public class Byte2CharArrayMap extends AbstractByte2CharMap 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.
AbstractByte2CharMap.BasicEntry, AbstractByte2CharMap.BasicEntrySetByte2CharMap.Entry, Byte2CharMap.FastEntrySetdefRetValue| Constructor and Description |
|---|
Byte2CharArrayMap()
Creates a new empty array map.
|
Byte2CharArrayMap(byte[] key,
char[] value)
Creates a new empty array map with given key and value backing arrays.
|
Byte2CharArrayMap(byte[] key,
char[] value,
int size)
Creates a new array map with given key and value backing arrays, using the given number of elements.
|
Byte2CharArrayMap(Byte2CharMap m)
Creates a new empty array map copying the entries of a given map.
|
Byte2CharArrayMap(int capacity)
Creates a new empty array map of given capacity.
|
Byte2CharArrayMap(Map<? extends Byte,? extends Character> m)
Creates a new empty array map copying the entries of a given map.
|
| Modifier and Type | Method and Description |
|---|---|
Byte2CharMap.FastEntrySet |
byte2CharEntrySet()
Returns a type-specific set view of the mappings contained in this map.
|
void |
clear()
Removes all of the mappings from this map (optional operation).
|
Byte2CharArrayMap |
clone()
Returns a deep copy of this map.
|
boolean |
containsKey(byte k)
Returns true if this function contains a mapping for the specified key.
|
boolean |
containsValue(char v)
Returns
true if this map maps one or more keys to the specified value. |
char |
get(byte k)
Returns the value to which the given key is mapped.
|
boolean |
isEmpty() |
ByteSet |
keySet()
Returns a type-specific-set view of the keys of this map.
|
char |
put(byte k,
char v)
Adds a pair to the map (optional operation).
|
char |
remove(byte k)
Removes the mapping with the given key (optional operation).
|
int |
size()
Returns the number of key/value mappings in this map.
|
CharCollection |
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, replaceapplyAsIntandThen, compose, identityforEach, replaceAllpublic Byte2CharArrayMap(byte[] key,
char[] 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 Byte2CharArrayMap()
public Byte2CharArrayMap(int capacity)
capacity - the initial capacity.public Byte2CharArrayMap(Byte2CharMap m)
m - a map.public Byte2CharArrayMap(Map<? extends Byte,? extends Character> m)
m - a map.public Byte2CharArrayMap(byte[] key,
char[] 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 Byte2CharMap.FastEntrySet byte2CharEntrySet()
Byte2CharMapThis 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).
byte2CharEntrySet in interface Byte2CharMapMap.entrySet()public char get(byte k)
Byte2CharFunctionget in interface Byte2CharFunctionk - the key.Function.get(Object)public int size()
Byte2CharMapInteger.MAX_VALUE elements, returns Integer.MAX_VALUE.public void clear()
Byte2CharMapclear in interface Byte2CharMapclear in interface Map<Byte,Character>Map.clear()public boolean containsKey(byte k)
Byte2CharMapcontainsKey in interface Byte2CharFunctioncontainsKey in interface Byte2CharMapcontainsKey in class AbstractByte2CharMapk - the key.key.Map.containsKey(Object)public boolean containsValue(char v)
Byte2CharMaptrue if this map maps one or more keys to the specified value.containsValue in interface Byte2CharMapcontainsValue in class AbstractByte2CharMapMap.containsValue(Object)public boolean isEmpty()
public char put(byte k,
char v)
Byte2CharFunctionput in interface Byte2CharFunctionk - the key.v - the value.Function.put(Object,Object)public char remove(byte k)
Byte2CharFunctionremove in interface Byte2CharFunctionk - the key.Function.remove(Object)public ByteSet keySet()
AbstractByte2CharMapThe 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 Byte2CharMapkeySet in interface Map<Byte,Character>keySet in class AbstractByte2CharMapMap.keySet()public CharCollection values()
AbstractByte2CharMapThe 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 Byte2CharMapvalues in interface Map<Byte,Character>values in class AbstractByte2CharMapMap.values()public Byte2CharArrayMap 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.