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From "Craig Russell (JIRA)" <j...@apache.org>
Subject [jira] Updated: (JDO-405) recursion-depth - fetching the whole graph with 0 or -1?
Date Thu, 10 Aug 2006 23:14:15 GMT
     [ http://issues.apache.org/jira/browse/JDO-405?page=all ]

Craig Russell updated JDO-405:
------------------------------

    Fix Version/s: JDO 2 maintenance release 1

> recursion-depth - fetching the whole graph with 0 or -1?
> --------------------------------------------------------
>
>                 Key: JDO-405
>                 URL: http://issues.apache.org/jira/browse/JDO-405
>             Project: JDO
>          Issue Type: Bug
>    Affects Versions: JDO 2 final
>            Reporter: Ilan Kirsh
>             Fix For: JDO 2 maintenance release 1
>
>
> In page 124: "A value of -1 means that the recursion-depth is not limited by traversing
this field."
> In page 127: "A recursion-depth of 0 will fetch the whole graph of instances reachable
from this field"
> Is there a difference between these two?
> In addition, I think that -1 / 0 as a default might be better than 1 it terms of performance,
because tracking such cycles has some overhead, which we might not want to pay for most fields
in which this feature is not needed (and MaxFetchDepth is sufficient).

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