Getting data from a backend function module

[Former Member]

Dear Expert,

I am new to the Java webdynpro. 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 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.

Do i need to do any java code for that? I saw in the component controller where my ex developer written some customize code like below:

import com.sap.xss.hr.cod.model1.Zhrxss_Cod_Get_Details_Input;

private void callRFCGetDetails() {

wdContext.nodeGet_Details_Input().bind(new Zhrxss_Cod_Get_Details_Input());

try {

wdContext.currentGet_Details_InputElement().setPernr(pernr);

wdContext.currentGet_Details_InputElement().modelObject().execute();

} catch (Exception ex) {

fpm.getMessageManager().raiseException(wdThis.wdGetAPI().getComponent(), ex);

}

wdContext.nodeGet_Details_Output().invalidate();

fpm.getMessageManager().deleteAllMessages(wdThis.wdGetAPI().getComponent());

if (!"000".equals(wdContext.currentReturn_TableElement().getNumber())) {

if ("004".equals(wdContext.currentReturn_TableElement().getNumber())) {

fpm.getMessageManager().raiseException(

wdThis.wdGetAPI().getComponent(),

IMessageManager.DEFAULT_EXCEPTION,

wdContext.currentReturn_TableElement());

} else {

fpm.getMessageManager().reportMessage(wdThis.wdGetAPI().getComponent(), wdContext.currentReturn_TableElement());

}

}

}

Please advise me....Thanks in Advance

Regards,

Bryan

[Former Member]

Thanks All

Problem solved

[Former Member]

Hi brain,

Try to solve this code below..

private void callRFCGetDetails() {

Zhrxss_Cod_Get_Details_Input input=new Zhrxss_Cod_Get_Details_Input();

wdContext.nodeGet_Details_Input().bind(input);

try {

input.setPernr(pernr);

wdContext.currentGet_Details_InputElement().modelObject().execute();

} catch (Exception ex) {

fpm.getMessageManager().raiseException(wdThis.wdGetAPI().getComponent(), ex);

}

wdContext.nodeGet_Details_Output().invalidate();

fpm.getMessageManager().deleteAllMessages(wdThis.wdGetAPI().getComponent());

int size=wdContext.nodeGet_Details_Output().size();

for(int i=0;i<size;i++){

if (!"000".equals(wdContext.nodecurrentReturn_Table().getReturn_TablerElementAt(i).getNumber())) {

if ("004".equals(wdContext.nodecurrentReturn_Table().getReturn_TablerElementAt(i).getNumber())) {

fpm.getMessageManager().raiseException(

wdThis.wdGetAPI().getComponent(),

IMessageManager.DEFAULT_EXCEPTION,

wdContext.currentReturn_TableElement());

} else {

fpm.getMessageManager().reportMessage(wdThis.wdGetAPI().getComponent(), wdContext.currentReturn_TableElement());

}

}

}

}

Hope this will work fine.

Thanks

jati

[Former Member]

Hi Jati,

What do u mean? This is my existing code.

Thanks.

Regards,

Bryan

[pravesh_verma]

Hi Brian,

Please replace this code snippet with the code I have manetioned below. Your code:

if (!"000".equals(wdContext.currentReturn_TableElement().getNumber())) {
if ("004".equals(wdContext.currentReturn_TableElement().getNumber())) {
fpm.getMessageManager().raiseException(
wdThis.wdGetAPI().getComponent(),
IMessageManager.DEFAULT_EXCEPTION,
wdContext.currentReturn_TableElement());
} else {
fpm.getMessageManager().reportMessage(wdThis.wdGetAPI().getComponent(), wdContext.currentReturn_TableElement());
}
}

Here you should note that the you are always gettin gthe current return_table element and checking it. instead I guess since it is a call details method (callRFCGetDetails()) therefore you should iterate over all the elements of return_table and then check for the conditon to raise the exception..

Please try and replace the code above with this code:

for(int i=0;i<size;i++){
if (!"000".equals(wdContext.nodecurrentReturn_Table().getReturn_TablerElementAt(i).getNumber())) {
if ("004".equals(wdContext.nodecurrentReturn_Table().getReturn_TablerElementAt(i).getNumber())) {
fpm.getMessageManager().raiseException(
wdThis.wdGetAPI().getComponent(),
IMessageManager.DEFAULT_EXCEPTION,
wdContext.currentReturn_TableElement());
} else {
fpm.getMessageManager().reportMessage(wdThis.wdGetAPI().getComponent(), wdContext.currentReturn_TableElement());
}
}
}

In this code you will iterate over all the node elemetns and then raise the exception based on some checks which yiu have done.

I hope this solves the issue. Please revert back in case of any other issue.

Thanks and Regards,

Pravesh

[Former Member]

Hi Pravesh,

I have done the model binding and context binding and add the following code to the do init

Zhrxss_Cod_Validate_Input Input = new Zhrxss_Cod_Validate_Input();

wdContext.nodeZhrxss_Cod_Validate_Input().bind(Input);

try {

wdContext.currentZhrxss_Cod_Validate_InputElement().modelObject().execute();

wdContext.nodeCod_Validate_Output().invalidate();

} catch (Exception ex) {

fpm.getMessageManager().raiseException(wdThis.wdGetAPI ().getComponent(), ex);

}

When i run the application, i am getting java.lang.ArrayIndexOutOfBoundsException: -1 ?

Can u give me some idea where i have gone wrong?

Thanks.

Regards,

Bryan.

[Former Member]

Hi brain,

You are missing to set the pernr ..

Zhrxss_Cod_Validate_Input Input = new Zhrxss_Cod_Validate_Input();

wdContext.nodeZhrxss_Cod_Validate_Input().bind(Input);

Input .setPernr(pernr);

try {

wdContext.currentZhrxss_Cod_Validate_InputElement().modelObject().execute();

wdContext.nodeCod_Validate_Output().invalidate();

} catch (Exception ex) {

fpm.getMessageManager().raiseException(wdThis.wdGetAPI ().getComponent(), ex);

}

thanks

jati

[Former Member]

Hi Jati,

I did not need to use the pernr to retrieve the export parameter that i need. Do i still need to set the pernr?

Thanks.

Regards,

Bryan

[Former Member]

Refer this link for understanding:

http://help.sap.com/saphelp_nw04/helpdata/en/66/8b3c413b456e24e10000000a155106/frameset.htm

Edited by: Anagha Jawalekar on Apr 7, 2009 12:07 AM