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Sunday, April 5, 2009

Things good to know

Validation View Object - A view object created exclusively for the purpose of performing light-weight SQL validation on behalf of entity objects or their experts.

Validation Application Module - An application module created exclusively for the purpose of grouping and providing transaction context to related validation view objects. Typically, a standalone entity object or the top-level entity object in a composition would have an associated validation application module.

Root Application Module - Each pageLayout region in an OA Framework application is associated with a "root" application module which groups related services and establishes the transaction context.

This transaction context can be shared by multiple pages if they all reference the same root application module, and instruct the framework to retain this application module (not return it to the pool) when navigating from page to page within the transaction task.

View Link - Establishes a master/detail relationship between two view objects

Entity Expert - A special singleton class registered with an entity object (EO) that performs operations on behalf of the EO.

Association Object - BC4J association objects implement the relationships between entity objects. For example, a purchase order header can reference a supplier, or it can own its order lines.

Attribute Set - Bundles of region or item properties that can be reused either as is or with modifications. For example, all buttons sharing the same attribute set would have the same label and Alt text.

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