Package org.opencms.file.collectors

Class ComparatorInverter

java.lang.Object

org.opencms.file.collectors.ComparatorInverter

All Implemented Interfaces:

Comparator<I_CmsResource>

public final class ComparatorInverter
extends Object
implements Comparator<I_CmsResource>

Wrapper around a comparator that inverts comparison results which may e.g. be used to invert sort orders.

This is used to create SortedSet instances that may sort in different order (ascending vs. descending).

Internal comparator result	Transformed result
-1	+1
0	0
+1	-1

Since:

7.0.3

Constructor Summary

Constructors

Constructor	Description
ComparatorInverter(Comparator<I_CmsResource> toInvert)	Creates a comparator that will invert the result of the given comparator.

Method Summary

Modifier and Type	Method	Description
int	compare(I_CmsResource o1, I_CmsResource o2)

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, reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Details

ComparatorInverter

public ComparatorInverter(Comparator<I_CmsResource> toInvert)

Creates a comparator that will invert the result of the given comparator.

Parameters:

toInvert - the comparator to invert results of

Method Details

compare

public int compare(I_CmsResource o1,
 I_CmsResource o2)

Specified by:

compare in interface Comparator<I_CmsResource>

See Also:

• Comparator.compare(java.lang.Object, java.lang.Object)