Class SetFromCollectionUnsafe<T>

java.lang.Object

java.util.AbstractCollection<T>

java.util.AbstractSet<T>

org.aksw.commons.collections.sets.SetFromCollectionUnsafe<T>

All Implemented Interfaces:

Iterable<T>, Collection<T>, Set<T>

public class SetFromCollectionUnsafe<T>
extends AbstractSet<T>

In contrast to SetFromCollection, the unsafe version does not handle duplicates in the backend collection. Only use the unsafe version if the uniqueness of items in the backend is ensured. This class simply delegates calls to iterator() and size() to the backend.

Author:

raven

Field Summary

Fields

Modifier and Type	Field	Description
protected Collection<T>	backend

Constructor Summary

Constructors

Constructor	Description
SetFromCollectionUnsafe(Collection<T> backend)

Method Summary

Modifier and Type	Method	Description
boolean	add(T e)
void	clear()
boolean	contains(Object o)
Iterator<T>	iterator()
boolean	remove(Object o)	This method removes ALL occurrences of a given item.
int	size()
static <T> Set<T>	wrapIfNeeded(Collection<T> collection)

Methods inherited from class AbstractSet

equals, hashCode, removeAll

Methods inherited from class AbstractCollection

addAll, containsAll, isEmpty, retainAll, toArray, toArray, toString

Methods inherited from class Object

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

Methods inherited from interface Collection

parallelStream, removeIf, stream, toArray

Methods inherited from interface Iterable

forEach

Methods inherited from interface Set

addAll, containsAll, isEmpty, retainAll, spliterator, toArray, toArray

Field Details

backend

protected Collection<T> backend

Constructor Details

SetFromCollectionUnsafe

public SetFromCollectionUnsafe(Collection<T> backend)

Method Details

add

public boolean add(T e)

Specified by:

add in interface Collection<T>

Specified by:

add in interface Set<T>

Overrides:

add in class AbstractCollection<T>

remove

public boolean remove(Object o)

This method removes ALL occurrences of a given item. The backend MUST adhere to the contract that remove() returns false once there is no more change - otherwise calling this method will cause an endless loop.

Specified by:

remove in interface Collection<T>

Specified by:

remove in interface Set<T>

Overrides:

remove in class AbstractCollection<T>

contains

public boolean contains(Object o)

Specified by:

contains in interface Collection<T>

Specified by:

contains in interface Set<T>

Overrides:

contains in class AbstractCollection<T>

clear

public void clear()

Specified by:

clear in interface Collection<T>

Specified by:

clear in interface Set<T>

Overrides:

clear in class AbstractCollection<T>

iterator

public Iterator<T> iterator()

Specified by:

iterator in interface Collection<T>

Specified by:

iterator in interface Iterable<T>

Specified by:

iterator in interface Set<T>

Specified by:

iterator in class AbstractCollection<T>

size

public int size()

Specified by:

size in interface Collection<T>

Specified by:

size in interface Set<T>

Specified by:

size in class AbstractCollection<T>

wrapIfNeeded

public static <T> Set<T> wrapIfNeeded(Collection<T> collection)