The basic idea seems sound, but I think you can simplify that query a
bit. For one thing, the *:* clauses can be removed in a few places:
also if you index an explicit null value you won't need them at all; for
visiblefrom, if you don't have a from time, use 0, for visibleto, if you
don't have a to time, use maxlong.
-Mike
On 1/12/15 4:23 AM, Clemens Wyss DEV wrote:
I'll add/start with my proposal ;)
Document-meta fields:
+ visiblefrom [long]
+ visibleto [long]
Query or query filter:
(*:* -visiblefrom:[* TO *] AND -visibleto:[* TO *])
OR (*:* -visiblefrom:[* TO *] AND visibleto:[ <now in ms> TO *])
OR (*:* -visibleto:[ * TO *] AND visiblefrom:[* TO <now in ms>])
OR ( visiblefrom:[* TO <now in ms>] AND visibleto:[ <now in ms> TO *])
-----Ursprüngliche Nachricht-----
Von: Clemens Wyss DEV [mailto:clemens...@mysign.ch]
Gesendet: Montag, 12. Januar 2015 09:40
An: java-user@lucene.apache.org
Betreff: howto: handle temporal visibility of a document?
We have documents that are not always visible (visiblefrom-visibleto). In order
to not have to query the originating object of the document whether it is
currently visible (after the query), we'd like to put metadata into the
documents, so that the visibility can be determined at query-time (by the query
itself or a query filter). Any suggestions on how to index and query this
metadata?
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