com.yahoo.bard.webservice.util

Class DefaultingDictionary<K,V>

java.lang.Object

java.util.AbstractMap<K,V>

java.util.HashMap<K,V>

java.util.LinkedHashMap<K,V>

com.yahoo.bard.webservice.util.DefaultingDictionary<K,V>

Type Parameters:

K - the type of keys maintained by this map

V - the type of mapped values

All Implemented Interfaces:

Serializable, Cloneable, Map<K,V>

public class DefaultingDictionary<K,V>
extends LinkedHashMap<K,V>

DefaultingDictionary is a Map that returns a default value if a given key is not present in the map, or returns the value associated 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>

Constructor Summary

Constructors

Constructor and Description
DefaultingDictionary(V defaultValue) Construct the defaultingDictionary using the defaultValue provided.
DefaultingDictionary(V defaultValue, Map<K,V> defaultingDictionaryMap) Construct DefaultingDictionary using the given defaultValue and entries from the given defaultingDictionaryMap.

Method Summary

Modifier and Type	Method and Description
V	get(Object key)
V	getDefaultValue() Return the defaultValue for this class.

Methods inherited from class java.util.LinkedHashMap

clear, containsValue, entrySet, forEach, getOrDefault, keySet, removeEldestEntry, replaceAll, values

Methods inherited from class java.util.HashMap

clone, compute, computeIfAbsent, computeIfPresent, containsKey, isEmpty, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, size

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

compute, computeIfAbsent, computeIfPresent, containsKey, equals, hashCode, isEmpty, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, size

Constructor Detail

DefaultingDictionary

public DefaultingDictionary(V defaultValue)

Construct the defaultingDictionary using the defaultValue provided.

Parameters:

defaultValue - The defaultValue to be returned if a key is not present in the map

DefaultingDictionary

public DefaultingDictionary(V defaultValue,
                            Map<K,V> defaultingDictionaryMap)

Construct DefaultingDictionary using the given defaultValue and entries from the given defaultingDictionaryMap.

Parameters:

defaultValue - The defaultValue to be returned if a key is not present in the map

defaultingDictionaryMap - A Map whose entries will be inserted into the DefaultingDictionary

Method Detail

getDefaultValue

public V getDefaultValue()

Return the defaultValue for this class.

Returns:

defaultValue for this class

get

public V get(Object key)

Specified by:

get in interface Map<K,V>

Overrides:

get in class LinkedHashMap<K,V>