Demo on Workflow using Classes.docx

Demo on Workflow using Classes.docx

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DemoonWorkflowusingClasses

DemoonWorkflowusingClasses

ByRichaGupta,SpartaConsultingfrom Link

Purpose

TodevelopworkflowusingOOPSconceptinsteadofusingstandardBusinessObject. 

NOTE:

Beforefollowingthisdocument,onemusthaveabasicknowledgeofOOPSConcepts.

StepstofollowtouseClassesinWorkflow  

 HowtoCreateCustomClass  

HerewewillbecreatingacustomclassforMATERIAL.

Gototransaction SE24 andcreateacustomizedclass.

Nextthepopupappearswhereweneedtomentionthedetailasfollows:

Saveitandtheclassiscreated.

NowtheclassistoimplementIF_WORKFLOWinterface.Forthisgotothe  

  tabanddeclaretheIF_WORKFLOWastheinterfacethereandpressEnter;twosub-interfacesappear:

 BI_OBJECT and BI_PERSISTENT.SavetheClass.

TheZCL_TESTclassnowcontainstheexistingmethodsofIF_WORKFLOWinterface. 

Also,2newinterfaceswillbeautomaticallyaddedonceyouaddIF_WORKFLOWinterfaceintheclassasshownbelow:

EachmethodoftheIF_WORKFLOWInterfacehasitsdistinctfunctionality,whichisdiscussedbelow.  

 BI_PERSISTENT~FIND_BY_LPORMethod:

 Here,tocreateobject,constructorofclassneedstobeimplementedasfollows:

Here,SET_ATTRIBUTESmethodiscalledwhichwillbeimplementedasfollows:

BI_PERSISTENT~LPORMethod:

BI_PERSISTENT~REFRESHMethod:

Ifwedonotneedthemethodinourclass,thenweneedonlytocarryouta“dummy”implementation（withoutfurthercoding）toavoidprogramerrorswhenthesystemcallsthemethod. 

 BI_OBJECT~DEFAULT_ATTRIBUTE_VALUEMethod:

 BI_OBJECT~EXECUTE_DEFAULT_METHODMethod:

 BI_OBJECT~RELEASEMethod:

Now,theattributesneedtobedevelopedtoimplementabovemethodsareasfollows:

Totriggertheworkflowusingeventofclass,wemustalsocreateaneventoftheclass.Todothis,gotoEVENTStab,andtherecreateaneweventCREATEDasshownbelow:

Beforeimplementingabovemethods,alocaltypeneedstobecreated.Todothis,clickonLOCALTYPESasshownbelow:

Nowwritethebelowcode:

HowtouseClassinaWorkflow  

Here,theworkflowneedstobetriggeredassoonasamaterialiscreated.Andthenaworkitemshouldgotoinitiatortoeditthesamematerial. 

GotoSWDDtocreateanewworkflow.

ClickonBasicDataTab:

GiveanabbreviationandShortDescriptiontoworkflowasfollows:

NowclickonSTARTEVENTStabandspecifythefollowingstandardeventofthestandardclass:

NowgobackandrightclickinbetweentheWORKFLOWSTARTEDandWORKFLOWCOMPLETED.

SelectCREATE.Alistofavailablesteptypeswillbedisplayedasfollows:

SelectACTIVITYfromthislist.Thefollowingscreenwillappear:

Specifythefollowingdetailshere:

ClickonBindingtab.Bindingwillbeasfollows:

Clickontaskdescription.Automaticallyfollowingdetailswillshow:

Clickonthegreenbuttonforbindingaboveandconfirmthebindingsmustbeasfollows:

SETAGENTASSIGNMENT:

ClickonyellowbuttoncomingbesidesAgentAssignment:

ClickonATTRIBUTES:

SelectGeneralTaskandclickonTRANSFER 

HowtotriggereventofClass  

Totriggereventofaclass,weneedtocallmethodRAISEofstandardclassCL_SWF_EVT_EVENT.Thismethodcanbecalledinauserexit,BAdi,oracustomreportdependingontherequirement. 

Inourcase,wearecallingthemethodinaBAdi‘BADI_MATERIAL_CHECK’. 

ThemethodinwhicheventwillberaisedisCHECK_DATA. 

CreateanewcustommethodRAISE_EVENTintheclassimplementedforBAdi.

Followingmethodwillbecalledtoraiseevent:

Activateclassandgoback.

NowgoinCHECK_DATEmethodandwritethebelowcode:

Output 

Createanewmaterial.Todothis,gotoMM01. 

PressEnterandthefollowingscreenwillappear:

SpecifytheabovedetailsandpressEnter.Onthenextscreen,enterthefollowingdetails:

ClickonSAVE 

button. 

Assoonasthematerialgetscreated,theworkflowwilltriggerasshownbelowintheworkflowlog: