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From "Alex O'Ree (JIRA)" <juddi-...@ws.apache.org>
Subject [jira] [Commented] (JUDDI-633) Building a Find Qualifiers for comparison operator such as "greater then" and "less than".
Date Fri, 16 Aug 2013 12:13:49 GMT

    [ https://issues.apache.org/jira/browse/JUDDI-633?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13742151#comment-13742151
] 

Alex O'Ree commented on JUDDI-633:
----------------------------------

Avinash, I've already started porting the juddi client to .net. See https://issues.apache.org/jira/browse/JUDDI-567

My opinion is that this should be implemented on the server, this way paging operations would
still function. This however would be a challenge due the fact that tmodel values are stored
as strings.

I've also discussed this same topic in my master's thesis, which discusses improvements to
UDDI. Comparison operators are suggested precisely for storing QoS parameters, such as up
time, throughput, response time, etc. Then a client could ask for implements of service X
that's sorted by response time, or only has a response time less than 100ms or so. I'm going
to go ahead and commit what i have. It compiles, but its not complete

So due to the difficulty of doing this on the server, I'd suggest to use the parse function
to go from the tmodel's string value, to a number, then do your own comparison. The query
to UDDI should probably ask for services or binding templates that have the specific tmodels
that you're using for QoS parameters.
                
> Building a Find Qualifiers for comparison operator such as "greater then" and "less than".
> ------------------------------------------------------------------------------------------
>
>                 Key: JUDDI-633
>                 URL: https://issues.apache.org/jira/browse/JUDDI-633
>             Project: jUDDI
>          Issue Type: New Feature
>          Components: juddi-tomcat
>    Affects Versions: 3.1.5
>         Environment: Windows 8 Pro.
> Tomcat 7.0
> MySQL 5.6
>            Reporter: Avinash Ganpat Mahajan
>            Assignee: Kurt T Stam
>              Labels: features
>             Fix For: 3.1.5
>
>   Original Estimate: 1,224h
>  Remaining Estimate: 1,224h
>
> I am trying to implement QoS aware UDDI searching mechanism.
> As QoS attributes are stored in KeyedReferences so needs to have some qualifiers to give
flexibility for searching such as for cost.

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