JAX-RS is command-oriented. It means that a request must be bound to a Java method. To do so, the matching takes multiple parameters of the request into account:
- The patch
- The Accept header
- The Content-Type header
Here is the simplified algorithm for routing:
- Find the class matching the request based on the path (this is a regex-like logic).
- From the class found in step 1, find the method matching the request based on the path. (This is close to step 1 but applied to methods with subresource handling.)
- From the methods found in step 2, find the one that will handle the request based on mime types (Accept/Content-Type headers). This level parses the media types to handle the quality of service options (q, qs, and so on) of the ...