[MarkLogic Dev General] MLS map:map API

[Geert Josten]

Hi Deepak,

I can't tell for sure whether the argument to map:map is being passed as reference, though I would expect so. That should not really matter though; the map library does not serialize to XML on the backend as far as I know. To my knowledge it creates a hash table in memory which therefor only survives throughout the transaction. It works well if you have upto a few thousand items and use the map at least a few times during the transaction. The more you use it, the more benefit you have of it. If you have more than a few thousand items, use the lookup in every request, and/or only a few times each time, then it is most likely more efficient to store each lookup value as a separate doc in the database, add a range index on it and use cts library to query it..

Kind regards,
Geert

>


drs. G.P.H. (Geert) Josten
Consultant


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> From: general-bounces at developer.marklogic.com
> [mailto:general-bounces at developer.marklogic.com] On Behalf Of
> deepak mohan
> Sent: zondag 28 maart 2010 17:39
> To: general at developer.marklogic.com
> Subject: [MarkLogic Dev General] MLS map:map API
>
> HI TEAM,
>
> we are developing the web application using xqmvc to acheive
> MVC. we use the map:map API FREQUENTLY across the layers. I
> believe the api will serialize and deserialize the entries as
> xml behind the screen. Please clarify me, how the ML uses the
> map document during method invocation (pass by value (new map
> document) or pass by reference(hopefully map-doc-uri)). And
> also please tell me the pros and cons of using maps..
>
> looking for the responses...
>
> THANKS,
> deepak mohanakrishnan.
>
>
>
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