Hi all,
I sent a mail in about this topic a week ago but now that I have more
information about what I am doing, as well as a better understanding of how
the similarity class works, I wanted to start a new thread with a bit more
information about what I'm doing, what I want to do, and how I can make it
work correctly.
I have written a similarity class that I would like applied to a specific
field.
This is how I am defining the fieldType:
<fieldType name="edgengram_cust" class="solr.TextField"
positionIncrementGap="1000">
<analyzer>
<tokenizer class="solr.LowerCaseTokenizerFactory" />
<filter class="solr.EdgeNGramFilterFactory" minGramSize="1"
maxGramSize="1" side="front" />
</analyzer>
<similarity class="my.package.similarity.MySimilarity"/>
</fieldType>
And then I assign a specific field to that fieldType:
<field name="myfield" multiValued="true" type="edgengram_cust"
indexed="true" stored="true" required="false" omitNorms="true" />
Then, I restarted solr and did a fullimport. However, the changes I have
made do not appear to be taking hold. For simplicity, right now I just have
the idf function returning 1. When I do a search with debugQuery=on, the idf
behaves as it normally does. However, when I search on this field, the idf
should be 1 and that is not the case.
To try and nail down where the problem occurs, I commented out the
similarity class definition in the fieldType and added it globally to the
schema file:
<similarity class="my.package.similarity.MySimilarity"/>
Then, I restarted solr and did a fullimport. This time, the idf scores were
all 1. So it seems to me the problem is not with my similarity class but in
trying to apply it to a specific fieldType.
According to https://issues.apache.org/jira/browse/SOLR-2338, this should be
in the trunk now yes? I have run svn up on both my lucene and solr installs
and it still is not recognizing it on a per field basis.
Is the tag different inside a fieldType? Did I not update solr correctly?
Where is my mistake?
Thanks,
Brian Lamb
