org.onlab.util

Class DefaultHashMap<K,V>

java.lang.Object

java.util.AbstractMap<K,V>

java.util.HashMap<K,V>

org.onlab.util.DefaultHashMap<K,V>

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.util.Map<K,V>

public final class DefaultHashMap<K,V>
extends java.util.HashMap<K,V>

HashMap that returns a default value for unmapped keys.

See Also:

Serialized Form

Nested Class Summary

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

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

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

java.util.Map.Entry<K,V>

Field Summary

Fields

Modifier and Type	Field and Description
protected V	defaultValue Default value to return when no key binding exists.

Constructor Summary

Constructors

Constructor and Description
DefaultHashMap(V defaultValue) Constructs an empty map with the given default value.

Method Summary

Modifier and Type	Method and Description
V	get(java.lang.Object k)

Methods inherited from class java.util.HashMap

clear, clone, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, forEach, getOrDefault, isEmpty, keySet, merge, 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

Field Detail

defaultValue

protected final V defaultValue

Default value to return when no key binding exists.

Constructor Detail

DefaultHashMap

public DefaultHashMap(V defaultValue)

Constructs an empty map with the given default value.

Parameters:

defaultValue - the default value

Method Detail

get

public V get(java.lang.Object k)

Specified by:

get in interface java.util.Map<K,V>

Overrides:

get in class java.util.HashMap<K,V>