Class Reference2IntMaps.UnmodifiableMap<K>
- java.lang.Object
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- it.unimi.dsi.fastutil.objects.AbstractReference2IntFunction<K>
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- it.unimi.dsi.fastutil.objects.Reference2IntFunctions.UnmodifiableFunction<K>
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- it.unimi.dsi.fastutil.objects.Reference2IntMaps.UnmodifiableMap<K>
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- All Implemented Interfaces:
Function<K,Integer>
,Reference2IntFunction<K>
,Reference2IntMap<K>
,Serializable
,Function<K,Integer>
,ToIntFunction<K>
,Map<K,Integer>
- Direct Known Subclasses:
Reference2IntSortedMaps.UnmodifiableSortedMap
- Enclosing class:
- Reference2IntMaps
public static class Reference2IntMaps.UnmodifiableMap<K> extends Reference2IntFunctions.UnmodifiableFunction<K> implements Reference2IntMap<K>, Serializable
An unmodifiable wrapper class for maps.- See Also:
- Serialized Form
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Nested Class Summary
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Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.objects.Reference2IntMap
Reference2IntMap.Entry<K>, Reference2IntMap.FastEntrySet<K>
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description Integer
compute(K key, BiFunction<? super K,? super Integer,? extends Integer> remappingFunction)
Integer
computeIfAbsent(K key, Function<? super K,? extends Integer> mappingFunction)
Integer
computeIfPresent(K key, BiFunction<? super K,? super Integer,? extends Integer> remappingFunction)
int
computeInt(K key, BiFunction<? super K,? super Integer,? extends Integer> remappingFunction)
Attempts to compute a mapping for the specified key and its current mapped value (ornull
if there is no current mapping).int
computeIntIfAbsent(K key, ToIntFunction<? super K> mappingFunction)
If the specified key is not already associated with a value, attempts to compute its value using the given mapping function and enters it into this map.int
computeIntIfAbsentPartial(K key, Reference2IntFunction<? super K> mappingFunction)
If the specified key is not already associated with a value, attempts to compute its value using the given mapping function and enters it into this map, unless the key is not present in the given mapping function.int
computeIntIfPresent(K key, BiFunction<? super K,? super Integer,? extends Integer> remappingFunction)
If the value for the specified key is present, attempts to compute a new mapping given the key and its current mapped value.boolean
containsValue(int v)
Returnstrue
if this map maps one or more keys to the specified value.boolean
containsValue(Object ov)
Deprecated.Please use the corresponding type-specific method instead.ObjectSet<Map.Entry<K,Integer>>
entrySet()
Deprecated.Please use the corresponding type-specific method instead.boolean
equals(Object o)
void
forEach(BiConsumer<? super K,? super Integer> action)
int
getOrDefault(Object key, int defaultValue)
Returns the value to which the specified key is mapped, or thedefaultValue
if this map contains no mapping for the key.Integer
getOrDefault(Object key, Integer defaultValue)
Deprecated.Please use the corresponding type-specific method instead.int
hashCode()
boolean
isEmpty()
ReferenceSet<K>
keySet()
Integer
merge(K key, Integer value, BiFunction<? super Integer,? super Integer,? extends Integer> remappingFunction)
Deprecated.Please use the corresponding type-specific method instead.int
mergeInt(K key, int value, BiFunction<? super Integer,? super Integer,? extends Integer> remappingFunction)
If the specified key is not already associated with a value, associates it with the givenvalue
.void
putAll(Map<? extends K,? extends Integer> m)
int
putIfAbsent(K key, int value)
If the specified key is not already associated with a value, associates it with the given value and returns the default return value, else returns the current value.Integer
putIfAbsent(K key, Integer value)
Deprecated.Please use the corresponding type-specific method instead.ObjectSet<Reference2IntMap.Entry<K>>
reference2IntEntrySet()
Returns a type-specific set view of the mappings contained in this map.boolean
remove(Object key, int value)
Removes the entry for the specified key only if it is currently mapped to the specified value.boolean
remove(Object key, Object value)
Deprecated.Please use the corresponding type-specific method instead.int
replace(K key, int value)
Replaces the entry for the specified key only if it is currently mapped to some value.boolean
replace(K key, int oldValue, int newValue)
Replaces the entry for the specified key only if currently mapped to the specified value.Integer
replace(K key, Integer value)
Deprecated.Please use the corresponding type-specific method instead.boolean
replace(K key, Integer oldValue, Integer newValue)
Deprecated.Please use the corresponding type-specific method instead.void
replaceAll(BiFunction<? super K,? super Integer,? extends Integer> function)
IntCollection
values()
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Methods inherited from class it.unimi.dsi.fastutil.objects.Reference2IntFunctions.UnmodifiableFunction
clear, containsKey, defaultReturnValue, defaultReturnValue, get, getInt, put, put, remove, removeInt, size, toString
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Methods inherited from interface it.unimi.dsi.fastutil.objects.Reference2IntFunction
applyAsInt, getInt, put, removeInt
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Methods inherited from interface it.unimi.dsi.fastutil.objects.Reference2IntMap
clear, containsKey, defaultReturnValue, defaultReturnValue, get, put, remove, size
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Method Detail
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containsValue
public boolean containsValue(int v)
Description copied from interface:Reference2IntMap
Returnstrue
if this map maps one or more keys to the specified value.- Specified by:
containsValue
in interfaceReference2IntMap<K>
- See Also:
Map.containsValue(Object)
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containsValue
@Deprecated public boolean containsValue(Object ov)
Deprecated.Please use the corresponding type-specific method instead.- Specified by:
containsValue
in interfaceMap<K,Integer>
- Specified by:
containsValue
in interfaceReference2IntMap<K>
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reference2IntEntrySet
public ObjectSet<Reference2IntMap.Entry<K>> reference2IntEntrySet()
Description copied from interface:Reference2IntMap
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 anObjectSet
of type-specific entries (the latter makes it possible to access keys and values with type-specific methods).- Specified by:
reference2IntEntrySet
in interfaceReference2IntMap<K>
- Returns:
- a type-specific set view of the mappings contained in this map.
- See Also:
Map.entrySet()
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entrySet
@Deprecated public ObjectSet<Map.Entry<K,Integer>> entrySet()
Deprecated.Please use the corresponding type-specific method instead.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 interfaceMap<K,Integer>
- Specified by:
entrySet
in interfaceReference2IntMap<K>
- Returns:
- a set view of the mappings contained in this map.
- See Also:
Map.entrySet()
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keySet
public ReferenceSet<K> keySet()
Description copied from interface:Reference2IntMap
Note that this specification strengthens the one given in
Map.keySet()
.- Specified by:
keySet
in interfaceMap<K,Integer>
- Specified by:
keySet
in interfaceReference2IntMap<K>
- Returns:
- a set view of the keys contained in this map.
- See Also:
Map.keySet()
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values
public IntCollection values()
Description copied from interface:Reference2IntMap
Note that this specification strengthens the one given in
Map.values()
.- Specified by:
values
in interfaceMap<K,Integer>
- Specified by:
values
in interfaceReference2IntMap<K>
- Returns:
- a set view of the values contained in this map.
