com.bigdata.rdf.sparql.ast

Class PropertyPathUnionNode

java.lang.Object

com.bigdata.bop.CoreBaseBOp

com.bigdata.bop.ModifiableBOpBase

com.bigdata.rdf.sparql.ast.ASTBase

com.bigdata.rdf.sparql.ast.QueryNodeBase

com.bigdata.rdf.sparql.ast.GroupMemberNodeBase<E>

com.bigdata.rdf.sparql.ast.GroupNodeBase<E>

com.bigdata.rdf.sparql.ast.GraphPatternGroup<JoinGroupNode>

com.bigdata.rdf.sparql.ast.UnionNode

com.bigdata.rdf.sparql.ast.PropertyPathUnionNode

All Implemented Interfaces:

BOp, IBindingProducerNode, IGroupMemberNode, IGroupNode<JoinGroupNode>, IJoinNode, IQueryNode, IReorderableNode, IVariableBindingRequirements, IPropertySet, Serializable, Cloneable, Iterable<JoinGroupNode>

public class PropertyPathUnionNode
extends UnionNode

This node is purely to trick the ASTJoinOrderByTypeOptimizer - we need to keep the property path stuff in the right order, even the UNIONs.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class com.bigdata.rdf.sparql.ast.GraphPatternGroup

GraphPatternGroup.Annotations

Nested classes/interfaces inherited from interface com.bigdata.rdf.sparql.ast.IQueryNode

IQueryNode.Annotations

Field Summary

Fields inherited from class com.bigdata.bop.CoreBaseBOp

DEFAULT_INITIAL_CAPACITY

Fields inherited from interface com.bigdata.bop.BOp

NOANNS, NOARGS

Constructor Summary

Constructors

Constructor and Description
PropertyPathUnionNode() Construct a non-optional union.
PropertyPathUnionNode(BOp[] args, Map<String,Object> anns) Required shallow copy constructor.
PropertyPathUnionNode(PropertyPathUnionNode op) Constructor required for com.bigdata.bop.BOpUtility#deepCopy(FilterNode).

Method Summary

Methods inherited from class com.bigdata.rdf.sparql.ast.UnionNode

addArg, addArg, addChild, getDesiredBound, getEstimatedCardinality, getRequiredBound, isMinus, isOptional, isReorderable, replaceWith

Methods inherited from class com.bigdata.rdf.sparql.ast.GraphPatternGroup

getChildren, getJoinVars, getProjectInVars, setJoinVars, setProjectInVars

Methods inherited from class com.bigdata.rdf.sparql.ast.GroupNodeBase

clone, getAttachedJoinFilters, getChildren, isEmpty, iterator, removeArg, removeChild, setArg, setAttachedJoinFilters, size, toString

Methods inherited from class com.bigdata.rdf.sparql.ast.GroupMemberNodeBase

getContext, getParent, getParentGraphPatternGroup, getParentJoinGroup, setParent

Methods inherited from class com.bigdata.rdf.sparql.ast.QueryNodeBase

getQueryHints, toString

Methods inherited from class com.bigdata.rdf.sparql.ast.ASTBase

addExplainHint, getExplainHints, getQueryHint, getQueryHint, getQueryHintAsBoolean, getQueryHintAsBoolean, getQueryHintAsInteger, replaceAllWith, setQueryHint, setQueryHints

Methods inherited from class com.bigdata.bop.ModifiableBOpBase

addArgIfAbsent, annotations, annotationsEqual, argIterator, args, arity, clearProperty, copyAll, get, getProperty, indexOf, setArgs, setId, setProperty, setUnboundProperty, toArray, toArray

Methods inherited from class com.bigdata.bop.CoreBaseBOp

annotationsEqual, annotationsToString, annotationsToString, annotationValueToString, checkArgs, equals, getEvaluationContext, getId, getProperty, getRequiredProperty, hashCode, indent, isController, mutation, shortenName, toShortString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.bigdata.rdf.sparql.ast.IGroupMemberNode

getContext, getParent, getParentGraphPatternGroup, getParentJoinGroup, setParent

Methods inherited from interface com.bigdata.rdf.sparql.ast.IQueryNode

toString

Methods inherited from interface com.bigdata.bop.BOp

annotations, argIterator, args, arity, clone, get, getEvaluationContext, getId, getProperty, getRequiredProperty, isController, setProperty, toArray, toArray, toShortString, toString

Methods inherited from interface cutthecrap.utils.striterators.IPropertySet

getProperty

Methods inherited from interface com.bigdata.rdf.sparql.ast.IJoinNode

getAttachedJoinFilters, setAttachedJoinFilters

Constructor Detail

PropertyPathUnionNode

public PropertyPathUnionNode(PropertyPathUnionNode op)

Constructor required for com.bigdata.bop.BOpUtility#deepCopy(FilterNode).

PropertyPathUnionNode

public PropertyPathUnionNode(BOp[] args,
                     Map<String,Object> anns)

Required shallow copy constructor.

PropertyPathUnionNode

public PropertyPathUnionNode()

Construct a non-optional union.