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Subject: RE: Problem getting JCS to work
Date: Mon, 19 Jun 2006 10:29:13 +0100
Message-ID: 
 <DB7BEF2CBAD51844A7FD7035E30154810EC815D1@gbr2-ldn05.uk.mizuho-sc.com>
Thread-Topic: Problem getting JCS to work
Thread-Index: AcaTgdVBewMB/0ymShqo3Vt70jeSjQAAMtgw
From: "Horton Simon" <Simon.Horton@uk.mizuho-sc.com>
To: "JCS Users List" <jcs-users@jakarta.apache.org>

Hi,

Try changing your Person class so that it implements Serializable.

Regards,
Simon

-----Original Message-----
From: Sreelakshmi Dokkara [mailto:Sreelakshmi.Dokkara@lntinfotech.com]=20
Sent: Monday, June 19, 2006 10:26 AM
To: jcs-users@jakarta.apache.org
Subject: Problem getting JCS to work

Hi Aaron,
I'm getting the CacheException while trying to cache an object.=20
Here's the piece of code I've been working with.

import org.apache.jcs.JCS;
import org.apache.jcs.access.exception.CacheException;

public class Main {

        /**
         * @param args
         */
        public static void main(String[] args) {
=20
                Person mary_ =3D new Person("MARY");
=20
                  //Create an instance of the Cache Hnadler
              JCS cache =3D null;
              try{
                  cache =3D JCS.getInstance("testCache1");
                  if(null =3D=3D cache)
                  {System.out.println("cache=3D null");}

                  //Insert the objects into the cache
                  if(null =3D=3D mary_)
                  {
                          System.out.println("the object is null");
                  }
                  System.out.println("b4 put");=20
                  String key =3D mary_.toString();
                  System.out.println(key);
                  cache.put(key, mary_);
                  System.out.println("after put");
              }
              catch(CacheException CE)
              {
                  System.out.println("caught exception "+
CE.getCause());
              }
              if(null !=3D cache)
              {
                  cache.get(mary_.toString());=20
              }
        }

}
class Person
{
        private String name;
        Person(String str)
        {
                name =3D str;
        }
=20
        public String toString()
        {
                return name;
        }
}

My configuration file is as follows:
(no new lines this time)

# DEFAULT CACHE REGION=20
jcs.default=3DDC
jcs.default.cacheattributes=3Dorg.apache.jcs.engine.CompositeCacheAttribut
es
jcs.default.cacheattributes.MaxObjects=3D1000
jcs.default.cacheattributes.MemoryCacheName=3Dorg.apache.jcs.engine.memory
.lru.LRUMemoryCache

# PRE-DEFINED CACHE REGIONS=20
jcs.region.testCache1=3DDC
jcs.region.testCache1.cacheattributes=3Dorg.apache.jcs.engine.CompositeCac
heAttributes
jcs.region.testCache1.cacheattributes.MaxObjects=3D1000
jcs.region.testCache1.cacheattributes.MemoryCacheName=3Dorg.apache.jcs.eng
ine.memory.lru.LRUMemoryCache


# AVAILABLE AUXILIARY CACHES=20
jcs.auxiliary.DC=3Dorg.apache.jcs.auxiliary.disk.indexed.IndexedDiskCacheF
actory
jcs.auxiliary.DC.attributes=3Dorg.apache.jcs.auxiliary.disk.indexed.Indexe
dDiskCacheAttributes
jcs.auxiliary.DC.attributes.DiskPath=3D${user.dir}
jcs.auxiliary.DC.attributes.MaxPurgatorySize=3D10000000
jcs.auxiliary.DC.attributes.MaxKeySize=3D1000000
jcs.auxiliary.DC.attributes.MaxRecycleBinSize=3D5000
jcs.auxiliary.DC.attributes.OptimizeAtRemoveCount=3D300000

