Package org.axonframework.messaging.queryhandling

Class QueryUpdateEmitterParameterResolverFactory

java.lang.Object

org.axonframework.messaging.queryhandling.QueryUpdateEmitterParameterResolverFactory

All Implemented Interfaces:

ParameterResolverFactory

@Internal
public class QueryUpdateEmitterParameterResolverFactory
extends Object
implements ParameterResolverFactory

ParameterResolverFactory that ensures the QueryUpdateEmitter is resolved in the context of the current ProcessingContext.

For any message handler that declares this parameter, it will call QueryUpdateEmitter.forContext(ProcessingContext) to create the appender.

Since:

5.0.0

Author:

Steven van Beelen

Constructor Summary

Constructors

Constructor	Description
QueryUpdateEmitterParameterResolverFactory()

Method Summary

Modifier and Type	Method	Description
@Nullable ParameterResolver<QueryUpdateEmitter>	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

QueryUpdateEmitterParameterResolverFactory

public QueryUpdateEmitterParameterResolverFactory()

Method Details

createInstance

public @Nullable ParameterResolver<QueryUpdateEmitter> createInstance(Executable executable,
 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.