public void setFieldValue(_Fields field, @org.apache.thrift.annotation.Nullable java.lang.Object value) {
    switch (field) {
    case GUID:
      if (value == null) {
        unsetGuid();
      } else {
        if (value instanceof byte[]) {
          setGuid((byte[])value);
        } else {
          setGuid((java.nio.ByteBuffer)value);
        }
      }
      break;

    case SECRET:
      if (value == null) {
        unsetSecret();
      } else {
        if (value instanceof byte[]) {
          setSecret((byte[])value);
        } else {
          setSecret((java.nio.ByteBuffer)value);
        }
      }
      break;

    }
  }
Returns true if field secret is set (has been assigned a value) and false otherwise
service-rpc/src/gen/thrift/gen-javabean/org/apache/hive/service/rpc/thrift/THandleIdentifier.java