89thAirhacksQ&A.md

89thAirhacksQ&A.md

Ask questions and see you at August, 2nd, 2021 8pm CEST: https://youtube.com/c/bienadam/

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Please keep the questions Jakarta EE-stic. Means: as short and as concise as only possible. Feel free to ask several, shorter questions. Upcoming airhacks.tv events are also going to be announced at meetup.com/airhacks

I am working on a new project and would like to use Payara Micro, JPA, and JSF. I found an article you wrote on B-C-E called "Simplicity by Design" for Java EE 6 that is just what I'm looking for. What would be different today using Java EE 8 or Jarkarta EE 9.X ?

Thanks

When using microservices along with a rest client, it is suggested that each service is its own domain object and has its own database. If that is the case, then how would JPA work with mappings like OneToMany, ManyToOne, OneToOne? I've seen suggestions that a main database be used that would push views out to the other databases, but that seems to complicate the backend database server(s). Is there a specific technique for Java EE and microservices?

Thanks

Hi Adam,

How to handle large file upload to JAX-RS? In my project when I try to upload large file from a service to a Quarkus backend (using resteasy client in that service), I am getting exceptions:

org.apache.http.impl.execchain.RetryExec execute
INFO: I/O exception (java.net.SocketException) caught when processing request to {}->http://localhost:8080: Software caused connection abort: socket write error
...
javax.ws.rs.ProcessingException: RESTEASY004655: Unable to invoke request: java.net.SocketException: Software caused connection abort: socket write error
...
Caused by: java.net.SocketException: Software caused connection abort: socket write error

This only happens while trying to upload kind of large files (over >= 10 MB ). When I upload small files, it works just fine!

Thanks