public class Float2DoubleArrayMap extends AbstractFloat2DoubleMap 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.
AbstractFloat2DoubleMap.BasicEntry, AbstractFloat2DoubleMap.BasicEntrySetFloat2DoubleMap.Entry, Float2DoubleMap.FastEntrySet| Constructor and Description |
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Float2DoubleArrayMap()
Creates a new empty array map.
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Float2DoubleArrayMap(float[] key,
double[] value)
Creates a new empty array map with given key and value backing arrays.
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Float2DoubleArrayMap(float[] key,
double[] 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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Float2DoubleArrayMap(Float2DoubleMap m)
Creates a new empty array map copying the entries of a given map.
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Float2DoubleArrayMap(int capacity)
Creates a new empty array map of given capacity.
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Float2DoubleArrayMap(java.util.Map<? extends java.lang.Float,? extends java.lang.Double> 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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Float2DoubleArrayMap |
clone()
Returns a deep copy of this map.
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boolean |
containsKey(float k)
Returns true if this function contains a mapping for the specified key.
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boolean |
containsValue(double v)
Returns
true if this map maps one or more keys to the specified
value. |
Float2DoubleMap.FastEntrySet |
float2DoubleEntrySet()
Returns a type-specific set view of the mappings contained in this map.
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double |
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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double |
put(float k,
double v)
Adds a pair to the map (optional operation).
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double |
remove(float 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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DoubleCollection |
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, replaceapplyAsDoublepublic Float2DoubleArrayMap(float[] key,
double[] 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 Float2DoubleArrayMap()
public Float2DoubleArrayMap(int capacity)
capacity - the initial capacity.public Float2DoubleArrayMap(Float2DoubleMap m)
m - a map.public Float2DoubleArrayMap(java.util.Map<? extends java.lang.Float,? extends java.lang.Double> m)
m - a map.public Float2DoubleArrayMap(float[] key,
double[] 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 Float2DoubleMap.FastEntrySet float2DoubleEntrySet()
Float2DoubleMap
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).
float2DoubleEntrySet in interface Float2DoubleMapMap.entrySet()public double get(float k)
Float2DoubleFunctionget in interface Float2DoubleFunctionk - the key.Function.get(Object)public int size()
Float2DoubleMapInteger.MAX_VALUE elements, returns
Integer.MAX_VALUE.size in interface Float2DoubleMapsize in interface java.util.Map<java.lang.Float,java.lang.Double>Size64public void clear()
Float2DoubleMapclear in interface Float2DoubleMapclear in interface java.util.Map<java.lang.Float,java.lang.Double>Map.clear()public boolean containsKey(float k)
Float2DoubleMapcontainsKey in interface Float2DoubleFunctioncontainsKey in interface Float2DoubleMapcontainsKey in class AbstractFloat2DoubleMapk - the key.key.Map.containsKey(Object)public boolean containsValue(double v)
Float2DoubleMaptrue if this map maps one or more keys to the specified
value.containsValue in interface Float2DoubleMapcontainsValue in class AbstractFloat2DoubleMapMap.containsValue(Object)public boolean isEmpty()
isEmpty in interface java.util.Map<java.lang.Float,java.lang.Double>isEmpty in class AbstractFloat2DoubleMappublic double put(float k,
double v)
Float2DoubleFunctionput in interface Float2DoubleFunctionk - the key.v - the value.Function.put(Object,Object)public double remove(float k)
Float2DoubleFunctionremove in interface Float2DoubleFunctionk - the key.Function.remove(Object)public FloatSet keySet()
AbstractFloat2DoubleMap
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 Float2DoubleMapkeySet in interface java.util.Map<java.lang.Float,java.lang.Double>keySet in class AbstractFloat2DoubleMapMap.keySet()public DoubleCollection values()
AbstractFloat2DoubleMap
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 Float2DoubleMapvalues in interface java.util.Map<java.lang.Float,java.lang.Double>values in class AbstractFloat2DoubleMapMap.values()public Float2DoubleArrayMap 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.
clone in class java.lang.Object