org.springframework.cloud.stream.binder

Interface PollableSource<H>

Type Parameters:

H - the handler type to process the result of the poll.

All Known Subinterfaces:

PollableMessageSource

All Known Implementing Classes:

DefaultPollableMessageSource

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 PollableSource<H>

A mechanism to poll a consumer.

Since:

2.0

Author:

Gary Russell

Method Summary

Modifier and Type	Method and Description
boolean	poll(H handler) Poll the consumer.
default boolean	poll(H handler, org.springframework.core.ParameterizedTypeReference<?> type) Poll the consumer and convert the payload to the type.

Method Detail

poll

boolean poll(H handler)

Poll the consumer.

Parameters:

handler - the handler.

Returns:

true if a message was handled.

poll

default boolean poll(H handler,
                     org.springframework.core.ParameterizedTypeReference<?> type)

Poll the consumer and convert the payload to the type.

Parameters:

handler - the handler.

type - the type.

Returns:

true if a message was handled.