How to Build a Business Rules Engine

Implementing Logging

The way that logging is implemented in the sample application is by having a single

routine that records logging events. This routine is called at various points in the exe-

cution of business process steps and the rules that are contained within them. The

function, LogExecution(), is shown in Listing 21.1.

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CHAPTER TWENTY-ONE Debugging in Business Rules Engines

LISTING 21.1

Function to Update Business Rule Execution Log

Public Function LogExecution(strStep As String, strRule As String,

_

lngRecord As Long, strTab As String, strStatus As String)

As String

'*******************************************************************

' Records a log event. Called by the generated code. It updates

' the Business Rule Execution Log.

'

' Parameters: ...