project QadFinancials > class BBLWICountry > method ApiStdMaintainTT

Description

This method can create new instances or update existing instances based on the content of the input temp-table.
The action that is passed as a parameter will define if the records are saved, saved as draft or just validated.

If the BLWI Country can be found (based on its code), the existing BLWI Country is updated.
If not, a new BLWI Country is created.


Parameters


tApiBLWICountryinputtemp-tableTemp-table like BLWICountry with the records that need to be created or modified.
icActioninputcharacterThis input parameter defines what should happen with the input data:
- SAVE: Save the data if there were no errors.
- SAVESTORE: Save the data if there were no errors. If there were, save as draft.
- STORE: Save the data as draft.
- VALIDATE: Validate the input data, but do not save the data.
ocLstPrimKeyoutputcharacterReturns the list of IDs for all records that were processed.
ocLstReturnoutputcharacterReturns the list of return values for all records that were processed.
ocLstRowidoutputcharacterReturns the list of Rowids for each records that was processed.
oiReturnStatusoutputintegerReturn status of the method.


Internal usage


QadFinancials
method BBLWICountry.MaintainByDataset
method BBLWICountry.MaintainByDatasetWithOutput


program code (program3/bblwicountry.p)

/* =================================================== */
/* Method Info:                                        */
/* BLWICountry will be loaded based on the Logical Key     */
/* =================================================== */

/* ============================================================================ */
/* Clear the instance:                                                          */
/* this will also clear the t_s tables that were filled in ApiMaintainByDataSet */
/* ============================================================================ */
<M-19 run ClearData (output viFcReturnSuper (oiReturnStatus)) in BBLWICountry>
if viFcReturnSuper <> 0
then assign oiReturnStatus = viFcReturnSuper.
if oiReturnStatus < 0
then return.

/* ==================== */
/* Set Default Return   */
/* Parameter Validation */
/* ==================== */
assign oiReturnStatus         = -98
       vlDraftInstanceCreated = false.
if icAction = ? then assign icAction = "":U.
if icAction <> {&DAEMONACTION-SAVESTORE} and
   icAction <> {&DAEMONACTION-SAVE}      and
   icAction <> {&DAEMONACTION-STORE}     and
   icAction <> {&DAEMONACTION-VALIDATE}
then do:
    assign vcBLWICountryMsg   = trim(subst(#T-4'A BLWI country integration error occurred. The specified action (&1) must be in the list '&2'.':255(17425)t-4#,trim(icAction),"{&DAEMONACTION-SAVESTORE},{&DAEMONACTION-SAVE},{&DAEMONACTION-STORE},{&DAEMONACTION-VALIDATE}":U))
           oiReturnStatus = -1.
    <M-20 run SetMessage (input  vcBLWICountryMsg (icMessage), 
                      input  '':U (icArguments), 
                      input  '':U (icFieldName), 
                      input  '':U (icFieldValue), 
                      input  'E':U (icType), 
                      input  3 (iiSeverity), 
                      input  '':U (icRowid), 
                      input  'QADFIN-4339':U (icFcMsgNumber), 
                      input  '':U (icFcExplanation), 
                      input  '':U (icFcIdentification), 
                      input  '':U (icFcContext), 
                      output viFcReturnSuper (oiReturnStatus)) in BBLWICountry>
    return.
end. /* if icAction */

/* ======================== */
/* Count main-table records */
/* ======================== */
for each tApiBLWICountry no-lock :
    assign viMainTableRecordCount = viMainTableRecordCount + 1.
end. /* for each */
if viMainTableRecordCount = 0
then do:
    assign vcBLWICountryMsg       = trim(#T-5'A BLWI country integration error occurred. The system could not find main table records (BLWI Country).':255(17426)t-5#)
           oiReturnStatus = -1.
    <M-21 run SetMessage (input  vcBLWICountryMsg (icMessage), 
                      input  '':U (icArguments), 
                      input  '':U (icFieldName), 
                      input  '':U (icFieldValue), 
                      input  'E':U (icType), 
                      input  3 (iiSeverity), 
                      input  '':U (icRowid), 
                      input  'QADFIN-4340':U (icFcMsgNumber), 
                      input  '':U (icFcExplanation), 
                      input  '':U (icFcIdentification), 
                      input  '':U (icFcContext), 
                      output viFcReturnSuper (oiReturnStatus)) in BBLWICountry>
    return.
end. /* if viMainTableRecordCount */

