public class Float2ShortArrayMap extends AbstractFloat2ShortMap implements Serializable, 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.
AbstractFloat2ShortMap.BasicEntry
Float2ShortMap.Entry, Float2ShortMap.FastEntrySet
Constructor and Description |
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Float2ShortArrayMap()
Creates a new empty array map.
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Float2ShortArrayMap(float[] key,
short[] value)
Creates a new empty array map with given key and value backing arrays.
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Float2ShortArrayMap(float[] key,
short[] 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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Float2ShortArrayMap(Float2ShortMap m)
Creates a new empty array map copying the entries of a given map.
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Float2ShortArrayMap(int capacity)
Creates a new empty array map of given capacity.
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Float2ShortArrayMap(Map<? extends Float,? extends Short> 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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Float2ShortArrayMap |
clone()
Returns a deep copy of this map.
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boolean |
containsKey(float k)
Checks whether the given value is contained in
AbstractFloat2ShortMap.keySet() . |
boolean |
containsValue(short v)
Checks whether the given value is contained in
AbstractFloat2ShortMap.values() . |
Float2ShortMap.FastEntrySet |
float2ShortEntrySet()
Returns a type-specific set view of the mappings contained in this map.
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short |
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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short |
put(float k,
short v)
Adds a pair to the map.
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short |
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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ShortCollection |
values()
Returns a type-specific-set view of the values of this map.
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containsValue, entrySet, equals, hashCode, putAll, toString
containsKey, defaultReturnValue, defaultReturnValue, get, put, remove
defaultReturnValue, defaultReturnValue
containsKey, get, put, remove
compute, computeIfAbsent, computeIfPresent, containsKey, forEach, get, getOrDefault, merge, put, putIfAbsent, remove, remove, replace, replace, replaceAll
public Float2ShortArrayMap(float[] key, short[] 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 Float2ShortArrayMap()
public Float2ShortArrayMap(int capacity)
capacity
- the initial capacity.public Float2ShortArrayMap(Float2ShortMap m)
m
- a map.public Float2ShortArrayMap(Map<? extends Float,? extends Short> m)
m
- a map.public Float2ShortArrayMap(float[] key, short[] 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 Float2ShortMap.FastEntrySet float2ShortEntrySet()
Float2ShortMap
This method is necessary because there is no inheritance along type parameters: it is thus impossible to strengthen Float2ShortMap.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).
float2ShortEntrySet
in interface Float2ShortMap
Float2ShortMap.entrySet()
public short get(float k)
Float2ShortFunction
get
in interface Float2ShortFunction
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)
AbstractFloat2ShortMap
AbstractFloat2ShortMap.keySet()
.containsKey
in interface Float2ShortFunction
containsKey
in class AbstractFloat2ShortMap
Function.containsKey(Object)
public boolean containsValue(short v)
AbstractFloat2ShortMap
AbstractFloat2ShortMap.values()
.containsValue
in interface Float2ShortMap
containsValue
in class AbstractFloat2ShortMap
Map.containsValue(Object)
public boolean isEmpty()
public short put(float k, short v)
Float2ShortFunction
put
in interface Float2ShortFunction
put
in class AbstractFloat2ShortFunction
k
- the key.v
- the value.Function.put(Object,Object)
public short remove(float k)
Float2ShortFunction
remove
in interface Float2ShortFunction
remove
in class AbstractFloat2ShortFunction
k
- the key.Function.remove(Object)
public FloatSet keySet()
AbstractFloat2ShortMap
The view is backed by the set returned by AbstractFloat2ShortMap.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 Float2ShortMap
keySet
in interface Map<Float,Short>
keySet
in class AbstractFloat2ShortMap
Map.keySet()
public ShortCollection values()
AbstractFloat2ShortMap
The view is backed by the set returned by AbstractFloat2ShortMap.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 Float2ShortMap
values
in interface Map<Float,Short>
values
in class AbstractFloat2ShortMap
Map.values()
public Float2ShortArrayMap 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.