After adding jcs-cache line as below:
<class name="com.omnet.bean.Device" table="device">
<jcs-cache usage="read-write"/>
<id name="devId">
<column name="dev_id" sql-type="int" not-null="true"/>
<generator class="native"/>
</id>
...
</class>

then error occurs as beow:

08:36:54,490 INFO [Binder] Mapping class: com.omnet.bean.Device -> device
08:36:54,490 INFO [Configuration] creating JCS cache region: com.omnet.bean.Device, usage: read-write
08:36:54,508 ERROR [Configuration] Could not configure datastore from input stream
java.lang.NullPointerException
at org.apache.jcs.config.OptionConverter.findAndSubst(OptionConverter.java:241)
at org.apache.jcs.config.OptionConverter.instantiateByKey(OptionConverter.java:132)
at org.apache.jcs.engine.control.CompositeCacheConfigurator.parseElement
Attributes(CompositeCacheConfigurator.java:316)
at org.apache.jcs.engine.control.CompositeCacheConfigurator.parseRegion(
CompositeCacheConfigurator.java:207)
at org.apache.jcs.engine.control.CompositeCacheConfigurator.parseRegion(
CompositeCacheConfigurator.java:189)
at org.apache.jcs.engine.control.CompositeCacheManager.getCache(Composit
eCacheManager.java:302)
at org.apache.jcs.engine.control.CompositeCacheManager.getCache(CompositeCacheManager.java:261)
at org.apache.jcs.engine.control.CompositeCacheManager.getCache(CompositeCacheManager.java:254)
at org.apache.jcs.JCS.getInstance(JCS.java:103)
at net.sf.hibernate.cache.JCSCache.setRegion(JCSCache.java:22)
at net.sf.hibernate.cfg.Configuration.createJCSCache(Configuration.java:906)
at net.sf.hibernate.cfg.Binder.bindRootClass(Binder.java:282)
at net.sf.hibernate.cfg.Binder.bindRoot(Binder.java:1094)
at net.sf.hibernate.cfg.Configuration.add(Configuration.java:230)
at net.sf.hibernate.cfg.Configuration.addInputStream(Configuration.java:252)
at net.sf.hibernate.cfg.Configuration.addResource(Configuration.java:273)
at net.sf.hibernate.jmx.HibernateService.buildSessionFactory(HibernateService.java:160)
at net.sf.hibernate.jmx.HibernateService.start(HibernateService.java:131)
.......

if remove <jcs-cache usage="read-write"/> all works fine !

the cache.ccf is as below:

# DEFAULT CACHE REGION (memory cache)
jcs.default=DC
jcs.default.cacheattributes=org.apache.jcs.engine.CompositeCacheAttributes
jcs.default.cacheattributes.MaxObjects=2000
jcs.default.cacheattributes.MemoryCacheName=org.apache.jcs.engine.memory.lru.LRUMemoryCache
jcs.default.elementattributes=org.apache.jcs.engine.ElementAttributes
jcs.default.elementattributes.IsEternal=false
jcs.default.elementattributes.MaxLifeSeconds=240
jcs.default.elementattributes.IdleTime=1800
jcs.default.elementattributes.IsSpool=true
jcs.default.elementattributes.IsRemote=false
jcs.default.elementattributes.IsLateral=false

# System CACHE REGION
jcs.system.groupIdCache=DC
jcs.system.groupIdCache.cacheattributes=org.apache.jcs.engine.CompositeCacheAttributes
jcs.system.groupIdCache.cacheattributes.MaxObjects=10000
jcs.system.groupIdCache.cacheattributes.MemoryCacheName=org.apache.jcs.engine.memory.lru.LRUMemoryCache

#Auxiliary CACHE (disk cache)
#jcs.auxiliary.DC=org.apache.jcs.auxiliary.disk.indexed.IndexedDiskCacheFactory
#jcs.auxiliary.DC.attributes=org.apache.jcs.auxiliary.disk.indexed.IndexedDiskCacheAttributes
#jcs.auxiliary.DC.attributes.DiskPath=cache

The post has been viewed for about 11 times but there is no answer ?!

donot i describe it clearly ?



regards!

I don't have the sourcecode of JCS in front of me - but I would suggest you go to: org.apache.jcs.config.OptionConverter.findAndSubst(OptionConverter.java:241) abd see what it says. (and if that does not help - then step up through the stacktrace to see what is actuaylly happening)

My guess is JCS is looking for some required configuraiton option/file that is not available which result in a NP-exception.

Maybe cache.ccf is at wrong place. I have put it together with *hbm.xml file.

i will try your suggestion later !



regards!

