ch.jalu.injector.handlers.instantiation

Class DirectInstantiationProvider

java.lang.Object

ch.jalu.injector.handlers.instantiation.DirectInstantiationProvider

All Implemented Interfaces:

Handler

Direct Known Subclasses:

StandardInjectionProvider

public abstract class DirectInstantiationProvider
extends Object
implements Handler

Instantiation provider for instantiations that happen on the class directly, i.e. limited to classes which are instantiable.

Constructor Summary

Constructors

Constructor and Description
DirectInstantiationProvider()

Method Summary

Modifier and Type	Method and Description
Resolution<?>	resolve(ResolutionContext context) Resolves the context such that the object identified by the context's object identifier can be instantiated or retrieved.
protected abstract <T> Resolution<T>	safeGet(Class<T> clazz) Gets the instantiation for the class or null if unavailable.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface ch.jalu.injector.handlers.Handler

onAnnotation, onProvider, onProviderClass, postProcess

Constructor Detail

DirectInstantiationProvider

public DirectInstantiationProvider()

Method Detail

resolve

public final Resolution<?> resolve(ResolutionContext context)

Description copied from interface: Handler

Resolves the context such that the object identified by the context's object identifier can be instantiated or retrieved. May throw an exception if something is invalid, such as when the requested object is not possible to resolve (e.g. wrong combination of annotations, unmet conditions).

The returned Resolution must correspond to the type represented by the context's object identifier.

Specified by:

resolve in interface Handler

Parameters:

context - the resolution context

Returns:

the instantiation for the class, or null if not possible

safeGet

@Nullable
protected abstract <T> Resolution<T> safeGet(Class<T> clazz)

Gets the instantiation for the class or null if unavailable. This method is only called with classes which can be instantiated.

Type Parameters:

T - the class' type

Parameters:

clazz - the class to process

Returns:

the instantiation, or null if not applicable