/* ========================= */
/* Start Queries             */
/* ========================= */
<Q-27 run BLWICountryPrim  (Start) in BBLWICountry >

/* ================================ */
/* Start loop on main-table records */
/* ================================ */
for each tApiBLWICountry by tApiBLWICountry.tc_Rowid : 

    MAIN-BLOCK: DO:

    /* ========== */
    /* Initialize */
    /* ========== */
    assign vcBLWICountryMsg    = "":U
           vcRowID             = "":U
           vlWarningsFound     = false
           vlSaveAsDraft       = icAction = {&DAEMONACTION-STORE}.
        
    /* =========================================== */
    /* Get the BLWICountry_ID based on the logical key */
    /* =========================================== */
    if (tApiBLWICountry.BLWICountry_ID = ? or
        tApiBLWICountry.BLWICountry_ID = 0) and
        tApiBLWICountry.BLWICountryCode <> "" and
        tApiBLWICountry.BLWICountryCode <> ?
    then do:
        <Q-28 run BLWICountryPrim (all) (Read) (NoCache)
          (input ?, (BLWICountryId)
           input tApiBLWICountry.BLWICountryCode, (BLWICountryCode)
           output dataset tqBLWICountryPrim) in BBLWICountry >
        find tqBLWICountryPrim where 
             tqBLWICountryPrim.tcBLWICountryCode = tApiBLWICountry.BLWICountryCode             
             no-lock no-error.
        if available tqBLWICountryPrim
        then assign tApiBLWICountry.BLWICountry_ID = tqBLWICountryPrim.tiBLWICountry_ID.
    end.

    /* ==================== */
    /* Load/Create BLWICountry  */
    /* ==================== */
    if tApiBLWICountry.BLWICountry_ID = ? or
       tApiBLWICountry.BLWICountry_ID = 0
    then assign viFcReturnSuper = -4.
    else do:
        <M-30 run DataLoad (input  ? (icRowids), 
                    input  string(tApiBLWICountry.BLWICountry_ID) (icPkeys), 
                    input  ? (icObjectIds), 
                    input  ? (icFreeform), 
                    input  false (ilKeepPrevious), 
                    output viFcReturnSuper (oiReturnStatus)) in BBLWICountry>      
    end. /* Not if tApiBLWICountry.BLWICountry_ID = ? or */
    if viFcReturnSuper = -4
    then do:
        assign viFcReturnSuper = 0.
        <M-31 run DataNew (output viFcReturnSuper (oiReturnStatus)) in BBLWICountry>
        if viFcReturnSuper < 0
        then assign vcBLWICountryMsg = trim(subst(#T-6'Cannot create a new instance. Error number: &1.':255(308)t-6#, string(viFcReturnSuper))).
        find first tBLWICountry no-error.
    end. /* if viFcReturnSuper = -4 */
    else do:
        if viFcReturnSuper < 0
        then assign vcBLWICountryMsg = trim(subst(#T-7'Cannot load the instance (error number: &1, instance ID: &2).':255(289)t-7#, string(viFcReturnSuper), string(tApiBLWICountry.BLWICountry_ID))).
        else do:
            find tBLWICountry where
                 tBLWICountry.BLWICountry_ID = tApiBLWICountry.BLWICountry_ID
                 no-error.
            if not available tBLWICountry
            then assign vcBLWICountryMsg = trim(subst(#T-8'Cannot find the instance after it has been loaded (instance ID: &1).':255(290)t-8#,string(tApiBLWICountry.BLWICountry_ID))).
            else assign tBLWICountry.tc_Status = "C":U.
        end. /* Not if viFcReturnSuper <> 0 */
    end. /* Not if viFcReturnSuper = -4 */

