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    1   /*
    2    * Licensed to the Apache Software Foundation (ASF) under one or more
    3    * contributor license agreements.  See the NOTICE file distributed with
    4    * this work for additional information regarding copyright ownership.
    5    * The ASF licenses this file to You under the Apache License, Version 2.0
    6    * (the "License"); you may not use this file except in compliance with
    7    * the License.  You may obtain a copy of the License at
    8    * 
    9    *      http://www.apache.org/licenses/LICENSE-2.0
   10    * 
   11    * Unless required by applicable law or agreed to in writing, software
   12    * distributed under the License is distributed on an "AS IS" BASIS,
   13    * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   14    * See the License for the specific language governing permissions and
   15    * limitations under the License.
   16    */
   17   
   18   
   19   package org.apache.catalina.session;
   20   
   21   /**
   22    * Implementation of the <b>Manager</b> interface that makes use of
   23    * a Store to swap active Sessions to disk. It can be configured to
   24    * achieve several different goals:
   25    *
   26    * <li>Persist sessions across restarts of the Container</li>
   27    * <li>Fault tolerance, keep sessions backed up on disk to allow
   28    *     recovery in the event of unplanned restarts.</li>
   29    * <li>Limit the number of active sessions kept in memory by
   30    *     swapping less active sessions out to disk.</li>
   31    *
   32    * @version $Revision: 467222 $
   33    * @author Kief Morris (kief@kief.com)
   34    */
   35   
   36   public final class PersistentManager extends PersistentManagerBase {
   37   
   38   
   39       // ----------------------------------------------------- Instance Variables
   40   
   41   
   42       /**
   43        * The descriptive information about this implementation.
   44        */
   45       private static final String info = "PersistentManager/1.0";
   46   
   47   
   48       /**
   49        * The descriptive name of this Manager implementation (for logging).
   50        */
   51       protected static String name = "PersistentManager";
   52   
   53   
   54       // ------------------------------------------------------------- Properties
   55   
   56   
   57       /**
   58        * Return descriptive information about this Manager implementation and
   59        * the corresponding version number, in the format
   60        * <code>&lt;description&gt;/&lt;version&gt;</code>.
   61        */
   62       public String getInfo() {
   63   
   64           return (info);
   65   
   66       }
   67   
   68       /**
   69        * Return the descriptive short name of this Manager implementation.
   70        */
   71       public String getName() {
   72   
   73           return (name);
   74   
   75       }
   76    }
   77   

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