Package org.takes.facets.fallback

Fallback.

See: Description

Interface Summary

Interface	Description
Fallback	Fallback to dispatch an exceptional situation.
RqFallback	Request with an error inside.

Class Summary

Class	Description
FbChain	Fallback chain.
FbEmpty	Empty fallback.
FbFixed	Fallback with a fixed response.
FbLog4j	Fallback that logs all problems through Log4J.
FbSlf4j	Fallback that logs all problems through SFL4J.
FbStatus	Fallback on status code that equals to the provided value.
FbWrap	Fallback wrap.
RqFallback.Fake	Fake implementation, for unit tests mostly.
TkFallback	Fallback.

Package org.takes.facets.fallback Description

Fallback.

Exception handing in the framework is very simple and very intuitive. All you need to do is to wrap your "take" into TkFallback decorator and create a fallback that dispatches exceptions, for example:

 Take take = new TkFallback(
   original_take,
   new FbChain(
     new FbOnStatus(404, new TkHTML("page not found")),
     new FbOnStatus(405, new TkHTML("this method not allowed")),
     new FbFixed(new RsText("oops, some big problem"))
   )
 );

If and when exception occurs, TkFallback will catch it and create an instance of RqFallback. This object will be sent to the encapsulated instance of Fallback. It is recommended to use FbChain to dispatch a request through a series of fallbacks. The first of them who will return some response will stop the chain.

Since:

0.1

Version:

$Id: 70baa5ab7e9f0835a697d57e90e7cb458a891cf5 $

Author:

Yegor Bugayenko ([email protected])