V
- the value typepublic class LinkedCaseInsensitiveMap<V>
extends Object
implements Map<String,V>, Serializable, Cloneable
LinkedHashMap
variant that stores String keys in a case-insensitive
manner, for example for key-based access in a results table.
Preserves the original order as well as the original casing of keys, while allowing for contains, get and remove calls with any case of key.
Does not support null
keys.
Constructor and Description |
---|
LinkedCaseInsensitiveMap()
Create a new LinkedCaseInsensitiveMap that stores case-insensitive keys
according to the default Locale (by default in lower case).
|
LinkedCaseInsensitiveMap(int initialCapacity)
Create a new LinkedCaseInsensitiveMap that wraps a
LinkedHashMap
with the given initial capacity and stores case-insensitive keys
according to the default Locale (by default in lower case). |
LinkedCaseInsensitiveMap(int initialCapacity,
Locale locale)
Create a new LinkedCaseInsensitiveMap that wraps a
LinkedHashMap
with the given initial capacity and stores case-insensitive keys
according to the given Locale (by default in lower case). |
LinkedCaseInsensitiveMap(Locale locale)
Create a new LinkedCaseInsensitiveMap that stores case-insensitive keys
according to the given Locale (by default in lower case).
|
Modifier and Type | Method and Description |
---|---|
void |
clear() |
LinkedCaseInsensitiveMap<V> |
clone() |
V |
computeIfAbsent(String key,
Function<? super String,? extends V> mappingFunction) |
boolean |
containsKey(Object key) |
boolean |
containsValue(Object value) |
protected String |
convertKey(String key)
Convert the given key to a case-insensitive key.
|
Set<Map.Entry<String,V>> |
entrySet() |
boolean |
equals(Object other) |
V |
get(Object key) |
Locale |
getLocale()
Return the locale used by this
LinkedCaseInsensitiveMap . |
V |
getOrDefault(Object key,
V defaultValue) |
int |
hashCode() |
boolean |
isEmpty() |
Set<String> |
keySet() |
V |
put(String key,
V value) |
void |
putAll(Map<? extends String,? extends V> map) |
V |
putIfAbsent(String key,
V value) |
V |
remove(Object key) |
protected boolean |
removeEldestEntry(Map.Entry<String,V> eldest)
Determine whether this map should remove the given eldest entry.
|
int |
size() |
String |
toString() |
Collection<V> |
values() |
public LinkedCaseInsensitiveMap()
convertKey(String)
public LinkedCaseInsensitiveMap(@Nullable Locale locale)
locale
- the Locale to use for case-insensitive key conversionconvertKey(String)
public LinkedCaseInsensitiveMap(int initialCapacity)
LinkedHashMap
with the given initial capacity and stores case-insensitive keys
according to the default Locale (by default in lower case).initialCapacity
- the initial capacityconvertKey(String)
public LinkedCaseInsensitiveMap(int initialCapacity, @Nullable Locale locale)
LinkedHashMap
with the given initial capacity and stores case-insensitive keys
according to the given Locale (by default in lower case).initialCapacity
- the initial capacitylocale
- the Locale to use for case-insensitive key conversionconvertKey(String)
public int size()
size
in interface Map<String,V>
public boolean isEmpty()
isEmpty
in interface Map<String,V>
public boolean containsKey(Object key)
containsKey
in interface Map<String,V>
public boolean containsValue(Object value)
containsValue
in interface Map<String,V>
@Nullable public V getOrDefault(Object key, V defaultValue)
getOrDefault
in interface Map<String,V>
@Nullable public V put(String key, @Nullable V value)
put
in interface Map<String,V>
public void putAll(Map<? extends String,? extends V> map)
putAll
in interface Map<String,V>
@Nullable public V putIfAbsent(String key, @Nullable V value)
putIfAbsent
in interface Map<String,V>
@Nullable public V computeIfAbsent(String key, Function<? super String,? extends V> mappingFunction)
computeIfAbsent
in interface Map<String,V>
public void clear()
clear
in interface Map<String,V>
public Set<String> keySet()
keySet
in interface Map<String,V>
public Set<Map.Entry<String,V>> entrySet()
entrySet
in interface Map<String,V>
public LinkedCaseInsensitiveMap<V> clone()
clone
in class Object
public boolean equals(@Nullable Object other)
equals
in interface Map<String,V>
equals
in class Object
public int hashCode()
hashCode
in interface Map<String,V>
hashCode
in class Object
public String toString()
toString
in class Object
public Locale getLocale()
LinkedCaseInsensitiveMap
.
Used for case-insensitive key conversion.LinkedCaseInsensitiveMap(Locale)
,
convertKey(String)
protected String convertKey(String key)
The default implementation converts the key to lower-case according to this Map's Locale.
key
- the user-specified keyString.toLowerCase(Locale)
protected boolean removeEldestEntry(Map.Entry<String,V> eldest)
eldest
- the candidate entrytrue
for removing it, false
for keeping itLinkedHashMap.removeEldestEntry(java.util.Map.Entry<K, V>)
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