gammaobjectinputstream.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 Core License version 1 published by ozone-db.org.
//
// Copyright (C) 2003-@year@, Leo Mekenkamp. All rights reserved.
//
// $Id: GammaObjectInputStream.java,v 1.1.2.1 2004/04/10 10:06:51 per_nyfelt Exp $

package org.ozoneDB.core.storage.gammaStore;

import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectStreamClass;
import java.io.StreamCorruptedException;

/**
 *
 * @author Leo
 */
public class GammaObjectInputStream extends ObjectInputStream {
    
    private ObjectStreamClasses objectStreamClasses;
    
    public GammaObjectInputStream(InputStream in, ObjectStreamClasses objectStreamClasses) throws IOException {
        super(in);
        this.objectStreamClasses = objectStreamClasses;
    }
    
    protected ObjectStreamClass readClassDescriptor() throws IOException, ClassNotFoundException {
        int handle = readInt();
        ObjectStreamClass result = objectStreamClasses.getObjectStreamClass(handle);
        if (result == null) {
            throw new ClassNotFoundException("unknown class descriptor (" + handle + ")");
        }
        return result;
    }
    
    protected void readStreamHeader() throws IOException, StreamCorruptedException {
    }
    
}