Package org.axonframework.messaging.eventhandling.processing.streaming.token.annotation

Class TrackingTokenParameterResolverFactory

java.lang.Object

org.axonframework.messaging.eventhandling.processing.streaming.token.annotation.TrackingTokenParameterResolverFactory

All Implemented Interfaces:

ParameterResolverFactory

public class TrackingTokenParameterResolverFactory
extends Object
implements ParameterResolverFactory

Implementation of a ParameterResolverFactory that resolves the TrackingToken from the ProcessingContext whenever it's available.

Since:

3.0.0

Author:

Allard Buijze

Constructor Summary

Constructors

Constructor	Description
TrackingTokenParameterResolverFactory()

Method Summary

Modifier and Type	Method	Description
ParameterResolver<TrackingToken>	createInstance(Executable executable, Parameter[] parameters, int parameterIndex)	If available, creates a ParameterResolver instance that can provide a parameter of type parameterType for a given message.

Methods inherited from class java.lang.Object

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

Constructor Details

TrackingTokenParameterResolverFactory

public TrackingTokenParameterResolverFactory()

Method Details

createInstance

@Nullable
public ParameterResolver<TrackingToken> createInstance(@Nonnull
 Executable executable,
 @Nonnull
 Parameter[] parameters,
 int parameterIndex)

Description copied from interface: 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 interface ParameterResolverFactory

Parameters:

executable - The executable (constructor or method) to inspect.

parameters - The parameters on the executable to inspect.

parameterIndex - The index of the parameter to return a ParameterResolver for.

Returns:

A suitable ParameterResolver, or null if none is found.