Return And Exception statements in UDF

[Former Member]

Hi All,

I am trying to use UDF in my scenario.

Can anyone please say how to add return statement in UDF as bcuz default return type is void.

I am not able to change it .

Also I tried to add exception in my function but again I failed .

Can anyone help me to solve both of these problem please?

I am using PI 7.0

Thanks

Rabi

[Former Member · Accepted solution]

Return Value depends on Execution type which you select while writing UDF.

If the Execution type is Single values then return value is String,if the execution type is All values of Context or All values of Queue then return resultList.

Check the below Link

[Former Member · Accepted solution]

Hi All,

This is great .

Thanks you all.

But I want to know how can I add exception to the method I am declaring .

Whether this is possible or not in PI.

Please help me to solve this.

Thanks

Rabi

[Former Member · Accepted solution]

To declare an Exception field as a parameter in the UDF, you need to declare a parameter typed "Exception".

If you want to know if an exception can be thrown, this is not possible in my opinion (how can be managed in graphical mapping??)

[Former Member]

To return an exception, you can declare a variable type Exception in Return Definition of UDF.

Then use the TRY-CATCH statement in the UDF to get the exception.

try {
//Code
} catch (Exception e) {
    // Exception
    String lv_exception_text = e.getMessage().toString();
    return lv_exception_text.
}

[Shabarish_Nair]

if you are using a simple UDF, you can write the return statement to pass the output value

else in case of advanced UDF, you will use the resultlist

ex. http://wiki.sdn.sap.com/wiki/display/Snippets/UDFforZeroPaddingon+Left

[markangelo_dihiansan]

Hello,

Can anyone please say how to add return statement in UDF as bcuz default return type is void.
I am not able to change it .

Return type is not possible for context and queue type UDF. Use result.addValue(String); instead.

Hope this helps,

Mark