org.axonframework.common.annotation
Interface ParameterResolver<T>

Type Parameters:

T - The type of parameter returned by this resolver

All Known Implementing Classes:

CurrentUnitOfWorkParameterResolverFactory, FixedValueParameterResolver

public interface ParameterResolver<T>

Interface for a mechanism that resolves handler method parameter values from a given Message.

Since:

2.0

Author:

Allard Buijze

Method Summary

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

Method Detail

resolveParameterValue

T resolveParameterValue(Message message)

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

Parameters:

message - The message to resolve the value from

Returns:

the parameter value for the handler

matches

boolean matches(Message message)

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

Parameters:

message - The message to evaluate

Returns:

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