Object2ObjectMaps.SynchronizedMap (fastutil 7.0.13)

java.lang.Object
- it.unimi.dsi.fastutil.objects.AbstractObject2ObjectFunction<K,V>
- - it.unimi.dsi.fastutil.objects.Object2ObjectFunctions.SynchronizedFunction<K,V>
  - - it.unimi.dsi.fastutil.objects.Object2ObjectMaps.SynchronizedMap<K,V>

All Implemented Interfaces:

Function<K,V>, Object2ObjectFunction<K,V>, Object2ObjectMap<K,V>, java.io.Serializable, java.util.Map<K,V>

Direct Known Subclasses:

Object2ObjectSortedMaps.SynchronizedSortedMap

Enclosing class:

Object2ObjectMaps
```
public static class Object2ObjectMaps.SynchronizedMap<K,V>
extends Object2ObjectFunctions.SynchronizedFunction<K,V>
implements Object2ObjectMap<K,V>, java.io.Serializable
```
A synchronized wrapper class for maps.

See Also:

Serialized Form

Nested Class Summary
- Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.objects.Object2ObjectMap
  Object2ObjectMap.Entry<K,V>, Object2ObjectMap.FastEntrySet<K,V>

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`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.
`boolean`	`equals(java.lang.Object o)`
`V`	`get(java.lang.Object k)` Returns the value associated by this function to the specified key.
`int`	`hashCode()`
`boolean`	`isEmpty()`
`ObjectSet<K>`	`keySet()` Returns a set view of the keys contained in this map.
`ObjectSet<Object2ObjectMap.Entry<K,V>>`	`object2ObjectEntrySet()` Returns a type-specific set view of the mappings 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)`
`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()`
`ObjectCollection<V>`	`values()` Returns a set view of the values contained in this map.

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

Methods inherited from interface java.util.Map
compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

- Method Detail
  - size
```
public int size()
```
    Description copied from interface: Function
    
    Returns the intended number of keys in this function, or -1 if no such number exists.
    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.
    
    Specified by:
    
    size in interface Function<K,V>
    
    Specified by:
    
    size in interface java.util.Map<K,V>
    
    Overrides:
    
    size in class Object2ObjectFunctions.SynchronizedFunction<K,V>
    
    Returns:
    
    the intended number of keys in this function, or -1 if that number is not available.
  - containsKey
```
public boolean containsKey(java.lang.Object k)
```
    Description copied from interface: Function
    
    Returns true if this function contains a mapping for the specified key.
    Note that for some kind of functions (e.g., hashes) this method will always return true.
    
    Specified by:
    
    containsKey in interface Function<K,V>
    
    Specified by:
    
    containsKey in interface java.util.Map<K,V>
    
    Overrides:
    
    containsKey in class Object2ObjectFunctions.SynchronizedFunction<K,V>
    
    Parameters:
    
    k - the key.
    
    Returns:
    
    true if this function associates a value to key.
    
    See Also:
    
    Map.containsKey(Object)
  - containsValue
```
public boolean containsValue(java.lang.Object v)
```
    Specified by:
    
    containsValue in interface java.util.Map<K,V>
  - defaultReturnValue
```
public V defaultReturnValue()
```
    Description copied from interface: Object2ObjectFunction
    
    Gets the default return value.
    
    Specified by:
    
    defaultReturnValue in interface Object2ObjectFunction<K,V>
    
    Overrides:
    
    defaultReturnValue in class Object2ObjectFunctions.SynchronizedFunction<K,V>
    
    Returns:
    
    the current default return value.
  - defaultReturnValue
```
public void defaultReturnValue(V defRetValue)
```
    Description copied from interface: Object2ObjectFunction
    
    Sets the default return value. This value must be returned by type-specific versions of get(), put() and remove() to denote that the map does not contain the specified key. It must be 0/false/null by default.
    
    Specified by:
    
    defaultReturnValue in interface Object2ObjectFunction<K,V>
    
    Overrides:
    
    defaultReturnValue in class Object2ObjectFunctions.SynchronizedFunction<K,V>
    
    Parameters:
    
    defRetValue - the new default return value.
    
    See Also:
    
    Object2ObjectFunction.defaultReturnValue()
  - put
```
public V put(K k,
             V v)
```
    Description copied from interface: Function
    
    Associates the specified value with the specified key in this function (optional operation).
    
    Specified by:
    
    put in interface Function<K,V>
    
    Specified by:
    
    put in interface java.util.Map<K,V>
    
    Overrides:
    
    put in class Object2ObjectFunctions.SynchronizedFunction<K,V>
    
    Parameters:
    
    k - the key.
    
    v - the value.
    
