Timeout on node -- possible??

[krishnan366]

I am using jboss cache 3.0.2 for one of my projects and using the JDBCCacheLoader for eviction.

I would like to know if there is an option to set a timeout on each node. The requirement is that when this timeout is reached the node must be removed from both memory and database and should not be accessible.. How do I achieve this?

[manik]

Configure an expiration policy. This way you can specify when objects expire. In addition, you should change the EvictionActionPolicy from the default (only evict from memory) to the RemoveOnEvictActionPolicy.

[krishnan366]

Hi Manik,
Thanks for the response. I am using cache-config.xml to set the cache configuration options. How do I change to RemoveOnEvictActionPolicy in the config file .

Also the node should also be saved to database if the cache memory exceeds or may be when the number of nodes exceed a certain limit. This is right now configured and is working fine.

Can this be coupled with the RemoveOnEvictActionPolicy to achieve both ?

[krishnan366]

Thanks Manik, I was able to find out on configuring RemoveOnEvictActionPolicy. it is as follows

<region name="/org/jboss/data2" actionPolicyClass="org.jboss.cache.eviction.RemoveOnEvictActionPolicy">
27 <attribute name="maxNodes">5</attribute> <property name="maxNodes" value="5"/>
28 <attribute name="timeToLive">4000</attribute> <property name="timeToLive" value="4000"/>
29 </region> </region>

[krishnan366]

<region name="/org/jboss/data2" actionPolicyClass="org.jboss.cache.eviction.RemoveOnEvictActionPolicy">
<property name="maxNodes" value="5"/>
<property name="timeToLive" value="4000"/>
</region>