How do you work with ENUM java fields in RPG-JNI interface?

I'm trying to do something like the following in RPG to create a pivot
table. The DataConsolidateFunction say that its supposed to return an ENUM
value. How do you work with that in RPG?


java example:
pivotTable.addColumnLabel(DataConsolidateFunction.SUM,2)

RPG equivalent that I have so far, but I realize is not correct:
DCL-PR addColumnLabel EXTPROC(*JAVA :
'org.apache.poi.xssf.usermodel+
.XSSFPivotTable' : 'addColumnLabel' );
arg0 OBJECT(*JAVA
: 'org.apache.poi.ss.usermodel.DataConsolidateFunction' );
arg1 INT(10) VALUE;
END-PR ;
callp addColumnLabel(PivotTable :
DataConsolidateFuntion.Sum : 2)



This from the POI javadoc:
java.lang.Enum<DataConsolidateFunction>
org.apache.poi.ss.usermodel.DataConsolidateFunction