Release 10.1A: OpenEdge Development:
Progress Dynamics Administration

Benefits and constraints on the class and entity cache

Note that even without this cache, the construction and retrieval of entity and class data only happens once—the first time a new entity or class is referenced in a session. So, once all entities and classes have been used, the performance with or without the cache is the same. Therefore, the class and entity cache provides a performance gain for cached entities and classes during the session startup and first-use of session objects.

These performance gains and network data reductions come at the cost of some deployment overhead; so, the use of this cache is optional. If you change class attribute defaults, extend the class hierarchy, add new attributes, or change the application database schema, you must regenerate and redeploy the class and entity cache to each client.