PWCDnsStats


1   /*
2    * The contents of this file are subject to the terms 
3    * of the Common Development and Distribution License 
4    * (the License).  You may not use this file except in
5    * compliance with the License.
6    * 
7    * You can obtain a copy of the license at 
8    * https://glassfish.dev.java.net/public/CDDLv1.0.html or
9    * glassfish/bootstrap/legal/CDDLv1.0.txt.
10   * See the License for the specific language governing 
11   * permissions and limitations under the License.
12   * 
13   * When distributing Covered Code, include this CDDL 
14   * Header Notice in each file and include the License file 
15   * at glassfish/bootstrap/legal/CDDLv1.0.txt.  
16   * If applicable, add the following below the CDDL Header, 
17   * with the fields enclosed by brackets [] replaced by
18   * you own identifying information: 
19   * "Portions Copyrighted [year] [name of copyright owner]"
20   * 
21   * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
22   */
23  
24  /*
25   * Copyright 2004-2005 Sun Microsystems, Inc.  All rights reserved.
26   * Use is subject to license terms.
27   */
28  
29  /*
30   * PWCDnsStats.java
31   *
32   * Created on April 2, 2004, 10:37 AM
33   */
34  
35  package com.sun.enterprise.admin.monitor.stats;
36  
37  /**
38   *
39   * @author  nsegura
40   */
41  import javax.management.j2ee.statistics.Stats  ;
42  import javax.management.j2ee.statistics.CountStatistic  ;
43  
44  /** 
45   * The DNS Cache caches IP addresses and DNS names. The server’s DNS cache is
46   * disabled by default. A single cache entry represents a single IP address or DNS
47   * name lookup
48   */
49  public interface PWCDnsStats extends Stats   {
50      
51      /**
52       * Indicates whether the DNS cache is enabled or disable. Default is disabled.
53       * @return DNS cache enabled?
54       */
55      public CountStatistic   getFlagCacheEnabled();
56      
57      /** 
58       * The number of current cache entries
59       * @return current cache entries
60       */
61      public CountStatistic   getCountCacheEntries();
62      
63      /** 
64       * The maximum number of cache entries
65       * @return max cache entries
66       */
67      public CountStatistic   getMaxCacheEntries();
68      
69      /** 
70       * The number of cache hits
71       * @return cache hits
72       */
73      public CountStatistic   getCountCacheHits();
74      
75      /** 
76       * The number of cache misses
77       * @return cache misses
78       */
79      public CountStatistic   getCountCacheMisses();
80      
81      /** 
82       * Returns whether asynchronic lookup is enabled. 1 if true, 0 otherwise
83       * @return enabled
84       */
85      public CountStatistic   getFlagAsyncEnabled();
86      
87      /** 
88       * The total number of asynchronic name lookups
89       * @return asyn name lookups
90       */
91      public CountStatistic   getCountAsyncNameLookups();
92      
93      /** 
94       * The total number of asynchronic address lookups
95       * @return asyn address lookups
96       */
97      public CountStatistic   getCountAsyncAddrLookups();
98      
99      /** 
100      * The number of asynchronic lookups in progress
101      * @return async lookups in progress
102      */
103     public CountStatistic   getCountAsyncLookupsInProgress();
104     
105 }
106
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