public class HashMapPro<K,V> extends AbstractMapPro<K,V> implements Map<K,V>, MapPro<K,V>, Cloneable, Serializable
AbstractMapPro.SimpleEntry<K,V>, AbstractMapPro.SimpleImmutableEntry<K,V>
Modifier and Type | Field and Description |
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static int |
DEFAULT_INITIAL_CAPACITY
The default initial capacity - MUST be a power of two.
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Constructor and Description |
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HashMapPro()
Constructs an empty HashMap with the default initial capacity
(16) and the default load factor (0.75).
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HashMapPro(int initialCapacity)
Constructs an empty HashMap with the specified initial
capacity and the default load factor (0.75).
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HashMapPro(int initialCapacity,
float loadFactor)
Constructs an empty HashMap with the specified initial
capacity and load factor.
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HashMapPro(Map<? extends K,? extends V> m)
Constructs a new HashMap with the same mappings as the
specified 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.
|
Object |
clone()
Returns a shallow copy of this HashMap instance: the keys and
values themselves are not cloned.
|
boolean |
containsKey(Object key)
Returns true if this map contains a mapping for the
specified key.
|
boolean |
containsValue(Object value)
Returns true if this map maps one or more keys to the
specified value.
|
Set<Map.Entry<K,V>> |
entrySet()
Returns a
Set view of the mappings contained in this map. |
V |
g(K key) |
V |
g(K key,
V defaultValue) |
V |
get(Object key) |
boolean |
isEmpty()
Returns true if this map contains no key-value mappings.
|
Set<K> |
keySet()
Returns a
Set view of the keys contained in this map. |
static void |
main(String[] args) |
V |
put(K key,
V value)
Associates the specified value with the specified key in this map.
|
void |
putAll(Map<? extends K,? extends V> m)
Copies all of the mappings from the specified map to this map.
|
V |
r(K key) |
V |
r(K key,
V defaultValue) |
V |
remove(Object key)
Removes the mapping for the specified key from this map if present.
|
int |
size()
Returns the number of key-value mappings in this map.
|
Collection<V> |
values()
Returns a
Collection view of the values contained in this map. |
equals, invalidKey, readExternal, toString, writeExternal
public static final int DEFAULT_INITIAL_CAPACITY
public HashMapPro(int initialCapacity, float loadFactor)
initialCapacity
- the initial capacityloadFactor
- the load factorIllegalArgumentException
- if the initial capacity is negative
or the load factor is nonpositivepublic HashMapPro(int initialCapacity)
initialCapacity
- the initial capacity.IllegalArgumentException
- if the initial capacity is negative.public HashMapPro()
public HashMapPro(Map<? extends K,? extends V> m)
m
- the map whose mappings are to be placed in this mapNullPointerException
- if the specified map is nullpublic int size()
public boolean isEmpty()
public V get(Object key)
AbstractMapPro
This implementation iterates over entrySet() searching for an entry with the specified key. If such an entry is found, the entry's value is returned. If the iteration terminates without finding such an entry, null is returned. Note that this implementation requires linear time in the size of the map; many implementations will override this method.
public V g(K key) throws PageException
g
in interface MapPro<K,V>
PageException
public boolean containsKey(Object key)
containsKey
in interface Map<K,V>
containsKey
in class AbstractMapPro<K,V>
key
- The key whose presence in this map is to be testedpublic V put(K key, V value)
put
in interface Map<K,V>
put
in class AbstractMapPro<K,V>
key
- key with which the specified value is to be associatedvalue
- value to be associated with the specified keypublic void putAll(Map<? extends K,? extends V> m)
putAll
in interface Map<K,V>
putAll
in class AbstractMapPro<K,V>
m
- mappings to be stored in this mapNullPointerException
- if the specified map is nullpublic V remove(Object key)
remove
in interface Map<K,V>
remove
in class AbstractMapPro<K,V>
key
- key whose mapping is to be removed from the mappublic V r(K key) throws PageException
r
in interface MapPro<K,V>
PageException
public void clear()
public boolean containsValue(Object value)
containsValue
in interface Map<K,V>
containsValue
in class AbstractMapPro<K,V>
value
- value whose presence in this map is to be testedpublic Object clone()
public Set<K> keySet()
Set
view of the keys contained in this map.
The set is backed by the map, so changes to the map are
reflected in the set, and vice-versa. If the map is modified
while an iteration over the set is in progress (except through
the iterator's own remove operation), the results of
the iteration are undefined. The set supports element removal,
which removes the corresponding mapping from the map, via the
Iterator.remove, Set.remove,
removeAll, retainAll, and clear
operations. It does not support the add or addAll
operations.public Collection<V> values()
Collection
view of the values contained in this map.
The collection is backed by the map, so changes to the map are
reflected in the collection, and vice-versa. If the map is
modified while an iteration over the collection is in progress
(except through the iterator's own remove operation),
the results of the iteration are undefined. The collection
supports element removal, which removes the corresponding
mapping from the map, via the Iterator.remove,
Collection.remove, removeAll,
retainAll and clear operations. It does not
support the add or addAll operations.public Set<Map.Entry<K,V>> entrySet()
Set
view of the mappings contained in this map.
The set is backed by the map, so changes to the map are
reflected in the set, and vice-versa. If the map is modified
while an iteration over the set is in progress (except through
the iterator's own remove operation, or through the
setValue operation on a map entry returned by the
iterator) the results of the iteration are undefined. The set
supports element removal, which removes the corresponding
mapping from the map, via the Iterator.remove,
Set.remove, removeAll, retainAll and
clear operations. It does not support the
add or addAll operations.Copyright © 2015 Lucee