Package org.plumelib.util

Class ToStringComparator

java.lang.Object

org.plumelib.util.ToStringComparator

All Implemented Interfaces:

Comparator<Object>

public final class ToStringComparator
extends Object
implements Comparator<Object>

A comparator that orders values based on the lexicographic ordering of their toString().

It handles null values, sorting them according to their printed representation "null".

Field Summary

Fields

Modifier and Type	Field	Description
static final ToStringComparator	instance	The unique instance (this class is a singleton).

Method Summary

Modifier and Type	Method	Description
int	compare(Object o1, Object o2)
static <T extends @Nullable @Signed Object> List<T>	sorted(Iterable<T> in)	Returns a copy of the input, sorted according to the elements' toString().

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

Field Details

instance

public static final ToStringComparator instance

The unique instance (this class is a singleton).

Method Details

compare

public int compare(Object o1,
 Object o2)

Specified by:

compare in interface Comparator<Object>

sorted

public static <T extends @Nullable @Signed Object>
List<T> sorted(Iterable<T> in)

Returns a copy of the input, sorted according to the elements' toString().

Type Parameters:

T - the type of the elements

Parameters:

in - a set of elements

Returns:

the elements, sorted according to toString()