org.opentrafficsim.core.perception.collections

Class HistoricalHashSet<E>

java.lang.Object

org.opentrafficsim.core.perception.AbstractHistorical<E,AbstractHistoricalCollection.EventCollection<E,C>>

org.opentrafficsim.core.perception.collections.AbstractHistoricalCollection<E,HashSet<E>>

org.opentrafficsim.core.perception.collections.HistoricalHashSet<E>

Type Parameters:

E - element type

All Implemented Interfaces:

Iterable<E>, Collection<E>, Set<E>, HistoricalCollection<E>, HistoricalSet<E>, HistoryManager.HistoricalElement

public class HistoricalHashSet<E>
extends AbstractHistoricalCollection<E,HashSet<E>>
implements HistoricalSet<E>

HashSet-valued historical state. The current hash set is always maintained, and past states of the hash set are obtained by applying the events between now and the requested time in reverse.

The Iterator returned by this class does not support the remove() method. Any returned subset is unmodifiable.

Copyright (c) 2013-2018 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved.
BSD-style license. See OpenTrafficSim License.

Version:

$Revision$, $LastChangedDate$, by $Author$, initial version 3 feb. 2018

Author:

Alexander Verbraeck, Peter Knoppers, Wouter Schakel

Nested Class Summary

Nested classes/interfaces inherited from class org.opentrafficsim.core.perception.collections.AbstractHistoricalCollection

AbstractHistoricalCollection.AddEvent<E,C extends Collection<E>>, AbstractHistoricalCollection.EventCollection<E,C extends Collection<E>>, AbstractHistoricalCollection.RemoveEvent<E,C extends Collection<E>>

Nested classes/interfaces inherited from class org.opentrafficsim.core.perception.AbstractHistorical

AbstractHistorical.EventValue<T>

Constructor Summary

Constructors

Constructor and Description
HistoricalHashSet(HistoryManager historyManager) Constructor.
HistoricalHashSet(HistoryManager historyManager, Collection<? extends E> c) Constructor.

Method Summary

Modifier and Type	Method and Description
HashSet<E>	get() Returns the current set.
HashSet<E>	get(Time time) Returns a past set.
String	toString()

Methods inherited from class org.opentrafficsim.core.perception.collections.AbstractHistoricalCollection

add, addAll, clear, contains, containsAll, fill, fill, getCollection, isEmpty, iterator, remove, removeAll, retainAll, size, toArray, toArray

Methods inherited from class org.opentrafficsim.core.perception.AbstractHistorical

addEvent, cleanUpHistory, getEvent, getEvents, getLastEvent, isLastState, now, removeEvent

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.opentrafficsim.core.perception.collections.HistoricalCollection

removeIf

Methods inherited from interface java.util.Set

add, addAll, clear, contains, containsAll, equals, hashCode, isEmpty, iterator, remove, removeAll, retainAll, size, spliterator, toArray, toArray

Methods inherited from interface java.util.Collection

parallelStream, stream

Methods inherited from interface java.lang.Iterable

forEach

Constructor Detail

HistoricalHashSet

public HistoricalHashSet(HistoryManager historyManager)

Constructor.

Parameters:

historyManager - HistoryManager; history manager

HistoricalHashSet

public HistoricalHashSet(HistoryManager historyManager,
                         Collection<? extends E> c)

Constructor.

Parameters:

historyManager - HistoryManager; history manager

c - Collection; initial collection

Method Detail

get

public HashSet<E> get()

Returns the current set.

Specified by:

get in interface HistoricalCollection<E>

Specified by:

get in interface HistoricalSet<E>

Returns:

Set; current set

get

public HashSet<E> get(Time time)

Returns a past set.

Specified by:

get in interface HistoricalCollection<E>

Specified by:

get in interface HistoricalSet<E>

Parameters:

time - Time; time to obtain the set at

Returns:

Set; past set

toString

public String toString()

Overrides:

toString in class Object