And.. here's the output:
Jun 19, 2006 2:48:34 PM=20
org.apache.jcs.engine.control.CompositeCacheManager configure
INFO: Creating cache manager from config file: /cache.ccf
Jun 19, 2006 2:48:34 PM
org.apache.jcs.utils.threadpool.ThreadPoolManager=20
loadConfig
INFO: thread_pool.default PoolConfiguration =3D useBoundary =3D=20
[true]boundarySize =3D [2000]maximumPoolSize =3D [150]minimumPoolSize =3D=
=20
[4]keepAliveTime =3D [300000]whenBlockedPolicy =3D [RUN]startUpSize =3D [4]
Jun 19, 2006 2:48:34 PM=20
org.apache.jcs.engine.control.CompositeCacheConfigurator=20
setDefaultAuxValues
INFO: Setting default auxiliaries to DC
Jun 19, 2006 2:48:34 PM=20
org.apache.jcs.engine.control.CompositeCacheConfigurator=20
setDefaultCompositeCacheAttributes
INFO: setting defaultCompositeCacheAttributes to [ useLateral =3D true,=20
useRemote =3D true, useDisk =3D true, maxObjs =3D 1000, maxSpoolPerRun =3D =
-1 ]
Jun 19, 2006 2:48:34 PM=20
org.apache.jcs.engine.control.CompositeCacheConfigurator=20
parseElementAttributes
INFO: No special ElementAttribute class defined for key=20
[jcs.default.elementattributes], using default class.
Jun 19, 2006 2:48:34 PM=20
org.apache.jcs.engine.control.CompositeCacheConfigurator=20
setDefaultElementAttributes
INFO: setting defaultElementAttributes to [ IS_LATERAL =3D true, IS_SPOOL
=3D=20
true, IS_REMOTE =3D true, IS_ETERNAL =3D true, MaxLifeSeconds =3D -1, IdleT=
ime
=3D=20
-1, CreateTime =3D 1150708714948, LastAccessTime =3D 1150708714948,=20
getTimeToLiveSeconds() =3D -1, createTime =3D 1150708714948 ]
Jun 19, 2006 2:48:34 PM=20
org.apache.jcs.engine.control.CompositeCacheConfigurator=20
parseElementAttributes
INFO: No special ElementAttribute class defined for key=20
[jcs.region.testCache1.elementattributes], using default class.
Jun 19, 2006 2:48:34 PM org.apache.jcs.engine.memory.lru.LRUMemoryCache=20
initialize
INFO: initialized LRUMemoryCache for testCache1
Jun 19, 2006 2:48:34 PM org.apache.jcs.engine.control.CompositeCache=20
<init>
INFO: Constructed cache with name: testCache1
Jun 19, 2006 2:48:35 PM=20
org.apache.jcs.auxiliary.disk.indexed.IndexedDiskCache <init>
INFO: Cache file root directory: C:\EclipseForJava\JCSLab
Jun 19, 2006 2:48:35 PM=20
org.apache.jcs.auxiliary.disk.indexed.IndexedDiskCache initKeyMap
INFO: Set maxKeySize to: '1000000'
Jun 19, 2006 2:48:35 PM=20
org.apache.jcs.auxiliary.disk.indexed.IndexedDiskCache initRecycleBin
INFO: Set recycle max Size to MaxRecycleBinSize: '5000'
Jun 19, 2006 2:48:35 PM=20
org.apache.jcs.engine.control.CompositeCacheConfigurator parseRegions
INFO: Parsed regions [testCache1]
Jun 19, 2006 2:48:35 PM=20
org.apache.jcs.engine.control.CompositeCacheConfigurator doConfigure
INFO: Finished configuration in 203 ms.
b4 put
MARY
caught exception null
Jun 19, 2006 2:48:35 PM=20
org.apache.jcs.auxiliary.disk.indexed.IndexedDiskCache$ShutdownHook run
INFO: Disk cache was not shutdown properly.  Will try to dispose.

NOTE: The above program works fine if I cache simple strings but it
fails=20
if I use objects as in the above program.

Could you help me with this please..

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