org.axonframework.common.annotation

Class SimpleResourceParameterResolverFactory

java.lang.Object

org.axonframework.common.annotation.ParameterResolverFactory

org.axonframework.common.annotation.SimpleResourceParameterResolverFactory

public final class SimpleResourceParameterResolverFactory
extends ParameterResolverFactory

Implementation of the ParameterResolverFactory that injects a static list of resources into annotated handler parameters. Any resource is eligible for injection when its type matches the parameter of the annotated handler method.

Since this factory is configured at runtime, it must be registered before any annotated handlers are registered. Handlers that have been registered before will not have their parameter eligible for injection by this factory.

Since:

2.0

Author:

Allard Buijze

Method Summary

Methods

Modifier and Type	Method and Description
protected ParameterResolver	createInstance(Annotation[] memberAnnotations, Class<?> parameterType, Annotation[] parameterAnnotations) If available, creates a ParameterResolver instance that can provide a parameter of type parameterType for a given message.
static void	register(Collection<?> injectableResources) Registers the given injectableResources for the ParameterResolverFactory.
boolean	supportsPayloadResolution() Indicates whether this resolver may be used to resolve the payload parameter of an annotated handler method.

Methods inherited from class org.axonframework.common.annotation.ParameterResolverFactory

createPayloadResolver, findParameterResolver, registerChangeListener, registerFactory, unregisterFactory

Methods inherited from class java.lang.Object

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

Method Detail

register

public static void register(Collection<?> injectableResources)

Registers the given injectableResources for the ParameterResolverFactory. This method must be called before any annotated handlers are registered. Handlers that have been registered before will not have their parameter eligible for injection by this factory.

Parameters:

injectableResources - The resources eligible for injection. Each resource is evaluated in the order provided by the iterator of the given collection.

supportsPayloadResolution

public boolean supportsPayloadResolution()

Description copied from class: ParameterResolverFactory

Indicates whether this resolver may be used to resolve the payload parameter of an annotated handler method.

Specified by:

supportsPayloadResolution in class ParameterResolverFactory

Returns:

whether this factory provides Parameter Resolvers that support payload parameters

createInstance

protected ParameterResolver createInstance(Annotation[] memberAnnotations,
                               Class<?> parameterType,
                               Annotation[] parameterAnnotations)

Description copied from class: ParameterResolverFactory

If available, creates a ParameterResolver instance that can provide a parameter of type parameterType for a given message.

If the ParameterResolverFactory cannot provide a suitable ParameterResolver, returns null.

Specified by:

createInstance in class ParameterResolverFactory

Parameters:

memberAnnotations - annotations placed on the member (e.g. method)

parameterType - the parameter type to find a resolver for

parameterAnnotations - annotations places on the parameter

Returns:

a suitable ParameterResolver, or null if none is found