Package io.fluxcapacitor.javaclient.tracking.handling

Interface HandlerInterceptor

All Superinterfaces:

HandlerDecorator

All Known Implementing Classes:

AuthenticatingInterceptor, DataProtectionInterceptor, DisableMetrics, ErrorReportingInterceptor, HandlerMonitor, SchedulingInterceptor, ValidatingInterceptor

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 HandlerInterceptor
extends HandlerDecorator

Mechanism that enables modification of a message before it is handled by a handler. A HandlerInterceptor can also be used to monitor handled messages, block message handling altogether, and/or inspect or modify the return value of a handler.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	HandlerInterceptor.InterceptedHandler

Nested classes/interfaces inherited from interface io.fluxcapacitor.javaclient.tracking.handling.HandlerDecorator

HandlerDecorator.MergedDecorator

Field Summary

Fields inherited from interface io.fluxcapacitor.javaclient.tracking.handling.HandlerDecorator

noOp

Method Summary

Modifier and Type	Method	Description
Function<DeserializingMessage,Object>	interceptHandling(Function<DeserializingMessage,Object> function, HandlerInvoker invoker)	Intercepts a message before it's handled.
default Handler<DeserializingMessage>	wrap(Handler<DeserializingMessage> handler)

Methods inherited from interface io.fluxcapacitor.javaclient.tracking.handling.HandlerDecorator

andThen

Method Details

interceptHandling

Function<DeserializingMessage,Object> interceptHandling(Function<DeserializingMessage,Object> function,
 HandlerInvoker invoker)

Intercepts a message before it's handled. The underlying handler can be invoked using the given function.

Before invoking the handler it is possible to inspect or modify the message. It is also possible to block a message simply by returning a function that returns without invoking the handler.

After invoking the handler it is possible to inspect or modify the response.

The given invoker contains information about the underlying handler.

wrap

default Handler<DeserializingMessage> wrap(Handler<DeserializingMessage> handler)

Specified by:

wrap in interface HandlerDecorator