

// You can redistribute this software and/or modify it under the terms of
// the Ozone Library License version 1 published by ozone-db.org.
//
// The original code and portions created by SMB are
// Copyright (C) 1997-@year@ by SMB GmbH. All rights reserved.
//
// $Id: DxDiskHashNodeBranch.java,v 1.1 2001/12/18 10:31:30 per_nyfelt Exp $

package org.ozoneDB.DxLib;

import java.io.*;


/**
 * Tied with referens to a subTable without a key and without a date
 * @author <a href="http://www.softwarebuero.de/">SMB</a>
 * @author <a href="http://www.medium.net/">Medium.net</a>
 */
public class DxDiskHashNodeBranch extends DxDiskHashNode implements Externalizable {
    
    final static long serialVersionUID = 1;

    protected DxDiskHashMap grandParent;
    protected DxDiskSubTable subTable;
    
    
    public DxDiskHashNodeBranch(DxDiskHashMap grandParent) {
        this.grandParent	=	grandParent;
    }
    
    
    public void empty() {
        subTable = null;
    } 
    
    
    public void writeExternal( ObjectOutput out ) throws IOException {
        subTable.writeExternal( out );
    } 
    
    
    public void readExternal( ObjectInput in ) throws IOException, ClassNotFoundException {
        subTable = new DxDiskSubTable(grandParent);
        subTable.readExternal( in );
    } 
}