/* -*- tab-width: 4 -*-
*
* Electric(tm) VLSI Design System
*
* File: BTree.java
*
* Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
*
* Electric(tm) is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* Electric(tm) 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Electric(tm); see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, Mass 02111-1307, USA.
*/
package com.sun.electric.database.geometry.btree;
import java.io.*;
/**
* A PageStorage that can deallocate pages -- all pages with a larger
* page number are instantaneously renumbered! Users must beware of
* this.
*/
public interface PageStorageWithDeallocation {
// TO DO: provide an upcall to notify users that renumbering has occurred
public void discardPage(int page);
}