/*
* Copyright (c) 2002-2009 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.kernel.impl.nioneo.store;
/**
* A persistence window encapsulates a part of the records (or blocks) in a
* store and makes it possible to read and write data to those records.
*/
public interface PersistenceWindow
{
/**
* Returns the underlying buffer to this persistence window.
*
* @return The underlying buffer
*/
public Buffer getBuffer();
public Buffer getOffsettedBuffer( int id );
public int getRecordSize();
/**
* Returns the current record/block position.
*
* @return The current position
*/
public long position();
/**
* Returns the size of this window meaning the number of records/blocks it
* encapsulates.
*
* @return The window size
*/
public int size();
public void force();
public void close();
}