Package ch.tocco.nice2.toolbox.api.collection

Class DefaultValueHashMap<K,V>

java.lang.Object

java.util.AbstractMap<K,V>

java.util.HashMap<K,V>

ch.tocco.nice2.toolbox.api.collection.DefaultValueHashMap<K,V>

All Implemented Interfaces:

Serializable, Cloneable, Map<K,V>

public class DefaultValueHashMap<K,V>
extends HashMap<K,V>

A hash map that will populate itself with a value obtained from the given supplier. This is intended when the value type is a container kind of value which is populated in a loop. The first access to this map will create the container and associate it with the given key.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V>

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

Map.Entry<K,V>

Method Summary

Modifier and Type	Method	Description
V	get(Object key)
static <K, V> DefaultValueHashMap<K,V>	newMap(Supplier<V> supplier)

Methods inherited from class java.util.HashMap

clear, clone, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, forEach, getOrDefault, isEmpty, keySet, merge, newHashMap, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

Methods inherited from class java.util.AbstractMap

equals, hashCode, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

equals, hashCode

Method Details

newMap

public static <K,
V> DefaultValueHashMap<K,V> newMap(Supplier<V> supplier)

get

public V get(Object key)

Specified by:

get in interface Map<K,V>

Overrides:

get in class HashMap<K,V>