Class MergeOptionalIntoPrecedingGraphTransform

java.lang.Object

org.eclipse.rdf4j.queryrender.sparql.ir.util.transform.BaseTransform

org.eclipse.rdf4j.queryrender.sparql.ir.util.transform.MergeOptionalIntoPrecedingGraphTransform

public final class MergeOptionalIntoPrecedingGraphTransform
extends BaseTransform

Merge a simple OPTIONAL body that explicitly targets the same GRAPH as the preceding GRAPH block into that block, i.e., GRAPH ?g { ... } OPTIONAL { GRAPH ?g { simple } } → GRAPH ?g { ... OPTIONAL { simple } } Only applies to "simple" OPTIONAL bodies to avoid changing intended scoping or reordering more complex shapes.

Field Summary

Fields inherited from class BaseTransform

ANON_PATH_INVERSE_PREFIX, ANON_PATH_PREFIX

Method Summary

Modifier and Type	Method	Description
static IrBGP	apply(IrBGP bgp)
static boolean	isSimpleOptionalBody(IrBGP ow)

Methods inherited from class BaseTransform

bgpWithLines, branchHasAnonPathBridge, copyAllExcept, fuseAdjacentPtThenPt, fuseAdjacentSpThenPt, fuseAltInverseTailBGP, fusePtSpPtSequence, invertNegatedPropertySet, iri, isAnonPathInverseVar, isAnonPathVar, isConstantIriPredicate, joinPathWithLaterSp, mergeNpsMembers, normalizeCompactNps, orientBareNpsForNext, rewriteContainers, sameVar, sameVarOrValue, unionBranchesAllHaveAnonPathBridge, unionBranchesShareAnonPathVarWithAllowedRoleMapping, unionBranchesShareCommonAnonPathVarName, unionIsExplicitAndAllBranchesScoped, varOrValue

Methods inherited from class Object

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

Method Details

apply

public static IrBGP apply(IrBGP bgp)

isSimpleOptionalBody

public static boolean isSimpleOptionalBody(IrBGP ow)