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https://issues.apache.org/jira/browse/CHAIN-98?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13691275#comment-13691275
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Jonas Sprenger commented on CHAIN-98:
-------------------------------------

I added a patch for refactoring to the Processing enum. 

Some comments on that patch: 
1. ChainBase executes commands until COMPLETE OR ABORTED is returned by a 
command
2. Test Classes switched to Prcoessing return values
3. All relevant asserts switched to 'assertEquals' instead of assertTrue/False 
4. All comments regarding 'true' or 'false' regarding Processing values have 
been adjusted
5. I added to 'FIXME' comments to mark locations where a returning null instead 
of a processing value could be an issue, i.e. DispatchCommand and 
DispatchLookupCommand.

                
> Refactor command interface and base Implementations to enumeration to 
> represent states
> --------------------------------------------------------------------------------------
>
>                 Key: CHAIN-98
>                 URL: https://issues.apache.org/jira/browse/CHAIN-98
>             Project: Commons Chain
>          Issue Type: Task
>    Affects Versions: 2.0
>            Reporter: Jonas Sprenger
>             Fix For: 2.0
>
>
> Base implementations should return the constants CONTINUE_PROCESSING or 
> PROCESSING_COMPLETE instead of returning true or false

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