lux

Class QueryStats

java.lang.Object

lux.QueryStats

public class QueryStats
extends Object

Holds statistics about a single query execution

Field Summary

Fields

Modifier and Type	Field and Description
long	collectionTime time spent collecting results (parsing and computing xpath, mostly), in nanoseconds
int	docCount the number of documents that matched the lucene query.
String	optimizedQuery
XQuery	optimizedXQuery
String	query A description of the work done prior to collection; usu.
long	queryFacts A record of the query's facts.
long	retrievalTime time spent retrieving and parsing documents
long	totalTime

Constructor Summary

Constructors

Constructor and Description
QueryStats()

Method Summary

Methods

Modifier and Type	Method and Description
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

docCount

public int docCount

the number of documents that matched the lucene query. If XPath was executed (there wasn't a short-circuited eval of some sort), this number of XML documents will have been retrieved from the database and processed.

collectionTime

public long collectionTime

time spent collecting results (parsing and computing xpath, mostly), in nanoseconds

totalTime

public long totalTime

query

public String query

A description of the work done prior to collection; usu. the Lucene Query generated from the XPath and used to retrieve a set of candidate documents for evaluation.

queryFacts

public long queryFacts

A record of the query's facts. If multiple queries were evaluated, the facts are combined using bitwise AND.

retrievalTime

public long retrievalTime

time spent retrieving and parsing documents

optimizedQuery

public String optimizedQuery

optimizedXQuery

public XQuery optimizedXQuery

Constructor Detail

QueryStats

public QueryStats()

Method Detail

toString

public String toString()

Overrides:

toString in class Object