uk.ac.starlink.table
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
Method Summary |
Object |
readValue(long irow)
Returns the value stored at a given row in this column. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
ConstantColumn
public ConstantColumn(ColumnInfo colinfo,
Object value)
- Constructs a new column with a given metadata object and constant
datum.
- Parameters:
colinfo
- column metadatavalue
- value to be found in every cell of this column
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