- See Also:
Map.values()
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hashCode
public int hashCode()
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equals
public boolean equals(Object o)
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getOrDefault
public int getOrDefault(Object key, int defaultValue)
Description copied from interface:Reference2IntMap
Returns the value to which the specified key is mapped, or thedefaultValue
if this map contains no mapping for the key.- Specified by:
getOrDefault
in interfaceReference2IntMap<K>
- Parameters:
key
- the key.defaultValue
- the default mapping of the key.- Returns:
- the value to which the specified key is mapped, or the
defaultValue
if this map contains no mapping for the key. - See Also:
Map.getOrDefault(Object, Object)
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forEach
public void forEach(BiConsumer<? super K,? super Integer> action)
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replaceAll
public void replaceAll(BiFunction<? super K,? super Integer,? extends Integer> function)
- Specified by:
replaceAll
in interfaceMap<K,Integer>
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putIfAbsent
public int putIfAbsent(K key, int value)
Description copied from interface:Reference2IntMap
If the specified key is not already associated with a value, associates it with the given value and returns the default return value, else returns the current value.- Specified by:
putIfAbsent
in interfaceReference2IntMap<K>
- Parameters:
key
- key with which the specified value is to be associated.value
- value to be associated with the specified key.- Returns:
- the previous value associated with the specified key, or the default return value if there was no mapping for the key.
- See Also:
Map.putIfAbsent(Object, Object)
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remove
public boolean remove(Object key, int value)
Description copied from interface:Reference2IntMap
Removes the entry for the specified key only if it is currently mapped to the specified value.- Specified by:
remove
in interfaceReference2IntMap<K>
- Parameters:
key
- key with which the specified value is associated.value
- value expected to be associated with the specified key.- Returns:
true
if the value was removed.- See Also:
Map.remove(Object, Object)
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replace
public int replace(K key, int value)
Description copied from interface:Reference2IntMap
Replaces the entry for the specified key only if it is currently mapped to some value.- Specified by:
replace
in interfaceReference2IntMap<K>
- Parameters:
key
- key with which the specified value is associated.value
- value to be associated with the specified key.- Returns:
- the previous value associated with the specified key, or the default return value if there was no mapping for the key.
- See Also:
Map.replace(Object, Object)
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replace
public boolean replace(K key, int oldValue, int newValue)
Description copied from interface:Reference2IntMap
Replaces the entry for the specified key only if currently mapped to the specified value.- Specified by:
replace
in interfaceReference2IntMap<K>
- Parameters:
key
- key with which the specified value is associated.oldValue
- value expected to be associated with the specified key.newValue
- value to be associated with the specified key.- Returns:
true
if the value was replaced.- See Also:
Map.replace(Object, Object, Object)
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computeIntIfAbsent
public int computeIntIfAbsent(K key, ToIntFunction<? super K> mappingFunction)
Description copied from interface:Reference2IntMap
If the specified key is not already associated with a value, attempts to compute its value using the given mapping function and enters it into this map.Note that contrarily to the default computeIfAbsent(), it is not possible to not add a value for a given key, since the
mappingFunction
cannot returnnull
. If such a behavior is needed, please use the corresponding nullable version.- Specified by:
computeIntIfAbsent
in interfaceReference2IntMap<K>
- Parameters:
key
- key with which the specified value is to be associated.mappingFunction
- the function to compute a value.- Returns:
- the current (existing or computed) value associated with the specified key.
- See Also:
Map.computeIfAbsent(Object, java.util.function.Function)
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computeIntIfAbsentPartial
public int computeIntIfAbsentPartial(K key, Reference2IntFunction<? super K> mappingFunction)
Description copied from interface:Reference2IntMap
If the specified key is not already associated with a value, attempts to compute its value using the given mapping function and enters it into this map, unless the key is not present in the given mapping function.This version of computeIfAbsent() uses a type-specific version of
fastutil
'sFunction
. SinceFunction
has acontainsKey()
method, it is possible to avoid adding a key by havingcontainsKey()
returnfalse
for that key.- Specified by:
computeIntIfAbsentPartial
in interfaceReference2IntMap<K>
- Parameters:
key
- key with which the specified value is to be associated.mappingFunction
- the function to compute a value.- Returns:
- the current (existing or computed) value associated with the specified key.
- See Also:
Map.computeIfAbsent(Object, java.util.function.Function)
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computeIntIfPresent
public int computeIntIfPresent(K key, BiFunction<? super K,? super Integer,? extends Integer> remappingFunction)
Description copied from interface:Reference2IntMap
If the value for the specified key is present, attempts to compute a new mapping given the key and its current mapped value.- Specified by:
computeIntIfPresent
in interfaceReference2IntMap<K>
- Parameters:
key
- key with which the specified value is to be associated.remappingFunction
- the function to compute a value.- Returns:
- the new value associated with the specified key, or the default return value if none.
