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java.lang.Objectuk.ac.starlink.table.ColumnData
uk.ac.starlink.table.ConstantColumn
public class ConstantColumn
Represents a column which has the same value in every row.
Constructor Summary | |
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ConstantColumn(ColumnInfo colinfo,
java.lang.Object value)
Constructs a new column with a given metadata object and constant datum. |
Method Summary | |
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java.lang.Object |
readValue(long irow)
Returns the value stored at a given row in this column. |
Methods inherited from class uk.ac.starlink.table.ColumnData |
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getColumnInfo, isWritable, setColumnInfo, storeValue |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public ConstantColumn(ColumnInfo colinfo, java.lang.Object value)
colinfo
- column metadatavalue
- value to be found in every cell of this columnMethod Detail |
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public java.lang.Object readValue(long irow)
ColumnData
readValue
in class ColumnData
irow
- the row from which to retrieve the value
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