WildcardQuery

Class Overview

Implements the wildcard search query. Supported wildcards are *, which matches any character sequence (including the empty one), and ?, which matches any single character. Note this query can be slow, as it needs to iterate over many terms. In order to prevent extremely slow WildcardQueries, a Wildcard term should not start with one of the wildcards * or ?.

This query uses the CONSTANT_SCORE_AUTO_REWRITE_DEFAULT rewrite method.

Summary

[Expand] Inherited Fields

From class org.apache.lucene.search.MultiTermQuery public static final MultiTermQuery.RewriteMethod CONSTANT_SCORE_AUTO_REWRITE_DEFAULT Read-only default instance of MultiTermQuery.ConstantScoreAutoRewrite, with setTermCountCutoff(int) set to DEFAULT_TERM_COUNT_CUTOFF and setDocCountPercent(double) set to DEFAULT_DOC_COUNT_PERCENT. public static final MultiTermQuery.RewriteMethod CONSTANT_SCORE_BOOLEAN_QUERY_REWRITE Like SCORING_BOOLEAN_QUERY_REWRITE except scores are not computed. public static final MultiTermQuery.RewriteMethod CONSTANT_SCORE_FILTER_REWRITE A rewrite method that first creates a private Filter, by visiting each term in sequence and marking all docs for that term. public static final MultiTermQuery.RewriteMethod SCORING_BOOLEAN_QUERY_REWRITE A rewrite method that first translates each term into SHOULD clause in a BooleanQuery, and keeps the scores as computed by the query. protected MultiTermQuery.RewriteMethod rewriteMethod

[Expand] Inherited Methods
From class org.apache.lucene.search.MultiTermQuery void clearTotalNumberOfTerms() Expert: Resets the counting of unique terms. boolean equals(Object obj) abstract FilteredTermEnum getEnum(IndexReader reader) Construct the enumeration to be used, expanding the pattern term. MultiTermQuery.RewriteMethod getRewriteMethod() int getTotalNumberOfTerms() Expert: Return the number of unique terms visited during execution of the query. int hashCode() void incTotalNumberOfTerms(int inc) Query rewrite(IndexReader reader) Expert: called to re-write queries into primitive queries. void setRewriteMethod(MultiTermQuery.RewriteMethod method) Sets the rewrite method to be used when executing the query.
From class org.apache.lucene.search.Query Object clone() Returns a clone of this query. Query combine(Query[] queries) Expert: called when re-writing queries under MultiSearcher. Weight createWeight(Searcher searcher) Expert: Constructs an appropriate Weight implementation for this query. boolean equals(Object obj) void extractTerms(Set<Term> terms) Expert: adds all terms occurring in this query to the terms set. float getBoost() Gets the boost for this clause. Similarity getSimilarity(Searcher searcher) Expert: Returns the Similarity implementation to be used for this query. int hashCode() static Query mergeBooleanQueries(BooleanQuery... queries) Expert: merges the clauses of a set of BooleanQuery's into a single BooleanQuery. Query rewrite(IndexReader reader) Expert: called to re-write queries into primitive queries. void setBoost(float b) Sets the boost for this query clause to b. String toString() Prints a query to a string. abstract String toString(String field) Prints a query to a string, with field assumed to be the default field and omitted. Weight weight(Searcher searcher) Expert: Constructs and initializes a Weight for a top-level query.
From class java.lang.Object Object clone() boolean equals(Object arg0) void finalize() final Class<?> getClass() int hashCode() final void notify() final void notifyAll() String toString() final void wait() final void wait(long arg0, int arg1) final void wait(long arg0)