public void addToMy_enumset(MyEnum elem) {
    if (this.my_enumset == null) {
      this.my_enumset = java.util.EnumSet.noneOf(MyEnum.class);
    }
    this.my_enumset.add(elem);
  }
Returns true if field my_stringset is set (has been assigned a value) and false otherwise
serde/src/gen/thrift/gen-javabean/org/apache/hadoop/hive/serde2/thrift/test/MegaStruct.java