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Possibility to allow leading wildcard in queries #30

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Possibility to allow leading wildcard in queries #30

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2 changes: 2 additions & 0 deletions documentation/manual/home.textile
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Original file line number Diff line number Diff line change
Expand Up @@ -107,11 +107,13 @@ bc. play.search.path=/tmp/myDevApplication
play.search.analyser=org.apache.lucene.analysis.standard.StandardAnalyzer
play.search.lucene.version=30
play.search.defaultSearchField=allfield
play.search.allowLeadingWildcard=false

**play.search.path** is where the module stores its indexes
**play.search.analyser** is the lucene analyzer class used for indexation.
**play.search.lucene.version** is the lucene's version (for compatibility mode). Default: 30
**play.search.defaultSearchField** is the default field name used when parsing queries. Default : allfield (special field containing all other fields)
**play.search.allowLeadingWildcard** When set to true, * or ? are allowed as the first character of a query. Note that this can produce very slow queries on big indexes. Default: false

h3. <a> Lucene Version </a>

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5 changes: 3 additions & 2 deletions src/play/modules/search/Query.java
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Expand Up @@ -147,8 +147,9 @@ public List<QueryResult> executeQuery(boolean fetch) throws SearchException {
try {
if (topDocs == null) {
String defaultField = Play.configuration.getProperty("play.search.defaultSearchField", "allfield");
org.apache.lucene.search.Query luceneQuery =
new QueryParser(Search.getLuceneVersion(), defaultField, Search.getAnalyser()).parse(query);
QueryParser queryParser = new QueryParser(Search.getLuceneVersion(), defaultField, Search.getAnalyser());
queryParser.setAllowLeadingWildcard(Play.configuration.getProperty("play.search.allowLeadingWildcard", "false").equals("true"));
org.apache.lucene.search.Query luceneQuery = queryParser.parse(query);
BooleanQuery.setMaxClauseCount(Integer.parseInt(Play.configuration.getProperty(
"play.search.maxClauseCount", "1024")));
topDocs = indexSearcher.search(luceneQuery, null, Integer.MAX_VALUE, getSort());
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