Passing changing input to rfc method

I am trying to call a SAP RFC method, which requires to provide a CHANGING type parameter. As I've been told it's supposed to be empty table-placeholder for returned data. Unfortunately, I don't understand how to pass changing parameter correctly. I've looked to "Call" method of rfcMethod object and it seems like variable changing is provided when calling the rfc, but it always empty.

I always get this error: 10:22:41,949 ERROR JavaObject_InvokeMethod exception: com.sap.conn.jco.JCoRuntimeException: (127) JCO_ERROR_FIELD_NOT_FOUND : Field TAB_EMPLOYERS not a member of OUTPUT

Can you provide an example of passing CHANGING table with 2 columns to RFC method?

Thank you.

Here's my code:

rfcMethod = $SAP.RFC.New(connection, "Z_GET_EMPLOYER")

//after that, rfcMethod already has TAB_EMPLOYERS feature, but entering anything into it does not do anything
if IsUndefined(rfcMethod)
retval.errMsg = "ERROR creating SAP connection"
retval.ok = false
ok = false
end if ok
rfcMethod.IV_ABS_GUID = 'some guid'
rfcMethod.IV_CONTRACT_NUMBER = '' result = rfcMethod.Call() /*the definition of rfc method

*" IMPORTING
*" VALUE(IV_ABS_GUID) TYPE STRING OPTIONAL
*" VALUE(IV_CONTRACT_NUMBER) TYPE STRING OPTIONAL
*" EXPORTING
*" VALUE(EV_EMPLOYER_ABS_GUID) TYPE STRING
*" VALUE(EV_EMPLOYER_TITLE) TYPE STRING
*" CHANGING
*" VALUE(TAB_EMPLOYERS) TYPE ZEMPLOYERS

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Hans Stoop

Probably something like

rfcMethod.TAB_EMPLOYERS = RecArray.Create( {‘col1’, ‘col2’} )

Hans

From: eLink Entry: Content Server Development Forum [mailto:development@elinkkc.opentext.com]
Sent: Dienstag, 4. Juli 2017 15:36
To: eLink Recipient
Subject: Passing changing input to rfc method

Passing changing input to rfc method

Posted by Voronoj, Ruslan On 07/04/2017 09:19 AM

I always get this error: 10:22:41,949 ERROR JavaObject_InvokeMethod exception: com.sap.conn.jco.JCoRuntimeException: (127) JCO_ERROR_FIELD_NOT_FOUND : Field TAB_EMPLOYERS not a member of OUTPUT

Can you provide an example of passing CHANGING table with 2 columns to RFC method?

Thank you.

Here's my code:

rfcMethod = $SAP.RFC.New(connection, "Z_GET_EMPLOYER")
if IsUndefined(rfcMethod)
retval.errMsg = "ERROR creating SAP connection"
retval.ok = false
ok = false
end if ok
rfcMethod.IV_A_GUID = 'some guid'
rfcMethod.IV_CONTRACT_NUMBER = '' result = rfcMethod.Call() /*the definition of rfc method

*" IMPORTING
*" VALUE(IV_ABS_GUID) TYPE STRING OPTIONAL
*" VALUE(IV_CONTRACT_NUMBER) TYPE STRING OPTIONAL
*" EXPORTING
*" VALUE(EV_EMPLOYER_ABS_GUID) TYPE STRING
*" VALUE(EV_EMPLOYER_TITLE) TYPE STRING
*" CHANGING
*" VALUE(TAB_EMPLOYERS) TYPE ZEMPLOYERS

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Ruslan Voronoj

Hi, Hans! Thanks for answering.

I did that, but it doesn't work. I've looked insinde RFC.Call() method, and see that "callMethod" works without errors, but then it tries to get results with "getExportParameterValue" method, and when it tries to call "getExportParameterValue" on "TAB_EMPLOYERS" field, it fails with error:

JCO_ERROR_FIELD_NOT_FOUND : Field TAB_EMPLOYERS not a member of OUTPUT

It treats TAB_EMPLOYERS as export parameter while it's in fact a changing parameter. I also see then in some cases it should call "getTableParameterValue" and I tried to force it to use it on my "TAB_EMPLOYERS" field, and it failed with error "com.opentext.cs.jsaprfc.JSAPRFCException: RFC has no table parameter TAB_EMPLOYERS."

please help

Quoted Hans Stoop on 07/05/2017 11:06 AM:

Probably something like

rfcMethod.TAB_EMPLOYERS = RecArray.Create( {‘col1’, ‘col2’} )

Hans

Passing changing input to rfc method

Posted by Voronoj, Ruslan On 07/04/2017 09:19 AM

I always get this error: 10:22:41,949 ERROR JavaObject_InvokeMethod exception: com.sap.conn.jco.JCoRuntimeException: (127) JCO_ERROR_FIELD_NOT_FOUND : Field TAB_EMPLOYERS not a member of OUTPUT

Can you provide an example of passing CHANGING table with 2 columns to RFC method?

Thank you.

Here's my code:

[To post a comment, use the normal reply function]
Forum:	Content Server Development Forum
Content Server:	Knowledge Center CS16

Hans Stoop

This seems a restriction in JCO or you should change the RFC function.

It seems that for tables it is better to use a table parameter in the RFC definition and not a changing parameter.

Changing parameter probably only work correctly for simple attributes like String.

You can try opening a ticket with OpenText support.

Hans

From: eLink Entry: Content Server Development Forum [mailto:development@elinkkc.opentext.com]
Sent: Mittwoch, 5. Juli 2017 10:07
To: eLink Recipient
Subject: RE Passing changing input to rfc method

RE Passing changing input to rfc method

Posted by Voronoj, Ruslan On 07/05/2017 04:06 AM

Hi, Hans! Thanks for answering.

Quoted Hans Stoop on 07/05/2017 11:06 AM:

Probably something like

rfcMethod.TAB_EMPLOYERS = RecArray.Create( {‘col1’, ‘col2’} )

Hans

Passing changing input to rfc method

Posted by Voronoj, Ruslan On 07/04/2017 09:19 AM

I always get this error: 10:22:41,949 ERROR JavaObject_InvokeMethod exception: com.sap.conn.jco.JCoRuntimeException: (127) JCO_ERROR_FIELD_NOT_FOUND : Field TAB_EMPLOYERS not a member of OUTPUT

Can you provide an example of passing CHANGING table with 2 columns to RFC method?

Thank you.

Here's my code:

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Forum:	Content Server Development Forum
Content Server:	Knowledge Center CS16

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Topic:	Passing changing input to rfc method
Forum:	Content Server Development Forum
Content Server:	Knowledge Center CS16