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Default fuzzy transpositions to true 

This commit defaults fuzzy_transpositions on fuzzy queries to true. This means that by default, tranpositions will now count as a single
edit.

Closes #9278
This commit is contained in:
Jason Tedor 2015-07-07 13:12:44 -04:00
parent 6eacbf764d
commit 83f6587e61
3 changed files with 5 additions and 8 deletions
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6
core/src/main/java/org/apache/lucene/queryparser/classic/MapperQueryParser.java
View File

@ -428,8 +428,7 @@ public class MapperQueryParser extends QueryParser {
currentFieldType = parseContext.fieldMapper(field);
if (currentFieldType != null) {
try {
//LUCENE 4 UPGRADE I disabled transpositions here by default - maybe this needs to be changed
return currentFieldType.fuzzyQuery(termStr, Fuzziness.build(minSimilarity), fuzzyPrefixLength, settings.fuzzyMaxExpansions(), false);
return currentFieldType.fuzzyQuery(termStr, Fuzziness.build(minSimilarity), fuzzyPrefixLength, settings.fuzzyMaxExpansions(), FuzzyQuery.defaultTranspositions);
} catch (RuntimeException e) {
if (settings.lenient()) {
return null;
@ -444,8 +443,7 @@ public class MapperQueryParser extends QueryParser {
protected Query newFuzzyQuery(Term term, float minimumSimilarity, int prefixLength) {
String text = term.text();
int numEdits = FuzzyQuery.floatToEdits(minimumSimilarity, text.codePointCount(0, text.length()));
//LUCENE 4 UPGRADE I disabled transpositions here by default - maybe this needs to be changed
FuzzyQuery query = new FuzzyQuery(term, numEdits, prefixLength, settings.fuzzyMaxExpansions(), false);
FuzzyQuery query = new FuzzyQuery(term, numEdits, prefixLength, settings.fuzzyMaxExpansions(), FuzzyQuery.defaultTranspositions);
QueryParsers.setRewriteMethod(query, settings.fuzzyRewriteMethod());
return query;
}

2
core/src/main/java/org/elasticsearch/index/query/FuzzyQueryParser.java
View File

@ -66,7 +66,7 @@ public class FuzzyQueryParser implements QueryParser {
Fuzziness fuzziness = DEFAULT_FUZZINESS;
int prefixLength = FuzzyQuery.defaultPrefixLength;
int maxExpansions = FuzzyQuery.defaultMaxExpansions;
boolean transpositions = false;
boolean transpositions = FuzzyQuery.defaultTranspositions;
String queryName = null;
MultiTermQuery.RewriteMethod rewriteMethod = null;
if (parseContext.isFilter()) {

3
core/src/main/java/org/elasticsearch/index/search/MatchQuery.java
View File

@ -66,8 +66,7 @@ public class MatchQuery {
protected int maxExpansions = FuzzyQuery.defaultMaxExpansions;
//LUCENE 4 UPGRADE we need a default value for this!
protected boolean transpositions = false;
protected boolean transpositions = FuzzyQuery.defaultTranspositions;
protected MultiTermQuery.RewriteMethod rewriteMethod;