Re: [Exist-open] Indexing Namepsaces??

[Joe W. <jo...@gm...>]

Hi Sidharth,

> How can i put a search index on <meta:notes> elements in the xml file. I
> mean what should i add into the collection.xconf and search.xq file ?

First, I assume that you want a Lucene index -- i.e. you want to be
able to do fulltext, keyword-style searches.  (This is in contrast to
some other indexes, as described in the indexing documentation.)
You'll want to apply a Lucene index to the meta:notes element:

<collection xmlns="http://exist-db.org/collection-config/1.0">
    <index xmlns:meta="http://morphml.org/metadata/schema">
        <lucene>
            <analyzer
class="org.apache.lucene.analysis.standard.StandardAnalyzer"/>
            <create qname="meta:index"/>
        </lucene>
    </index>
</collection>

Note that the meta namespace is declared with an @xmlns attribute on
the <index> element, as recommended in
http://www.exist-db.org/indexing.html#N103FC, under the section
titled, "Namespaces":

  "If the document to be indexed uses namespaces, you should add an
xmlns attribute for each of the required namespaces to the <index>
element."

With this index, you are free to create XQuery search services with
queries like:

  declare namespace meta="http://morphml.org/metadata/schema";
  <hits>{
    for $hit in //meta:notes[ft:query(., 'network')]
    return
      <hit>{$hit}</hit>
  }</hits>

For more on Lucene query syntax, see http://www.exist-db.org/lucene.html.

Cheers,
Joe