org.apache.lucene.search
Class MultiSearcher

java.lang.Object
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  +--org.apache.lucene.search.Searcher
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        +--org.apache.lucene.search.MultiSearcher

public final class MultiSearcher

extends Searcher

Implements search over a set of Searchers.

Constructor Summary

MultiSearcher(Searcher[] searchers)
Creates a searcher which searches searchers.

Method Summary

void	close() Frees resources associated with this Searcher.
Document	doc(int n) For use by HitCollector implementations.
void	search(Query query, Filter filter, HitCollector results) Lower-level search API.
int	searcherIndex(int n) For use by HitCollector implementations to identify the index of the sub-searcher that a particular hit came from.

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

search, search, search

Methods inherited from class java.lang.Object

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

Constructor Detail

MultiSearcher

public MultiSearcher(Searcher[] searchers)
              throws IOException

Creates a searcher which searches searchers.

Method Detail

close

public final void close()
                 throws IOException

Frees resources associated with this Searcher.

Overrides:

close in class Searcher

doc

public final Document doc(int n)
                   throws IOException

For use by HitCollector implementations.

Overrides:

doc in class Searcher

searcherIndex

public final int searcherIndex(int n)

For use by HitCollector implementations to identify the index of the sub-searcher that a particular hit came from.

search

public final void search(Query query,
                         Filter filter,
                         HitCollector results)
                  throws IOException

Lower-level search API.

HitCollector.collect(int,float) is called for every non-zero scoring document.

Applications should only use this if they need all of the matching documents. The high-level search API (Searcher.search(Query)) is usually more efficient, as it skips non-high-scoring hits.

Overrides:

search in class Searcher

Parameters:

query - to match documents

filter - if non-null, a bitset used to eliminate some documents

results - to receive hits