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java.lang.Object org.apache.lucene.search.Query org.apache.jackrabbit.core.query.lucene.WildcardQuery
public class WildcardQuery
Implements a wildcard query on a lucene field with an embedded property name and a pattern.
Wildcards are:%
: matches zero or more characters_
: matches exactly one character
Field Summary |
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Fields inherited from interface org.apache.jackrabbit.core.query.lucene.TransformConstants |
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TRANSFORM_LOWER_CASE, TRANSFORM_NONE, TRANSFORM_UPPER_CASE |
Constructor Summary | |
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WildcardQuery(String field,
String propName,
String pattern)
Creates a new WildcardQuery . |
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WildcardQuery(String field,
String propName,
String pattern,
int transform)
Creates a new WildcardQuery . |
Method Summary | |
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protected org.apache.lucene.search.Weight |
createWeight(org.apache.lucene.search.Searcher searcher)
Creates the Weight for this query. |
void |
extractTerms(Set terms)
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org.apache.lucene.search.Query |
rewrite(org.apache.lucene.index.IndexReader reader)
Either rewrites this query to a lucene MultiTermQuery or in case of a TooManyClauses exception to a custom jackrabbit query implementation that uses a BitSet to collect all hits. |
void |
setTransformation(int transformation)
Sets the transformation. |
String |
toString(String field)
Returns a string representation of this query. |
Methods inherited from class org.apache.lucene.search.Query |
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clone, combine, getBoost, getSimilarity, mergeBooleanQueries, setBoost, toString, weight |
Methods inherited from class java.lang.Object |
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equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public WildcardQuery(String field, String propName, String pattern, int transform)
WildcardQuery
.
field
- the name of the field to search.propName
- name of the property to search.pattern
- the wildcard pattern.transform
- how property values are transformed before they are
matched using the pattern
.public WildcardQuery(String field, String propName, String pattern)
WildcardQuery
.
field
- the name of the field to search.propName
- name of the property to search.pattern
- the wildcard pattern.Method Detail |
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public void setTransformation(int transformation)
TransformConstants.TRANSFORM_LOWER_CASE
TransformConstants.TRANSFORM_NONE
TransformConstants.TRANSFORM_UPPER_CASE
setTransformation
in interface Transformable
transformation
- a transform constant.public org.apache.lucene.search.Query rewrite(org.apache.lucene.index.IndexReader reader) throws IOException
rewrite
in class org.apache.lucene.search.Query
reader
- the index reader to use for the search.
IOException
- if an error occurs while reading from the index.protected org.apache.lucene.search.Weight createWeight(org.apache.lucene.search.Searcher searcher)
Weight
for this query.
createWeight
in class org.apache.lucene.search.Query
searcher
- the searcher to use for the Weight
.
Weigth
for this query.public String toString(String field)
toString
in class org.apache.lucene.search.Query
field
- the field name for which to create a string representation.
public void extractTerms(Set terms)
extractTerms
in class org.apache.lucene.search.Query
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