2022.2

ThePreprocessorandPostprocessorstepsarespecialinthattheformercanbeusedtomodifythe
incomingdatapriortoexecutingtherestoftheextractionworkflowwhilethelattercanbeusedtofur-
therprocesstheresultingrecordsetaftertheentireextractionworkflowhasbeenexecuted.
Steptypes
Thesearethetypesofstepsthatcanbeaddedtoadatamappingworkflow:
l
"Preprocessorstep"below
l
"Extractstep"onthefacingpage
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"Repeatstep"onpage251
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"Gotostep"onpage252
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"Conditionstep"onpage253
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"MultipleConditionsstep"onpage256
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"Actionstep"onpage257
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"Postprocessorstep"onpage258
Preprocessorstep
ThePreprocessorstepallowstomodifytheincomingdatathroughanumberofpreprocessorspriorto
executingtherestoftheextractionworkflow(see"Preprocessors"below).Italsoletsyoudefineprop-
ertiesandruntime parametersthatcanbeusedthroughoutthedatamappingworkflow.
ForacompleteoverviewofthesettingsforaPreprocessorstep,see:"Preprocessorstepproperties"on
page323.
Properties and runtime parameters
Adatamappingconfiguration'spropertiesholddatathatcanbeusedthroughoutthedatamapping
workflowtocompareagainstinconditionsortocomplementtheexistingdata.
Runtime parametersarepropertiesthatwillpassinformationfromOLConnectWorkflowtothedata
mappingconfiguration.
Formoreinformationsee"Propertiesandruntimeparameters"onpage227.
Preprocessors
ThePreprocessorstepcancontainanynumberofpreprocessors.Theywillberuninsequencebefore
thedataissenttothedatamappingworkflow.
Apreprocessorcouldremovecertainrecordsaltogether.
OneexampleofhowapreprocessorcouldbeusedisgiveninaHow-to:UsingPreprocessorsin
DataMapper.
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