com.clarkparsia.pellet.utils

Class DeltaSet<T>

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractSet<T>

com.clarkparsia.pellet.utils.DeltaSet<T>

All Implemented Interfaces:

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

public class DeltaSet<T>
extends AbstractSet<T>

A mutable Set implementation that is view over a set that is not modified. The additions and removals to the base set are tracked internally and all the set functions operate as if the changes have been applied to base set. Updating the base set outside this class will have undefined consequences.

Author:

Evren Sirin

Constructor Summary

Constructors

Constructor and Description
DeltaSet(Set<T> base) Creates a DeltaSet with the given base set.

Method Summary

Modifier and Type	Method and Description
boolean	add(T e)
void	clear()
boolean	contains(Object o)
Set<T>	getAdditions() Returns the additions that have been applied to this set.
Set<T>	getRemovals() Returns the removals that have been applied to this set.
Iterator<T>	iterator()
boolean	remove(Object e)
void	reset() Clears all the changes tracked resetting the contents of this set to the base set.
int	size()

Methods inherited from class java.util.AbstractSet

equals, hashCode, removeAll

Methods inherited from class java.util.AbstractCollection

addAll, containsAll, isEmpty, 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

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

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream

Methods inherited from interface java.lang.Iterable

forEach

Constructor Detail

DeltaSet

public DeltaSet(Set<T> base)

Creates a DeltaSet with the given base set.

Method Detail

reset

public void reset()

Clears all the changes tracked resetting the contents of this set to the base set.

getAdditions

public Set<T> getAdditions()

Returns the additions that have been applied to this set. Only the additions that are not in the base set are tracked.

getRemovals

public Set<T> getRemovals()

Returns the removals that have been applied to this set. Only the removals that are in the base set are tracked.

clear

public void clear()

Specified by:

clear in interface Collection<T>

Specified by:

clear in interface Set<T>

Overrides:

clear 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>

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 e)

Specified by:

remove in interface Collection<T>

Specified by:

remove in interface Set<T>

Overrides:

remove in class AbstractCollection<T>

iterator

public Iterator<T> iterator()

Specified by:

iterator in interface Iterable<T>

Specified by:

iterator in interface Collection<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>