    /* ====================================== */
    /* Check for errors in the previous block */
    /* ====================================== */
    if vcBLWICountryMsg <> "":U
    then do:
        assign ocLstReturn   = ocLstReturn  + chr(4) + (if viFcReturnSuper = 0 then "-3":U else string(viFcReturnSuper))
               ocLstPrimKey  = ocLstPrimKey + chr(4) + "*":U
               ocLstRowid    = ocLstRowid   + chr(4) + "*":U 
               vlSaveAsDraft = false.
        <M-22 run SetMessage (input  vcBLWICountryMsg (icMessage), 
                      input  '':U (icArguments), 
                      input  '':U (icFieldName), 
                      input  '':U (icFieldValue), 
                      input  'E':U (icType), 
                      input  3 (iiSeverity), 
                      input  '':U (icRowid), 
                      input  'QADFIN-4341':U (icFcMsgNumber), 
                      input  '':U (icFcExplanation), 
                      input  '':U (icFcIdentification), 
                      input  '':U (icFcContext), 
                      output viFcReturnSuper (oiReturnStatus)) in BBLWICountry>
        leave MAIN-BLOCK.
    end. /* if vcMessage <> "":U */

    /* ====================== */
    /* Copy data for BLWICountry  */
    /* ====================== */          
    buffer-copy tApiBLWICountry
         except tApiBLWICountry.BLWICountry_ID
                tApiBLWICountry.tc_ParentRowid
                tApiBLWICountry.tc_Rowid
                tApiBLWICountry.tc_Status  
                tApiBLWICountry.BLWICountryCode
             to tBLWICountry.
    if tBLWICountry.tc_Status = "N":U
    then assign tBLWICountry.BLWICountryCode = tApiBLWICountry.BLWICountryCode.
    assign vcRowID                        = tBLWICountry.tc_Rowid
           tApiBLWICountry.BLWICountry_ID = tBLWICountry.BLWICountry_ID /* Needed to set the prim-key after the Save */.        

    /* =================================================== */
    /* This is where it ends if only SaveAsDraft is needed */
    /* =================================================== */
    if vlSaveAsDraft
    then do:
        assign ocLstReturn  = ocLstReturn  + chr(4) + "-1":U
               ocLstPrimKey = ocLstPrimKey + chr(4) + "*":U
               ocLstRowid   = ocLstRowid   + chr(4) + "*":U.
        leave MAIN-BLOCK.
    end. /* if vlSaveAsDraft */
    
    /* =============================== */
    /* Set Actvity & Validate the data */
    /* =============================== */
    if can-find (first tBLWICountry where 
                       tBLWICountry.tc_Status = "N":U) 
    then assign vcActivityCode = "Create":U.
    else if can-find (first tBLWICountry where 
                            tBLWICountry.tc_Status = "C":U) 
         then assign vcActivityCode = "Modify":U.
    <M-32 run ValidateBC (output viFcReturnSuper (oiReturnStatus)) in BBLWICountry>
    if viFcReturnSuper < 0
    then do:
        assign ocLstReturn   = ocLstReturn  + chr(4) + string(viFcReturnSuper)
               ocLstPrimKey  = ocLstPrimKey + chr(4) + "*":U
               ocLstRowid    = ocLstRowid   + chr(4) + "*":U
               vlSaveAsDraft = (icAction <> {&DAEMONACTION-SAVE} and icAction <> {&DAEMONACTION-VALIDATE}).
        leave MAIN-BLOCK.
    end. /* if viFcReturnSuper <> 0 */
    else if viFcReturnSuper > 0
         then assign vlWarningsFound = true.
    
    /* ================ */
    /* External updates */
    /* ================ */
    <M-33 run AdditionalUpdates (output viFcReturnSuper (oiReturnStatus)) in BBLWICountry>   
    if viFcReturnSuper < 0
    then do:
        assign ocLstReturn   = ocLstReturn  + chr(4) + string(viFcReturnSuper)
               ocLstPrimKey  = ocLstPrimKey + chr(4) + "*":U
               ocLstRowid    = ocLstRowid   + chr(4) + "*":U
               vlSaveAsDraft = (icAction <> {&DAEMONACTION-SAVE} and icAction <> {&DAEMONACTION-VALIDATE}).
        leave MAIN-BLOCK.
    end. /* if viFcReturnSuper <> 0 */
    else if viFcReturnSuper > 0
         then assign vlWarningsFound = true.
                
