public class Float2FloatArrayMap extends AbstractFloat2FloatMap 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.
AbstractFloat2FloatMap.BasicEntryFloat2FloatMap.Entry, Float2FloatMap.FastEntrySet| Constructor and Description |
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Float2FloatArrayMap()
Creates a new empty array map.
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Float2FloatArrayMap(float[] key,
float[] value)
Creates a new empty array map with given key and value backing arrays.
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Float2FloatArrayMap(float[] key,
float[] 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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Float2FloatArrayMap(Float2FloatMap m)
Creates a new empty array map copying the entries of a given map.
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Float2FloatArrayMap(int capacity)
Creates a new empty array map of given capacity.
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Float2FloatArrayMap(Map<? extends Float,? extends Float> m)
Creates a new empty array map copying the entries of a given map.
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| Modifier and Type | Method and Description |
|---|---|
void |
clear()
Removes all associations from this function (optional operation).
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Float2FloatArrayMap |
clone()
Returns a deep copy of this map.
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boolean |
containsKey(float k)
Checks whether the given value is contained in
AbstractFloat2FloatMap.keySet(). |
boolean |
containsValue(float v)
Checks whether the given value is contained in
AbstractFloat2FloatMap.values(). |
Float2FloatMap.FastEntrySet |
float2FloatEntrySet()
Returns a type-specific set view of the mappings contained in this map.
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float |
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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float |
put(float k,
float v)
Adds a pair to the map.
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float |
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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FloatCollection |
values()
Returns a type-specific-set view of the values of this map.
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containsValue, entrySet, equals, hashCode, putAll, toStringcontainsKey, defaultReturnValue, defaultReturnValue, get, put, removedefaultReturnValue, defaultReturnValuecontainsKey, get, put, removecompute, computeIfAbsent, computeIfPresent, containsKey, forEach, get, getOrDefault, merge, put, putIfAbsent, remove, remove, replace, replace, replaceAllpublic Float2FloatArrayMap(float[] key,
float[] 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 Float2FloatArrayMap()
public Float2FloatArrayMap(int capacity)
capacity - the initial capacity.public Float2FloatArrayMap(Float2FloatMap m)
m - a map.public Float2FloatArrayMap(Map<? extends Float,? extends Float> m)
m - a map.public Float2FloatArrayMap(float[] key,
float[] 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 Float2FloatMap.FastEntrySet float2FloatEntrySet()
Float2FloatMapThis method is necessary because there is no inheritance along type parameters: it is thus impossible to strengthen Float2FloatMap.entrySet() so that it returns an
ObjectSet of objects of type Map.Entry (the latter makes it possible to access keys and values with type-specific methods).
float2FloatEntrySet in interface Float2FloatMapFloat2FloatMap.entrySet()public float get(float k)
Float2FloatFunctionget in interface Float2FloatFunctionk - the key.Function.get(Object)public int size()
FunctionMost 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()
Functionpublic boolean containsKey(float k)
AbstractFloat2FloatMapAbstractFloat2FloatMap.keySet().containsKey in interface Float2FloatFunctioncontainsKey in class AbstractFloat2FloatMapFunction.containsKey(Object)public boolean containsValue(float v)
AbstractFloat2FloatMapAbstractFloat2FloatMap.values().containsValue in interface Float2FloatMapcontainsValue in class AbstractFloat2FloatMapMap.containsValue(Object)public boolean isEmpty()
public float put(float k,
float v)
Float2FloatFunctionput in interface Float2FloatFunctionput in class AbstractFloat2FloatFunctionk - the key.v - the value.Function.put(Object,Object)public float remove(float k)
Float2FloatFunctionremove in interface Float2FloatFunctionremove in class AbstractFloat2FloatFunctionk - the key.Function.remove(Object)public FloatSet keySet()
AbstractFloat2FloatMapThe view is backed by the set returned by AbstractFloat2FloatMap.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 Float2FloatMapkeySet in interface Map<Float,Float>keySet in class AbstractFloat2FloatMapMap.keySet()public FloatCollection values()
AbstractFloat2FloatMapThe view is backed by the set returned by AbstractFloat2FloatMap.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 Float2FloatMapvalues in interface Map<Float,Float>values in class AbstractFloat2FloatMapMap.values()public Float2FloatArrayMap 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.