public class Double2IntArrayMap extends AbstractDouble2IntMap 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.
AbstractDouble2IntMap.BasicEntry, AbstractDouble2IntMap.BasicEntrySetDouble2IntMap.Entry, Double2IntMap.FastEntrySetdefRetValue| Constructor and Description |
|---|
Double2IntArrayMap()
Creates a new empty array map.
|
Double2IntArrayMap(double[] key,
int[] value)
Creates a new empty array map with given key and value backing arrays.
|
Double2IntArrayMap(double[] key,
int[] value,
int size)
Creates a new array map with given key and value backing arrays, using the given number of elements.
|
Double2IntArrayMap(Double2IntMap m)
Creates a new empty array map copying the entries of a given map.
|
Double2IntArrayMap(int capacity)
Creates a new empty array map of given capacity.
|
Double2IntArrayMap(Map<? extends Double,? extends Integer> m)
Creates a new empty array map copying the entries of a given map.
|
| Modifier and Type | Method and Description |
|---|---|
void |
clear()
Removes all of the mappings from this map (optional operation).
|
Double2IntArrayMap |
clone()
Returns a deep copy of this map.
|
boolean |
containsKey(double k)
Returns true if this function contains a mapping for the specified key.
|
boolean |
containsValue(int v)
Returns
true if this map maps one or more keys to the specified value. |
Double2IntMap.FastEntrySet |
double2IntEntrySet()
Returns a type-specific set view of the mappings contained in this map.
|
int |
get(double k)
Returns the value to which the given key is mapped.
|
boolean |
isEmpty() |
DoubleSet |
keySet()
Returns a type-specific-set view of the keys of this map.
|
int |
put(double k,
int v)
Adds a pair to the map (optional operation).
|
int |
remove(double k)
Removes the mapping with the given key (optional operation).
|
int |
size()
Returns the number of key/value mappings in this map.
|
IntCollection |
values()
Returns a type-specific-set view of the values of this map.
|
equals, hashCode, putAll, toStringdefaultReturnValue, defaultReturnValuefinalize, getClass, notify, notifyAll, wait, wait, waitcompute, 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, replaceapplyAsIntforEach, replaceAllpublic Double2IntArrayMap(double[] key,
int[] 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 Double2IntArrayMap()
public Double2IntArrayMap(int capacity)
capacity - the initial capacity.public Double2IntArrayMap(Double2IntMap m)
m - a map.public Double2IntArrayMap(Map<? extends Double,? extends Integer> m)
m - a map.public Double2IntArrayMap(double[] key,
int[] 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 Double2IntMap.FastEntrySet double2IntEntrySet()
Double2IntMapThis 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).
double2IntEntrySet in interface Double2IntMapMap.entrySet()public int get(double k)
Double2IntFunctionget in interface Double2IntFunctionk - the key.Function.get(Object)public int size()
Double2IntMapInteger.MAX_VALUE elements, returns Integer.MAX_VALUE.public void clear()
Double2IntMapclear in interface Double2IntMapclear in interface Map<Double,Integer>Map.clear()public boolean containsKey(double k)
Double2IntMapcontainsKey in interface Double2IntFunctioncontainsKey in interface Double2IntMapcontainsKey in class AbstractDouble2IntMapk - the key.key.Map.containsKey(Object)public boolean containsValue(int v)
Double2IntMaptrue if this map maps one or more keys to the specified value.containsValue in interface Double2IntMapcontainsValue in class AbstractDouble2IntMapMap.containsValue(Object)public boolean isEmpty()
public int put(double k,
int v)
Double2IntFunctionput in interface Double2IntFunctionk - the key.v - the value.Function.put(Object,Object)public int remove(double k)
Double2IntFunctionremove in interface Double2IntFunctionk - the key.Function.remove(Object)public DoubleSet keySet()
AbstractDouble2IntMapThe 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 Double2IntMapkeySet in interface Map<Double,Integer>keySet in class AbstractDouble2IntMapMap.keySet()public IntCollection values()
AbstractDouble2IntMapThe 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 Double2IntMapvalues in interface Map<Double,Integer>values in class AbstractDouble2IntMapMap.values()public Double2IntArrayMap 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.
Copyright © 2020. All rights reserved.