1 /*
   2  * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 
  27 package com.sun.org.glassfish.external.statistics;
  28 
  29 /**
  30  * Custom statistic type created for the Sun ONE Application Server.
  31  * The goal is to be able to represent changing attribute values that are strings
  32  * in the form of Statistics. Semantically, it is analogous to a {@link CountStatistic},
  33  * the only difference being in the value that is returned. Unlike a CountStatistic
  34  * (which always is unidirectional), this Statistic type is not having any
  35  * specified direction, simply because there is no natural order. An example
  36  * of the values that an instance of this statistic type can assume is: A State
  37  * Statistic which can have "CONNECTED, CLOSED, DISCONNECTED" as the permissible
  38  * values and the current value can be any one of them (and them only).
  39  * The permissible values are upto a particular implementation.
  40  */
  41 
  42 public interface StringStatistic extends Statistic {
  43     /**
  44      * Returns the String value of the statistic
  45      */
  46     String getCurrent();
  47 }