lucene-java-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Michael McCandless <luc...@mikemccandless.com>
Subject Re: what is the offsets and payload in DocsAndPositionsEnum for ??
Date Mon, 19 Nov 2012 14:14:42 GMT
A new postings format would be tricky because you have new attributes
you want to index.

The DocsAndPositionsEnum does have an attributes source, but this is
not well explored, and there are known problems (they can't be easily
merged in the composite reader case).

So that's why I suggested packing your information into a payload ...

Mike McCandless

http://blog.mikemccandless.com

On Sun, Nov 18, 2012 at 8:33 PM, wgggfiy <wuqiu.reg@qq.com> wrote:
> thx, mike.
> about the 3th question, "encode them all into the payload" is better than
> "a new postings format with the codec" ??
> I mean replace the orginal posting item (position, startOffset, endOffset,
> payload) with my own inverted item such as
> class TestPostingItem
> {
>         int termId;
>         long startOffset;
>         long endOffset;
>         float score;
>         int segId;
>         long timeStamp;
> }
> ?
>
>
>
>
> --
> View this message in context: http://lucene.472066.n3.nabble.com/what-is-the-offsets-and-payload-in-DocsAndPositionsEnum-for-tp4020933p4020968.html
> Sent from the Lucene - Java Users mailing list archive at Nabble.com.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
>

---------------------------------------------------------------------
To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
For additional commands, e-mail: java-user-help@lucene.apache.org


Mime
View raw message