Class ConstantColumn

java.lang.Object
uk.ac.starlink.table.ColumnData
uk.ac.starlink.table.ConstantColumn

public class ConstantColumn extends ColumnData
Represents a column which has the same value in every row.
Since:
19 Sep 2006
Author:
Mark Taylor
  • Constructor Details

    • ConstantColumn

      public ConstantColumn(ColumnInfo colinfo, Object value)
      Constructs a new column with a given metadata object and constant datum.
      Parameters:
      colinfo - column metadata
      value - value to be found in every cell of this column
  • Method Details

    • readValue

      public Object readValue(long irow)
      Description copied from class: ColumnData
      Returns the value stored at a given row in this column.
      Specified by:
      readValue in class ColumnData
      Parameters:
      irow - the row from which to retrieve the value
      Returns:
      the value stored at irow