I think that Andrey's point is that he is expecting "while" to have semantics like a "while" construct in Java - discontinue execution if the condition is not met.
This result excludes the case where the "while" is not satisfied but continues. (I'm just trying to help clarify, I don't have any opinion about that expectation) :-) - Dexter Dexter Pratt Director, NDEx project Ideker Lab UCSD / Cytoscape Consortium [email protected] - [email protected] www.ndexbio.org On Wednesday, February 19, 2014 at 2:44 PM, Luca Garulli wrote: > So is it ok, right? > > Lvc@ > > > On 19 February 2014 23:30, Andrey Yesyev <[email protected] > (mailto:[email protected])> wrote: > > Oh, yes I did. Forgot to mention, > > In this case the result is very unexpected > > > > @rid > > @version > > @class > > name > > in_HAS > > out_HAS > > > > > > #12:0 > > (http://localhost:2480/studio/index.html#/database/ePersona/browse/edit/12:0) > > 7 > > Case > > demo > > [1] > > [5] > > > > #13:1 > > (http://localhost:2480/studio/index.html#/database/ePersona/browse/edit/13:1) > > 2 > > Collection > > mysql_import_cc.pcap > > [1] > > > > > > #13:2 > > (http://localhost:2480/studio/index.html#/database/ePersona/browse/edit/13:2) > > 2 > > Collection > > mysql_import_emails.pcap > > [1] > > > > > > #13:3 > > (http://localhost:2480/studio/index.html#/database/ePersona/browse/edit/13:3) > > 2 > > Collection > > telnet_cat_emial_list.pcap > > [1] > > > > > > #13:4 > > (http://localhost:2480/studio/index.html#/database/ePersona/browse/edit/13:4) > > 2 > > Collection > > demo_stream > > [1] > > > > > > > > > > > > So, I see everything BUT gmail_with_attachments.pcap vertex. > > > > > > > > > > On 19 February 2014 16:47, Luca Garulli <[email protected] > > (mailto:[email protected])> wrote: > > > Have you tried: > > > > > > select from ( traverse out_HAS from #12:0 while $depth < 2 and name > > > (http://current.name/) <> 'gmail_with_attachments.pcap') > > > > > > Lvc@ > > > > > > > > > > > > On 19 February 2014 19:12, Andrey Yesyev <[email protected] > > > (mailto:[email protected])> wrote: > > > > Hi there, > > > > > > > > I was playing with traverse and couldn't figure out the logic of WHILE. > > > > This is what I found in docs: > > > > > > > > while (https://github.com/orientechnologies/orientdb/wiki/SQL-Where) > > > > condition to continue the traversing while it's true. Usually it's used > > > > to limit the traversing depth by using $depth < <x> where x is the > > > > maximum level of depth you want to reach. $depth is the first context > > > > variable that reports the depth level during traversal. > > > > Pretty straight forward, but then I tried to query DB > > > > > > > > select from ( traverse out_HAS from #12:0 while $depth < 2) > > > > Got the result > > > > > > > > > > > > @rid > > > > @version > > > > @class > > > > name > > > > in_HAS > > > > out_HAS > > > > > > > > > > > > #12:0 > > > > (http://localhost:2480/studio/index.html#/database/ePersona/browse/edit/12:0) > > > > 7 > > > > Case > > > > demo > > > > [1] > > > > [5] > > > > > > > > #13:0 > > > > (http://localhost:2480/studio/index.html#/database/ePersona/browse/edit/13:0) > > > > 2 > > > > Collection > > > > gmail_with_attachments.pcap > > > > [1] > > > > > > > > > > > > #13:1 > > > > (http://localhost:2480/studio/index.html#/database/ePersona/browse/edit/13:1) > > > > 2 > > > > Collection > > > > mysql_import_cc.pcap > > > > [1] > > > > > > > > > > > > #13:2 > > > > (http://localhost:2480/studio/index.html#/database/ePersona/browse/edit/13:2) > > > > 2 > > > > Collection > > > > mysql_import_emails.pcap > > > > [1] > > > > > > > > > > > > #13:3 > > > > (http://localhost:2480/studio/index.html#/database/ePersona/browse/edit/13:3) > > > > 2 > > > > Collection > > > > telnet_cat_emial_list.pcap > > > > [1] > > > > > > > > > > > > #13:4 > > > > (http://localhost:2480/studio/index.html#/database/ePersona/browse/edit/13:4) > > > > 2 > > > > Collection > > > > demo_stream > > > > [1] > > > > > > > > > > > > > > > > > > > > Which is perfectly correct. > > > > Now I want to stop traversing, as soon as I reach vertex with the > > > > name=gmail_with_attachments.pcap. I assume it should look like this > > > > > > > > select from ( traverse out_HAS from #12:0 while $depth < 2 and > > > > $current.name (http://current.name) <> 'gmail_with_attachments.pcap') > > > > But no, it doesn't work. I'm getting > > > > > > > > No records found. > > > > > > > > What's the problem? > > > > > > > > -Andrey > > > > > > > > > > > > > > > > -- > > > > > > > > --- > > > > You received this message because you are subscribed to the Google > > > > Groups "OrientDB" group. > > > > To unsubscribe from this group and stop receiving emails from it, send > > > > an email to [email protected] > > > > (mailto:orient-database%[email protected]). > > > > > > > > For more options, visit https://groups.google.com/groups/opt_out. > > > > > > -- > > > > > > --- > > > You received this message because you are subscribed to a topic in the > > > Google Groups "OrientDB" group. > > > To unsubscribe from this topic, visit > > > https://groups.google.com/d/topic/orient-database/Fvf-4LibdMs/unsubscribe. > > > To unsubscribe from this group and all its topics, send an email to > > > [email protected] > > > (mailto:orient-database%[email protected]). > > > > > > For more options, visit https://groups.google.com/groups/opt_out. > > > > -- > > > > --- > > You received this message because you are subscribed to the Google Groups > > "OrientDB" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to [email protected] > > (mailto:orient-database%[email protected]). > > For more options, visit https://groups.google.com/groups/opt_out. > > -- > > --- > You received this message because you are subscribed to the Google Groups > "OrientDB" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] > (mailto:[email protected]). > For more options, visit https://groups.google.com/groups/opt_out. -- --- You received this message because you are subscribed to the Google Groups "OrientDB" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
