org.apache.lucene.search

Class MatchAllDocsQuery

java.lang.Object

org.apache.lucene.search.Query

org.apache.lucene.search.MatchAllDocsQuery

All Implemented Interfaces:

Serializable, Cloneable

public class MatchAllDocsQuery
extends Query

A query that matches all documents.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
MatchAllDocsQuery()

Method Summary

Methods

Modifier and Type	Method and Description
protected Weight	createWeight(Searcher searcher) Expert: Constructs an appropriate Weight implementation for this query.
boolean	equals(Object o)
void	extractTerms(Set terms) Expert: adds all terms occuring in this query to the terms set.
int	hashCode()
String	toString(String field) Prints a query to a string, with field assumed to be the default field and omitted.

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

MatchAllDocsQuery

public MatchAllDocsQuery()

Method Detail

createWeight

protected Weight createWeight(Searcher searcher)

Description copied from class: Query

Expert: Constructs an appropriate Weight implementation for this query.

Only implemented by primitive queries, which re-write to themselves.

Overrides:

createWeight in class Query

extractTerms

public void extractTerms(Set terms)

Description copied from class: Query

Expert: adds all terms occuring in this query to the terms set. Only works if this query is in its rewritten form.

Overrides:

extractTerms in class Query

toString

public String toString(String field)

Description copied from class: Query

Prints a query to a string, with field assumed to be the default field and omitted.

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

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object