I have tried many ways but same error still occurs :(

$ jar -tvf ../build/omnet-hibernate.sar
1639 Mon Sep 29 11:36:06 2003 META-INF/jboss-service.xml
3146 Tue Sep 16 08:53:14 2003 META-INF/User.hbm.xml
4274 Tue Sep 30 10:08:34 2003 META-INF/Device.hbm.xml
1025 Tue Sep 30 10:08:52 2003 com/omnet/bean/Icon.class
1791 Tue Sep 30 10:08:52 2003 com/omnet/bean/Location.class
466 Tue Sep 30 10:08:52 2003 com/omnet/bean/DevParam.class
....
1179 Wed Sep 17 11:33:38 2003 cache.ccf

<class name="com.omnet.bean.Icon" table="icon">
<jcs-cache usage="read-only"/> <id name="iconId" type="integer">
<column name="icon_id" sql-type="int" not-null="true"/>
<generator class="native"/>
</id>
<property name="iconName" type="string">
<column name="icon_name" sql-type="varchar(30)" not-null="true"/>
</property>
<property name="image" type="blob">
<column name="image" sql-type="blob" not-null="false"/>
</property>
</class>


Does anyone use jcs in jboss successfully ?

After put cache.ccf into D:\jboss-3.2.1_tomcat-4.1.24\server\default\lib\ext, i can successfully deploy the omnet-hibernate.sar which will not contain cache.ccf.
...
<class name="com.omnet.bean.Icon" table="icon">
<jcs-cache usage="read-only"/> <id name="iconId" type="integer">
<column name="icon_id" sql-type="int" not-null="true"/
<generator class="native"/>
</id>
<property name="iconName" type="string">
<column name="icon_name" sql-type="varchar(30)" not-null="true"/>
</property>
<property name="image" type="blob">
<column name="image" sql-type="blob" not-null="false"/>
</property>
</class>
....

however when i can getIcon() method as below ,the exception is raised :

StringWriter result = new StringWriter();
Session sess = null;
try {
Marshaller marshaller = new Marshaller(result);

sess = sf.openSession();

com.omnet.bean.Icon icon = null;

Iterator iter = sess.find("from dc in class com.omnet.bean.Icon").iterator(); // error here

while ( iter.hasNext() ) {
icon = (com.omnet.bean.Icon)iter.next();
marshaller.marshal( icon );
}
}
catch(Exception e) {
throw new OMException(e);
}


exception

com.omnet.util.OMException: java.lang.ClassCastException
at com.omnet.ejb.IconBean.getIcon(IconBean.java:65)
.....
at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:85)
at $Proxy68.getIcon(Unknown Source)
at com.omnet.web.IconServlet.doGet(IconServlet.java:101)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
.....
Caused by: java.lang.ClassCastException
at net.sf.hibernate.type.AbstractType.disassemble(AbstractType.java:41)
at net.sf.hibernate.impl.CacheEntry.disassemble(CacheEntry.java:35)
at net.sf.hibernate.impl.CacheEntry.(CacheEntry.java:26)
at net.sf.hibernate.impl.SessionImpl.initializeEntity(SessionImpl.java:1966)
at net.sf.hibernate.loader.Loader.doFind(Loader.java:196)
at net.sf.hibernate.loader.Loader.find(Loader.java:620)
at net.sf.hibernate.hql.QueryTranslator.find(QueryTranslator.java:928)
at net.sf.hibernate.impl.SessionImpl.find(SessionImpl.java:1343)
at net.sf.hibernate.impl.SessionImpl.find(SessionImpl.java:1322)
at net.sf.hibernate.impl.SessionImpl.find(SessionImpl.java:1314)
at com.omnet.ejb.IconBean.getIcon(IconBean.java:58)
... 66 more

why isnot it happy to run jcs in jboss ?!

I am not sure if this will help you out.

Try to use nonstrict-read-write other than read-write, also check to see if cache.ccf is in the same directory as your hibernate.properties or hibernate.cfg.xml file.

Okay, I did not see you are using read-only, that shouldn't have any problem. I did not try JCS on JBOSS, but it worked ok on Websphere.

Okay, I did not see you are using read-only, that shouldn't have any problem. I did not try JCS on JBOSS, but it worked ok on Websphere.

try this:
Query q = session.createQuery("from dc in class com.omnet.bean.Icon");

Iterator iter = q.iterate();
while ( iter.hasNext() ) {
icon = (com.omnet.bean.Icon)iter.next();
marshaller.marshal( icon );
}

sorry,i have taken holiday !
After do as you said,it still has error ! can you tell me where you put cache.ccf in your jboss environment ?

BTW,
i use jmx to config hibernate .

thanks again !