package org.jinq.jpa.transform;
import org.jinq.jpa.jpqlquery.JPQLQuery;
import org.jinq.jpa.jpqlquery.SelectOnly;
import org.objectweb.asm.Type;
import ch.epfl.labos.iu.orm.queryll2.symbolic.TypedValueVisitorException;
/**
* Handles the lookup of parameters passed to a lambda. Parameters can
* be used to represent query parameters or references to the data stream.
* This class handles the lookup of a data stream of the result of a
* Select..From..Where query.
*/
public class AggregateStreamLambdaArgumentHandler extends LambdaParameterArgumentHandler
{
SelectOnly<?> select;
public AggregateStreamLambdaArgumentHandler(SelectOnly<?> select, LambdaAnalysis lambda, MetamodelUtil metamodel, SymbExArgumentHandler parentArgumentScope, boolean hasInQueryStreamSource)
{
super(lambda, metamodel, parentArgumentScope, hasInQueryStreamSource);
this.select = select;
}
@Override
protected JPQLQuery<?> handleLambdaSubQueryArg(int argIndex, Type argType)
throws TypedValueVisitorException
{
if (argIndex == 0)
return select;
throw new TypedValueVisitorException("Lambda trying to access unknown lambda parameter");
}
}