2022.2

Note: SinceEntire datapropertiesareevaluatedbeforeanythingelse,suchasPre-
processors,DelimitersandBoundariesintheSettingspane(see"Datasourcesettings"
onpage223),thesepropertiescannotreadinformationfromthedatasampleorfromany
records.
Preprocessor
ThePreprocessorsubsectiondefineswhatpreprocessortasksareperformedonthedatafilebeforeit
ishandedovertothedatamappingworkflow.Preprocessortaskscanmodifythedatafileinmany
ways,andeachtaskrunsinturn,usingtheresultofthepreviousoneasaninput.
l
Name:ThenametoidentifythePreprocessortask.ClickthisfieldtorenamethePreprocessor
task.
l
Type:ThetypeofPreprocessortask.Currentlythereisonlyonetypeavailable:script.
Thebuttonstotherightcanbeusedtoadd,removeandreorderthetasksandtoapplythemtothecur-
rentdatafile.
Note: TheApplybuttonhasaneffectatdesigntimeonly.Itisignoredatruntime.Whenadata
mappingconfigurationisexecutedontheserver,allpreprocessorsareexecutedinoriginal
order.
TheExportbuttonexportsthecurrentdata fileinitscurrentstate.Preprocessingmaycostalotoftime
whenthedatafileisverylarge.Youcouldusetheexportedfileinsteadoftheoriginalfiletoavoidpre-
processingwhiledevelopingtheworkflowconfiguration.
Preprocessor definition
l
Expression:EntertheJavaScriptcodetobeperformedonthedatafile.See"DataMapper
ScriptsAPI"onpage360.
Extract step properties
TheExtractsteptakesinformationfromthedatasourceandplacesitintherecordsetthatistheresult
oftheextractionworkflow.Formoreinformationsee"Extractstep"onpage250and"Extractingdata"
onpage229.
Description
Thissubsectioniscollapsedbydefaultintheinterface,togivemorescreenspacetootherimportant
parts.
Name:Thenameofthestep.Thisnamewillbedisplayedontopofthestep'siconintheStepspane.
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