Interface QueryRef

All Known Subinterfaces:

ExclusiveTupleExpr, ExclusiveTupleExprRenderer, FedXTupleExpr, StatementTupleExpr

All Known Implementing Classes:

CheckStatementPattern, EmptyNJoin, EmptyNUnion, ExclusiveArbitraryLengthPath, ExclusiveGroup, ExclusiveStatement, FederatedDescribeOperator, FedXArbitraryLengthPath, FedXStatementPattern, FedXZeroLengthPath, NJoin, NTuple, NUnion, PassThroughTupleExpr, SingleSourceQuery, StatementSourcePattern

public interface QueryRef

Interface to access the QueryInfo from all FedX Algebra nodes. All FedX Algebra nodes should implement this interface.

Author:

Andreas Schwarte

Method Summary

Modifier and Type	Method	Description
QueryInfo	getQueryInfo()	Retrieve the attached query information of the tuple expression

Method Details

getQueryInfo

QueryInfo getQueryInfo()

Retrieve the attached query information of the tuple expression

Returns:

the QueryInfo