org.knime.core.data.image.png
Class PNGImageValueComparator

java.lang.Object
  org.knime.core.data.DataValueComparator
      org.knime.core.data.image.png.PNGImageValueComparator

All Implemented Interfaces:

Comparator<DataCell>

public class PNGImageValueComparator
extends DataValueComparator

A special DataCellComparator for the ImageCells.

Author:

Thomas Gabriel, KNIME.com AG, Zurich

Constructor Summary

PNGImageValueComparator()

Method Summary

protected int

compareDataValues(DataValue v1, DataValue v2) Do not call this function, rather call the DataValueComparator.compare(DataCell, DataCell) method, which handles missing cells.

Methods inherited from class org.knime.core.data.DataValueComparator

compare

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

equals

Constructor Detail

PNGImageValueComparator

public PNGImageValueComparator()

Method Detail

compareDataValues

protected int compareDataValues(DataValue v1,
                                DataValue v2)

Do not call this function, rather call the DataValueComparator.compare(DataCell, DataCell) method, which handles missing cells. The derived class should compare the two passed DataValues. It can be safely assumed that both values are castable to the specific type of the DataValue that returned this comparator.

Specified by:

compareDataValues in class DataValueComparator

Parameters:

v1 - the first DataValue to compare the other with

v2 - the other DataValue to compare the first with

Returns:

return -1 if v1 is smaller than v2, +1 if v1 is larger than v2, 0 otherwise