uk.ac.starlink.ttools.plot2.layer

Class BinResultColumnData<T>

java.lang.Object

uk.ac.starlink.table.ColumnData

uk.ac.starlink.ttools.plot2.layer.BinResultColumnData<T>

Type Parameters:

T - type of ValueInfo content class, should be numeric

public class BinResultColumnData<T>
extends ColumnData

ColumnData implementation that presents the values from a BinList.Result object, assuming bin index is the row number.

Method Summary

Modifier and Type	Method and Description
static BinResultColumnData<?>	createInstance(ValueInfo info, BinList.Result binResult, double binFactor) Returns a ColumnData instance for a given metadata object and bin data set.
T	readValue(long irow) Returns the value stored at a given row in this column.

Methods inherited from class uk.ac.starlink.table.ColumnData

getColumnInfo, isWritable, setColumnInfo, storeValue

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

readValue

public T 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

createInstance

public static BinResultColumnData<?> createInstance(ValueInfo info,
                                                    BinList.Result binResult,
                                                    double binFactor)

Returns a ColumnData instance for a given metadata object and bin data set. The content class of info must be one of the numeric wrapper types.

Parameters:

info - required metadata for returned column, with some numeric content class

binResult - supplies data

binFactor - multiplier for all bin values; typically obtained using Combiner.Type.getBinFactor

Returns:

new column data