Package uk.ac.starlink.ttools.jel

Class DummyJELRowReader

java.lang.Object
gnu.jel.DVMap
uk.ac.starlink.ttools.jel.JELRowReader
uk.ac.starlink.ttools.jel.StarTableJELRowReader
uk.ac.starlink.ttools.jel.DummyJELRowReader
public class DummyJELRowReader extends StarTableJELRowReader
JELRowReader which can't actually read any rows. It's only good for identifying columns, checking or evaluating JEL expressions in a per-table (not per-row) context, etc.
Since:
3 Mar 2005
Author:
Mark Taylor (Starlink)

  • Constructor Details

    • DummyJELRowReader

      public DummyJELRowReader(uk.ac.starlink.table.StarTable baseTable)
      Constructor.
      Parameters:
      baseTable - table whose columns this reader will be based on

  • Method Details

    • getCell

      protected Object getCell(int icol)
      Throws UnsupportedOperationException.
      Specified by:
      getCell in class StarTableJELRowReader
      Parameters:
      icol - column index
      Returns:
      contents of column icol at the current row

    • getCurrentRow

      public long getCurrentRow()
      Description copied from class: StarTableJELRowReader
      Returns the index of the row on which evaluations are currently taking place.
      Specified by:
      getCurrentRow in class StarTableJELRowReader
      Returns:
      row index (first row is 0)