Interface ExecutableOperator

All Superinterfaces:

StatsProvider

All Known Subinterfaces:

BinaryExecutableOp, NaryExecutableOp, NullaryExecutableOp, UnaryExecutableOp

All Known Implementing Classes:

BaseForExecOpIndexNestedLoopsJoinWithRequestOps, BaseForExecOpIndexNestedLoopsJoinWithRequests, BaseForExecOpIndexNestedLoopsJoinWithSolMapsRequests, BaseForExecOpParallelBindJoin, BaseForExecOpParallelBindJoinSPARQL, BaseForExecOpRequest, BaseForExecOpRequestWithPaging, BaseForExecOpRequestWithTPFPaging, BaseForExecOps, BaseForExecOpSequentialBindJoin, BaseForExecOpSequentialBindJoinSPARQL, BaseForExecOpTriplesRequest, BaseForUnaryExecOpWithCollectedInput, BinaryExecutableOpBase, ExecOpBinaryUnion, ExecOpBind, ExecOpDuplicateRemoval, ExecOpFilter, ExecOpGlobalToLocal, ExecOpHashJoin, ExecOpHashRJoin, ExecOpIndexNestedLoopsJoinSPARQL, ExecOpIndexNestedLoopsJoinTPF, ExecOpLocalToGlobal, ExecOpLookupJoinViaWrapperWithoutParamVars, ExecOpLookupJoinViaWrapperWithParamVars, ExecOpMultiwayUnion, ExecOpNaiveNestedLoopsJoin, ExecOpParallelBindJoinSPARQLwithFILTER, ExecOpParallelBindJoinSPARQLwithUNION, ExecOpParallelBindJoinSPARQLwithVALUES, ExecOpParallelMultiwayLeftJoin, ExecOpRequestBRTPF, ExecOpRequestOther, ExecOpRequestSPARQL, ExecOpRequestTPF, ExecOpSequentialBindJoinBRTPF, ExecOpSequentialBindJoinSPARQLwithFILTER, ExecOpSequentialBindJoinSPARQLwithUNION, ExecOpSequentialBindJoinSPARQLwithVALUES, ExecOpSequentialBindJoinSPARQLwithVALUESorFILTER, ExecOpSequentialBindJoinSPARQLwithVarRenaming, ExecOpSymmetricHashJoin, ExecOpUnfold, NaryExecutableOpBase, NullaryExecutableOpBase, UnaryExecutableOpBase, UnaryExecutableOpBaseWithoutBlocking

public interface ExecutableOperator
extends StatsProvider

An executable operator provides the implementation of the concrete algorithm that a physical operator is associated with. This interface is the top-level interface for all executable operators of HeFQUIN.

Method Summary

Modifier and Type	Method	Description
List<Exception>	getExceptionsCaughtDuringExecution()	Returns exceptions that were caught and collected during the execution of this operator (if any).
QueryPlanningInfo	getQueryPlanningInfo()	Returns the QueryPlanningInfo object that was populated for a physical plan whose root operator was the physical operator for which this executable operator was created.
ExecutableOperatorStats	getStats()

Methods inherited from interface se.liu.ida.hefquin.base.utils.StatsProvider

resetStats

Method Details

getStats

ExecutableOperatorStats getStats()

Specified by:

getStats in interface StatsProvider

getQueryPlanningInfo

QueryPlanningInfo getQueryPlanningInfo()

Returns the QueryPlanningInfo object that was populated for a physical plan whose root operator was the physical operator for which this executable operator was created.

Returns:

the QueryPlanningInfo object or null.

getExceptionsCaughtDuringExecution

List<Exception> getExceptionsCaughtDuringExecution()

Returns exceptions that were caught and collected during the execution of this operator (if any). If no exceptions were caught (which should be the normal case), then this function returns an empty list.