org.axonframework.commandhandling.annotation

Class CurrentUnitOfWorkParameterResolverFactory

java.lang.Object

org.axonframework.common.annotation.ParameterResolverFactory

org.axonframework.commandhandling.annotation.CurrentUnitOfWorkParameterResolverFactory

All Implemented Interfaces:

ParameterResolver

public class CurrentUnitOfWorkParameterResolverFactory
extends ParameterResolverFactory
implements ParameterResolver

ParameterResolverFactory that add support for the UnitOfWork parameter type in annotated handlers.

Since:

2.0

Author:

Allard Buijze

Constructor Summary

Constructors

Constructor and Description
CurrentUnitOfWorkParameterResolverFactory()

Method Summary

Methods

Modifier and Type	Method and Description
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.
boolean	matches(Message message) Indicates whether this resolver is capable of providing a value for the given message.
Object	resolveParameterValue(Message message) Resolves the parameter value to use for the given message, or null if no suitable parameter value can be resolved.
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

CurrentUnitOfWorkParameterResolverFactory

public CurrentUnitOfWorkParameterResolverFactory()

Method Detail

createInstance

public 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

resolveParameterValue

public Object resolveParameterValue(Message message)

Description copied from interface: ParameterResolver

Resolves the parameter value to use for the given message, or null if no suitable parameter value can be resolved.

Specified by:

resolveParameterValue in interface ParameterResolver

Parameters:

message - The message to resolve the value from

Returns:

the parameter value for the handler

matches

public boolean matches(Message message)

Description copied from interface: ParameterResolver

Indicates whether this resolver is capable of providing a value for the given message.

Specified by:

matches in interface ParameterResolver

Parameters:

message - The message to evaluate

Returns:

true if this resolver can provide a value for the message, otherwise false

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