    /* ============= */
    /* Save the data */
    /* ============= */
    if icAction <> {&DAEMONACTION-VALIDATE}
    then do :
        if vlReturnDatasetBLWI
        then do:
            <M-36 run GetXmlRepresentationDataset
               (input  '' (icObjectRowId), 
                input  false (ilHeaderOnly), 
                input  0 (iiPriority), 
                output vhDatasetToReturnBLWI by-reference (ozXMLDataset), 
                output viFcReturnSuper (oiReturnStatus)) in BBLWICountry>

            if viFcReturnSuper < 0
            then do:
                assign ocLstReturn   = ocLstReturn  + chr(4) + string(viFcReturnSuper)
                       ocLstPrimKey  = ocLstPrimKey + chr(4) + "*":U
                       ocLstRowid    = ocLstRowid   + chr(4) + "*":U
                       vlSaveAsDraft = (icAction <> {&DAEMONACTION-SAVE} and icAction <> {&DAEMONACTION-VALIDATE}).

                leave MAIN-BLOCK.
            end.
            else
            if viFcReturnSuper > 0
            then assign vlWarningsFound = true.

            assign vcTableName = "".

            <M-37 run GetKeyFields
               (input-output vcTableName (bcTableName), 
                output vcPrimKeyBLWI (ocPrimaryKey), 
                output vcDummy (ocAlternateKey), 
                output vcDummy (ocObjectID), 
                output vcDummy (ocObjectStatus), 
                output viFcReturnSuper (oiReturnStatus)) in BBLWICountry>

            if viFcReturnSuper < 0
            then do:
                assign ocLstReturn   = ocLstReturn  + chr(4) + string(viFcReturnSuper)
                       ocLstPrimKey  = ocLstPrimKey + chr(4) + "*":U
                       ocLstRowid    = ocLstRowid   + chr(4) + "*":U
                       vlSaveAsDraft = (icAction <> {&DAEMONACTION-SAVE} and icAction <> {&DAEMONACTION-VALIDATE}).

                leave MAIN-BLOCK.
            end.
            else
            if viFcReturnSuper > 0
            then assign vlWarningsFound = true.
        end.

        <M-34 run DataSave (output viFcReturnSuper (oiReturnStatus)) in BBLWICountry>
        if viFcReturnSuper < 0
        then do:
            assign ocLstReturn   = ocLstReturn  + chr(4) + string(viFcReturnSuper)
                   ocLstPrimKey  = ocLstPrimKey + chr(4) + "*":U
                   ocLstRowid    = ocLstRowid   + chr(4) + "*":U
                   vlSaveAsDraft = (icAction <> {&DAEMONACTION-SAVE} and icAction <> {&DAEMONACTION-VALIDATE}).
            leave MAIN-BLOCK.
        end. /* if viFcReturnSuper <> 0 */
        else if viFcReturnSuper > 0
             then assign vlWarningsFound = true.
    end. /* if icAction = {&DAEMONACTION-VALIDATE} */
    
    /* ============================================ */
    /* Indicate that everything was saved correctly */
    /* ============================================ */
    assign ocLstReturn   = ocLstReturn  + chr(4) + (if vlWarningsFound = true then "1":U else "0":U)
           ocLstPrimKey  = ocLstPrimKey + chr(4) + string(tApiBLWICountry.BLWICountry_ID)
           ocLstRowid    = ocLstRowid   + chr(4) + vcRowID.

    END. /* MAIN-BLOCK */

    /* ================================================================== */        
    /* Handle errors: Store if SaveAsDraft is needed                      */
    /* Check: only 1 draft is allowed for a single bus-component instance */
    /* ================================================================== */
    if vlSaveAsDraft and 
       index(substr(ocLstReturn, r-index(ocLstReturn, chr(4)) + 1,-1,"CHARACTER":U),"-":U) <> 0 /* Negative return-status for this entry */
    then do:
        if vlDraftInstanceCreated = true
        then do :
            assign vcBLWICountryMsg  = trim(#T-9'Only one draft instance can be created per method call.':255(858)T-9#) + chr(10) + trim(#T-10'This second object will not be stored as a draft instance and so is an error.':255(859)t-10#).
            <M-23 run SetMessage (input  vcBLWICountryMsg (icMessage), 
                      input  '':U (icArguments), 
                      input  '':U (icFieldName), 
                      input  '':U (icFieldValue), 
                      input  'E':U (icType), 
                      input  3 (iiSeverity), 
                      input  '':U (icRowid), 
                      input  'QADFIN-4342':U (icFcMsgNumber), 
                      input  '':U (icFcExplanation), 
                      input  '':U (icFcIdentification), 
                      input  '':U (icFcContext), 
                      output viFcReturnSuper (oiReturnStatus)) in BBLWICountry>
            next.
        end. /* if vlDraftInstanceCreated = true */
        <M-35 run StoreState (input  '(':U + string(tBLWICountry.BLWICountryCode) + ') ':U + trim(#T-19'The BLWI country was created using an API method.':255(17427)t-19#) (icDescription), 
                      input  ? (icUIClass), 
                      output viFcReturnSuper (oiReturnStatus)) in BBLWICountry>
        assign vlDraftInstanceCreated                                         = true
               entry(num-entries(ocLstReturn , chr(4)), ocLstReturn , chr(4)) = string(viFcReturnSuper)
               entry(num-entries(ocLstPrimKey, chr(4)), ocLstPrimKey, chr(4)) = string(tApiBLWICountry.BLWICountry_ID)
               entry(num-entries(ocLstRowid  , chr(4)), ocLstRowid  , chr(4)) = vcRowID.
    end. /* if vlSaveAsDraft and substr */
    
