Difference between revisions of "GxRest/GxJRS/Responses"
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=== What are Code Exceptions === | === What are Code Exceptions === | ||
| − | Code Exceptions model an approach to simplify and uniform the handling of exceptions (in the Java sense) within a RESTful or REST-like services. Instead of creating separate classes for each exception type, the idea behind CodeException is to use a single, system-wide exception class. And make it extend WebApplicationException that in turn extends RuntimeException. | + | Code Exceptions model an approach to simplify and uniform the handling of exceptions (in the Java sense) within a RESTful or REST-like services. Instead of creating separate classes for each exception type, the idea behind CodeException is to use a single, system-wide exception class. And make it extend <code lang="Java">WebApplicationException</code> (from <code lang="Java">javax.ws.rs</code>) that in turn extends <code lang="Java">RuntimeException</code>. |
Major advantages of CodeException are: | Major advantages of CodeException are: | ||
Revision as of 17:20, 4 January 2018
What are Code Exceptions
Code Exceptions model an approach to simplify and uniform the handling of exceptions (in the Java sense) within a RESTful or REST-like services. Instead of creating separate classes for each exception type, the idea behind CodeException is to use a single, system-wide exception class. And make it extend WebApplicationException (from javax.ws.rs) that in turn extends RuntimeException.
Major advantages of CodeException are:
- abstract over the response returned by a REST resource method
- provide a single (and self-documented) point where to declare error codes and messages returned by the webapp
- reduce the class count in a project (not to mention in a system)
- simplify the method declaration (RuntimeExceptions do not need to be declared)
- simplify the client code that manages only the error codes it is capable to handle
- remove the need to declare exceptions that sometimes aren’t going to be handled anyway.
