public class Char2FloatArrayMap extends AbstractChar2FloatMap 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.
AbstractChar2FloatMap.BasicEntryChar2FloatMap.Entry, Char2FloatMap.FastEntrySetdefRetValue| Constructor and Description |
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Char2FloatArrayMap()
Creates a new empty array map.
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Char2FloatArrayMap(char[] key,
float[] value)
Creates a new empty array map with given key and value backing arrays.
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Char2FloatArrayMap(char[] 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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Char2FloatArrayMap(Char2FloatMap m)
Creates a new empty array map copying the entries of a given map.
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Char2FloatArrayMap(int capacity)
Creates a new empty array map of given capacity.
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Char2FloatArrayMap(Map<? extends Character,? 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 |
|---|---|
Char2FloatMap.FastEntrySet |
char2FloatEntrySet()
Returns a type-specific set view of the mappings contained in this map.
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void |
clear()
Removes all associations from this function (optional operation).
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Char2FloatArrayMap |
clone()
Returns a deep copy of this map.
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boolean |
containsKey(char k)
Checks whether the given value is contained in
AbstractChar2FloatMap.keySet(). |
boolean |
containsValue(float v)
Checks whether the given value is contained in
AbstractChar2FloatMap.values(). |
float |
get(char k)
Returns the value to which the given key is mapped.
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boolean |
isEmpty() |
CharSet |
keySet()
Returns a type-specific-set view of the keys of this map.
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float |
put(char k,
float v)
Adds a pair to the map.
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float |
remove(char 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, removefinalize, getClass, notify, notifyAll, wait, wait, waitdefaultReturnValue, defaultReturnValuecontainsKey, get, put, removecontainsKey, get, put, removepublic Char2FloatArrayMap(char[] 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 Char2FloatArrayMap()
public Char2FloatArrayMap(int capacity)
capacity - the initial capacity.public Char2FloatArrayMap(Char2FloatMap m)
m - a map.public Char2FloatArrayMap(Map<? extends Character,? extends Float> m)
m - a map.public Char2FloatArrayMap(char[] 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 Char2FloatMap.FastEntrySet char2FloatEntrySet()
Char2FloatMapThis method is necessary because there is no inheritance along
type parameters: it is thus impossible to strengthen Char2FloatMap.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).
char2FloatEntrySet in interface Char2FloatMapChar2FloatMap.entrySet()public float get(char k)
Char2FloatFunctionget in interface Char2FloatFunctionk - 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(char k)
AbstractChar2FloatMapAbstractChar2FloatMap.keySet().containsKey in interface Char2FloatFunctioncontainsKey in class AbstractChar2FloatMapFunction.containsKey(Object)public boolean containsValue(float v)
AbstractChar2FloatMapAbstractChar2FloatMap.values().containsValue in interface Char2FloatMapcontainsValue in class AbstractChar2FloatMapMap.containsValue(Object)public boolean isEmpty()
public float put(char k,
float v)
Char2FloatFunctionput in interface Char2FloatFunctionput in class AbstractChar2FloatFunctionk - the key.v - the value.Function.put(Object,Object)public float remove(char k)
Char2FloatFunctionremove in interface Char2FloatFunctionremove in class AbstractChar2FloatFunctionFunction.remove(Object)public CharSet keySet()
AbstractChar2FloatMapThe view is backed by the set returned by AbstractChar2FloatMap.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 Char2FloatMapkeySet in interface Map<Character,Float>keySet in class AbstractChar2FloatMapMap.keySet()public FloatCollection values()
AbstractChar2FloatMapThe view is backed by the set returned by AbstractChar2FloatMap.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 Char2FloatMapvalues in interface Map<Character,Float>values in class AbstractChar2FloatMapMap.values()public Char2FloatArrayMap 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.
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