public class Char2BooleanArrayMap extends AbstractChar2BooleanMap 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.
AbstractChar2BooleanMap.BasicEntry, AbstractChar2BooleanMap.BasicEntrySetChar2BooleanMap.Entry, Char2BooleanMap.FastEntrySet| Constructor and Description |
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Char2BooleanArrayMap()
Creates a new empty array map.
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Char2BooleanArrayMap(char[] key,
boolean[] value)
Creates a new empty array map with given key and value backing arrays.
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Char2BooleanArrayMap(char[] key,
boolean[] 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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Char2BooleanArrayMap(Char2BooleanMap m)
Creates a new empty array map copying the entries of a given map.
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Char2BooleanArrayMap(int capacity)
Creates a new empty array map of given capacity.
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Char2BooleanArrayMap(Map<? extends Character,? extends Boolean> m)
Creates a new empty array map copying the entries of a given map.
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| Modifier and Type | Method and Description |
|---|---|
Char2BooleanMap.FastEntrySet |
char2BooleanEntrySet()
Returns a type-specific set view of the mappings contained in this map.
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void |
clear()
Removes all of the mappings from this map (optional operation).
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Char2BooleanArrayMap |
clone()
Returns a deep copy of this map.
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boolean |
containsKey(char k)
Returns true if this function contains a mapping for the specified key.
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boolean |
containsValue(boolean v)
Returns
true if this map maps one or more keys to the specified value. |
boolean |
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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boolean |
put(char k,
boolean v)
Adds a pair to the map (optional operation).
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boolean |
remove(char 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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BooleanCollection |
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, replacetestand, negate, orforEach, replaceAllpublic Char2BooleanArrayMap(char[] key,
boolean[] 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 Char2BooleanArrayMap()
public Char2BooleanArrayMap(int capacity)
capacity - the initial capacity.public Char2BooleanArrayMap(Char2BooleanMap m)
m - a map.public Char2BooleanArrayMap(Map<? extends Character,? extends Boolean> m)
m - a map.public Char2BooleanArrayMap(char[] key,
boolean[] 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 Char2BooleanMap.FastEntrySet char2BooleanEntrySet()
Char2BooleanMapThis 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).
char2BooleanEntrySet in interface Char2BooleanMapMap.entrySet()public boolean get(char k)
Char2BooleanFunctionget in interface Char2BooleanFunctionk - the key.Function.get(Object)public int size()
Char2BooleanMapInteger.MAX_VALUE elements, returns Integer.MAX_VALUE.public void clear()
Char2BooleanMapclear in interface Char2BooleanMapclear in interface Map<Character,Boolean>Map.clear()public boolean containsKey(char k)
Char2BooleanMapcontainsKey in interface Char2BooleanFunctioncontainsKey in interface Char2BooleanMapcontainsKey in class AbstractChar2BooleanMapk - the key.key.Map.containsKey(Object)public boolean containsValue(boolean v)
Char2BooleanMaptrue if this map maps one or more keys to the specified value.containsValue in interface Char2BooleanMapcontainsValue in class AbstractChar2BooleanMapMap.containsValue(Object)public boolean isEmpty()
public boolean put(char k,
boolean v)
Char2BooleanFunctionput in interface Char2BooleanFunctionk - the key.v - the value.Function.put(Object,Object)public boolean remove(char k)
Char2BooleanFunctionremove in interface Char2BooleanFunctionk - the key.Function.remove(Object)public CharSet keySet()
AbstractChar2BooleanMapThe 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 Char2BooleanMapkeySet in interface Map<Character,Boolean>keySet in class AbstractChar2BooleanMapMap.keySet()public BooleanCollection values()
AbstractChar2BooleanMapThe 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 Char2BooleanMapvalues in interface Map<Character,Boolean>values in class AbstractChar2BooleanMapMap.values()public Char2BooleanArrayMap 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.