public class Long2BooleanArrayMap extends AbstractLong2BooleanMap 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.
AbstractLong2BooleanMap.BasicEntry, AbstractLong2BooleanMap.BasicEntrySet
Long2BooleanMap.Entry, Long2BooleanMap.FastEntrySet
Constructor and Description |
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Long2BooleanArrayMap()
Creates a new empty array map.
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Long2BooleanArrayMap(int capacity)
Creates a new empty array map of given capacity.
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Long2BooleanArrayMap(long[] key,
boolean[] value)
Creates a new empty array map with given key and value backing arrays.
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Long2BooleanArrayMap(long[] 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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Long2BooleanArrayMap(Long2BooleanMap m)
Creates a new empty array map copying the entries of a given map.
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Long2BooleanArrayMap(java.util.Map<? extends java.lang.Long,? extends java.lang.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 |
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void |
clear()
Removes all of the mappings from this map (optional operation).
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Long2BooleanArrayMap |
clone()
Returns a deep copy of this map.
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boolean |
containsKey(long 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(long k)
Returns the value to which the given key is mapped.
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boolean |
isEmpty() |
LongSet |
keySet()
Returns a type-specific-set view of the keys of this map.
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Long2BooleanMap.FastEntrySet |
long2BooleanEntrySet()
Returns a type-specific set view of the mappings contained in this map.
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boolean |
put(long k,
boolean v)
Adds a pair to the map (optional operation).
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boolean |
remove(long 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, toString
defaultReturnValue, defaultReturnValue
compute, computeIfAbsent, computeIfAbsent, computeIfAbsentNullable, computeIfAbsentPartial, computeIfPresent, containsKey, containsValue, defaultReturnValue, defaultReturnValue, entrySet, forEach, get, getOrDefault, getOrDefault, merge, put, putIfAbsent, remove, remove, replace, replace
andThen, andThenByte, andThenChar, andThenDouble, andThenFloat, andThenInt, andThenLong, andThenObject, andThenReference, andThenShort, compose, composeByte, composeChar, composeDouble, composeFloat, composeInt, composeLong, composeObject, composeReference, composeShort, test
public Long2BooleanArrayMap(long[] 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 Long2BooleanArrayMap()
public Long2BooleanArrayMap(int capacity)
capacity
- the initial capacity.public Long2BooleanArrayMap(Long2BooleanMap m)
m
- a map.public Long2BooleanArrayMap(java.util.Map<? extends java.lang.Long,? extends java.lang.Boolean> m)
m
- a map.public Long2BooleanArrayMap(long[] 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 Long2BooleanMap.FastEntrySet long2BooleanEntrySet()
Long2BooleanMap
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).
long2BooleanEntrySet
in interface Long2BooleanMap
Map.entrySet()
public boolean get(long k)
Long2BooleanFunction
get
in interface Long2BooleanFunction
k
- the key.Function.get(Object)
public int size()
Long2BooleanMap
Integer.MAX_VALUE
elements, returns Integer.MAX_VALUE
.size
in interface Long2BooleanMap
size
in interface java.util.Map<java.lang.Long,java.lang.Boolean>
Size64
public void clear()
Long2BooleanMap
clear
in interface Long2BooleanMap
clear
in interface java.util.Map<java.lang.Long,java.lang.Boolean>
Map.clear()
public boolean containsKey(long k)
AbstractLong2BooleanMap
containsKey
in interface Long2BooleanFunction
containsKey
in interface Long2BooleanMap
containsKey
in class AbstractLong2BooleanMap
k
- the key.key
.Map.containsKey(Object)
public boolean containsValue(boolean v)
AbstractLong2BooleanMap
true
if this map maps one or more keys to the specified value.containsValue
in interface Long2BooleanMap
containsValue
in class AbstractLong2BooleanMap
Map.containsValue(Object)
public boolean isEmpty()
isEmpty
in interface java.util.Map<java.lang.Long,java.lang.Boolean>
isEmpty
in class AbstractLong2BooleanMap
public boolean put(long k, boolean v)
Long2BooleanFunction
put
in interface Long2BooleanFunction
k
- the key.v
- the value.Function.put(Object,Object)
public boolean remove(long k)
Long2BooleanFunction
remove
in interface Long2BooleanFunction
k
- the key.Function.remove(Object)
public LongSet keySet()
AbstractLong2BooleanMap
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 Long2BooleanMap
keySet
in interface java.util.Map<java.lang.Long,java.lang.Boolean>
keySet
in class AbstractLong2BooleanMap
Map.keySet()
public BooleanCollection values()
AbstractLong2BooleanMap
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 Long2BooleanMap
values
in interface java.util.Map<java.lang.Long,java.lang.Boolean>
values
in class AbstractLong2BooleanMap
Map.values()
public Long2BooleanArrayMap 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