Package org.axonframework.extension.spring.config.annotation

Class SpringBeanParameterResolverFactory

java.lang.Object

org.axonframework.extension.spring.config.annotation.SpringBeanParameterResolverFactory

All Implemented Interfaces:

ParameterResolverFactory, org.springframework.beans.factory.Aware, org.springframework.context.ApplicationContextAware

public class SpringBeanParameterResolverFactory
extends Object
implements ParameterResolverFactory, org.springframework.context.ApplicationContextAware

ParameterResolverFactory implementation that resolves parameters in the Spring Application Context. A parameter can be resolved as a Spring bean if there is exactly one bean assignable to the parameter type. If multiple beans are available the desired one can be designated with a Qualifier annotation on the parameter. By absence of a Qualifier annotation the bean marked as primary will be chosen. Note that when multiple beans are marked as primary, either one can be selected as parameter value.

Since:

2.1

Author:

Allard Buijze

Constructor Summary

Constructors

Constructor	Description
SpringBeanParameterResolverFactory()	Default constructor, which relies on Spring to inject the application context.
SpringBeanParameterResolverFactory(org.springframework.context.ApplicationContext applicationContext)	Convenience constructor to use when an instance is not managed by Spring, but an application context is available.

Method Summary

Modifier and Type	Method	Description
ParameterResolver<?>	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.
void	setApplicationContext(org.springframework.context.ApplicationContext applicationContext)

Methods inherited from class java.lang.Object

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

Constructor Details

SpringBeanParameterResolverFactory

public SpringBeanParameterResolverFactory()

Default constructor, which relies on Spring to inject the application context.

SpringBeanParameterResolverFactory

public SpringBeanParameterResolverFactory(org.springframework.context.ApplicationContext applicationContext)

Convenience constructor to use when an instance is not managed by Spring, but an application context is available.

Parameters:

applicationContext - The application context providing access to beans that may be used as parameters

Method Details

createInstance

@Nullable
public ParameterResolver<?> 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.

setApplicationContext

public void setApplicationContext(org.springframework.context.ApplicationContext applicationContext)
                           throws org.springframework.beans.BeansException

Specified by:

setApplicationContext in interface org.springframework.context.ApplicationContextAware

Throws:

org.springframework.beans.BeansException