Package com.google.common.reflect
Class ImmutableTypeToInstanceMap<B>
- java.lang.Object
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- com.google.common.collect.ForwardingObject
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- com.google.common.collect.ForwardingMap<TypeToken<? extends B>,B>
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- com.google.common.reflect.ImmutableTypeToInstanceMap<B>
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- All Implemented Interfaces:
TypeToInstanceMap<B>
,Map<TypeToken<? extends B>,B>
@Beta public final class ImmutableTypeToInstanceMap<B> extends ForwardingMap<TypeToken<? extends B>,B> implements TypeToInstanceMap<B>
A type-to-instance map backed by anImmutableMap
. See alsoMutableTypeToInstanceMap
.- Since:
- 13.0
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static <B> ImmutableTypeToInstanceMap.Builder<B>
builder()
Returns a new builder.<T extends B>
TgetInstance(TypeToken<T> type)
Returns the value the specified type is mapped to, ornull
if no entry for this type is present.<T extends B>
TgetInstance(Class<T> type)
Returns the value the specified class is mapped to, ornull
if no entry for this class is present.static <B> ImmutableTypeToInstanceMap<B>
of()
Returns an empty type to instance map.<T extends B>
TputInstance(TypeToken<T> type, T value)
Guaranteed to throw an exception and leave the map unmodified.<T extends B>
TputInstance(Class<T> type, T value)
Guaranteed to throw an exception and leave the map unmodified.-
Methods inherited from class com.google.common.collect.ForwardingMap
clear, containsKey, containsValue, entrySet, equals, get, hashCode, isEmpty, keySet, put, putAll, remove, size, values
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Methods inherited from class com.google.common.collect.ForwardingObject
toString
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Methods inherited from interface java.util.Map
clear, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, equals, forEach, get, getOrDefault, hashCode, isEmpty, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values
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Method Detail
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of
public static <B> ImmutableTypeToInstanceMap<B> of()
Returns an empty type to instance map.
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builder
public static <B> ImmutableTypeToInstanceMap.Builder<B> builder()
Returns a new builder.
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getInstance
public <T extends B> T getInstance(TypeToken<T> type)
Description copied from interface:TypeToInstanceMap
Returns the value the specified type is mapped to, ornull
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 interfaceTypeToInstanceMap<B>
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putInstance
public <T extends B> T putInstance(TypeToken<T> type, T value)
Guaranteed to throw an exception and leave the map unmodified.- Specified by:
putInstance
in interfaceTypeToInstanceMap<B>
- Returns:
- the value previously associated with this type (possibly
null
), ornull
if there was no previous entry. - Throws:
UnsupportedOperationException
- always
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getInstance
public <T extends B> T getInstance(Class<T> type)
Description copied from interface:TypeToInstanceMap
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.getInstance(Foo.class)
is equivalent togetInstance(TypeToken.of(Foo.class))
.- Specified by:
getInstance
in interfaceTypeToInstanceMap<B>
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putInstance
public <T extends B> T putInstance(Class<T> type, T value)
Guaranteed to throw an exception and leave the map unmodified.- Specified by:
putInstance
in interfaceTypeToInstanceMap<B>
- Returns:
- the value previously associated with this class (possibly
null
), ornull
if there was no previous entry. - Throws:
UnsupportedOperationException
- always
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