com.google.common.reflect
Class MutableTypeToInstanceMap<B>

java.lang.Object
  com.google.common.collect.ForwardingObject
      com.google.common.collect.ForwardingMap<TypeToken<? extends B>,B>
          com.google.common.reflect.MutableTypeToInstanceMap<B>

All Implemented Interfaces:

TypeToInstanceMap<B>, Map<TypeToken<? extends B>,B>

@Beta
public final class MutableTypeToInstanceMap<B>
extends ForwardingMap<TypeToken<? extends B>,B>
implements TypeToInstanceMap<B>

A mutable type-to-instance map. See also ImmutableTypeToInstanceMap.

Since:

13.0

Author:

Ben Yu

Nested Class Summary

Nested classes/interfaces inherited from class com.google.common.collect.ForwardingMap

ForwardingMap.StandardEntrySet, ForwardingMap.StandardKeySet, ForwardingMap.StandardValues

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Constructor Summary

MutableTypeToInstanceMap()

Method Summary

protected Map<TypeToken<? extends B>,B>	delegate() Returns the backing delegate instance that methods are forwarded to.
<T extends B> T	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> T	getInstance(TypeToken<T> type) Returns the value the specified type is mapped to, or null if no entry for this type is present.
B	put(TypeToken<? extends B> key, B value) Not supported.
void	putAll(Map<? extends TypeToken<? extends B>,? extends B> map) Not supported.
<T extends B> T	putInstance(Class<T> type, T value) Maps the specified class to the specified value.
<T extends B> T	putInstance(TypeToken<T> type, T value) Maps the specified type to the specified value.

Methods inherited from class com.google.common.collect.ForwardingMap

clear, containsKey, containsValue, entrySet, equals, get, hashCode, isEmpty, keySet, remove, size, standardClear, standardContainsKey, standardContainsValue, standardEquals, standardHashCode, standardIsEmpty, standardPutAll, standardRemove, standardToString, values

Methods inherited from class com.google.common.collect.ForwardingObject

toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

clear, containsKey, containsValue, entrySet, equals, get, hashCode, isEmpty, keySet, remove, size, values

Constructor Detail

MutableTypeToInstanceMap

public MutableTypeToInstanceMap()

Method Detail

getInstance

@Nullable
public <T extends B> T getInstance(Class<T> type)

Description copied from interface: TypeToInstanceMap

Returns the value the specified class is mapped to, or 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(Foo.class) is equivalent to getInstance(TypeToken.of(Foo.class)).

Specified by:

getInstance in interface TypeToInstanceMap<B>

putInstance

@Nullable
public <T extends B> T putInstance(Class<T> type,
                                            @Nullable
                                            T value)

Description copied from interface: TypeToInstanceMap

Maps the specified class to the specified value. Does not associate this value with any of the class's supertypes.

putInstance(Foo.class, foo) is equivalent to putInstance(TypeToken.of(Foo.class), foo).

Specified by:

putInstance in interface TypeToInstanceMap<B>

Returns:

the value previously associated with this class (possibly null), or null if there was no previous entry.

getInstance

@Nullable
public <T extends B> T getInstance(TypeToken<T> type)

Description copied from interface: TypeToInstanceMap

Returns the value the specified type is mapped to, or null if no entry for this type is present. This will only return a value that was bound to this specific type, not a value that may have been bound to a subtype.

Specified by:

getInstance in interface TypeToInstanceMap<B>

putInstance

@Nullable
public <T extends B> T putInstance(TypeToken<T> type,
                                            @Nullable
                                            T value)

Description copied from interface: TypeToInstanceMap

Maps the specified type to the specified value. Does not associate this value with any of the type's supertypes.

Specified by:

putInstance in interface TypeToInstanceMap<B>

Returns:

the value previously associated with this type (possibly null), or null if there was no previous entry.

put

public B put(TypeToken<? extends B> key,
             B value)

Not supported. Use putInstance(java.lang.Class, T) instead.

Specified by:

put in interface Map<TypeToken<? extends B>,B>

Overrides:

put in class ForwardingMap<TypeToken<? extends B>,B>

putAll

public void putAll(Map<? extends TypeToken<? extends B>,? extends B> map)

Not supported. Use putInstance(java.lang.Class, T) instead.

Specified by:

putAll in interface Map<TypeToken<? extends B>,B>

Overrides:

putAll in class ForwardingMap<TypeToken<? extends B>,B>

delegate

protected Map<TypeToken<? extends B>,B> delegate()

Description copied from class: ForwardingObject

Returns the backing delegate instance that methods are forwarded to. Abstract subclasses generally override this method with an abstract method that has a more specific return type, such as ForwardingSet.delegate(). Concrete subclasses override this method to supply the instance being decorated.

Specified by:

delegate in class ForwardingMap<TypeToken<? extends B>,B>