/* 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.internal;
import com.db4o.*;
import com.db4o.internal.ids.*;
import com.db4o.internal.slots.*;
/**
* @exclude
*/
public abstract class LocalPersistentBase extends PersistentBase {
private final TransactionalIdSystem _idSystem;
public LocalPersistentBase(TransactionalIdSystem idSystem){
_idSystem = idSystem;
}
public LocalPersistentBase(){
this(null);
}
public TransactionalIdSystem idSystem(Transaction trans) {
if(_idSystem != null){
return _idSystem;
}
return super.idSystem(trans);
}
@Override
protected ByteArrayBuffer readBufferById(Transaction trans) {
Slot slot = idSystem(trans).currentSlot(getID());
if(DTrace.enabled){
DTrace.SLOT_READ.logLength(getID(), slot);
}
return ((LocalObjectContainer)trans.container()).readBufferBySlot(slot);
}
}