public void setFieldValue(_Fields field, @org.apache.thrift.annotation.Nullable java.lang.Object value) {
    switch (field) {
    case OPERATOR_ID:
      if (value == null) {
        unsetOperatorId();
      } else {
        setOperatorId((java.lang.String)value);
      }
      break;

    case OPERATOR_TYPE:
      if (value == null) {
        unsetOperatorType();
      } else {
        setOperatorType((OperatorType)value);
      }
      break;

    case OPERATOR_ATTRIBUTES:
      if (value == null) {
        unsetOperatorAttributes();
      } else {
        setOperatorAttributes((java.util.Map<java.lang.String,java.lang.String>)value);
      }
      break;

    case OPERATOR_COUNTERS:
      if (value == null) {
        unsetOperatorCounters();
      } else {
        setOperatorCounters((java.util.Map<java.lang.String,java.lang.Long>)value);
      }
      break;

    case DONE:
      if (value == null) {
        unsetDone();
      } else {
        setDone((java.lang.Boolean)value);
      }
      break;

    case STARTED:
      if (value == null) {
        unsetStarted();
      } else {
        setStarted((java.lang.Boolean)value);
      }
      break;

    }
  }
Returns true if field started is set (has been assigned a value) and false otherwise
ql/src/gen/thrift/gen-javabean/org/apache/hadoop/hive/ql/plan/api/Operator.java