spring-boot-data-mongodb | Spring Boot CRUD Rest APIs with Spring Data MongoDB | REST library
kandi X-RAY | spring-boot-data-mongodb Summary
kandi X-RAY | spring-boot-data-mongodb Summary
Spring Boot CRUD Rest APIs with Spring Data MongoDB
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QUESTION
I have a Spring Cloud Stream application that receives events from RabbitMQ using the Rabbit Binder. My application can be summarized as this:
...ANSWER
Answered 2018-Jun-11 at 13:10There are several issues here.
- Transactions are not required for acknowledging messages
- Reactor-based
@StreamListener
methods are invoked exactly once, just to set up theFlux
so@Transactional
on that method is meaningless - messages then flow through the flux so anything pertaining to individual messages has to be done within the context of the flux. - Spring Transactions are bound to the thread - Reactor is non-blocking; the message will be acked at the first handoff.
Yes, you would need to use manual acks; presumably on the result of the mongodb store operation. You would probably need to use Flux>
so you would have access to the channel and delivery tag headers.
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Install spring-boot-data-mongodb
You can use spring-boot-data-mongodb like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the spring-boot-data-mongodb component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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