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rulesmanager_overview.htm
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The Rule Manager classes work together to provide a central repository for business rules logic and a methodology for checking and responding to business rules in Clarion procedures. The Rule Manager classes also provide the option of visual indicators when a rule has been broken and conditional hiding or disabling of controls in the presence of broken rules.

Why Use RuleManager?

A primary requirement of a database system is the validation of data, or, more generally, enforcement of business rules. A common methodology is to put all validation code in the update procedure. However, the same tables may be handled by multiple procedures, e.g., manual input and batch processes, and individual columns may also be updated by procedures primarily concerned with other tables.

The result is that code for validating a particular column is repeated in multiple places throughout the application, providing opportunities for inconsistency and, as the system grows, creating a maintenance nightmare.

The Rule Manager Classes and associated templates provide a mechanism for centralizing validation code so that validation, wherever it is needed, is always provided in exactly the same way by code which can be maintained in a single, central location.

In addition, the Rule Manager Classes provide facilities for identifying broken rules in a convenient manner and enforcing rules through selective disabling or hiding of controls.

rulesmanager_overview.htm.txt · Last modified: 2021/04/15 15:57 by 127.0.0.1