public class Float2ObjectArrayMap<V> extends AbstractFloat2ObjectMap<V> implements java.io.Serializable, java.lang.Cloneable
The main purpose of this implementation is that of wrapping cleanly the brute-force approach to the storage of a very small number of pairs: just put them into two parallel arrays and scan linearly to find an item.
AbstractFloat2ObjectMap.BasicEntry<V>
Float2ObjectMap.Entry<V>, Float2ObjectMap.FastEntrySet<V>
Constructor and Description |
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Float2ObjectArrayMap()
Creates a new empty array map.
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Float2ObjectArrayMap(float[] key,
java.lang.Object[] value)
Creates a new empty array map with given key and value backing arrays.
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Float2ObjectArrayMap(float[] key,
java.lang.Object[] value,
int size)
Creates a new array map with given key and value backing arrays, using the given number of elements.
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Float2ObjectArrayMap(Float2ObjectMap<V> m)
Creates a new empty array map copying the entries of a given map.
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Float2ObjectArrayMap(int capacity)
Creates a new empty array map of given capacity.
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Float2ObjectArrayMap(java.util.Map<? extends java.lang.Float,? extends V> m)
Creates a new empty array map copying the entries of a given map.
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Modifier and Type | Method and Description |
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void |
clear()
Removes all associations from this function (optional operation).
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Float2ObjectArrayMap<V> |
clone()
Returns a deep copy of this map.
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boolean |
containsKey(float k)
Checks whether the given value is contained in
AbstractFloat2ObjectMap.keySet() . |
boolean |
containsValue(java.lang.Object v)
Checks whether the given value is contained in
AbstractFloat2ObjectMap.values() . |
Float2ObjectMap.FastEntrySet<V> |
float2ObjectEntrySet()
Returns a type-specific set view of the mappings contained in this map.
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V |
get(float k)
Returns the value to which the given key is mapped.
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boolean |
isEmpty() |
FloatSet |
keySet()
Returns a type-specific-set view of the keys of this map.
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V |
put(float k,
V v)
Adds a pair to the map.
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V |
remove(float k)
Removes the mapping with the given key.
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int |
size()
Returns the intended number of keys in this function, or -1 if no such number exists.
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ObjectCollection<V> |
values()
Returns a type-specific-set view of the values of this map.
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entrySet, equals, hashCode, putAll, toString
containsKey, defaultReturnValue, defaultReturnValue, get, put, remove
defaultReturnValue, defaultReturnValue
containsKey, get, put, remove
public Float2ObjectArrayMap(float[] key, java.lang.Object[] value)
It is responsibility of the caller that the elements of key
are distinct.
key
- the key array.value
- the value array (it must have the same length as key
).public Float2ObjectArrayMap()
public Float2ObjectArrayMap(int capacity)
capacity
- the initial capacity.public Float2ObjectArrayMap(Float2ObjectMap<V> m)
m
- a map.public Float2ObjectArrayMap(java.util.Map<? extends java.lang.Float,? extends V> m)
m
- a map.public Float2ObjectArrayMap(float[] key, java.lang.Object[] value, int size)
It is responsibility of the caller that the first size
elements of key
are distinct.
key
- the key array.value
- the value array (it must have the same length as key
).size
- the number of valid elements in key
and value
.public Float2ObjectMap.FastEntrySet<V> float2ObjectEntrySet()
Float2ObjectMap
This method is necessary because there is no inheritance along
type parameters: it is thus impossible to strengthen Float2ObjectMap.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).
float2ObjectEntrySet
in interface Float2ObjectMap<V>
Float2ObjectMap.entrySet()
public V get(float k)
Float2ObjectFunction
get
in interface Float2ObjectFunction<V>
k
- the key.Function.get(Object)
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.
public void clear()
Function
public boolean containsKey(float k)
AbstractFloat2ObjectMap
AbstractFloat2ObjectMap.keySet()
.containsKey
in interface Float2ObjectFunction<V>
containsKey
in class AbstractFloat2ObjectMap<V>
Function.containsKey(Object)
public boolean containsValue(java.lang.Object v)
AbstractFloat2ObjectMap
AbstractFloat2ObjectMap.values()
.containsValue
in interface java.util.Map<java.lang.Float,V>
containsValue
in class AbstractFloat2ObjectMap<V>
public boolean isEmpty()
isEmpty
in interface java.util.Map<java.lang.Float,V>
isEmpty
in class AbstractFloat2ObjectMap<V>
public V put(float k, V v)
Float2ObjectFunction
put
in interface Float2ObjectFunction<V>
put
in class AbstractFloat2ObjectFunction<V>
k
- the key.v
- the value.Function.put(Object,Object)
public V remove(float k)
Float2ObjectFunction
remove
in interface Float2ObjectFunction<V>
remove
in class AbstractFloat2ObjectFunction<V>
k
- the key.Function.remove(Object)
public FloatSet keySet()
AbstractFloat2ObjectMap
The view is backed by the set returned by AbstractFloat2ObjectMap.entrySet()
. Note that
no attempt is made at caching the result of this method, as this would
require adding some attributes that lightweight implementations would
not need. Subclasses may easily override this policy by calling
this method and caching the result, but implementors are encouraged to
write more efficient ad-hoc implementations.
keySet
in interface Float2ObjectMap<V>
keySet
in interface java.util.Map<java.lang.Float,V>
keySet
in class AbstractFloat2ObjectMap<V>
Map.keySet()
public ObjectCollection<V> values()
AbstractFloat2ObjectMap
The view is backed by the set returned by AbstractFloat2ObjectMap.entrySet()
. Note that
no attempt is made at caching the result of this method, as this would
require adding some attributes that lightweight implementations would
not need. Subclasses may easily override this policy by calling
this method and caching the result, but implementors are encouraged to
write more efficient ad-hoc implementations.
values
in interface Float2ObjectMap<V>
values
in interface java.util.Map<java.lang.Float,V>
values
in class AbstractFloat2ObjectMap<V>
Map.values()
public Float2ObjectArrayMap<V> clone()
This method performs a deep copy of this hash map; the data stored in the map, however, is not cloned. Note that this makes a difference only for object keys.
clone
in class java.lang.Object