Package se.liu.ida.hefquin.engine.queryproc

Interface SourcePlanner

All Known Implementing Classes:

ExhaustiveSourcePlannerImpl, ServiceClauseBasedSourcePlannerImpl, SourcePlannerBase

public interface SourcePlanner

Method Summary

Modifier and Type	Method	Description
Pair<LogicalPlan,SourcePlanningStats>	createSourceAssignment(Query query)	The logical plan returned by this method is a source assignment (see Definition 8 of our FedQPL paper); that is, the only types of operators that it contains are request operators (LogicalOpRequest), multiway joins (LogicalOpMultiwayJoin), and multiway unions (LogicalOpMultiwayUnion).

Method Details

createSourceAssignment

Pair<LogicalPlan,SourcePlanningStats> createSourceAssignment(Query query)
                                                      throws SourcePlanningException

The logical plan returned by this method is a source assignment (see Definition 8 of our FedQPL paper); that is, the only types of operators that it contains are request operators (LogicalOpRequest), multiway joins (LogicalOpMultiwayJoin), and multiway unions (LogicalOpMultiwayUnion).

Throws:

SourcePlanningException