[jira] [Commented] (TINKERPOP3-619) select should not throw

["Matt Frantz (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TINKERPOP3-619?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14486342#comment-14486342 ] 

Matt Frantz commented on TINKERPOP3-619:
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Another reasonable alternative is to stop traversal, e.g. raise {{NoSuchElementException}}.

> select should not throw
> -----------------------
>
>                 Key: TINKERPOP3-619
>                 URL: https://issues.apache.org/jira/browse/TINKERPOP3-619
>             Project: TinkerPop 3
>          Issue Type: Improvement
>            Reporter: Matt Frantz
>
> Rather than raise {{IllegalArgumentException}}, if {{select}} cannot find the label, it should return {{null}}.  This is preferable because of the difficulty of dealing with exceptions during traversal.  It is not always indicative of a static flaw in the traversal, since conditional logic in the traversal may bypass certain {{as}} steps.



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