org.apache.lucene.monitor

Class QueryIndex.MonitorQueryCollector

java.lang.Object

org.apache.lucene.search.SimpleCollector

org.apache.lucene.monitor.QueryIndex.MonitorQueryCollector

All Implemented Interfaces:

Collector, LeafCollector

Enclosing class:

QueryIndex

static final class QueryIndex.MonitorQueryCollector
extends SimpleCollector

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

Field Summary

Fields

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

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and 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	setScorer(Scorable scorer) Called before successive calls to LeafCollector.collect(int).

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

getLeafCollector

Methods inherited from class java.lang.Object

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

Field Detail

queries

private final java.util.Map<java.lang.String,QueryCacheEntry> queries

matcher

private final QueryIndex.QueryCollector matcher

dataValues

private final QueryIndex.DataValues dataValues

Constructor Detail

MonitorQueryCollector

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

Method Detail

setScorer

public void setScorer(Scorable scorer)

Description copied from interface: LeafCollector

Called before successive calls to LeafCollector.collect(int). Implementations that need the score of the current document (passed-in to LeafCollector.collect(int)), should save the passed-in Scorer and call scorer.score() when needed.

Specified by:

setScorer in interface LeafCollector

Overrides:

setScorer in class SimpleCollector

collect

public void collect(int doc)
             throws java.io.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 IndexSearcher.doc(int) or IndexReader.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:

java.io.IOException

doSetNextReader

public void doSetNextReader(LeafReaderContext context)
                     throws java.io.IOException

Description copied from class: SimpleCollector

This method is called before collecting context.

Overrides:

doSetNextReader in class SimpleCollector

Throws:

java.io.IOException

scoreMode

public ScoreMode scoreMode()

Description copied from interface: Collector

Indicates what features are required from the scorer.