Package uk.ac.starlink.topcat

Class BooleanColumnRowSubset

java.lang.Object
uk.ac.starlink.topcat.RowSubset
uk.ac.starlink.topcat.BooleanColumnRowSubset
public class BooleanColumnRowSubset extends RowSubset
A RowSubset implementation based on a boolean column of a StarTable.

  • Constructor Details

    • BooleanColumnRowSubset

      public BooleanColumnRowSubset(uk.ac.starlink.table.StarTable startab, int icol)
      Constructs a row subset from a given StarTable and column index.
      Parameters:
      startab - the table
      icol - the index of the column in that table
      Throws:
      IllegalArgumentException - if the content class of the table column is not Boolean

  • Method Details

    • isIncluded

      public boolean isIncluded(long lrow)
      Description copied from class: RowSubset
      Indicates whether a given row is in the subset or not.
      Specified by:
      isIncluded in class RowSubset
      Parameters:
      lrow - the index of the row in question
      Returns:
      true iff row lrow is to be included

    • getTable

      public uk.ac.starlink.table.StarTable getTable()
      Returns the table from whose column this subset is based.
      Returns:
      table

    • getColumnIndex

      public int getColumnIndex()
      Returns the index of the column in the table on which this subset's contents are based.
      Returns:
      column index