java.lang.Object
- it.unimi.dsi.fastutil.objects.AbstractReference2ReferenceFunction<K,V>
- - it.unimi.dsi.fastutil.objects.Reference2ReferenceFunctions.UnmodifiableFunction<K,V>
  - - it.unimi.dsi.fastutil.objects.Reference2ReferenceMaps.UnmodifiableMap<K,V>

All Implemented Interfaces:

Function<K,V>, Reference2ReferenceFunction<K,V>, Reference2ReferenceMap<K,V>, java.io.Serializable, java.util.function.Function<K,V>, java.util.Map<K,V>

Direct Known Subclasses:

Reference2ReferenceSortedMaps.UnmodifiableSortedMap

Enclosing class:

Reference2ReferenceMaps
```
public static class Reference2ReferenceMaps.UnmodifiableMap<K,V>
extends Reference2ReferenceFunctions.UnmodifiableFunction<K,V>
implements Reference2ReferenceMap<K,V>, java.io.Serializable
```
An unmodifiable wrapper class for maps.

See Also:

Serialized Form

Nested Class Summary
- Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.objects.Reference2ReferenceMap
  Reference2ReferenceMap.Entry<K,V>, Reference2ReferenceMap.FastEntrySet<K,V>

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`V`	`compute(K key, java.util.function.BiFunction<? super K,? super V,? extends V> remappingFunction)`
`V`	`computeIfPresent(K key, java.util.function.BiFunction<? super K,? super V,? extends V> remappingFunction)`
`boolean`	`containsValue(java.lang.Object v)`
`ObjectSet<java.util.Map.Entry<K,V>>`	`entrySet()`	Returns a set view of the mappings contained in this map.
`boolean`	`equals(java.lang.Object o)`
`void`	`forEach(java.util.function.BiConsumer<? super K,? super V> action)`
`V`	`getOrDefault(java.lang.Object key, V defaultValue)`
`int`	`hashCode()`
`boolean`	`isEmpty()`
`ReferenceSet<K>`	`keySet()`
`V`	`merge(K key, V value, java.util.function.BiFunction<? super V,? super V,? extends V> remappingFunction)`
`void`	`putAll(java.util.Map<? extends K,? extends V> m)`
`V`	`putIfAbsent(K key, V value)`
`ObjectSet<Reference2ReferenceMap.Entry<K,V>>`	`reference2ReferenceEntrySet()`	Returns a type-specific set view of the mappings contained in this map.
`boolean`	`remove(java.lang.Object key, java.lang.Object value)`
`V`	`replace(K key, V value)`
`boolean`	`replace(K key, V oldValue, V newValue)`
`void`	`replaceAll(java.util.function.BiFunction<? super K,? super V,? extends V> function)`
`ReferenceCollection<V>`	`values()`

Methods inherited from class it.unimi.dsi.fastutil.objects.Reference2ReferenceFunctions.UnmodifiableFunction
clear, containsKey, defaultReturnValue, defaultReturnValue, get, put, remove, size, toString

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface it.unimi.dsi.fastutil.Function
apply

Methods inherited from interface java.util.function.Function
andThen, compose

Methods inherited from interface java.util.Map
computeIfAbsent, get

Methods inherited from interface it.unimi.dsi.fastutil.objects.Reference2ReferenceFunction
get

Methods inherited from interface it.unimi.dsi.fastutil.objects.Reference2ReferenceMap
clear, containsKey, defaultReturnValue, defaultReturnValue, put, remove, size

- Method Detail
  - containsValue
```
public boolean containsValue(java.lang.Object v)
```
    Specified by:
    
    containsValue in interface java.util.Map<K,V>
  - putAll
```
public void putAll(java.util.Map<? extends K,? extends V> m)
```
    Specified by:
    
    putAll in interface java.util.Map<K,V>
  - reference2ReferenceEntrySet
```
public ObjectSet<Reference2ReferenceMap.Entry<K,V>> reference2ReferenceEntrySet()
```
    Description copied from interface: Reference2ReferenceMap
    
    Returns a type-specific set view of the mappings contained in this map.
    This method is necessary because there is no inheritance along type parameters: it is thus impossible to strengthen Map.entrySet() so that it returns an ObjectSet of type-specific entries (the latter makes it possible to access keys and values with type-specific methods).
    
    Specified by:
    
    reference2ReferenceEntrySet in interface Reference2ReferenceMap<K,V>
    
    Returns:
    
    a type-specific set view of the mappings contained in this map.
    
    See Also:
    
    Map.entrySet()
  - entrySet
```
public ObjectSet<java.util.Map.Entry<K,V>> entrySet()
```
    Returns a set view of the mappings contained in this map.
    Note that this specification strengthens the one given in Map.entrySet().
    