end. /* for each tApiBLWICountry: */

/* ========================= */
/* Stop Queries              */
/* ========================= */
<Q-29 run BLWICountryPrim  (Stop) in BBLWICountry >

/* ============================================================ */
/* Trim the first character of ocLstReturn and primkey          */
/* Check for correct number and format of the return-parameters */
/* ============================================================ */
if length(ocLstReturn,"CHARACTER":U)  > 1 then assign ocLstReturn  = substring(ocLstReturn,2,-1,"CHARACTER":U).
if length(ocLstPrimKey,"CHARACTER":U) > 1 then assign ocLstPrimKey = substring(ocLstPrimKey,2,-1,"CHARACTER":U).
if length(ocLstRowid,"CHARACTER":U)   > 1 then assign ocLstRowid   = substring(ocLstRowid,2,-1,"CHARACTER":U).
if num-entries(ocLstReturn,chr(4))  <> viMainTableRecordCount or
   num-entries(ocLstPrimKey,chr(4)) <> viMainTableRecordCount or
   num-entries(ocLstRowid,chr(4))   <> viMainTableRecordCount
then do :
    assign vcBLWICountryMsg   = trim(#T-12'A BLWI country integration error occurred. An API method returned incomplete information. See other messages for further details.':200(17428)t-12#) + chr(10) + 
                            trim(substitute(#T-13'Main table records: &1.':255(310)T-13#,string(viMainTableRecordCount))) + chr(10) + 
                            trim(substitute(#T-14'Return Statuses: &1.':255(311)T-14#,ocLstReturn))  + chr(10) +
                            trim(substitute(#T-15'Primary keys: &1.':255(312)T-15#,ocLstPrimKey)) + chr(10) +
                            trim(substitute(#T-16'Row IDs: &1.':255(313)T-16#,ocLstRowid)).
           oiReturnStatus = -3.
    <M-24 run SetMessage (input  vcBLWICountryMsg (icMessage), 
                      input  '':U (icArguments), 
                      input  '':U (icFieldName), 
                      input  '':U (icFieldValue), 
                      input  'E':U (icType), 
                      input  3 (iiSeverity), 
                      input  '':U (icRowid), 
                      input  'QADFIN-4343':U (icFcMsgNumber), 
                      input  '':U (icFcExplanation), 
                      input  '':U (icFcIdentification), 
                      input  '':U (icFcContext), 
                      output viFcReturnSuper (oiReturnStatus)) in BBLWICountry>
    return.
end. /* if num-entries */

