Package com.google.common.collect
Class MutableClassToInstanceMap<B>
- java.lang.Object
-
- com.google.common.collect.ForwardingObject
-
- com.google.common.collect.ForwardingMap<K,V>
-
- com.google.common.collect.MapConstraints.ConstrainedMap<java.lang.Class<? extends B>,B>
-
- com.google.common.collect.MutableClassToInstanceMap<B>
-
- All Implemented Interfaces:
ClassToInstanceMap<B>
,java.io.Serializable
,java.util.Map<java.lang.Class<? extends B>,B>
@GwtIncompatible public final class MutableClassToInstanceMap<B> extends MapConstraints.ConstrainedMap<java.lang.Class<? extends B>,B> implements ClassToInstanceMap<B>, java.io.Serializable
A mutable class-to-instance map backed by an arbitrary user-provided map. See alsoImmutableClassToInstanceMap
.See the Guava User Guide article on
ClassToInstanceMap
.- Since:
- 2.0
- See Also:
- Serialized Form
-
-
Nested Class Summary
Nested Classes Modifier and Type Class Description private static class
MutableClassToInstanceMap.SerializedForm<B>
Serialized form of the map, to avoid serializing the constraint.-
Nested classes/interfaces inherited from class com.google.common.collect.ForwardingMap
ForwardingMap.StandardEntrySet, ForwardingMap.StandardKeySet, ForwardingMap.StandardValues
-
-
Field Summary
Fields Modifier and Type Field Description private static MapConstraint<java.lang.Class<?>,java.lang.Object>
VALUE_CAN_BE_CAST_TO_KEY
-
Fields inherited from class com.google.common.collect.MapConstraints.ConstrainedMap
constraint
-
-
Constructor Summary
Constructors Modifier Constructor Description private
MutableClassToInstanceMap(java.util.Map<java.lang.Class<? extends B>,B> delegate)
-
Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description private static <B,T extends B>
Tcast(java.lang.Class<T> type, B value)
static <B> MutableClassToInstanceMap<B>
create()
Returns a newMutableClassToInstanceMap
instance backed by aHashMap
using the default initial capacity and load factor.static <B> MutableClassToInstanceMap<B>
create(java.util.Map<java.lang.Class<? extends B>,B> backingMap)
Returns a newMutableClassToInstanceMap
instance backed by a given emptybackingMap
.<T extends B>
TgetInstance(java.lang.Class<T> type)
Returns the value the specified class is mapped to, ornull
if no entry for this class is present.<T extends B>
TputInstance(java.lang.Class<T> type, T value)
Maps the specified class to the specified value.private java.lang.Object
writeReplace()
-
Methods inherited from class com.google.common.collect.MapConstraints.ConstrainedMap
delegate, entrySet, put, putAll
-
Methods inherited from class com.google.common.collect.ForwardingMap
clear, containsKey, containsValue, 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
-
-
-
-
Field Detail
-
VALUE_CAN_BE_CAST_TO_KEY
private static final MapConstraint<java.lang.Class<?>,java.lang.Object> VALUE_CAN_BE_CAST_TO_KEY
-
-
Method Detail
-
create
public static <B> MutableClassToInstanceMap<B> create()
Returns a newMutableClassToInstanceMap
instance backed by aHashMap
using the default initial capacity and load factor.
-
create
public static <B> MutableClassToInstanceMap<B> create(java.util.Map<java.lang.Class<? extends B>,B> backingMap)
Returns a newMutableClassToInstanceMap
instance backed by a given emptybackingMap
. The caller surrenders control of the backing map, and thus should not allow any direct references to it to remain accessible.
-
putInstance
public <T extends B> T putInstance(java.lang.Class<T> type, T value)
Description copied from interface:ClassToInstanceMap
Maps the specified class to the specified value. Does not associate this value with any of the class's supertypes.- Specified by:
putInstance
in interfaceClassToInstanceMap<B>
- Returns:
- the value previously associated with this class (possibly
null
), ornull
if there was no previous entry.
-
getInstance
public <T extends B> T getInstance(java.lang.Class<T> type)
Description copied from interface:ClassToInstanceMap
Returns the value the specified class is mapped to, ornull
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.- Specified by:
getInstance
in interfaceClassToInstanceMap<B>
-
cast
private static <B,T extends B> T cast(java.lang.Class<T> type, B value)
-
writeReplace
private java.lang.Object writeReplace()
-
-