/* 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.io;
/**
* Strategy for file/byte array growth that will always double the current size
*/
public class DoublingGrowthStrategy implements GrowthStrategy {
public long newSize(long curSize, long requiredSize) {
if(curSize == 0) {
return requiredSize;
}
long newSize = curSize;
while(newSize < requiredSize) {
newSize *= 2;
}
return newSize;
}
}