WildcardQuery (Lucene 3.6.2 API)

java.lang.Object
- org.apache.lucene.search.Query
- - org.apache.lucene.search.MultiTermQuery
  - - org.apache.lucene.search.WildcardQuery

All Implemented Interfaces:

Serializable, Cloneable
```
public class WildcardQuery
extends MultiTermQuery
```
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 MultiTermQuery.CONSTANT_SCORE_AUTO_REWRITE_DEFAULT rewrite method.

See Also:

WildcardTermEnum, Serialized Form

Nested Class Summary
- Nested classes/interfaces inherited from class org.apache.lucene.search.MultiTermQuery
  MultiTermQuery.ConstantScoreAutoRewrite, MultiTermQuery.RewriteMethod, MultiTermQuery.TopTermsBoostOnlyBooleanQueryRewrite, MultiTermQuery.TopTermsScoringBooleanQueryRewrite

Field Summary

Fields
Modifier and Type Field Description

protected Term term
- Fields inherited from class org.apache.lucene.search.MultiTermQuery
  CONSTANT_SCORE_AUTO_REWRITE_DEFAULT, CONSTANT_SCORE_BOOLEAN_QUERY_REWRITE, CONSTANT_SCORE_FILTER_REWRITE, rewriteMethod, SCORING_BOOLEAN_QUERY_REWRITE

Constructor Summary

Constructors
Constructor Description

WildcardQuery(Term term)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(Object obj)`
`protected FilteredTermEnum`	`getEnum(IndexReader reader)`	Construct the enumeration to be used, expanding the pattern term.
`Term`	`getTerm()`	Returns the pattern term.
`int`	`hashCode()`
`String`	`toString(String field)`	Prints a user-readable version of this query.

Methods inherited from class org.apache.lucene.search.MultiTermQuery
clearTotalNumberOfTerms, getRewriteMethod, getTotalNumberOfTerms, incTotalNumberOfTerms, rewrite, setRewriteMethod

Methods inherited from class org.apache.lucene.search.Query
clone, combine, createWeight, extractTerms, getBoost, getSimilarity, mergeBooleanQueries, setBoost, toString, weight

Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - term
```
protected Term term
```
- Constructor Detail
  - WildcardQuery
```
public WildcardQuery(Term term)
```
- Method Detail
  - getEnum
```
protected FilteredTermEnum getEnum(IndexReader reader)
                            throws IOException
```
    Description copied from class: MultiTermQuery
    
    Construct the enumeration to be used, expanding the pattern term.
    
    Specified by:
    
    getEnum in class MultiTermQuery
    
    Throws:
    
    IOException
  - getTerm
```
public Term getTerm()
```
    Returns the pattern term.
  - toString
```
public String toString(String field)
```
    Prints a user-readable version of this query.
    
    Specified by:
    
    toString in class Query
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class MultiTermQuery
  - equals
```
public boolean equals(Object obj)
```
    Overrides:
    
    equals in class MultiTermQuery