public void setRows(@org.apache.thrift.annotation.Nullable java.util.List<java.util.List<java.lang.String>> rows) {
    this.rows = rows;
  }
Returns true if field headerNames is set (has been assigned a value) and false otherwise
service-rpc/src/gen/thrift/gen-javabean/org/apache/hive/service/rpc/thrift/TProgressUpdateResp.java