com.helger.commons.collections

Class EmptySortedSet

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractSet<Object>

com.helger.commons.collections.EmptySortedSet

All Implemented Interfaces:

Iterable<Object>, Collection<Object>, Set<Object>, SortedSet<Object>

public final class EmptySortedSet
extends AbstractSet<Object>
implements SortedSet<Object>

Default implementation of an empty sorted set.

Author:

Philip Helger

Method Summary

Methods

Modifier and Type	Method and Description
Comparator<Object>	comparator()
boolean	contains(Object obj)
Object	first()
static <ELEMENTTYPE> SortedSet<ELEMENTTYPE>	getInstance()
SortedSet<Object>	headSet(Object toElement)
Iterator<Object>	iterator()
Object	last()
int	size()
SortedSet<Object>	subSet(Object fromElement, Object toElement)
SortedSet<Object>	tailSet(Object fromElement)

Methods inherited from class java.util.AbstractSet

equals, hashCode, removeAll

Methods inherited from class java.util.AbstractCollection

add, addAll, clear, containsAll, isEmpty, remove, retainAll, toArray, toArray, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Set

add, addAll, clear, containsAll, equals, hashCode, isEmpty, remove, removeAll, retainAll, toArray, toArray

Method Detail

iterator

public Iterator<Object> iterator()

Specified by:

iterator in interface Iterable<Object>

Specified by:

iterator in interface Collection<Object>

Specified by:

iterator in interface Set<Object>

Specified by:

iterator in class AbstractCollection<Object>

size

public int size()

Specified by:

size in interface Collection<Object>

Specified by:

size in interface Set<Object>

Specified by:

size in class AbstractCollection<Object>

contains

public boolean contains(Object obj)

Specified by:

contains in interface Collection<Object>

Specified by:

contains in interface Set<Object>

Overrides:

contains in class AbstractCollection<Object>

comparator

@Nullable
public Comparator<Object> comparator()

Specified by:

comparator in interface SortedSet<Object>

subSet

public SortedSet<Object> subSet(Object fromElement,
                       Object toElement)

Specified by:

subSet in interface SortedSet<Object>

headSet

public SortedSet<Object> headSet(Object toElement)

Specified by:

headSet in interface SortedSet<Object>

tailSet

public SortedSet<Object> tailSet(Object fromElement)

Specified by:

tailSet in interface SortedSet<Object>

first

public Object first()

Specified by:

first in interface SortedSet<Object>

last

public Object last()

Specified by:

last in interface SortedSet<Object>

getInstance

@Nonnull
public static <ELEMENTTYPE> SortedSet<ELEMENTTYPE> getInstance()