Package org.opentrafficsim.core.perception.collections

Class HistoricalHashMap<K,V>

java.lang.Object

org.opentrafficsim.core.perception.AbstractHistorical<K,AbstractHistoricalMap.EventMap<K,V,M>>

org.opentrafficsim.core.perception.collections.AbstractHistoricalMap<K,V,LinkedHashMap<K,V>>

org.opentrafficsim.core.perception.collections.HistoricalHashMap<K,V>

Type Parameters:

K - key type

V - value type

All Implemented Interfaces:

Map<K,V>, HistoricalMap<K,V>, HistoryManager.HistoricalElement

public class HistoricalHashMap<K,V>
extends AbstractHistoricalMap<K,V,LinkedHashMap<K,V>>

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

The set views returned by this class are unmodifiable.

Copyright (c) 2013-2019 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.AbstractHistoricalMap

AbstractHistoricalMap.EventMap<K,V,M extends Map<K,V>>

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

AbstractHistorical.EventValue<T>

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K extends Object,V extends Object>

Constructor Summary

Constructors

Constructor	Description
HistoricalHashMap(HistoryManager historyManager)	Constructor.
HistoricalHashMap(HistoryManager historyManager, Map<? extends K,? extends V> m)	Constructor.

Method Summary

Modifier and Type	Method	Description
LinkedHashMap<K,V>	get()	Returns the current map.
LinkedHashMap<K,V>	get(Time time)	Returns a past map.
String	toString()

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

clear, containsKey, containsValue, entrySet, fill, fill, get, getMap, isEmpty, keySet, put, putAll, remove, size, values

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.HistoricalMap

replaceAll

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, equals, forEach, getOrDefault, hashCode, merge, putIfAbsent, remove, replace, replace

Constructor Details

HistoricalHashMap

public HistoricalHashMap(HistoryManager historyManager)

Constructor.

Parameters:

historyManager - HistoryManager; history manager

HistoricalHashMap

public HistoricalHashMap(HistoryManager historyManager, Map<? extends K,? extends V> m)

Constructor.

Parameters:

historyManager - HistoryManager; history manager

m - Map<? extends K, ? extends V>; initial map

Method Details

get

public LinkedHashMap<K,V> get()

Returns the current map.

Returns:

Map; current map

get

public LinkedHashMap<K,V> get(Time time)

Returns a past map.

Parameters:

time - Time; time to obtain the map at

Returns:

Map; past map

toString

public String toString()

Overrides:

toString in class Object