org.axonframework.axonserver.connector

Interface TargetContextResolver<T extends Message<?>>

Type Parameters:

T - the type of Message to resolve the context for

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface TargetContextResolver<T extends Message<?>>

Interface towards a mechanism that is capable of resolving the context name to which a Message should be routed. This is used in multi-context situations, where certain Messages need to be routed to another "Bounded Context" than the one the application itself is registered in.

Since:

4.2

Author:

Allard Buijze

Method Summary

Modifier and Type	Method and Description
static TargetContextResolver<Message<?>>	noOp() Returns a no-op TargetContextResolver.
default TargetContextResolver<T>	orElse(TargetContextResolver<? super T> other) Returns a TargetContextResolver that uses this instance to resolve a context for a given message and if it returns null, returns the results of the other resolver instead.
String	resolveContext(T message) Provides the context to which a message should be routed.

Method Detail

resolveContext

String resolveContext(T message)

Provides the context to which a message should be routed.

Parameters:

message - the message to resolve the context for

Returns:

the name of the context this message should be routed to or null if the message does not specify any context

orElse

default TargetContextResolver<T> orElse(TargetContextResolver<? super T> other)

Returns a TargetContextResolver that uses this instance to resolve a context for a given message and if it returns null, returns the results of the other resolver instead.

Parameters:

other - the resolver that will provide a context if this doesn't return one

Returns:

a TargetContextResolver that resolves the context from either this, or the other

noOp

static TargetContextResolver<Message<?>> noOp()

Returns a no-op TargetContextResolver. This will default to returning null on any Message provided.

Returns:

a no-op TargetContextResolver. This will default to returning null on any Message provided