Mule Cache - Expiry

Question

How do i setup an expiry time for the cache entries in mule ? I am setting up a keyExpression based cache on the incoming requests, like this:

   <ee:object-store-caching-strategy name="UserAuth-CachingStrategy" keyGenerationExpression="#[message.inboundProperties.'authorization']" doc:name="Caching Strategy">

The cache is supposed to hit an external WS and the results are supposed to be cached for 5 minutes. If i set an 'in-memory' store with a TTL for let's say 5 minutes, mule isn't honoring this request. Irrespective of the value in TTL, mule always hits the actual external ws once every 3-4 requests. If i don't set any value for TTL, then the cache never expires. how do i properly set a cache for an 'in-memory' cache in mule ?

Thanks

Answer 1

If you are using ObjectStore , you can easily set as given in the following using spring properties and referring your caching strategy to it :- http://ricston.com/blog/cache-scope-ehcache/

You can also use managed-store as following :-

<ee:object-store-caching-strategy nname="UserAuth-CachingStrategy" keyGenerationExpression="#[message.inboundProperties.'authorization']" doc:name="Caching Strategy">
<managed-store storeName="myNonPersistentManagedObjectStore" maxEntries="-1" entryTTL="20000" expirationInterval="5000"/>
</ee:object-store-caching-strategy>