@java.lang.Override public boolean hasEnumType() {
      return ((bitField0_ & 0x00010000) != 0);
    }
<code>optional .AllTypes.Enum1 enumType = 20;</code>
@return Whether the enumType field is set.
ql/src/gen/protobuf/gen-test/org/apache/hadoop/hive/ql/io/protobuf/SampleProtos.java