org.apache.jackrabbit.core.query.lucene
Class JackrabbitIndexSearcher

java.lang.Object
  org.apache.lucene.search.Searcher
      org.apache.lucene.search.IndexSearcher
          org.apache.jackrabbit.core.query.lucene.JackrabbitIndexSearcher

All Implemented Interfaces:

Remote, EvaluationContext, org.apache.lucene.search.Searchable

public class JackrabbitIndexSearcher
extends org.apache.lucene.search.IndexSearcher
implements EvaluationContext

JackrabbitIndexSearcher implements an index searcher with jackrabbit specific optimizations.

Constructor Summary

JackrabbitIndexSearcher(SessionImpl s, org.apache.lucene.index.IndexReader r, ItemStateManager ism)
Creates a new jackrabbit index searcher.

Method Summary

int	docFreq(org.apache.lucene.index.Term term)
QueryHits	evaluate(org.apache.lucene.search.Query query) Evaluates the query and returns the hits that match the query.
QueryHits	evaluate(org.apache.lucene.search.Query query, org.apache.lucene.search.Sort sort, long resultFetchHint) Evaluates the query and returns the hits that match the query.
MultiColumnQueryHits	execute(org.apache.lucene.search.Query query, org.apache.lucene.search.Sort sort, long resultFetchHint, Name selectorName) Executes the query and returns the hits that match the query.
ItemStateManager	getItemStateManager()
SessionImpl	getSession()

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

close, doc, doc, explain, getIndexReader, maxDoc, rewrite, search, search, search

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

createWeight, docFreqs, explain, getSimilarity, search, search, search, search, search, search, search, search, search, setSimilarity

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.jackrabbit.core.query.lucene.constraint.EvaluationContext

getIndexReader

Constructor Detail

JackrabbitIndexSearcher

public JackrabbitIndexSearcher(SessionImpl s,
                               org.apache.lucene.index.IndexReader r,
                               ItemStateManager ism)

Creates a new jackrabbit index searcher.

Parameters:

s - the session that executes the query.

r - the index reader.

ism - the shared item state manager.

Method Detail

execute

public MultiColumnQueryHits execute(org.apache.lucene.search.Query query,
                                    org.apache.lucene.search.Sort sort,
                                    long resultFetchHint,
                                    Name selectorName)
                             throws IOException

Executes the query and returns the hits that match the query.

Parameters:

query - the query to execute.

sort - the sort criteria.

resultFetchHint - a hint on how many results should be fetched.

selectorName - the single selector name for the query hits.

Returns:

the query hits.

Throws:

IOException - if an error occurs while executing the query.

evaluate

public QueryHits evaluate(org.apache.lucene.search.Query query,
                          org.apache.lucene.search.Sort sort,
                          long resultFetchHint)
                   throws IOException

Evaluates the query and returns the hits that match the query.

Parameters:

query - the query to execute.

sort - the sort criteria.

resultFetchHint - a hint on how many results should be fetched.

Returns:

the query hits.

Throws:

IOException - if an error occurs while executing the query.

docFreq

public int docFreq(org.apache.lucene.index.Term term)
            throws IOException

Specified by:

docFreq in interface org.apache.lucene.search.Searchable

Overrides:

docFreq in class org.apache.lucene.search.IndexSearcher

Throws:

IOException

evaluate

public QueryHits evaluate(org.apache.lucene.search.Query query)
                   throws IOException

Evaluates the query and returns the hits that match the query.

Specified by:

evaluate in interface EvaluationContext

Parameters:

query - the query to execute.

Returns:

the query hits.

Throws:

IOException - if an error occurs while executing the query.

getSession

public SessionImpl getSession()

Specified by:

getSession in interface EvaluationContext

Returns:

session that executes the query.

getItemStateManager

public ItemStateManager getItemStateManager()

Specified by:

getItemStateManager in interface EvaluationContext

Returns:

the item state manager of the workspace.