01: /*
02: * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
03: *
04: * This file is part of Resin(R) Open Source
05: *
06: * Each copy or derived work must preserve the copyright notice and this
07: * notice unmodified.
08: *
09: * Resin Open Source is free software; you can redistribute it and/or modify
10: * it under the terms of the GNU General Public License as published by
11: * the Free Software Foundation; either version 2 of the License, or
12: * (at your option) any later version.
13: *
14: * Resin Open Source is distributed in the hope that it will be useful,
15: * but WITHOUT ANY WARRANTY; without even the implied warranty of
16: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17: * of NON-INFRINGEMENT. See the GNU General Public License for more
18: * details.
19: *
20: * You should have received a copy of the GNU General Public License
21: * along with Resin Open Source; if not, write to the
22: *
23: * Free Software Foundation, Inc.
24: * 59 Temple Place, Suite 330
25: * Boston, MA 02111-1307 USA
26: *
27: * @author Scott Ferguson
28: */
29:
30: package com.caucho.management.server;
31:
32: import com.caucho.jmx.Description;
33:
34: /**
35: * Management interface for the block manager used by the proxy cache
36: * and persistent sessions.
37: *
38: * <pre>
39: * resin:type=BlockManager
40: * </pre>
41: */
42: @Description("Resin's backing store block manager")
43: public interface BlockManagerMXBean extends ManagedObjectMXBean {
44:
45: /**
46: * Returns the number of blocks in the block manager
47: */
48: @Description("The number of blocks in the block manager")
49: public long getBlockCapacity();
50:
51: //
52: // Statistics
53: //
54:
55: /**
56: * Returns the block LRU cache hit count.
57: */
58: @Description("The hit count is the number of block accesses found in" + " the cache.")
59: public long getHitCountTotal();
60:
61: /**
62: * Returns the proxy cache miss count.
63: */
64: @Description("The hit count is the number of block accesses missing in" + " the cache.")
65: public long getMissCountTotal();
66: }
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