Package io.fluxcapacitor.javaclient.tracking.handling

Class InputParameterResolver

java.lang.Object

io.fluxcapacitor.javaclient.tracking.handling.InputParameterResolver

All Implemented Interfaces:

ParameterResolver<Object>

public class InputParameterResolver
extends Object
implements ParameterResolver<Object>

Resolves handler method parameters by simply injecting the input if the parameter type is assignable from the input type.

Constructor Summary

Constructors

Constructor	Description
InputParameterResolver()

Method Summary

Modifier and Type	Method	Description
boolean	matches(Parameter parameter, Annotation methodAnnotation, Object value)	Indicates whether the resolved value is compatible with the declared parameter type.
Function<Object,Object>	resolve(Parameter parameter, Annotation methodAnnotation)	Resolves a Parameter of a handler method into a value function based on the given message.

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.fluxcapacitor.common.handling.ParameterResolver

determinesSpecificity, filterMessage

Constructor Details

InputParameterResolver

public InputParameterResolver()

Method Details

resolve

public Function<Object,Object> resolve(Parameter parameter,
 Annotation methodAnnotation)

Description copied from interface: ParameterResolver

Resolves a Parameter of a handler method into a value function based on the given message.

If the parameter cannot be resolved by this resolver and ParameterResolver.matches(java.lang.reflect.Parameter, java.lang.annotation.Annotation, M) is not implemented, this method must return null.

Specified by:

resolve in interface ParameterResolver<Object>

Parameters:

parameter - the parameter to resolve

methodAnnotation - the annotation present on the handler method (e.g., @HandleEvent)

Returns:

a function that takes a message and returns a value to be injected into the method parameter, or null if the parameter cannot be resolved and ParameterResolver.matches(java.lang.reflect.Parameter, java.lang.annotation.Annotation, M) is not implemented.

matches

public boolean matches(Parameter parameter,
 Annotation methodAnnotation,
 Object value)

Description copied from interface: ParameterResolver

Indicates whether the resolved value is compatible with the declared parameter type.

This method helps determine whether the parameter can be injected for a given message. It first invokes ParameterResolver.resolve(java.lang.reflect.Parameter, java.lang.annotation.Annotation) and then verifies that the returned value (if any) is assignable to the parameter type.

Specified by:

matches in interface ParameterResolver<Object>

Parameters:

parameter - the parameter being checked

methodAnnotation - the annotation on the handler method

value - the message instance to use for resolution

Returns:

true if the parameter can be resolved and assigned to, false otherwise