Package org.apache.flink.table.utils.print

Class TableauStyle

java.lang.Object
org.apache.flink.table.utils.print.TableauStyle
All Implemented Interfaces:
PrintStyle
@Internal public final class TableauStyle extends Object implements PrintStyle
Print the result and content as tableau form.

For example: (printRowKind is true) 

 +----+-------------+---------+-------------+
 | op | boolean_col | int_col | varchar_col |
 +----+-------------+---------+-------------+
 | +I |        true |       1 |         abc |
 | -U |       false |       2 |         def |
 | +U |       false |       3 |         def |
 | -D |      <NULL> |  <NULL> |      <NULL> |
 +----+-------------+---------+-------------+
 4 rows in set

  • Method Details

    • getColumnWidths

      @Nullable public int[] getColumnWidths()
      Returns null if the column widths are not precomputed using the row type.

    • print

      public void print(Iterator<RowData> it, PrintWriter printWriter)
      Description copied from interface: PrintStyle
      Displays the result.
      Specified by:
      print in interface PrintStyle
      Parameters:
      it - The iterator for the data to print
      printWriter - The writer to write to

    • printEmptyResult

      public void printEmptyResult(Iterator<RowData> it, PrintWriter printWriter)

    • printTable

      public long printTable(Iterator<RowData> it, PrintWriter printWriter)
      Print table with column names and borders.
      Returns:
      the row number printed in the table

    • printFooter

      public void printFooter(PrintWriter printWriter, long numRows)

    • inferColumnWidth

      public void inferColumnWidth(List<String[]> rowData)

    • rowFieldsToString

      public String[] rowFieldsToString(RowData row)

    • printColumnNamesTableauRow

      public void printColumnNamesTableauRow(PrintWriter printWriter)

    • printTableauRow

      public void printTableauRow(String[] cols, PrintWriter printWriter)

    • printBorderLine

      public void printBorderLine(PrintWriter printWriter)