/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.management.server;
import com.caucho.jmx.Description;
/**
* Management interface for the block manager used by the proxy cache
* and persistent sessions.
*
* <pre>
* resin:type=BlockManager
* </pre>
*/
@Description("Resin's backing store block manager")
public interface BlockManagerMXBean extends ManagedObjectMXBean {
/**
* Returns the number of blocks in the block manager
*/
@Description("The number of blocks in the block manager")
public long getBlockCapacity();
//
// Statistics
//
/**
* Returns the block read count.
*/
@Description("The total blocks read from the backing")
public long getBlockReadCountTotal();
/**
* Returns the block write count.
*/
@Description("The total blocks written to the backing")
public long getBlockWriteCountTotal();
/**
* Returns the block LRU cache hit count.
*/
@Description("The hit count is the number of block accesses found in"
+ " the cache.")
public long getHitCountTotal();
/**
* Returns the proxy cache miss count.
*/
@Description("The hit count is the number of block accesses missing in"
+ " the cache.")
public long getMissCountTotal();
}