Package it.unimi.dsi.fastutil.longs
Class Long2IntMaps.EmptyMap
- java.lang.Object
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- it.unimi.dsi.fastutil.longs.AbstractLong2IntFunction
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- it.unimi.dsi.fastutil.longs.Long2IntFunctions.EmptyFunction
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- it.unimi.dsi.fastutil.longs.Long2IntMaps.EmptyMap
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- All Implemented Interfaces:
Function<java.lang.Long,java.lang.Integer>
,Long2IntFunction
,Long2IntMap
,java.io.Serializable
,java.lang.Cloneable
,java.util.function.Function<java.lang.Long,java.lang.Integer>
,java.util.function.LongToIntFunction
,java.util.Map<java.lang.Long,java.lang.Integer>
- Direct Known Subclasses:
Long2IntSortedMaps.EmptySortedMap
- Enclosing class:
- Long2IntMaps
public static class Long2IntMaps.EmptyMap extends Long2IntFunctions.EmptyFunction implements Long2IntMap, java.io.Serializable, java.lang.Cloneable
An immutable class representing an empty type-specific map.This class may be useful to implement your own in case you subclass a type-specific map.
- 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.longs.Long2IntMap
Long2IntMap.Entry, Long2IntMap.FastEntrySet
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description java.lang.Object
clone()
boolean
containsValue(int v)
Returnstrue
if this map maps one or more keys to the specified value.boolean
containsValue(java.lang.Object ov)
Deprecated.Please use the corresponding type-specific method instead.boolean
equals(java.lang.Object o)
void
forEach(java.util.function.BiConsumer<? super java.lang.Long,? super java.lang.Integer> consumer)
int
getOrDefault(long key, int defaultValue)
Returns the value associated by this function to the specified key, or give the specified value if not present.java.lang.Integer
getOrDefault(java.lang.Object key, java.lang.Integer defaultValue)
Deprecated.int
hashCode()
boolean
isEmpty()
LongSet
keySet()
ObjectSet<Long2IntMap.Entry>
long2IntEntrySet()
Returns a type-specific set view of the mappings contained in this map.void
putAll(java.util.Map<? extends java.lang.Long,? extends java.lang.Integer> m)
java.lang.String
toString()
IntCollection
values()
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Methods inherited from class it.unimi.dsi.fastutil.longs.Long2IntFunctions.EmptyFunction
clear, containsKey, defaultReturnValue, defaultReturnValue, get, size
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Methods inherited from interface it.unimi.dsi.fastutil.longs.Long2IntFunction
andThen, andThenByte, andThenChar, andThenDouble, andThenFloat, andThenInt, andThenLong, andThenObject, andThenReference, andThenShort, applyAsInt, compose, composeByte, composeChar, composeDouble, composeFloat, composeInt, composeLong, composeObject, composeReference, composeShort, get, put, remove
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Methods inherited from interface it.unimi.dsi.fastutil.longs.Long2IntMap
clear, compute, compute, computeIfAbsent, computeIfAbsent, computeIfAbsent, computeIfAbsentNullable, computeIfAbsentPartial, computeIfPresent, computeIfPresent, containsKey, containsKey, defaultReturnValue, defaultReturnValue, entrySet, get, merge, merge, mergeInt, mergeInt, put, putIfAbsent, putIfAbsent, remove, remove, remove, replace, replace, replace, replace, size
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Method Detail
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containsValue
public boolean containsValue(int v)
Description copied from interface:Long2IntMap
Returnstrue
if this map maps one or more keys to the specified value.- Specified by:
containsValue
in interfaceLong2IntMap
- See Also:
Map.containsValue(Object)
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getOrDefault
@Deprecated public java.lang.Integer getOrDefault(java.lang.Object key, java.lang.Integer defaultValue)
Deprecated.Description copied from interface:Long2IntMap
Returns the value associated by this function to the specified key, or give the specified value if not present.This default implementation just delegates to the corresponding
Map
method.- Specified by:
getOrDefault
in interfaceFunction<java.lang.Long,java.lang.Integer>
- Specified by:
getOrDefault
in interfaceLong2IntFunction
- Specified by:
getOrDefault
in interfaceLong2IntMap
- Specified by:
getOrDefault
in interfacejava.util.Map<java.lang.Long,java.lang.Integer>
- Parameters:
key
- the key.defaultValue
- the default value to return if not present.- Returns:
- the corresponding value, or
defaultValue
if no value was present for the given key. - See Also:
Map.getOrDefault(Object, Object)
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getOrDefault
public int getOrDefault(long key, int defaultValue)
Description copied from interface:Long2IntFunction
Returns the value associated by this function to the specified key, or give the specified value if not present.- Specified by:
getOrDefault
in interfaceLong2IntFunction
- Specified by:
getOrDefault
in interfaceLong2IntMap
- Overrides:
getOrDefault
in classLong2IntFunctions.EmptyFunction
- Parameters:
key
- the key.defaultValue
- the value to return if not present.- Returns:
- the corresponding value, or
defaultValue
if no value was present for the given key. - See Also:
Function.getOrDefault(Object, Object)
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containsValue
@Deprecated public boolean containsValue(java.lang.Object ov)
Deprecated.Please use the corresponding type-specific method instead.- Specified by:
containsValue
in interfaceLong2IntMap
- Specified by:
containsValue
in interfacejava.util.Map<java.lang.Long,java.lang.Integer>
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putAll
public void putAll(java.util.Map<? extends java.lang.Long,? extends java.lang.Integer> m)
- Specified by:
putAll
in interfacejava.util.Map<java.lang.Long,java.lang.Integer>
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long2IntEntrySet
public ObjectSet<Long2IntMap.Entry> long2IntEntrySet()
Description copied from interface:Long2IntMap
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:
long2IntEntrySet
in interfaceLong2IntMap
- Returns:
- a type-specific set view of the mappings contained in this map.
- See Also:
Map.entrySet()
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keySet
public LongSet keySet()
Description copied from interface:Long2IntMap
- Specified by:
keySet
in interfaceLong2IntMap
- Specified by:
keySet
in interfacejava.util.Map<java.lang.Long,java.lang.Integer>
- 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:Long2IntMap
- Specified by:
values
in interfaceLong2IntMap
- Specified by:
values
in interfacejava.util.Map<java.lang.Long,java.lang.Integer>
- Returns:
- a set view of the values contained in this map.
- See Also:
Map.values()
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forEach
public void forEach(java.util.function.BiConsumer<? super java.lang.Long,? super java.lang.Integer> consumer)
- Specified by:
forEach
in interfaceLong2IntMap
- Specified by:
forEach
in interfacejava.util.Map<java.lang.Long,java.lang.Integer>
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clone
public java.lang.Object clone()
- Overrides:
clone
in classLong2IntFunctions.EmptyFunction
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isEmpty
public boolean isEmpty()
- Specified by:
isEmpty
in interfacejava.util.Map<java.lang.Long,java.lang.Integer>
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hashCode
public int hashCode()
- Specified by:
hashCode
in interfacejava.util.Map<java.lang.Long,java.lang.Integer>
- Overrides:
hashCode
in classLong2IntFunctions.EmptyFunction
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equals
public boolean equals(java.lang.Object o)
- Specified by:
equals
in interfacejava.util.Map<java.lang.Long,java.lang.Integer>
- Overrides:
equals
in classLong2IntFunctions.EmptyFunction
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toString
public java.lang.String toString()
- Overrides:
toString
in classLong2IntFunctions.EmptyFunction
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