[jax-rs-spec users] [jsr339-experts] Async API Usage Guidance

From: Jan Algermissen <>
Date: Sun, 30 Sep 2012 22:30:50 +0200


based on the implementation experience with the Async API to date, can you provide advice on what a developer should consider a 'long running operation'?

What operations are usually long running enough to see a server performance or capacity gain when switching to the async API?

File IO?
JPA data read?
JPA data write?
Upstream HTTP request?