    Specified by:
    
    entrySet in interface java.util.Map<K,V>
    
    Specified by:
    
    entrySet in interface Reference2ReferenceMap<K,V>
    
    Returns:
    
    a set view of the mappings contained in this map.
    
    See Also:
    
    Map.entrySet()
  - keySet
```
public ReferenceSet<K> keySet()
```
    Description copied from interface: Reference2ReferenceMap
    
    Note that this specification strengthens the one given in Map.keySet().
    
    Specified by:
    
    keySet in interface java.util.Map<K,V>
    
    Specified by:
    
    keySet in interface Reference2ReferenceMap<K,V>
    
    Returns:
    
    a set view of the keys contained in this map.
    
    See Also:
    
    Map.keySet()
  - values
```
public ReferenceCollection<V> values()
```
    Description copied from interface: Reference2ReferenceMap
    
    Note that this specification strengthens the one given in Map.values().
    
    Specified by:
    
    values in interface java.util.Map<K,V>
    
    Specified by:
    
    values in interface Reference2ReferenceMap<K,V>
    
    Returns:
    
    a set view of the values contained in this map.
    
    See Also:
    
    Map.values()
  - isEmpty
```
public boolean isEmpty()
```
    Specified by:
    
    isEmpty in interface java.util.Map<K,V>
  - hashCode
```
public int hashCode()
```
    Specified by:
    
    hashCode in interface java.util.Map<K,V>
    
    Overrides:
    
    hashCode in class Reference2ReferenceFunctions.UnmodifiableFunction<K,V>
  - equals
```
public boolean equals(java.lang.Object o)
```
    Specified by:
    
    equals in interface java.util.Map<K,V>
    
    Overrides:
    
    equals in class Reference2ReferenceFunctions.UnmodifiableFunction<K,V>
  - getOrDefault
```
public V getOrDefault(java.lang.Object key,
                      V defaultValue)
```
    Specified by:
    
    getOrDefault in interface java.util.Map<K,V>
  - forEach
```
public void forEach(java.util.function.BiConsumer<? super K,? super V> action)
```
    Specified by:
    
    forEach in interface java.util.Map<K,V>
  - replaceAll
```
public void replaceAll(java.util.function.BiFunction<? super K,? super V,? extends V> function)
```
    Specified by:
    
    replaceAll in interface java.util.Map<K,V>
  - putIfAbsent
```
public V putIfAbsent(K key,
                     V value)
```
    Specified by:
    
    putIfAbsent in interface java.util.Map<K,V>
  - remove
```
public boolean remove(java.lang.Object key,
                      java.lang.Object value)
```
    Specified by:
    
    remove in interface java.util.Map<K,V>
  - replace
```
public V replace(K key,
                 V value)
```
    Specified by:
    
    replace in interface java.util.Map<K,V>
  - replace
```
public boolean replace(K key,
                       V oldValue,
                       V newValue)
```
    Specified by:
    
    replace in interface java.util.Map<K,V>
  - computeIfPresent
```
public V computeIfPresent(K key,
                          java.util.function.BiFunction<? super K,? super V,? extends V> remappingFunction)
```
    Specified by:
    
    computeIfPresent in interface java.util.Map<K,V>
  - compute
```
public V compute(K key,
                 java.util.function.BiFunction<? super K,? super V,? extends V> remappingFunction)
```
    Specified by:
    
    compute in interface java.util.Map<K,V>
  - merge
```
public V merge(K key,
               V value,
               java.util.function.BiFunction<? super V,? super V,? extends V> remappingFunction)
```
    Specified by:
    
    merge in interface java.util.Map<K,V>

Class Reference2ReferenceMaps.UnmodifiableMap<K,​V>

Nested Class Summary

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.objects.Reference2ReferenceMap

Method Summary

Methods inherited from class it.unimi.dsi.fastutil.objects.Reference2ReferenceFunctions.UnmodifiableFunction

Methods inherited from class java.lang.Object

Methods inherited from interface it.unimi.dsi.fastutil.Function

Methods inherited from interface java.util.function.Function

Methods inherited from interface java.util.Map

Methods inherited from interface it.unimi.dsi.fastutil.objects.Reference2ReferenceFunction

Methods inherited from interface it.unimi.dsi.fastutil.objects.Reference2ReferenceMap

Method Detail

containsValue

putAll

reference2ReferenceEntrySet

entrySet

keySet

values

isEmpty

hashCode

equals

getOrDefault

forEach

replaceAll

putIfAbsent

remove

replace

replace

computeIfPresent

compute

merge

Class Reference2ReferenceMaps.UnmodifiableMap<K,V>