org.apache.lucene.search.regex
Class SpanRegexQuery

java.lang.Object
  org.apache.lucene.search.Query
      org.apache.lucene.search.spans.SpanQuery
          org.apache.lucene.search.regex.SpanRegexQuery

All Implemented Interfaces:

java.lang.Cloneable, org.apache.lucene.search.regex.RegexQueryCapable, java.io.Serializable

public class SpanRegexQuery

extends SpanQuery

implements org.apache.lucene.search.regex.RegexQueryCapable

A SpanQuery version of RegexQuery allowing regular expression queries to be nested within other SpanQuery subclasses.

See Also:

Serialized Form

Constructor Summary

SpanRegexQuery(Term term)

Method Summary

boolean	equals(java.lang.Object o)
java.lang.String	getField() Returns the name of the field matched by this query.
org.apache.lucene.search.regex.RegexCapabilities	getRegexImplementation()
Spans	getSpans(IndexReader reader) Expert: Returns the matches for this query in an index.
Term	getTerm()
java.util.Collection	getTerms() Returns a collection of all terms matched by this query.
int	hashCode()
Query	rewrite(IndexReader reader) Expert: called to re-write queries into primitive queries.
void	setRegexImplementation(org.apache.lucene.search.regex.RegexCapabilities impl)
java.lang.String	toString(java.lang.String field) Prints a query to a string, with field as the default field for terms.

Methods inherited from class org.apache.lucene.search.spans.SpanQuery

createWeight

Methods inherited from class org.apache.lucene.search.Query

clone, combine, extractTerms, getBoost, getSimilarity, mergeBooleanQueries, setBoost, toString, weight

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

SpanRegexQuery

public SpanRegexQuery(Term term)

Method Detail

getTerm

public Term getTerm()

rewrite

public Query rewrite(IndexReader reader)
              throws java.io.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 Query

Throws:

java.io.IOException

getSpans

public Spans getSpans(IndexReader reader)
               throws java.io.IOException

Description copied from class: SpanQuery

Expert: Returns the matches for this query in an index. Used internally to search for spans.

Specified by:

getSpans in class SpanQuery

Throws:

java.io.IOException

getField

public java.lang.String getField()

Description copied from class: SpanQuery

Returns the name of the field matched by this query.

Specified by:

getField in class SpanQuery

getTerms

public java.util.Collection getTerms()

Description copied from class: SpanQuery

Returns a collection of all terms matched by this query.

Specified by:

getTerms in class SpanQuery

equals

public boolean equals(java.lang.Object o)

hashCode

public int hashCode()

toString

public java.lang.String toString(java.lang.String field)

Description copied from class: Query

Prints a query to a string, with field as the default field for terms.

The representation used is one that is supposed to be readable by QueryParser. However, there are the following limitations:

• If the query was created by the parser, the printed representation may not be exactly what was parsed. For example, characters that need to be escaped will be represented without the required backslash.
• Some of the more complicated queries (e.g. span queries) don't have a representation that can be parsed by QueryParser.

Specified by:

toString in class Query

setRegexImplementation

public void setRegexImplementation(org.apache.lucene.search.regex.RegexCapabilities impl)

Specified by:

setRegexImplementation in interface org.apache.lucene.search.regex.RegexQueryCapable

getRegexImplementation

public org.apache.lucene.search.regex.RegexCapabilities getRegexImplementation()

Specified by:

getRegexImplementation in interface org.apache.lucene.search.regex.RegexQueryCapable