Greg Bowyer created SOLR-3553:
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Summary: Make solr Plugins (FieldType, Analyser etc) be inheritable
Key: SOLR-3553
URL: https://issues.apache.org/jira/browse/SOLR-3553
Project: Solr
Issue Type: New Feature
Affects Versions: 4.0
Reporter: Greg Bowyer
During defining an experimental schema for trialling all the combinations of
scoring models for lucene 4 it struck me how much duplication is involved in
the schema xml
Using the current schema I am working with as an example,
{code:xml}
<fieldType name="text" class="solr.TextField"
positionIncrementGap="100"
autoGeneratePhraseQueries="true">
<analyzer type="index">
<tokenizer class="solr.WhitespaceTokenizerFactory"/>
<filter class="solr.TrimFilterFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.WordDelimiterFilterFactory"
generateWordParts="1" generateNumberParts="1"
catenateWords="0" catenateNumbers="1" catenateAll="0"
splitOnCaseChange="1" splitOnNumerics="0"
stemEnglishPossesive="0" preserveOriginal="0" />
<filter class="solr.ASCIIFoldingFilterFactory"/>
<filter class="solr.StopFilterFactory"
ignoreCase="true" words="stopwords.txt"
enablePositionIncrements="true" />
... And so on
{code}
What I would like to be able to say is
{code:xml}
<fieldType name="text_bm25" parent="text">
<similarity class="solr.BM25SimilarityFactory">
<float name="k1">1.2</float>
<float name="b">0.76</float>
</similarity>
</fieldType>
{code}
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