- See Also:
Map.computeIfPresent(Object, java.util.function.BiFunction)
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computeInt
public int computeInt(K key, BiFunction<? super K,? super Integer,? extends Integer> remappingFunction)
Description copied from interface:Reference2IntMap
Attempts to compute a mapping for the specified key and its current mapped value (ornull
if there is no current mapping).If the function returns
null
, the mapping is removed (or remains absent if initially absent). If the function itself throws an (unchecked) exception, the exception is rethrown, and the current mapping is left unchanged.- Specified by:
computeInt
in interfaceReference2IntMap<K>
- Parameters:
key
- key with which the specified value is to be associated.remappingFunction
- the function to compute a value.- Returns:
- the new value associated with the specified key, or the default return value if none.
- See Also:
Map.compute(Object, java.util.function.BiFunction)
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mergeInt
public int mergeInt(K key, int value, BiFunction<? super Integer,? super Integer,? extends Integer> remappingFunction)
Description copied from interface:Reference2IntMap
If the specified key is not already associated with a value, associates it with the givenvalue
. Otherwise, replaces the associated value with the results of the given remapping function, or removes if the result isnull
.- Specified by:
mergeInt
in interfaceReference2IntMap<K>
- Parameters:
key
- key with which the resulting value is to be associated.value
- the value to be merged with the existing value associated with the key or, if no existing value is associated with the key, to be associated with the key.remappingFunction
- the function to recompute a value if present.- Returns:
- the new value associated with the specified key, or the default return value if no value is associated with the key.
- See Also:
Map.merge(Object, Object, java.util.function.BiFunction)
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getOrDefault
@Deprecated public Integer getOrDefault(Object key, Integer defaultValue)
Deprecated.Please use the corresponding type-specific method instead.This default implementation just delegates to the corresponding
Map
method.- Specified by:
getOrDefault
in interfaceMap<K,Integer>
- Specified by:
getOrDefault
in interfaceReference2IntMap<K>
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remove
@Deprecated public boolean remove(Object key, Object value)
Deprecated.Please use the corresponding type-specific method instead.This default implementation just delegates to the corresponding
Map
method.
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replace
@Deprecated public Integer replace(K key, Integer value)
Deprecated.Please use the corresponding type-specific method instead.This default implementation just delegates to the corresponding
Map
method.
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replace
@Deprecated public boolean replace(K key, Integer oldValue, Integer newValue)
Deprecated.Please use the corresponding type-specific method instead.This default implementation just delegates to the corresponding
Map
method.
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putIfAbsent
@Deprecated public Integer putIfAbsent(K key, Integer value)
Deprecated.Please use the corresponding type-specific method instead.This default implementation just delegates to the corresponding
Map
method.- Specified by:
putIfAbsent
in interfaceMap<K,Integer>
- Specified by:
putIfAbsent
in interfaceReference2IntMap<K>
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computeIfAbsent
public Integer computeIfAbsent(K key, Function<? super K,? extends Integer> mappingFunction)
- Specified by:
computeIfAbsent
in interfaceMap<K,Integer>
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computeIfPresent
public Integer computeIfPresent(K key, BiFunction<? super K,? super Integer,? extends Integer> remappingFunction)
- Specified by:
computeIfPresent
in interfaceMap<K,Integer>
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compute
public Integer compute(K key, BiFunction<? super K,? super Integer,? extends Integer> remappingFunction)
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merge
@Deprecated public Integer merge(K key, Integer value, BiFunction<? super Integer,? super Integer,? extends Integer> remappingFunction)
Deprecated.Please use the corresponding type-specific method instead.This default implementation just delegates to the corresponding
Map
method.
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