CSLA dot NET Version 2.1. Handbook C Sharp Edition by Lhotka

By Lhotka

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Changes to BusinessBase BusinessBase has been enhanced to not AddInstanceAuthorizationRules(): only implement AddAuthorizationRules(), but also protected virtual void AddInstanceAuthorizationRules() { } This method is invoked at appropriate points during the business object’s lifecycle, when the roles need to be associated with the object’s properties. This occurs when the object is created.

1, though there are exceptions. 1 are entirely new, and you’ll need to change your code to exploit them. 1, business rules may be associated with a business object at the type or instance level. Per-type rules are associated with all business objects of a given type, while per-instance rules are associated with one specific instance of a business object. Per-type rules are far more efficient in their use of memory, and offer performance benefits because the association of rules to properties only occurs once per AppDomain rather than as each object is created.

NET can be told to stop processing rules if any previous (higher priority) rule has already returned false . Page 29 This feature is useful, because it allows the business developer to check all the inexpensive, easily checked, rules first, and only invoke expensive rules (such as those that might hit the database) if all previous rules were satisfied (returned true ). The rule priority feature discussed earlier is a key part of this capability, because it allows the business developer to control the order in which rules are invoked.

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