public class Double2ShortArrayMap extends AbstractDouble2ShortMap 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.
AbstractDouble2ShortMap.BasicEntryDouble2ShortMap.Entry, Double2ShortMap.FastEntrySet| Constructor and Description |
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Double2ShortArrayMap()
Creates a new empty array map.
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Double2ShortArrayMap(double[] key,
short[] value)
Creates a new empty array map with given key and value backing arrays.
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Double2ShortArrayMap(double[] 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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Double2ShortArrayMap(Double2ShortMap m)
Creates a new empty array map copying the entries of a given map.
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Double2ShortArrayMap(int capacity)
Creates a new empty array map of given capacity.
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Double2ShortArrayMap(Map<? extends Double,? 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 |
|---|---|
void |
clear()
Removes all of the mappings from this map (optional operation).
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Double2ShortArrayMap |
clone()
Returns a deep copy of this map.
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boolean |
containsKey(double k)
Returns true if this function contains a mapping for the specified key.
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boolean |
containsValue(short v)
Returns
true if this map maps one or more keys to the specified
value. |
Double2ShortMap.FastEntrySet |
double2ShortEntrySet()
Returns a type-specific set view of the mappings contained in this map.
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short |
get(double k)
Returns the value to which the given key is mapped.
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boolean |
isEmpty()
Returns true if this map contains no key-value mappings.
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DoubleSet |
keySet()
Returns a type-specific-set view of the keys of this map.
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short |
put(double k,
short v)
Adds a pair to the map (optional operation).
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short |
remove(double k)
Removes the mapping with the given key (optional operation).
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int |
size()
Returns the number of key/value mappings in this map.
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ShortCollection |
values()
Returns a type-specific-set view of the values of this map.
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equals, hashCode, putAll, toStringdefaultReturnValue, defaultReturnValuecompute, 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 Double2ShortArrayMap(double[] 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 Double2ShortArrayMap()
public Double2ShortArrayMap(int capacity)
capacity - the initial capacity.public Double2ShortArrayMap(Double2ShortMap m)
m - a map.public Double2ShortArrayMap(Map<? extends Double,? extends Short> m)
m - a map.public Double2ShortArrayMap(double[] 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 Double2ShortMap.FastEntrySet double2ShortEntrySet()
Double2ShortMap
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).
double2ShortEntrySet in interface Double2ShortMapMap.entrySet()public short get(double k)
Double2ShortFunctionget in interface Double2ShortFunctionk - the key.Function.get(Object)public int size()
Double2ShortMapInteger.MAX_VALUE elements, returns
Integer.MAX_VALUE.public void clear()
Double2ShortMapclear in interface Double2ShortMapclear in interface Map<Double,Short>Map.clear()public boolean containsKey(double k)
Double2ShortMapcontainsKey in interface Double2ShortFunctioncontainsKey in interface Double2ShortMapcontainsKey in class AbstractDouble2ShortMapk - the key.key.Map.containsKey(Object)public boolean containsValue(short v)
Double2ShortMaptrue if this map maps one or more keys to the specified
value.containsValue in interface Double2ShortMapcontainsValue in class AbstractDouble2ShortMapMap.containsValue(Object)public boolean isEmpty()
java.util.Mappublic short put(double k,
short v)
Double2ShortFunctionput in interface Double2ShortFunctionk - the key.v - the value.Function.put(Object,Object)public short remove(double k)
Double2ShortFunctionremove in interface Double2ShortFunctionk - the key.Function.remove(Object)public DoubleSet keySet()
AbstractDouble2ShortMap
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 Double2ShortMapkeySet in interface Map<Double,Short>keySet in class AbstractDouble2ShortMapMap.keySet()public ShortCollection values()
AbstractDouble2ShortMap
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 Double2ShortMapvalues in interface Map<Double,Short>values in class AbstractDouble2ShortMapMap.values()public Double2ShortArrayMap 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.