// CacheSerializer.java
// $Id: CacheSerializer.java,v 1.6 2000/08/16 21:38:03 ylafon Exp $
// (c) COPYRIGHT MIT, INRIA and Keio, 1999.
// Please first read the full copyright statement in file COPYRIGHT.html
package org.w3c.www.protocol.http.cache;
import java.io.IOException;
import java.io.Writer;
import java.io.Reader;
import org.w3c.tools.resources.AttributeHolder;
public abstract class CacheSerializer {
/**
* Save a Generation, using a specified writer
* @param generation, a CacheGeneration, the generation to be saved
* @param writer, a Writer, the writer used to serialize this generation
*/
public abstract void writeGeneration(CacheGeneration generation,
Writer writer)
throws IOException;
/**
* Save the list of generations (except the 'description' Generation)
* @param store, the Store to be dumped
* @param writer a Writer, used to dump
*/
public abstract void writeGenerationList(CacheStore store)
throws IOException;
/**
* Read a Generation, using a specified reader
* @param generation, a CacheGeneration, the generation to be saved
* @param reader, the Reader used to read this generation
*/
public abstract CacheGeneration readGeneration(CacheGeneration generation,
Reader reader)
throws IOException;
/**
* Read a Generation containing only CachedResourceDescription,
* using a specified reader.
* @param generation, a CacheGeneration, the generation to be 'loaded'
* @param reader, the Reader used to read this generation
*/
public abstract CacheGeneration readDescription(CacheGeneration generation,
Reader reader)
throws IOException;
/**
* Save an Attribute Holder
* @param holder, the attribute holder
* @param writer, a Writer, the writer used to serialize this generation
*/
public abstract void write(AttributeHolder holder,
Writer writer)
throws IOException;
/**
* Read an Attribute Holder
* @param holder, the attribute holder
* @param reader, a Reader, the reader used to read the holder
*/
public abstract AttributeHolder read(Reader reader)
throws IOException;
}
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