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From "Simone Tripodi (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SANDBOX-358) Early return/termination for graph visit
Date Fri, 20 Jan 2012 08:00:49 GMT

    [ https://issues.apache.org/jira/browse/SANDBOX-358?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13189681#comment-13189681
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Simone Tripodi commented on SANDBOX-358:
----------------------------------------

Ciao Claudio!

go ahead on changing all method signatures in {{GraphVisitHandler}} from {{void}} to {{boolean}},
this is the cleaner solution I can see ATM.

Thanks in advance!!!
                
> Early return/termination for graph visit
> ----------------------------------------
>
>                 Key: SANDBOX-358
>                 URL: https://issues.apache.org/jira/browse/SANDBOX-358
>             Project: Commons Sandbox
>          Issue Type: Improvement
>          Components: Graph
>            Reporter: Claudio Squarcella
>            Priority: Minor
>              Labels: graph, visit, visithandler
>   Original Estimate: 72h
>  Remaining Estimate: 72h
>
> Hello,
> the current implementations in the class {{Visit}} (package {{org.apache.commons.graph.visit}})
do not include the possibility to stop the search prematurely. That would be more natural
(and faster) for many kinds of search, e.g. when looking for the first occurrence of a specific
pattern (vertex, path with certain features, etc).
> The easiest solution: changing all method signatures in {{GraphVisitHandler}} from {{void}}
to {{boolean}}, forcing the handler to answer the question: _should I continue?_ 
> I understand semantics get a bit entangled (well, not with an appropriate documentation!),
so I am open to more verbose options: e.g. a method {{isSearchComplete}} to call after every
step... but that would only be more verbose, wouldn't it?
> Waiting for feedback and ready to patch :-)
> Claudio

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