Package uk.ac.starlink.topcat.plot
Class ConstantColumnData
java.lang.Object
uk.ac.starlink.table.ColumnData
uk.ac.starlink.topcat.plot.ConstantColumnData
public class ConstantColumnData
extends uk.ac.starlink.table.ColumnData
ColumnData implementation which always returns the same Double value.
The
equals
and hashCode
methods are implemented
so that instances with the same values are equal to each other.- Since:
- 1 Jun 2007
- Author:
- Mark Taylor
-
Field Summary
FieldsModifier and TypeFieldDescriptionstatic final ConstantColumnData
Instance with values of Double.NaN.static final ConstantColumnData
Instance with values of 1.static final ConstantColumnData
Instance with values of 0. -
Constructor Summary
Constructors -
Method Summary
Methods inherited from class uk.ac.starlink.table.ColumnData
getColumnInfo, isWritable, setColumnInfo, storeValue
-
Field Details
-
ZERO
Instance with values of 0. -
ONE
Instance with values of 1. -
NAN
Instance with values of Double.NaN.
-
-
Constructor Details
-
ConstantColumnData
Constructor.- Parameters:
name
- column namevalue
- constant column value
-
-
Method Details