/* ===================================================== */
/* Set global return status based on the individual ones */
/* ===================================================== */
if ocLstReturn = substring(fill("0":U + CHR(4),viMainTableRecordCount),1,length(ocLstReturn,"CHARACTER":U),"CHARACTER":U)
then assign oiReturnStatus = 0.
else do : 
    if index(ocLstReturn,"-":U) <> 0        
    then do :
        assign vcBLWICountryMsg      = trim(#T-17'An error has occurred while running this API method. See other error messages for more details.':255(301)T-17#)
               oiReturnStatus    = -1.
        <M-25 run SetMessage (input  vcBLWICountryMsg (icMessage), 
                      input  '':U (icArguments), 
                      input  '':U (icFieldName), 
                      input  '':U (icFieldValue), 
                      input  'E':U (icType), 
                      input  1 (iiSeverity), 
                      input  '':U (icRowid), 
                      input  'QADFIN-4344':U (icFcMsgNumber), 
                      input  '':U (icFcExplanation), 
                      input  '':U (icFcIdentification), 
                      input  '':U (icFcContext), 
                      output viFcReturnSuper (oiReturnStatus)) in BBLWICountry>
    end. /* index(ocLstReturn,"-":U) <> 0 */
    else do : 
        assign vcBLWICountryMsg     = trim(#T-18'A warning has occurred while running this API method. See other error messages for more details.':255(302)T-18#)
               oiReturnStatus   = +1.
        <M-26 run SetMessage (input  vcBLWICountryMsg (icMessage), 
                      input  '':U (icArguments), 
                      input  '':U (icFieldName), 
                      input  '':U (icFieldValue), 
                      input  'W':U (icType), 
                      input  3 (iiSeverity), 
                      input  '':U (icRowid), 
                      input  'QADFIN-4345':U (icFcMsgNumber), 
                      input  '':U (icFcExplanation), 
                      input  '':U (icFcIdentification), 
                      input  '':U (icFcContext), 
                      output viFcReturnSuper (oiReturnStatus)) in BBLWICountry>
    end. /* not if lookup */
end. /* not if ocLstReturn */


Sample code: how to call this method through RPCRequestService (QXtend Inbound)

define temp-table ttContext no-undo
    field propertyQualifier as character
    field propertyName as character
    field propertyValue as character
    index entityContext is primary unique
        propertyQualifier
        propertyName
    index propertyQualifier
        propertyQualifier.

define dataset dsContext for ttContext.

define variable vhContextDS as handle no-undo.
define variable vhExceptionDS as handle no-undo.
define variable vhServer as handle no-undo.
define variable vhInputDS as handle no-undo.
define variable vhInputOutputDS as handle no-undo.
define variable vhOutputDS as handle no-undo.
define variable vhParameter as handle no-undo.

/* Create context */
create ttContext.
assign ttContext.propertyName = "programName"
       ttContext.propertyValue = "BBLWICountry".
create ttContext.
assign ttContext.propertyName = "methodName"
       ttContext.propertyValue = "ApiStdMaintainTT".
create ttContext.
assign ttContext.propertyName = "applicationId"
       ttContext.propertyValue = "fin".
create ttContext.
assign ttContext.propertyName = "entity"
       ttContext.propertyValue = "1000".
create ttContext.
assign ttContext.propertyName = "userName"
       ttContext.propertyValue = "mfg".
create ttContext.
assign ttContext.propertyName = "password"
       ttContext.propertyValue = "".

/* Create input dataset */
create dataset vhInputDS.
vhInputDS:read-xmlschema("file", "xml/bblwicountry.apistdmaintaintt.i.xsd", ?).
vhParameter = vhInputDS:get-buffer-handle("tParameterI").
vhParameter:buffer-create().
assign vhParameter::icAction = <parameter value>.

vhParameter = vhInputDS:get-buffer-handle("tApiBLWICountry").
vhParameter:buffer-create().
assign vhParameter::<field-name-1> = <field-value-1>
       vhParameter::<field-name-2> = <field-value-2>
       ...

/* Connect the AppServer */
create server vhServer.
vhServer:connect("-URL <appserver-url>").

if not vhServer:connected()
then do:
    message "Could not connect AppServer" view-as alert-box error title "Error".
    return.
end.

/* Run */
assign vhContextDS = dataset dsContext:handle.

run program/rpcrequestservice.p on vhServer
    (input-output dataset-handle vhContextDS by-reference,
           output dataset-handle vhExceptionDS,
     input        dataset-handle vhInputDS by-reference,
     input-output dataset-handle vhInputOutputDS by-reference,
           output dataset-handle vhOutputDS).

/* Handle output however you want, in this example, we dump it to xml */
if valid-handle(vhExceptionDS)
then vhExceptionDS:write-xml("file", "Exceptions.xml", true).

if valid-handle(vhOutputDS)
then vhOutputDS:write-xml("file", "Output.xml", true).

/* Cleanup */
vhServer:disconnect().
assign vhServer = ?.

if valid-handle(vhInputDS)
then delete object vhInputDS.

if valid-handle(vhOutputDS)
then delete object vhOutputDS.

if valid-handle(vhExceptionDS)
then delete object vhExceptionDS.