XPath expressions are evaluated against all documents in a MarkLogic database:
/foo/bar
Will return all elements bar that are children of documents with a root node of
foo.
collection("my-collection")/foo/bar
Will return all elements bar that are children of documents with a root node of
foo that belong to the collection "my-collection."
xdmp:directory("/my-directory/","infinity")/foo/bar
Will return all elements bar that are children of documents with a root node of
foo that are in a directory called "/my-directory/" or any of its descendent
directories.
One difference between cts:search() and XPath is the ordering of documents.
XPath returns documents in database order, whereas cts:search() returns
documents in relevance order. It is possible to order your expressions by other
values, but to do that you will need a FLWOR expression.
Finally, you can add cts:query constraints to your XPath expressions using
cts:contains():
xdmp:directory("/my-directory/","infinity")/foo/bar[cts:contains(.,cts:and-query(("blue","red")))]
Will return all elements bar that are children of documents with a root node of
foo that contain the words "red" and "blue" that are in a directory called
"/my-directory/" or any of its descendent directories. Results will be returned
in database order.
Hope this helps.
Kelly
Message: 3
Date: Mon, 18 May 2009 20:38:23 +0900
From: "Yasumasa Shigemoto" <[email protected]>
Subject: [MarkLogic Dev General] How to search plural documents by
using XPath.
To: <[email protected]>
Message-ID: <7d68896c51664e35b4ad353578276...@fbio001742bf1332>
Content-Type: text/plain; format=flowed; charset="iso-2022-jp";
reply-type=original
Hi all,
I have used MarkLogic for two weeks, and I have managed to use XQuery
against one XML document. And I could also use cts:search against plural XML
documents. However I would like to search against plural documents by using
XPath. Can I do it by using both cts:search and XQuery? If yes, could you
tell me the examples of XQuery and XML documents?
Thanks and regards,
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