[MarkLogic Dev General] Facets on properties in ML4.2

Rajamani.Marimuthu at cognizant.com Rajamani.Marimuthu at cognizant.com
Fri Jan 8 04:32:37 PST 2016


HI Geert,

And one more thing, The given property elements are not configured for element range indexes.  So, in that case this  cts:element-values functions will not work .this function requires given element should range indexed . Without that how will I implement .


By
Raja >>>

From: general-bounces at developer.marklogic.com [mailto:general-bounces at developer.marklogic.com] On Behalf Of Geert Josten
Sent: Friday, January 08, 2016 5:30 PM
To: MarkLogic Developer Discussion
Subject: Re: [MarkLogic Dev General] Facets on properties in ML4.2

Hi Raja,

Yes, I think so, provided custom constraints were supported in that version. Here an example:

http://docs.marklogic.com/guide/search-dev/search-api#id_66428

It makes uses of geospatial lexicon 'values' (boxes), but just replace cts:element-pair-geospatial-boxes in start-facet with cts:element-values (with a properties options), and you should be pretty close to what you are looking for. Then for the actual searching, you need to change parse-structured to return a cts:element-range-query..

Kind regards,
Geert

From: <general-bounces at developer.marklogic.com<mailto:general-bounces at developer.marklogic.com>> on behalf of "Rajamani.Marimuthu at cognizant.com<mailto:Rajamani.Marimuthu at cognizant.com>" <Rajamani.Marimuthu at cognizant.com<mailto:Rajamani.Marimuthu at cognizant.com>>
Reply-To: MarkLogic Developer Discussion <general at developer.marklogic.com<mailto:general at developer.marklogic.com>>
Date: Friday, January 8, 2016 at 12:50 PM
To: "general at developer.marklogic.com<mailto:general at developer.marklogic.com>" <general at developer.marklogic.com<mailto:general at developer.marklogic.com>>
Subject: Re: [MarkLogic Dev General] Facets on properties in ML4.2

Hi Geert,

Am aware about that fragment-scope option in search constraints ,but it's available from ML 5 onwards . So, no luck from that. Is that possible to use custom constraint to achieve my requirement .

By
Raja >>>

From: general-bounces at developer.marklogic.com<mailto:general-bounces at developer.marklogic.com> [mailto:general-bounces at developer.marklogic.com] On Behalf Of Geert Josten
Sent: Friday, January 08, 2016 3:29 PM
To: MarkLogic Developer Discussion
Subject: Re: [MarkLogic Dev General] Facets on properties in ML4.2

Hi Raja,

If I am not mistaken, ML 4.2 supports the search API, with functions like search:search and such. You can define search constraints in your search options, and provide a fragment-scope in them. You can provide that on top-level, like shown here: http://docs.marklogic.com/guide/search-dev/appendixa#id_92359, but also within constraints, either directly below the constraint element, or within the range element.

I am not sure whether fragment-scope was supported in the early version of Search API in 4.2 as it was still pretty new back then, but that is how you would do it with MarkLogic 8.

Kind regards,
Geert

From: <general-bounces at developer.marklogic.com<mailto:general-bounces at developer.marklogic.com>> on behalf of "Rajamani.Marimuthu at cognizant.com<mailto:Rajamani.Marimuthu at cognizant.com>" <Rajamani.Marimuthu at cognizant.com<mailto:Rajamani.Marimuthu at cognizant.com>>
Reply-To: MarkLogic Developer Discussion <general at developer.marklogic.com<mailto:general at developer.marklogic.com>>
Date: Friday, January 8, 2016 at 9:32 AM
To: "general at developer.marklogic.com<mailto:general at developer.marklogic.com>" <general at developer.marklogic.com<mailto:general at developer.marklogic.com>>
Subject: Re: [MarkLogic Dev General] Facets on properties in ML4.2

Hi Justin,

  Thanks for the reply mail . Yes we are using ML4.2 version but, we are preparing the migration from 4.2 to latest 8.* version very soon.
   But, right now - we don't have any document content change plan- so I need to implement the expected facet on properties files. Am really clueless about this custom constraint on properties for facets.
  So, are you saying - value constraint can help to create facets on properties . Here "envelop original content and properties" meant - am I want to save both in single XML file. Could you please give little more points about this implementation .

Or if that is not possible with existing content and properties in ML4.2 then what is the alternative method for the same . Kindly appreciate your timely support .

By
Raja >>>

From:general-bounces at developer.marklogic.com<mailto:general-bounces at developer.marklogic.com> [mailto:general-bounces at developer.marklogic.com] On Behalf Of Justin Makeig
Sent: Thursday, January 07, 2016 11:20 PM
To: MarkLogic Developer Discussion
Subject: Re: [MarkLogic Dev General] Facets on properties in ML4.2

Are you really running MarkLogic 4.2? This is ancient. You should plan to upgrade as soon as feasible. It will be very difficult for the community or MarkLogic Support to assist you with this version. The most recent version is 8.0-4.

It is possible to facet on properties. cts:values has an option that allows you include values from properties fragments. (Or cts:element-values in 4.2.) However, in general, I'd advise against properties fragments. Because they are separate from document fragments, properties require extra work to join at query time. If you don't want to change/enrich your actual document content you can use an envelope to "wrap" your documents:

<my:envelope xmlns:my="...">
  <my:meta>...</my:meta><!-- <-- properties go here -->
  <my:body>...</my:body><!-- <-- organically document contents goes here -->
</my:envelope>

This has the advantage of segregating the metadata (properties) and data, but also colocates them in the same fragment, reducing the work that queries will have to do.

Justin


On Jan 7, 2016, at 1:35 AM, Rajamani.Marimuthu at cognizant.com<mailto:Rajamani.Marimuthu at cognizant.com> wrote:

Hi Team,

  We are trying to implement facets from various property elements in ML4.2 version . Is that possible. Like

  Search term :  "sample" present in content body
  Facets : on some properties like : author, geography   etc. from document properties . Kindly appreciate if have some sample custom constraint or similar options

By
Raja >>>
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