uba.db.sql.interpreter
Class QueryPlanner

java.lang.Object
  uba.db.sql.interpreter.QueryPlanner

public class QueryPlanner
extends java.lang.Object

Constructor Summary

QueryPlanner(uba.db.Database database)
Genera el plan de ejecución si la sentencia es válida semánticamente (las tablas existen, etc).

Method Summary

java.lang.String	currentPlan()
uba.db.ar.TuplaDef	currentTuplaDefinition()
void	execute(uba.db.sql.language.Sentence sqlSentence)
boolean	hasMoreResults()
uba.db.ar.Tupla	nextTuple()
void	queryPlanToUse(SentenceQueryPlan sentencePlan)

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryPlanner

public QueryPlanner(uba.db.Database database)

Genera el plan de ejecución si la sentencia es válida semánticamente (las tablas existen, etc).

Parameters:

sqlSentence - El select a ejecutar.

database - TODO

Method Detail

execute

public void execute(uba.db.sql.language.Sentence sqlSentence)

queryPlanToUse

public void queryPlanToUse(SentenceQueryPlan sentencePlan)

hasMoreResults

public boolean hasMoreResults()

nextTuple

public uba.db.ar.Tupla nextTuple()

currentPlan

public java.lang.String currentPlan()

currentTuplaDefinition

public uba.db.ar.TuplaDef currentTuplaDefinition()