@Override
        public String toString() {
            return stringVal;
        }
The available Hive versions.  These are only available on Hadoop 0.20
 Hive_0_5 Hive 0.5
 Hive_0_7 Hive 0.7
 Hive_0_7_1 Hive 0.7.1
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/util/StepFactory.java