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java.lang.Objectit.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>
public static class Reference2ReferenceMaps.UnmodifiableMap<K,V>
An unmodifiable wrapper class for maps.
Nested Class Summary |
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Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.objects.Reference2ReferenceMap |
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Reference2ReferenceMap.Entry<K,V>, Reference2ReferenceMap.FastEntrySet<K,V> |
Field Summary | |
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static long |
serialVersionUID
|
Method Summary | |
---|---|
void |
clear()
Removes all associations from this function (optional operation). |
boolean |
containsKey(java.lang.Object k)
Returns true if this function contains a mapping for the specified key. |
boolean |
containsValue(java.lang.Object v)
|
V |
defaultReturnValue()
Gets the default return value. |
void |
defaultReturnValue(V defRetValue)
Sets the default return value. |
ObjectSet<java.util.Map.Entry<K,V>> |
entrySet()
Returns a set view of the mappings contained in this map. |
V |
get(java.lang.Object k)
Returns the value associated by this function to the specified key. |
boolean |
isEmpty()
|
ReferenceSet<K> |
keySet()
Returns a set view of the keys contained in this map. |
V |
put(K k,
V v)
Associates the specified value with the specified key in this function (optional operation). |
void |
putAll(java.util.Map<? extends K,? extends V> m)
|
ObjectSet<Reference2ReferenceMap.Entry<K,V>> |
reference2ReferenceEntrySet()
Returns a type-specific set view of the mappings contained in this map. |
V |
remove(java.lang.Object k)
Removes this key and the associated value from this function if it is present (optional operation). |
int |
size()
Returns the intended number of keys in this function, or -1 if no such number exists. |
java.lang.String |
toString()
|
ReferenceCollection<V> |
values()
Returns a set view of the values contained in this map. |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Methods inherited from interface java.util.Map |
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equals, hashCode |
Field Detail |
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public static final long serialVersionUID
Method Detail |
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public int size()
Function
Most function implementations will have some knowledge of the intended number of keys in their domain. In some cases, however, this might not be possible.
size
in interface Function<K,V>
size
in interface java.util.Map<K,V>
size
in class Reference2ReferenceFunctions.UnmodifiableFunction<K,V>
public boolean containsKey(java.lang.Object k)
Function
Note that for some kind of functions (e.g., hashes) this method will always return true.
containsKey
in interface Function<K,V>
containsKey
in interface java.util.Map<K,V>
containsKey
in class Reference2ReferenceFunctions.UnmodifiableFunction<K,V>
k
- the key.
key
.Map.containsKey(Object)
public boolean containsValue(java.lang.Object v)
containsValue
in interface java.util.Map<K,V>
public V defaultReturnValue()
Reference2ReferenceFunction
defaultReturnValue
in interface Reference2ReferenceFunction<K,V>
defaultReturnValue
in class Reference2ReferenceFunctions.UnmodifiableFunction<K,V>
public void defaultReturnValue(V defRetValue)
Reference2ReferenceFunction
get()
, put()
and remove()
to
denote that the map does not contain the specified key. It must be
0/false
/null
by default.
defaultReturnValue
in interface Reference2ReferenceFunction<K,V>
defaultReturnValue
in class Reference2ReferenceFunctions.UnmodifiableFunction<K,V>
defRetValue
- the new default return value.Reference2ReferenceFunction.defaultReturnValue()
public V put(K k, V v)
Function
put
in interface Function<K,V>
put
in interface java.util.Map<K,V>
put
in class Reference2ReferenceFunctions.UnmodifiableFunction<K,V>
k
- the key.v
- the value.
null
if no value was present for the given key.Map.put(Object,Object)
public void putAll(java.util.Map<? extends K,? extends V> m)
putAll
in interface java.util.Map<K,V>
public ObjectSet<Reference2ReferenceMap.Entry<K,V>> reference2ReferenceEntrySet()
Reference2ReferenceMap
This method is necessary because there is no inheritance along
type parameters: it is thus impossible to strengthen Reference2ReferenceMap.entrySet()
so that it returns an ObjectSet
of objects of type Reference2ReferenceMap.Entry
(the latter makes it possible to
access keys and values with type-specific methods).
reference2ReferenceEntrySet
in interface Reference2ReferenceMap<K,V>
Reference2ReferenceMap.entrySet()
public ReferenceSet<K> keySet()
Reference2ReferenceMap
Note that this specification strengthens the one given in Map.keySet()
.
keySet
in interface Reference2ReferenceMap<K,V>
keySet
in interface java.util.Map<K,V>
Map.keySet()
public ReferenceCollection<V> values()
Reference2ReferenceMap
Note that this specification strengthens the one given in Map.values()
.
values
in interface Reference2ReferenceMap<K,V>
values
in interface java.util.Map<K,V>
Map.values()
public void clear()
Function
clear
in interface Function<K,V>
clear
in interface java.util.Map<K,V>
clear
in class Reference2ReferenceFunctions.UnmodifiableFunction<K,V>
Map.clear()
public java.lang.String toString()
toString
in class Reference2ReferenceFunctions.UnmodifiableFunction<K,V>
public V remove(java.lang.Object k)
Function
remove
in interface Function<K,V>
remove
in interface java.util.Map<K,V>
remove
in class Reference2ReferenceFunctions.UnmodifiableFunction<K,V>
null
if no value was present for the given key.Map.remove(Object)
public V get(java.lang.Object k)
Function
get
in interface Function<K,V>
get
in interface java.util.Map<K,V>
get
in class Reference2ReferenceFunctions.UnmodifiableFunction<K,V>
k
- the key.
null
if no value was present for the given key.Map.get(Object)
public boolean isEmpty()
isEmpty
in interface java.util.Map<K,V>
public ObjectSet<java.util.Map.Entry<K,V>> entrySet()
Reference2ReferenceMap
Note that this specification strengthens the one given in Map.entrySet()
.
entrySet
in interface Reference2ReferenceMap<K,V>
entrySet
in interface java.util.Map<K,V>
Map.entrySet()
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