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TTworkbench: How do I implement the return value for an external function in Java?

Environment/Versions
TTworkbench 32/64 Bit Linux/Windows
Answer
Example:

Definition of the external function and return type enum1 in TTCN-3  :
external function f (integer i1, integer i2) return enum1;

Where enum1 is defined as follows:

type enumerated enum1{
success (0),
error (1),
timeout (2)
}

Definition of the external function in Java:
public EnumeratedValue f (IntegerValue i1, IntegerValue i2){
.....
//1. An instance of enum1 is created with the method newTypeForNameValue from the abstract class AbstractValuePlugin,
EnumeratedValue retval = (EnumeratedValue)newTypeForNameValue("MyTTCN-3ModuleName.enum1");
//2. The values of the enum can be set.
retval.setEnum("success");
retval.setEnum("error");
retval.setEnum("timeout");
return(retval);
}

 

Product : TTCN-3 Language