ATG Repository Caching Dont's

Don’t enable query caching it is turned off by default. If items in your repository are updated frequently, or if repeated queries are not common, you may not receive enough benefit from a query cache to justify the minor amount of overhead in maintaining the cache.

Disable caching when there is a possibility that the underlying data will be changed by a non-Dynamo repository application. You can also disable caching for an individual property within an item-descriptor by setting the cache-mode="disabled" attribute on the property itself. All other cache modes must be set at the item descriptor level, however, and cannot be set on a per-property basis.

If you use locked cache mode, you should disable the query cache, since query cache invalidation messages are not distributed between server instances. If query caching is important for the performance of your application, use distributed cache mode.


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