Java and SAP JCoFunction getting no data

Question

Hi I need help with a SAP integration with java. I don't know much about SAP but if I'm getting a function with the next template using the Java JcoFunction.

Input:
IV_SIZE_EXCHG  
IV_TRGID  
Changing:
null
Output:
EV_TOTAL_ZDT1  
Tables:
ET_ARTICLES  
ET_LOCATION_KEYS
ET_TREAGERS  
IT_LOCATION_KEYS
RETURN  
Exceptions:

My client gets data with SAP filtering by the table IT_LOCATION_KEYS. But as you can see the table is on the output side and not on the input. Can this works on Java?

By the way there is any way to get all data with a limit or top like in SQL. Thanks

This is my code

JCoParameterList importParameterList = function.getImportParameterList();

JCoTable articlesTable = importParameterList.getTable("IT_LOCATION_KEYS");
articlesTable.appendRow();
articlesTable.setValue(PARAM_CUSTOMER_NUMBER, request.getCustomer().getCustomerNumber());
articlesTable.setValue(PARAM_CONTRACT_NUMBER, request.getContractNumber());
articlesTable.setValue(PARAM_LOCATION, request.getLocation());

And when I tried to get the table IT_LOCATION_KEYS it says that there is no input table.

I also tried to get the table using the next code.

JCoTable articlesTable = function.getTableParameterList().getTable("IT_LOCATION_KEYS");

This seems to work fine but now the problem is that I still can't get any data by the export.

function.getExportParameterList()

The result is

|------------|
| PARAMETERS 'OUTPUT'
|------------|
|EV_TOTAL_ZDT|
|------------|
|   0   1   2|
|------------|
|00000000000C|
|------------|

And the output tables are always empty.

function.getTableParameterList().getTable("ET_LOCATION_KEYS");

Answer 1

TABLES parameters are always changing parameters (in- and output), regardless of their name. It's up to the implementation what they are actually used for.

You will need to use getTableParameterList() to access the parameter.