WildcardQuery (Lucene 2.4.1 API)
Keywords: org.apache.lucene.search.WildcardQuery class

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## org.apache.lucene.search
Class WildcardQuery

    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 `?`.

See Also:
  `WildcardTermEnum`, Serialized Form

Constructor Summary
`WildcardQuery(Term term)`

Method Summary
`boolean` | `equals(Object o)`
`protected FilteredTermEnum` | `getEnum(IndexReader reader)` Construct the enumeration to be used, expanding the pattern term.
`Query` | `rewrite(IndexReader reader)` Expert: called to re-write queries into primitive queries.

Methods inherited from class org.apache.lucene.search.MultiTermQuery
`getTerm, hashCode, toString`

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`

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`

### equals

    public boolean equals(Object o)

  Overrides:
    `equals` in class `MultiTermQuery`

### rewrite

    public Query rewrite(IndexReader reader)
                  throws IOException

  Description copied from class: `Query`
  Expert: called to re-write queries into primitive queries. For example, a PrefixQuery will be rewritten into a BooleanQuery that consists of TermQuerys.

  Overrides:
    `rewrite` in class `MultiTermQuery`
  Throws:
    `IOException`

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