public final class MutableClassToInstanceMap<B> extends ForwardingMap<K,V> implements ClassToInstanceMap<B>
ImmutableClassToInstanceMap
.
See the Guava User Guide article on
ClassToInstanceMap
.
ForwardingMap.StandardEntrySet, ForwardingMap.StandardKeySet, ForwardingMap.StandardValues
Modifier and Type | Method and Description |
---|---|
static <B> MutableClassToInstanceMap<B> |
create()
Returns a new
MutableClassToInstanceMap instance backed by a HashMap using the default initial capacity and load factor. |
static <B> MutableClassToInstanceMap<B> |
create(Map<Class<? extends B>,B> backingMap)
Returns a new
MutableClassToInstanceMap instance backed by a given
empty backingMap . |
protected Map<K,V> |
delegate()
Returns the backing delegate instance that methods are forwarded to.
|
Set<Map.Entry<K,V>> |
entrySet() |
<T extends B> |
getInstance(Class<T> type)
Returns the value the specified class is mapped to, or
null if no
entry for this class is present. |
V |
put(K key,
V value) |
void |
putAll(Map<? extends K,? extends V> map) |
<T extends B> |
putInstance(Class<T> type,
T value)
Maps the specified class to the specified value.
|
clear, containsKey, containsValue, equals, get, hashCode, isEmpty, keySet, remove, size, standardClear, standardContainsKey, standardContainsValue, standardEquals, standardHashCode, standardIsEmpty, standardPutAll, standardRemove, standardToString, values
toString
public static <B> MutableClassToInstanceMap<B> create()
MutableClassToInstanceMap
instance backed by a HashMap
using the default initial capacity and load factor.public static <B> MutableClassToInstanceMap<B> create(Map<Class<? extends B>,B> backingMap)
MutableClassToInstanceMap
instance backed by a given
empty backingMap
. The caller surrenders control of the backing map,
and thus should not allow any direct references to it to remain accessible.public <T extends B> T putInstance(Class<T> type, T value)
ClassToInstanceMap
putInstance
in interface ClassToInstanceMap<B>
null
), or null
if there was no previous entry.public <T extends B> T getInstance(Class<T> type)
ClassToInstanceMap
null
if no
entry for this class is present. This will only return a value that was
bound to this specific class, not a value that may have been bound to a
subtype.getInstance
in interface ClassToInstanceMap<B>
protected Map<K,V> delegate()
ForwardingObject
ForwardingSet.delegate()
. Concrete subclasses override this method to supply
the instance being decorated.delegate
in class ForwardingMap<K,V>
public Set<Map.Entry<K,V>> entrySet()
entrySet
in interface Map<K,V>
entrySet
in class ForwardingMap<K,V>
public V put(K key, V value)
put
in interface Map<K,V>
put
in class ForwardingMap<K,V>
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