public class Byte2BooleanArrayMap extends AbstractByte2BooleanMap 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.
AbstractByte2BooleanMap.BasicEntryByte2BooleanMap.Entry, Byte2BooleanMap.FastEntrySet| Constructor and Description |
|---|
Byte2BooleanArrayMap()
Creates a new empty array map.
|
Byte2BooleanArrayMap(byte[] key,
boolean[] value)
Creates a new empty array map with given key and value backing arrays.
|
Byte2BooleanArrayMap(byte[] key,
boolean[] value,
int size)
Creates a new array map with given key and value backing arrays, using the given number of elements.
|
Byte2BooleanArrayMap(Byte2BooleanMap m)
Creates a new empty array map copying the entries of a given map.
|
Byte2BooleanArrayMap(int capacity)
Creates a new empty array map of given capacity.
|
Byte2BooleanArrayMap(Map<? extends Byte,? extends Boolean> m)
Creates a new empty array map copying the entries of a given map.
|
| Modifier and Type | Method and Description |
|---|---|
Byte2BooleanMap.FastEntrySet |
byte2BooleanEntrySet()
Returns a type-specific set view of the mappings contained in this map.
|
void |
clear()
Removes all associations from this function (optional operation).
|
Byte2BooleanArrayMap |
clone()
Returns a deep copy of this map.
|
boolean |
containsKey(byte k)
Checks whether the given value is contained in
AbstractByte2BooleanMap.keySet(). |
boolean |
containsValue(boolean v)
Checks whether the given value is contained in
AbstractByte2BooleanMap.values(). |
boolean |
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.
|
boolean |
put(byte k,
boolean v)
Adds a pair to the map.
|
boolean |
remove(byte k)
Removes the mapping with the given key.
|
int |
size()
Returns the intended number of keys in this function, or -1 if no such number exists.
|
BooleanCollection |
values()
Returns a type-specific-set view of the values of this map.
|
containsValue, entrySet, equals, hashCode, putAll, toStringcontainsKey, defaultReturnValue, defaultReturnValue, get, put, removedefaultReturnValue, defaultReturnValuecontainsKey, get, put, removecompute, computeIfAbsent, computeIfPresent, containsKey, forEach, get, getOrDefault, merge, put, putIfAbsent, remove, remove, replace, replace, replaceAllpublic Byte2BooleanArrayMap(byte[] 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 Byte2BooleanArrayMap()
public Byte2BooleanArrayMap(int capacity)
capacity - the initial capacity.public Byte2BooleanArrayMap(Byte2BooleanMap m)
m - a map.public Byte2BooleanArrayMap(Map<? extends Byte,? extends Boolean> m)
m - a map.public Byte2BooleanArrayMap(byte[] 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 Byte2BooleanMap.FastEntrySet byte2BooleanEntrySet()
Byte2BooleanMapThis method is necessary because there is no inheritance along type parameters: it is thus impossible to strengthen Byte2BooleanMap.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).
byte2BooleanEntrySet in interface Byte2BooleanMapByte2BooleanMap.entrySet()public boolean get(byte k)
Byte2BooleanFunctionget in interface Byte2BooleanFunctionk - 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(byte k)
AbstractByte2BooleanMapAbstractByte2BooleanMap.keySet().containsKey in interface Byte2BooleanFunctioncontainsKey in class AbstractByte2BooleanMapFunction.containsKey(Object)public boolean containsValue(boolean v)
AbstractByte2BooleanMapAbstractByte2BooleanMap.values().containsValue in interface Byte2BooleanMapcontainsValue in class AbstractByte2BooleanMapMap.containsValue(Object)public boolean isEmpty()
public boolean put(byte k,
boolean v)
Byte2BooleanFunctionput in interface Byte2BooleanFunctionput in class AbstractByte2BooleanFunctionk - the key.v - the value.Function.put(Object,Object)public boolean remove(byte k)
Byte2BooleanFunctionremove in interface Byte2BooleanFunctionremove in class AbstractByte2BooleanFunctionk - the key.Function.remove(Object)public ByteSet keySet()
AbstractByte2BooleanMapThe view is backed by the set returned by AbstractByte2BooleanMap.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 Byte2BooleanMapkeySet in interface Map<Byte,Boolean>keySet in class AbstractByte2BooleanMapMap.keySet()public BooleanCollection values()
AbstractByte2BooleanMapThe view is backed by the set returned by AbstractByte2BooleanMap.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 Byte2BooleanMapvalues in interface Map<Byte,Boolean>values in class AbstractByte2BooleanMapMap.values()public Byte2BooleanArrayMap 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.