Function<java.lang.Long,java.lang.Float>, Long2FloatFunction, Long2FloatMap, java.io.Serializable, java.lang.Cloneable, java.util.function.Function<java.lang.Long,java.lang.Float>, java.util.function.LongToDoubleFunction, java.util.Map<java.lang.Long,java.lang.Float>public class Long2FloatArrayMap extends AbstractLong2FloatMap 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.
AbstractLong2FloatMap.BasicEntry, AbstractLong2FloatMap.BasicEntrySetLong2FloatMap.Entry, Long2FloatMap.FastEntrySet| Constructor | Description |
|---|---|
Long2FloatArrayMap() |
Creates a new empty array map.
|
Long2FloatArrayMap(int capacity) |
Creates a new empty array map of given capacity.
|
Long2FloatArrayMap(long[] key,
float[] value) |
Creates a new empty array map with given key and value backing arrays.
|
Long2FloatArrayMap(long[] key,
float[] value,
int size) |
Creates a new array map with given key and value backing arrays, using the
given number of elements.
|
Long2FloatArrayMap(Long2FloatMap m) |
Creates a new empty array map copying the entries of a given map.
|
Long2FloatArrayMap(java.util.Map<? extends java.lang.Long,? extends java.lang.Float> m) |
Creates a new empty array map copying the entries of a given map.
|
| Modifier and Type | Method | Description |
|---|---|---|
void |
clear() |
Removes all of the mappings from this map (optional operation).
|
Long2FloatArrayMap |
clone() |
Returns a deep copy of this map.
|
boolean |
containsKey(long k) |
Returns true if this function contains a mapping for the specified key.
|
boolean |
containsValue(float v) |
Returns
true if this map maps one or more keys to the specified
value. |
float |
get(long k) |
Returns the value to which the given key is mapped.
|
boolean |
isEmpty() |
|
LongSet |
keySet() |
Returns a type-specific-set view of the keys of this map.
|
Long2FloatMap.FastEntrySet |
long2FloatEntrySet() |
Returns a type-specific set view of the mappings contained in this map.
|
float |
put(long k,
float v) |
Adds a pair to the map (optional operation).
|
float |
remove(long k) |
Removes the mapping with the given key (optional operation).
|
int |
size() |
Returns the number of key/value mappings in this map.
|
FloatCollection |
values() |
Returns a type-specific-set view of the values of this map.
|
defaultReturnValue, defaultReturnValueequals, hashCode, putAll, toStringapplyAsDoublecompute, compute, computeIfAbsent, computeIfAbsent, computeIfAbsentNullable, computeIfAbsentPartial, computeIfPresent, computeIfPresent, containsKey, containsValue, defaultReturnValue, defaultReturnValue, entrySet, get, getOrDefault, getOrDefault, merge, merge, put, putIfAbsent, putIfAbsent, remove, remove, remove, replace, replace, replace, replacepublic Long2FloatArrayMap(long[] 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 Long2FloatArrayMap()
public Long2FloatArrayMap(int capacity)
capacity - the initial capacity.public Long2FloatArrayMap(Long2FloatMap m)
m - a map.public Long2FloatArrayMap(java.util.Map<? extends java.lang.Long,? extends java.lang.Float> m)
m - a map.public Long2FloatArrayMap(long[] 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 Long2FloatMap.FastEntrySet long2FloatEntrySet()
Long2FloatMap
This method is necessary because there is no inheritance along type
parameters: it is thus impossible to strengthen Map.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).
long2FloatEntrySet in interface Long2FloatMapMap.entrySet()public float get(long k)
Long2FloatFunctionget in interface Long2FloatFunctionk - the key.Function.get(Object)public int size()
Long2FloatMapInteger.MAX_VALUE elements, returns
Integer.MAX_VALUE.size in interface Function<java.lang.Long,java.lang.Float>size in interface Long2FloatMapsize in interface java.util.Map<java.lang.Long,java.lang.Float>Size64public void clear()
Long2FloatMapclear in interface Function<java.lang.Long,java.lang.Float>clear in interface Long2FloatMapclear in interface java.util.Map<java.lang.Long,java.lang.Float>Map.clear()public boolean containsKey(long k)
Long2FloatMapcontainsKey in interface Long2FloatFunctioncontainsKey in interface Long2FloatMapcontainsKey in class AbstractLong2FloatMapk - the key.key.Map.containsKey(Object)public boolean containsValue(float v)
Long2FloatMaptrue if this map maps one or more keys to the specified
value.containsValue in interface Long2FloatMapcontainsValue in class AbstractLong2FloatMapMap.containsValue(Object)public boolean isEmpty()
isEmpty in interface java.util.Map<java.lang.Long,java.lang.Float>isEmpty in class AbstractLong2FloatMappublic float put(long k,
float v)
Long2FloatFunctionput in interface Long2FloatFunctionk - the key.v - the value.Function.put(Object,Object)public float remove(long k)
Long2FloatFunctionremove in interface Long2FloatFunctionk - the key.Function.remove(Object)public LongSet keySet()
AbstractLong2FloatMap
The view is backed by the set returned by Map.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 Long2FloatMapkeySet in interface java.util.Map<java.lang.Long,java.lang.Float>keySet in class AbstractLong2FloatMapMap.keySet()public FloatCollection values()
AbstractLong2FloatMap
The view is backed by the set returned by Map.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 Long2FloatMapvalues in interface java.util.Map<java.lang.Long,java.lang.Float>values in class AbstractLong2FloatMapMap.values()public Long2FloatArrayMap 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.