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org.jfree.data

Class KeyedValueComparator

Implemented Interfaces:
Comparator
public class KeyedValueComparator
extends java.lang.Object
implements Comparator
A utility class that can compare and order two KeyedValue instances and sort them into ascending or descending order by key or by value.

Constructor Summary

KeyedValueComparator(KeyedValueComparatorType type, SortOrder order)
Creates a new comparator.

Method Summary

int
compare(Object o1, Object o2)
Compares two KeyedValue instances and returns an int that indicates the relative order of the two objects.
SortOrder
getOrder()
Returns the sort order.
KeyedValueComparatorType
getType()
Returns the type.

Constructor Details

KeyedValueComparator

public KeyedValueComparator(KeyedValueComparatorType type,
                            SortOrder order)
Creates a new comparator.
Parameters:
type - the type (BY_KEY or BY_VALUE, null not permitted).
order - the order (null not permitted).

Method Details

compare

public int compare(Object o1,
                   Object o2)
Compares two KeyedValue instances and returns an int that indicates the relative order of the two objects.
Parameters:
o1 - object 1.
o2 - object 2.
Returns:
An int indicating the relative order of the objects.

getOrder

public SortOrder getOrder()
Returns the sort order.
Returns:
The sort order (never null).

getType

public KeyedValueComparatorType getType()
Returns the type.
Returns:
The type (never null).

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