org.axonframework.common.annotation

Class DefaultParameterResolverFactory

java.lang.Object

org.axonframework.common.annotation.ParameterResolverFactory

org.axonframework.common.annotation.DefaultParameterResolverFactory

public class DefaultParameterResolverFactory
extends ParameterResolverFactory

Factory for the default parameter resolvers. This factory is capable for providing parameter resolvers for Message, MetaData and @MetaData annotated parameters.

Since:

2.0

Author:

Allard Buijze

Constructor Summary

Constructors

Constructor and Description
DefaultParameterResolverFactory()

Method Summary

Methods

Modifier and Type	Method and Description
ParameterResolver	createInstance(Annotation[] methodAnnotations, Class<?> parameterType, Annotation[] parameterAnnotations) If available, creates a ParameterResolver instance that can provide a parameter of type parameterType for a given message.
ParameterResolver	newPayloadResolver(Class<?> parameterType) Creates a new payload resolver, which passes a message's payload as parameter.
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

Constructor Detail

DefaultParameterResolverFactory

public DefaultParameterResolverFactory()

Method Detail

createInstance

public ParameterResolver createInstance(Annotation[] methodAnnotations,
                               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:

methodAnnotations - 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

newPayloadResolver

public ParameterResolver newPayloadResolver(Class<?> parameterType)

Creates a new payload resolver, which passes a message's payload as parameter.

Parameters:

parameterType - The type of payload supported by this resolver

Returns:

a payload resolver that returns the payload of a message when of the given parameterType

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