org.apache.lucene.benchmark.quality
Class QualityBenchmark

java.lang.Object
  extended by org.apache.lucene.benchmark.quality.QualityBenchmark

public class QualityBenchmark
extends Object

Main entry point for running a quality benchmark.

There are two main configurations for running a quality benchmark:

The first configuration requires a non null Judge. The second configuration requires a non null SubmissionLogger.


Field Summary
protected  String docNameField
          index field to extract doc name for each search result; used for judging the results.
protected  QualityQueryParser qqParser
          Parser for turning QualityQueries into Lucene Queries.
protected  QualityQuery[] qualityQueries
          Quality Queries that this quality benchmark would execute.
protected  Searcher searcher
          Index to be searched.
 
Constructor Summary
QualityBenchmark(QualityQuery[] qqs, QualityQueryParser qqParser, Searcher searcher, String docNameField)
          Create a QualityBenchmark.
 
Method Summary
 QualityStats[] execute(Judge judge, SubmissionReport submitRep, PrintWriter qualityLog)
          Run the quality benchmark.
 int getMaxQueries()
           
 int getMaxResults()
           
 void setMaxQueries(int maxQueries)
          Set the maximum number of quality queries to run.
 void setMaxResults(int maxResults)
          set the maximum number of results to collect for each quality query.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

qualityQueries

protected QualityQuery[] qualityQueries
Quality Queries that this quality benchmark would execute.


qqParser

protected QualityQueryParser qqParser
Parser for turning QualityQueries into Lucene Queries.


searcher

protected Searcher searcher
Index to be searched.


docNameField

protected String docNameField
index field to extract doc name for each search result; used for judging the results.

Constructor Detail

QualityBenchmark

public QualityBenchmark(QualityQuery[] qqs,
                        QualityQueryParser qqParser,
                        Searcher searcher,
                        String docNameField)
Create a QualityBenchmark.

Parameters:
qqs - quality queries to run.
qqParser - parser for turning QualityQueries into Lucene Queries.
searcher - index to be searched.
docNameField - name of field containing the document name. This allows to extract the doc name for search results, and is important for judging the results.
Method Detail

execute

public QualityStats[] execute(Judge judge,
                              SubmissionReport submitRep,
                              PrintWriter qualityLog)
                       throws Exception
Run the quality benchmark.

Parameters:
judge - the judge that can tell if a certain result doc is relevant for a certain quality query. If null, no judgements would be made. Usually null for a submission run.
submitRep - submission report is created if non null.
qualityLog - If not null, quality run data would be printed for each query.
Returns:
QualityStats of each quality query that was executed.
Throws:
Exception - if quality benchmark failed to run.

getMaxQueries

public int getMaxQueries()
Returns:
the maximum number of quality queries to run. Useful at debugging.

setMaxQueries

public void setMaxQueries(int maxQueries)
Set the maximum number of quality queries to run. Useful at debugging.


getMaxResults

public int getMaxResults()
Returns:
the maximum number of results to collect for each quality query.

setMaxResults

public void setMaxResults(int maxResults)
set the maximum number of results to collect for each quality query.



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