Package org.gridgain.tpcds.answer

Class AnswerProvider

java.lang.Object

org.gridgain.tpcds.answer.AnswerProvider

public class AnswerProvider
extends Object

Provider for TPC-DS query expected answers.

Loads answer data from CSV files located in the resources directory under org/gridgain/tpcds/answer/.

Constructor Summary

Constructors

Constructor	Description
AnswerProvider(DataScale answersScale, NullsOrdering nullsOrdering)

Method Summary

Modifier and Type	Method	Description
List<List<String>>	answersForQuery(String queryTemplate)	Loads expected answers for a given TPC-DS query template.
void	saveAnswersForQuery(String queryTemplate, List<List<Object>> realAnswers)	Records provided answers into "answers" directory under CWD.
void	saveAnswersForQuery(Path targetDirectory, String queryTemplate, List<List<Object>> realAnswers)	Records provided answers into target directory.

Methods inherited from class java.lang.Object

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

Constructor Details

AnswerProvider

public AnswerProvider(DataScale answersScale,
 NullsOrdering nullsOrdering)

Method Details

saveAnswersForQuery

public void saveAnswersForQuery(String queryTemplate,
 List<List<Object>> realAnswers)

Records provided answers into "answers" directory under CWD.

Parameters:

queryTemplate - The name of the TPC-DS query template.

realAnswers - The actual query results to save as sample answers.

saveAnswersForQuery

public void saveAnswersForQuery(Path targetDirectory,
 String queryTemplate,
 List<List<Object>> realAnswers)

Records provided answers into target directory.

Parameters:

targetDirectory - The target directory to save the answers.

queryTemplate - The name of the TPC-DS query template.

realAnswers - The actual query results to save as sample answers.

answersForQuery

public List<List<String>> answersForQuery(String queryTemplate)

Loads expected answers for a given TPC-DS query template.

Parameters:

queryTemplate - The name of the TPC-DS query template (e.g., "query01", "query97").

Returns:

A list of rows, where each row is a list of string values representing expected query results.

Throws:

IllegalArgumentException - if the answer file cannot be found.

UncheckedIOException - if an I/O error occurs while reading the answer file.