Package it.unimi.dsi.fastutil.objects
Class Reference2ByteMaps.EmptyMap<K>
- java.lang.Object
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- it.unimi.dsi.fastutil.objects.AbstractReference2ByteFunction<K>
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- it.unimi.dsi.fastutil.objects.Reference2ByteFunctions.EmptyFunction<K>
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- it.unimi.dsi.fastutil.objects.Reference2ByteMaps.EmptyMap<K>
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- All Implemented Interfaces:
Function<K,Byte>
,Reference2ByteFunction<K>
,Reference2ByteMap<K>
,Serializable
,Cloneable
,Function<K,Byte>
,ToIntFunction<K>
,Map<K,Byte>
- Direct Known Subclasses:
Reference2ByteSortedMaps.EmptySortedMap
- Enclosing class:
- Reference2ByteMaps
public static class Reference2ByteMaps.EmptyMap<K> extends Reference2ByteFunctions.EmptyFunction<K> implements Reference2ByteMap<K>, Serializable, 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.objects.Reference2ByteMap
Reference2ByteMap.Entry<K>, Reference2ByteMap.FastEntrySet<K>
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description Object
clone()
boolean
containsValue(byte 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.boolean
equals(Object o)
int
hashCode()
boolean
isEmpty()
ReferenceSet<K>
keySet()
void
putAll(Map<? extends K,? extends Byte> m)
ObjectSet<Reference2ByteMap.Entry<K>>
reference2ByteEntrySet()
Returns a type-specific set view of the mappings contained in this map.String
toString()
ByteCollection
values()
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Methods inherited from class it.unimi.dsi.fastutil.objects.Reference2ByteFunctions.EmptyFunction
clear, containsKey, defaultReturnValue, defaultReturnValue, getByte, size
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Methods inherited from interface java.util.Map
compute, computeIfAbsent, computeIfPresent, forEach, replaceAll
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Methods inherited from interface it.unimi.dsi.fastutil.objects.Reference2ByteFunction
applyAsInt, getByte, put, removeByte
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Methods inherited from interface it.unimi.dsi.fastutil.objects.Reference2ByteMap
clear, computeByte, computeByteIfAbsent, computeByteIfAbsentPartial, computeByteIfPresent, containsKey, defaultReturnValue, defaultReturnValue, entrySet, get, getOrDefault, getOrDefault, merge, mergeByte, 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(byte v)
Description copied from interface:Reference2ByteMap
Returnstrue
if this map maps one or more keys to the specified value.- Specified by:
containsValue
in interfaceReference2ByteMap<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,Byte>
- Specified by:
containsValue
in interfaceReference2ByteMap<K>
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reference2ByteEntrySet
public ObjectSet<Reference2ByteMap.Entry<K>> reference2ByteEntrySet()
Description copied from interface:Reference2ByteMap
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:
reference2ByteEntrySet
in interfaceReference2ByteMap<K>
- Returns:
- a type-specific 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:Reference2ByteMap
Note that this specification strengthens the one given in
Map.keySet()
.- Specified by:
keySet
in interfaceMap<K,Byte>
- Specified by:
keySet
in interfaceReference2ByteMap<K>
- Returns:
- a set view of the keys contained in this map.
- See Also:
Map.keySet()
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values
public ByteCollection values()
Description copied from interface:Reference2ByteMap
Note that this specification strengthens the one given in
Map.values()
.- Specified by:
values
in interfaceMap<K,Byte>
- Specified by:
values
in interfaceReference2ByteMap<K>
- Returns:
- a set view of the values contained in this map.
- See Also:
Map.values()
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clone
public Object clone()
- Overrides:
clone
in classReference2ByteFunctions.EmptyFunction<K>
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hashCode
public int hashCode()
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equals
public boolean equals(Object o)
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toString
public String toString()
- Overrides:
toString
in classReference2ByteFunctions.EmptyFunction<K>
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