Please help..Issue on getting parameter from a backend fm

Question

Dear Expert,
I have a requirement which is to edit the ess~cod for the employee communication. I have copy out the function group ZHRXSS_COD_INTERFACE. I created my own function module ZCOD_VALIDATE and attached to the function group. My funtion module are just returning an export parameter and a table without getting any import parameter.
I have create a ZCodModel (pointing to the ECC function group) and the model class is ZCod_Validate_Output. I have done all the reimporting of the model and context binding. My question is why i still not getting any value from the function module. I tested the fm in ecc and it works well.
I have added the following code in do init.
ZCod_Validate_Input Input = new ZCod_Validate_Input();
wdContext.nodeZCod_Validate_Input().bind(Input);
try {
wdContext.currentZCod_Validate_InputElement().modelObject().execute();
wdContext.nodeCod_Validate_Output().invalidate();
} catch (Exception ex) {
fpm.getMessageManager().raiseException(wdThis.wdGetAPI ().getComponent(), ex);
Anyone can tell me why i am not getting the parameter? Please help me.
Thanks.
Regards,
Bryan

Answer 1

Hi Siva,
Thanks for your reply.
I got this error when i execute it? Anyway my function module does also return a table but i have yet to define a context to store it. I am just trying to get the value of the export parameter. If it success, then i can proceed to bind the table. However now, it seem getting an export parameter also giving me problems.
java.lang.ArrayIndexOutOfBoundsException: -1
    at com.sap.mw.jco.JCO$Record.getString(JCO.java:12798)
    at com.sap.aii.proxy.framework.core.JcoBaseTypeData.getElementValueAsString(JcoBaseTypeData.java:669)
    at com.sap.tc.webdynpro.modelimpl.dynamicrfc.DynamicRFCModelClass.getAttributeValueAsString(DynamicRFCModelClass.java:427)
    at com.sap.xss.hr.cod.model1.Zhrxss_Cod_Validate_Output.getNameofposition(Zhrxss_Cod_Validate_Output.java:164)
    at com.sap.xss.hr.cod.wdp.IPublicFcCodBusinessLogicComp$IZhrxss_Cod_Validate_OutputElement.wdGetObject(IPublicFcCodBusinessLogicComp.java:6601)
Thanks.
Regards,
Bryan