com.bigdata.bop.controller

Interface NamedSetAnnotations

All Known Subinterfaces:

HashIndexOp.Annotations, HashIndexOpBase.Annotations, HashJoinOp.Annotations, HTreeDistinctBindingSetsOp.Annotations, HTreeHashJoinOp.Annotations, HTreeMergeJoin.Annotations, HTreeNamedSubqueryOp.Annotations, JVMHashJoinOp.Annotations, JVMMergeJoin.Annotations, JVMNamedSubqueryOp.Annotations, NestedLoopJoinOp.Annotations, PipelinedHashIndexAndSolutionSetJoinOp.Annotations, SolutionSetHashJoinOp.Annotations

public interface NamedSetAnnotations

Attributes for named solution set processing.

Version:

$Id$

Author:

Bryan Thompson

Field Summary

Fields

Modifier and Type	Field and Description
static String	NAMED_SET_REF The name of IQueryAttributes attribute under which the INamedSolutionSetRef can be located.

Field Detail

NAMED_SET_REF

static final String NAMED_SET_REF

The name of IQueryAttributes attribute under which the INamedSolutionSetRef can be located. That INamedSolutionSetRef may be used to locate the IHashJoinUtility, which includes metadata about the hash index and encapsulates the hash index state. It may also be used to identify a named index that will be resolved against the SPARQL CACHE, the local index manager, or the federation index manager (on a cluster).

The attribute name includes the query UUID. The query UUID must be extracted and used to lookup the IRunningQuery to which the solution set was attached.

Note: For a MERGE JOIN, the value under this attribute is a INamedSolutionSetRef[].

See Also:

INamedSolutionSetRef, BOpContext#getAlternateSource(PipelineOp, INamedSolutionSetRef), Constant Field Values