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POLucene wildcard queries
 

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    <p>I have this question relating to Lucene.</p> <p>I have a form and I get a text from it and I want to perform a full text search in several fields. Suppose I get from the input the text "textToLook".</p> <p>I have a Lucene Analyzer with several filters. One of them is lowerCaseFilter, so when I create the index, words will be lowercased.</p> <p>Imagine I want to search into two fields field1 and field2 so the lucene query would be something like this (note that 'textToLook' now is 'texttolook'):</p> <pre><code>field1: texttolook* field2:texttolook* </code></pre> <p>In my class I have something like this to create the query. I works when there is no wildcard. </p> <pre><code>String text = "textToLook"; String[] fields = {"field1", "field2"}; //analyser is the same as the one used for indexing Analyzer analyzer = fullTextEntityManager.getSearchFactory().getAnalyzer("customAnalyzer"); MultiFieldQueryParser parser = new MultiFieldQueryParser(fields, analyzer); org.apache.lucene.search.Query queryTextoLibre = parser.parse(text); </code></pre> <p>With this code the query would be:</p> <pre><code>field1: texttolook field2:texttolook </code></pre> <p>but If I set text to "textToLook*" I get</p> <pre><code>field1: textToLook* field2:textToLook* </code></pre> <p>which won't find correctly as the indexes are in lowercase.</p> <p>I have read in lucene website this: </p> <blockquote> <p>" Wildcard, Prefix, and Fuzzy queries are not passed through the Analyzer, which is the component that performs operations such as stemming and lowercasing"</p> </blockquote> <p>My problem cannot be solved by setting the behaviour case insensitive cause my analyzer has other fields which for examples remove some suffixes of words.</p> <p>I think I can solve the problem by getting how the text would be after going through the filters of my analyzer, then I could add the "*" and then I could build the Query with MultiFieldQueryParser. So in this example I woud get "textToLower" and after being passed to to these filters I could get "texttolower". After this I could make "textotolower*".</p> <p>But, is there any way to get the value of my text variable after going through all my analyzer's filters? How can I get all the filters of my analyzer? Is this possible?</p> <p>Thanks</p>
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