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3.2.1.3.4.2 Non-Persisted File Group Instance

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A Non-Persisted File Group Instance is a type of File Group (section 3.2.1.3.4), which has all the properties of a file group. A Non-Persisted File Group Instance is a copy, in memory, of an instance of a Persisted File Group (section 3.2.1.3.4.1), and it is used by a client to make changes to that Persisted File Group. Changes, including deletion, that are made to a Non-Persisted File Group Instance are either discarded after use or applied to the associated persisted file screen. There can be zero or more Non-Persisted File Group Instances for each Persisted File Group.

A protocol client can perform the following management operations involving Non-Persisted File Group Instances:

  • Create or change the configuration data for a Non-Persisted File Group Instance. See CreateFileGroup (Opnum 7) (section 3.2.4.2.25.1) and Commit (Opnum 11) (section 3.2.4.2.10.5) for details.

  • Commit changes, including deletion, from a Non-Persisted File Group Instance into the associated Persisted File Group. See Delete (Opnum 10) (section 3.2.4.2.10.4) and Commit (Opnum 11) (section 3.2.4.2.10.5) for details.