/* This file is part of the db4o object database http://www.db4o.com
Copyright (C) 2004 - 2011 Versant Corporation http://www.versant.com
db4o is free software; you can redistribute it and/or modify it under
the terms of version 3 of the GNU General Public License as published
by the Free Software Foundation.
db4o is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License along
with this program. If not, see http://www.gnu.org/licenses/. */
package com.db4o.typehandlers;
import com.db4o.marshall.*;
public interface InstantiatingTypeHandler extends ReferenceTypeHandler {
Object instantiate(ReadContext context);
/**
* gets called when an object is to be written to the database.
*
* The method must only write data necessary to re instantiate the object, usually
* the immutable bits of information held by the object. For value
* types that means their complete state.
*
* Mutable state (only allowed in reference types) must be handled
* during {@link ReferenceTypeHandler#activate(WriteContext)}
*
* @param context
* @param obj the object
*/
void writeInstantiation(WriteContext context, Object obj);
}