Object and query caching place an in-memory cache and a cache manager component in between component instances and the associated database. You can configure the object cache and cache manager used by each entity component. You can configure the query cache used by each finder and ejbSelect method. You can configure caches that are dedicated to a single component or query method or shared by multiple components and query methods.
For components, object caching is enabled if you have configured an isolation level that requires caching. You can further customize the caching parameters as described in “Configuring object caching”. Query caching must be configured for each finder and ejbSelect method, on the Persistence/Query Mapping subtab in the Component Properties dialog box. See “Enabling query caching”. Query caching is disabled by default.
