protected static class LookupInitializer.LookupImpl extends Object implements Lookup
Lookup
.Modifier and Type | Field and Description |
---|---|
protected Map<Class<?>,Collection<Object>> |
serviceMap |
Modifier | Constructor and Description |
---|---|
protected |
LookupImpl(Map<Class<?>,Collection<Class<?>>> initialServices,
BiFunction<Class<?>,Class<?>,Object> factory)
Creates a new instance of
Lookup with services found in the
application classpath. |
Modifier and Type | Method and Description |
---|---|
<T> T |
lookup(Class<T> serviceClass)
Lookup for a service of the given type.
|
<T> Collection<T> |
lookupAll(Class<T> serviceClass)
Lookup for all services by the provided
serviceClass . |
protected final Map<Class<?>,Collection<Object>> serviceMap
protected LookupImpl(Map<Class<?>,Collection<Class<?>>> initialServices, BiFunction<Class<?>,Class<?>,Object> factory)
Lookup
with services found in the
application classpath.initialServices
- map of initial services with their implementationsfactory
- a factory to create a service object instancepublic <T> T lookup(Class<T> serviceClass)
Lookup
The serviceClass
is usually an interface (though it doesn't have
to be) and the returned value is some implementation of this interface.
lookup
in interface Lookup
T
- a service typeserviceClass
- a service SPI classserviceClass
, may be
null
if no services are registered for this SPILookup.lookupAll(Class)
public <T> Collection<T> lookupAll(Class<T> serviceClass)
Lookup
serviceClass
.
The serviceClass
is usually an interface class (though it doesn't
have to be) and the returned value is all implementations of this
interface.
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