org.apache.lucene.search
Class MatchAllDocsQuery

java.lang.Object
  extended by org.apache.lucene.search.Query
      extended by 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
MatchAllDocsQuery()
           
MatchAllDocsQuery(String normsField)
           
 
Method Summary
 Weight createWeight(Searcher searcher)
          Expert: Constructs an appropriate Weight implementation for this query.
 boolean equals(Object o)
           
 void extractTerms(Set<Term> terms)
          Expert: adds all terms occurring 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()

MatchAllDocsQuery

public MatchAllDocsQuery(String normsField)
Parameters:
normsField - Field used for normalization factor (document boost). Null if nothing.
Method Detail

createWeight

public 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<Term> terms)
Description copied from class: Query
Expert: adds all terms occurring 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:

Specified by:
toString in class Query

equals

public boolean equals(Object o)
Overrides:
equals in class Query

hashCode

public int hashCode()
Overrides:
hashCode in class Query