B - the common supertype that all entries must share; often this is
simply Object@GwtCompatible public interface ClassToInstanceMap<B> extends Map<Class<? extends B>,B>
Map, the additional type-safe operations
putInstance(java.lang.Class<T>, T) and getInstance(java.lang.Class<T>) are available.
Like any other Map<Class, Object>, this map may contain entries
for primitive types, and a primitive type and its corresponding wrapper type
may map to different values.
See the Guava User Guide article on
ClassToInstanceMap.
To map a generic type to an instance of that type, use TypeToInstanceMap instead.
| Modifier and Type | Method and Description |
|---|---|
<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. |
<T extends B> |
putInstance(Class<T> type,
T value)
Maps the specified class to the specified value.
|
<T extends B> T getInstance(Class<T> type)
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.<T extends B> T putInstance(Class<T> type, @Nullable T value)
null), or null if there was no previous entry.Copyright © 2010-2015. All Rights Reserved.