    Returns:
    
    the old value, or null if no value was present for the given key.
    
    See Also:
    
    Map.put(Object,Object)
  - putAll
```
public void putAll(java.util.Map<? extends K,? extends V> m)
```
    Specified by:
    
    putAll in interface java.util.Map<K,V>
  - object2ObjectEntrySet
```
public ObjectSet<Object2ObjectMap.Entry<K,V>> object2ObjectEntrySet()
```
    Description copied from interface: Object2ObjectMap
    
    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 Object2ObjectMap.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:
    
    object2ObjectEntrySet in interface Object2ObjectMap<K,V>
    
    Returns:
    
    a type-specific set view of the mappings contained in this map.
    
    See Also:
    
    Object2ObjectMap.entrySet()
  - keySet
```
public ObjectSet<K> keySet()
```
    Description copied from interface: Object2ObjectMap
    
    Returns a set view of the keys contained in this map.
    Note that this specification strengthens the one given in Map.keySet().
    
    Specified by:
    
    keySet in interface Object2ObjectMap<K,V>
    
    Specified by:
    
    keySet in interface java.util.Map<K,V>
    
    Returns:
    
    a set view of the keys contained in this map.
    
    See Also:
    
    Map.keySet()
  - values
```
public ObjectCollection<V> values()
```
    Description copied from interface: Object2ObjectMap
    
    Returns a set view of the values contained in this map.
    Note that this specification strengthens the one given in Map.values().
    
    Specified by:
    
    values in interface Object2ObjectMap<K,V>
    
    Specified by:
    
    values in interface java.util.Map<K,V>
    
    Returns:
    
    a set view of the values contained in this map.
    
    See Also:
    
    Map.values()
  - clear
```
public void clear()
```
    Description copied from interface: Function
    
    Removes all associations from this function (optional operation).
    
    Specified by:
    
    clear in interface Function<K,V>
    
    Specified by:
    
    clear in interface java.util.Map<K,V>
    
    Overrides:
    
    clear in class Object2ObjectFunctions.SynchronizedFunction<K,V>
    
    See Also:
    
    Map.clear()
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class Object2ObjectFunctions.SynchronizedFunction<K,V>
  - remove
```
public V remove(java.lang.Object k)
```
    Description copied from interface: Function
    
    Removes this key and the associated value from this function if it is present (optional operation).
    
    Specified by:
    
    remove in interface Function<K,V>
    
    Specified by:
    
    remove in interface java.util.Map<K,V>
    
    Overrides:
    
    remove in class Object2ObjectFunctions.SynchronizedFunction<K,V>
    
    Parameters:
    
    k - the key.
    
    Returns:
    
    the old value, or null if no value was present for the given key.
    
    See Also:
    
    Map.remove(Object)
  - get
```
public V get(java.lang.Object k)
```
    Description copied from interface: Function
    
    Returns the value associated by this function to the specified key.
    
    Specified by:
    
    get in interface Function<K,V>
    
    Specified by:
    
    get in interface java.util.Map<K,V>
    
    Overrides:
    
    get in class Object2ObjectFunctions.SynchronizedFunction<K,V>
    
    Parameters:
    
    k - the key.
    
    Returns:
    
    the corresponding value, or null if no value was present for the given key.
    
    See Also:
    
    Map.get(Object)
  - isEmpty
```
public boolean isEmpty()
```
    Specified by:
    
    isEmpty in interface java.util.Map<K,V>
  - entrySet
```
public ObjectSet<java.util.Map.Entry<K,V>> entrySet()
```
    Description copied from interface: Object2ObjectMap
    
    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 Object2ObjectMap<K,V>
    
    Specified by:
    
    entrySet in interface java.util.Map<K,V>
    
    Returns:
    
    a set view of the mappings contained in this map.
    
    See Also:
    
    Map.entrySet()
  - hashCode
```
public int hashCode()
```
    Specified by:
    
    hashCode in interface java.util.Map<K,V>
    
    Overrides:
    
    hashCode in class java.lang.Object
  - equals
```
public boolean equals(java.lang.Object o)
```
    Specified by:
    
    equals in interface java.util.Map<K,V>
    
    Overrides:
    
    equals in class java.lang.Object

Class Object2ObjectMaps.SynchronizedMap<K,V>

Nested Class Summary

Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.objects.Object2ObjectMap

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface java.util.Map

Method Detail

size

containsKey

containsValue

defaultReturnValue

defaultReturnValue

put

putAll

object2ObjectEntrySet

keySet

values

clear

toString

remove

get

isEmpty

entrySet

hashCode

equals