Class MappingExpressionUtils.EvaluateWorker

java.lang.Object

se.liu.ida.hefquin.mappings.algebra.exprs.MappingExpressionUtils.EvaluateWorker

All Implemented Interfaces:

MappingOperatorVisitor

Enclosing class:

MappingExpressionUtils

protected static class MappingExpressionUtils.EvaluateWorker
extends Object
implements MappingOperatorVisitor

Field Summary

Fields

Modifier and Type	Field	Description
protected MappingRelation[]	inputs
protected MappingRelation	output
protected Map<SourceReference,DataObject>	srMap

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	EvaluateWorker()

Method Summary

Modifier and Type	Method	Description
protected MappingRelation	evaluate(MappingExpression expr, Map<SourceReference,DataObject> srMap, MappingRelation... inputs)
void	visit(MappingOpConstant op)
void	visit(MappingOpExtend op)
<DDS extends DataObject, DC1 extends DataObject, DC2 extends DataObject, QL1 extends Query, QL2 extends Query> void	visit(MappingOpExtract<DDS,DC1,DC2,QL1,QL2> op)
void	visit(MappingOpJoin op)
void	visit(MappingOpProject op)
void	visit(MappingOpUnion op)

Methods inherited from class java.lang.Object

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

Field Details

srMap

protected Map<SourceReference,DataObject> srMap

inputs

protected MappingRelation[] inputs

output

protected MappingRelation output

Constructor Details

EvaluateWorker

protected EvaluateWorker()

Method Details

evaluate

protected MappingRelation evaluate(MappingExpression expr,
 Map<SourceReference,DataObject> srMap,
 MappingRelation... inputs)

visit

public <DDS extends DataObject,
DC1 extends DataObject,
DC2 extends DataObject,
QL1 extends Query,
QL2 extends Query>
void visit(MappingOpExtract<DDS,DC1,DC2,QL1,QL2> op)

Specified by:

visit in interface MappingOperatorVisitor

visit

public void visit(MappingOpConstant op)

Specified by:

visit in interface MappingOperatorVisitor

visit

public void visit(MappingOpExtend op)

Specified by:

visit in interface MappingOperatorVisitor

visit

public void visit(MappingOpProject op)

Specified by:

visit in interface MappingOperatorVisitor

visit

public void visit(MappingOpJoin op)

Specified by:

visit in interface MappingOperatorVisitor

visit

public void visit(MappingOpUnion op)

Specified by:

visit in interface MappingOperatorVisitor