Enabling caching of objects should not enable it for all entities
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Key: HIB-199
URL: http://jira.andromda.org/browse/HIB-199
Project: Hibernate Cartridge
Type: New Feature
Versions: 3.2-RC1
Reporter: Manish Baxi
Assigned to: Carlos Cuenca
Priority: Critical
We have an application with thousands of entities, out of which about 100 are
meant to store static or reference data while the others are purely
transactional in nature and change too frequently. There is a strong business
case to cache objects of static or reference types but not of the transactional
type.
Before we started using AndroMDA, we were already using HIBERNATE and EHCACHE
and had caching enabled for individual classes where caching was required.
After moving to AndroMDA we have discovered that it isn't possible to turn
caching on for individual objects. This is quite painful for us as right now
we desperately need caching but turning it on forces entries for all entities
into the ehcache.xml file although we do not want that behaviour.
My suggestion is that besides the property that controls caching in the
Namespace, another property be added to the Profile that will allow us to
control caching of individual entities through the tagged values. An entry
should be made to ehcache.xml only if the property is set both in the namespace
and the profile for an entity.
Right now I have specified cache-type=none in andromda.xml and then overridden
it in tagged values for the entities where I need caching. I have also
modified the cartridge locally to check whether cache-type is set to something
other than none and only then generate a cache entry for that entity.
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