Mapping Exception Issue with RFC LookUp

[Former Member]

Hi,

My scenario is Idoc To file, in my idoc user who created a purchase order filed is not there but in xml file i want the user who create that PO, for this i am using RFC LooUp. I want the user who created a purchase order.

Graphical Mapping looks like below.

Belnr--

---

>User Defined Function--

---

>UserName

Please find the code bloew:

String DBTABLE = "EKKO";

String lookUpField = "ERNAM";

String WHERE_CLAUSE = " EBELN "" = "" ' "a" ' " ;

JCO.Repository mRepository;

JCO.Client mConnection = JCO.createClient(

"500",

"RFCUSER",

"abc1234",

"EN",

"cxylo06",

"05");

// connect to SAP

mConnection.connect();

// create repository

mRepository = new JCO.Repository( "GenericRFCMappingLookup", mConnection );

// create function template to select data from any table

JCO.Function function = null;

IFunctionTemplate ft = mRepository.getFunctionTemplate("RFC_READ_TABLE");

function = ft.getFunction();

// Obtain parameter list for function

JCO.ParameterList input = function.getImportParameterList();

// Pass function parameters

// set import parameters table name and RFC

input.setValue( DBTABLE, "QUERY_TABLE");

input.setValue( "," , "DELIMITER");

//Fill the where clause of the table

JCO.ParameterList tabInput = function.getTableParameterList();

JCO.Table inputTable = tabInput.getTable("OPTIONS");

inputTable.appendRow();

inputTable.setValue(WHERE_CLAUSE,"TEXT");

mConnection.execute( function );

//Find the position of the field that has to be lookedUp

JCO.Table lookupFieldPos = function.getTableParameterList().getTable("FIELDS");

int pos = -1;

for (int i = 0; i < lookupFieldPos.getNumRows(); i++)

{

lookupFieldPos.setRow(i);

if (lookupFieldPos.getString("FIELDNAME").equals(lookUpField))

pos = i;

}

//Get the exact lookupvalue from the position obtained above

JCO.Table valueSet = function.getTableParameterList().getTable("DATA");

valueSet.setRow(0);

String resultSet = valueSet.getString("WA");

result.addValue(resultSet);

mConnection.disconnect();

I am not aware of java coding so kindly make necessary modifications.

Kindly suggest what changes i need to do to execute perfectly.

Your help will be greatly apprecited.

Regards,

Venkat

[Former Member]

Hi Venkat,

If you use the JCO connection to get the value from RFC, it would be a problem in futherly like when you move this interface DEV to Q, then you need to change the connection parameters to establish the JCO connection.Same in Production environment too.It is not advisable to do JCO lookup. Go for RFC lookup as the link given by Farooq.

Create Reciever RFC communication channel and take the XML signature of u r RFC by importing that RFC under imported objects.Create an UDF, for this see the sample code which is exisitng in document to pass the Export parameter to RFC.

In this way u r RFC channel establish the connection to R3 and your RFC will execute and return the value.U just need to change the Reciever RFC channel parameters respective of environment.

Cheers

Veera

[Former Member]

By using the above mentioned code i could able to connect to sap system byt unable to retrieve the user name, kindly suggest what maodifications to be made.

Regards,

Venkat

[Former Member]

why you are using JCO?

YOu can use RFC lookup API's..but it will work for SP14 or above.

Thanks

Farooq.

[Former Member]

Refer this Article : by Michal.

Mapping lookups – RFC API : https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/a03e7b02-eea4-2910-089f-8214c6d1...

Thanks

Farooq.