/* 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.btree;
import com.db4o.foundation.*;
public interface BTreeRange {
/**
* Iterates through all the valid pointers in
* this range.
* @return an Iterator4 over BTreePointer value
*/
public Iterator4 pointers();
public Iterator4 keys();
public int size();
public BTreeRange greater();
public BTreeRange union(BTreeRange other);
public BTreeRange extendToLast();
public BTreeRange smaller();
public BTreeRange extendToFirst();
public BTreeRange intersect(BTreeRange range);
public BTreeRange extendToLastOf(BTreeRange upperRange);
public boolean isEmpty();
public void accept(BTreeRangeVisitor visitor);
public BTreePointer lastPointer();
}