Class RealMapBinder<K,V>
- All Implemented Interfaces:
Module
As a MapBinder, it acts as a factory for LinkedBindingBuilders for each of the map's values.
It delegates to a Multibinder
of entries (keys to value providers).
As a Module, it installs the binding to the map itself, as well as to a corresponding map whose values are providers.
As a module, this implements equals() and hashcode() in order to trick Guice into executing its configure() method only once. That makes it so that multiple mapbinders can be created for the same target map, but only one is bound. Since the list of bindings is retrieved from the injector itself (and not the mapbinder), each mapbinder has access to all contributions from all equivalent mapbinders.
Rather than binding a single Map.Entry<K, V>, the map binder binds keys and values independently. This allows the values to be properly scoped.
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Method Summary
Modifier and TypeMethodDescriptionaddBinding
(K key) This creates two bindings.void
Contributes bindings and other configurations for this module tobinder
.boolean
int
hashCode()
static <K,
V> RealMapBinder <K, V> newMapRealBinder
(Binder binder, TypeLiteral<K> keyType, TypeLiteral<V> valueType) Returns a new mapbinder that collects entries ofkeyType
/valueType
in aMap
that is itself bound with no binding annotation.static <K,
V> RealMapBinder <K, V> newRealMapBinder
(Binder binder, TypeLiteral<K> keyType, TypeLiteral<V> valueType, Annotation annotation) Returns a new mapbinder that collects entries ofkeyType
/valueType
in aMap
that is itself bound withannotation
.static <K,
V> RealMapBinder <K, V> newRealMapBinder
(Binder binder, TypeLiteral<K> keyType, TypeLiteral<V> valueType, Class<? extends Annotation> annotationType) Returns a new mapbinder that collects entries ofkeyType
/valueType
in aMap
that is itself bound withannotationType
.void
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Method Details
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newMapRealBinder
public static <K,V> RealMapBinder<K,V> newMapRealBinder(Binder binder, TypeLiteral<K> keyType, TypeLiteral<V> valueType) Returns a new mapbinder that collects entries ofkeyType
/valueType
in aMap
that is itself bound with no binding annotation. -
newRealMapBinder
public static <K,V> RealMapBinder<K,V> newRealMapBinder(Binder binder, TypeLiteral<K> keyType, TypeLiteral<V> valueType, Annotation annotation) Returns a new mapbinder that collects entries ofkeyType
/valueType
in aMap
that is itself bound withannotation
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newRealMapBinder
public static <K,V> RealMapBinder<K,V> newRealMapBinder(Binder binder, TypeLiteral<K> keyType, TypeLiteral<V> valueType, Class<? extends Annotation> annotationType) Returns a new mapbinder that collects entries ofkeyType
/valueType
in aMap
that is itself bound withannotationType
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permitDuplicates
public void permitDuplicates() -
addBinding
This creates two bindings. One for theMap.Entry<K, Provider<V>>
and another forV
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configure
Description copied from interface:Module
Contributes bindings and other configurations for this module tobinder
.Do not invoke this method directly to install submodules. Instead use
Binder.install(Module)
, which ensures thatprovider methods
are discovered. -
equals
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hashCode
public int hashCode()
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