Module org.apache.lucene.monitor

Package org.apache.lucene.monitor

Class WritableQueryIndex.MonitorQueryCollector

java.lang.Object

org.apache.lucene.search.SimpleCollector

org.apache.lucene.monitor.WritableQueryIndex.MonitorQueryCollector

All Implemented Interfaces:

Collector, LeafCollector

Enclosing class:

WritableQueryIndex

static final class WritableQueryIndex.MonitorQueryCollector
extends SimpleCollector

A Collector that decodes the stored query for each document hit.

Field Summary

Fields

Modifier and Type	Field	Description
private final QueryIndex.DataValues	dataValues
private final QueryIndex.QueryCollector	matcher
private final Map<String,QueryCacheEntry>	queries

Constructor Summary

Constructors

Constructor	Description
MonitorQueryCollector(Map<String,QueryCacheEntry> queries, QueryIndex.QueryCollector matcher)

Method Summary

Modifier and Type	Method	Description
void	collect(int doc)	Called once for every document matching a query, with the unbased document number.
void	doSetNextReader(LeafReaderContext context)	This method is called before collecting context.
ScoreMode	scoreMode()	Indicates what features are required from the scorer.
void	setWeight(Weight weight)	Set the Weight that will be used to produce scorers that will feed LeafCollectors.

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

getLeafCollector, setScorer

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.lucene.search.LeafCollector

collect, competitiveIterator, finish

Field Details

queries

private final Map<String,QueryCacheEntry> queries

matcher

private final QueryIndex.QueryCollector matcher

dataValues

private final QueryIndex.DataValues dataValues

Constructor Details

MonitorQueryCollector

MonitorQueryCollector(Map<String,QueryCacheEntry> queries,
 QueryIndex.QueryCollector matcher)

Method Details

setWeight

public void setWeight(Weight weight)

Description copied from interface: Collector

Set the Weight that will be used to produce scorers that will feed LeafCollectors. This is typically useful to have access to Weight.count(org.apache.lucene.index.LeafReaderContext) from Collector.getLeafCollector(org.apache.lucene.index.LeafReaderContext).

collect

public void collect(int doc)
             throws IOException

Description copied from interface: LeafCollector

Called once for every document matching a query, with the unbased document number.

Note: The collection of the current segment can be terminated by throwing a CollectionTerminatedException. In this case, the last docs of the current LeafReaderContext will be skipped and IndexSearcher will swallow the exception and continue collection with the next leaf.

Note: This is called in an inner search loop. For good search performance, implementations of this method should not call StoredFields.document(int) on every hit. Doing so can slow searches by an order of magnitude or more.

Specified by:

collect in interface LeafCollector

Specified by:

collect in class SimpleCollector

Throws:

IOException

doSetNextReader

public void doSetNextReader(LeafReaderContext context)
                     throws IOException

Description copied from class: SimpleCollector

This method is called before collecting context.

Overrides:

doSetNextReader in class SimpleCollector

Throws:

IOException

scoreMode

public ScoreMode scoreMode()

Description copied from interface: Collector

Indicates what features are required from the scorer.