Thanks for your help, Jorg.
I'd already gotten the similarity and analysis part to work, without using
a plugin.
For analysis, I used the builtin delimited_payload_tokenizer.
For similarity, I used a custom similarity (from my Lucene code) and just
stuck it as a jar file into the lib folder of my ES installation, and
restarted ES.
With this approach, I was able to specify per-field similarity and
per-field analyzers, in my index creation settings.
For the payload query part, I had to create a PayloadTermQueryBuilder
and PayloadTermQueryParser.
I again added the PayloadTermQueryBuilder to the jar file installed into
the ES lib folder.
But I had to install PayloadTermQueryParser as a plugin, because that's the
only way to tell ES to add it to its index module query parser mappings.
My plugin is just a simplification of your GitHub plugin, containing only
the PayloadTermQueryParser and PayloadPlugin classes, and the
es-plugin.properties file.
Many thanks again for your detailed help.
It would be nice to have all this done in ES core, because I feel payloads
are going be increasingly used, and it has been in Lucene long enough.
Cheers,
devarajaswami
On Tuesday, March 17, 2015 at 3:57:09 PM UTC-7, Jörg Prante wrote:
I created an example payload plugin
GitHub - jprante/elasticsearch-payload: Term payloads for Elasticsearch
but I can't get a custom per-field similarity to work. Setting up a field
with a prebuilt similarity works flawlessly, but with a custom one, it is
not even listed in the mapping.
It looks like SimilarityLookupService fails to find custom similarities.
If someone can help in tracking down the issue, I'd be glad. Maybe I do
something wrong.
Jörg
On Tue, Mar 17, 2015 at 5:02 PM, Nikolas Everett <nik...@gmail.com
<javascript:>> wrote:
I imagine the right way to do this is with a plugin but I'm not 100% sure.
On Tue, Mar 17, 2015 at 11:47 AM, Devaraja Swami <devara...@gmail.com
<javascript:>> wrote:
I plan to store floats in the payload and boost the score
(multiplicatively) based on the average value of the payloads over the
occurrences of the matching term in the document. ie., exactly as in
AveragePayloadFunction in Lucene.
On Tue, Mar 17, 2015 at 2:16 AM, joerg...@gmail.com <javascript:> <
joerg...@gmail.com <javascript:>> wrote:
The concrete implementation depends on what you store in the payload
(e.g. scores)
Jörg
On Tue, Mar 17, 2015 at 7:01 AM, Devaraja Swami <devara...@gmail.com
<javascript:>> wrote:
I need to use PayloadTermQuery from Lucene.
Does anyone know how I can use this in Elasticsearch?
I am using ES 1.4.4, with the Java API.
In Lucene, I could use this by directly instantiating
PayloadTermQuery, but there are no APIs in ES QueryBuilders for this.
I don't need a query parser, because I can build the query directly
using the Java API (don't need a JSON representation of the query),
so I only need to be able to construct, in Java, a query builder
encapsulating a PayloadTermQuery.
Thanks in advance!
-devarajaswami
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