Uses of Interface
com.bigdata.rdf.sparql.ast.IJoinNode

Packages that use IJoinNode

Package	Description
com.bigdata.rdf.sparql.ast	This package contains an Abstract Syntax Tree which provides an intermediate translation target for SPARQL parsers.
com.bigdata.rdf.sparql.ast.eval
com.bigdata.rdf.sparql.ast.service	This package provides support for SPARQL 1.1 Federated Query, including the special case of "service" end points which live within the same JVM and use direct method calls rather than SPARQL Query and remote (HTTP) end points for which we will generate an appropriate SPARQL query.

Uses of IJoinNode in com.bigdata.rdf.sparql.ast

Classes in com.bigdata.rdf.sparql.ast that implement IJoinNode

Modifier and Type	Class and Description
class	BindingsClause The solutions declared by a BINDINGS clause.
class	GraphPatternGroup<E extends IGroupMemberNode> Join group or union.
class	JoinGroupNode An optional or non-optional collection of query nodes that run together in a group.
class	NamedSubqueryInclude An AST node which provides a reference in an IGroupNode and indicates that a named solution set should be joined with the solutions in the group.
class	PropertyPathUnionNode This node is purely to trick the ASTJoinOrderByTypeOptimizer - we need to keep the property path stuff in the right order, even the UNIONs.
class	StatementPatternNode A node in the AST representing a statement pattern.
class	SubqueryRoot A SPARQL 1.1 style subquery.
class	UnionNode A special kind of group IGroupNode that represents the sparql union operator.

Fields in com.bigdata.rdf.sparql.ast declared as IJoinNode

Modifier and Type	Field and Description
IJoinNode[]	JoinSetUtil.requiredJoins An array of the vertices for the required joins in the group.

Methods in com.bigdata.rdf.sparql.ast with parameters of type IJoinNode

Modifier and Type	Method and Description
boolean	StaticAnalysis_CanJoin.canJoin(IJoinNode p1, IJoinNode p2) Return true iff two predicates can join on the basis of at least one variable which is shared directly by those predicates.
boolean	StaticAnalysis_CanJoin.canJoinUsingConstraints(IJoinNode[] path, IJoinNode vertex, FilterNode[] constraints) Return true iff a predicate may be used to extend a join path on the basis of at least one variable which is shared either directly or via one or more constraints which may be attached to the predicate when it is added to the join path.
boolean	StaticAnalysis_CanJoin.canJoinUsingConstraints(IJoinNode[] path, IJoinNode vertex, FilterNode[] constraints) Return true iff a predicate may be used to extend a join path on the basis of at least one variable which is shared either directly or via one or more constraints which may be attached to the predicate when it is added to the join path.
FilterNode[][]	StaticAnalysis_CanJoin.getJoinGraphConstraints(IJoinNode[] path, FilterNode[] joinGraphConstraints, Set<IVariable<?>> boundVars, boolean pathIsComplete) Given a join path, return the set of constraints to be associated with each join in that join path.

Uses of IJoinNode in com.bigdata.rdf.sparql.ast.eval

Methods in com.bigdata.rdf.sparql.ast.eval with parameters of type IJoinNode

Modifier and Type	Method and Description
protected static List<IConstraint>	AST2BOpFilters.getJoinConstraints(IJoinNode joinNode) Convert the attached join filters into a list of IConstraints.

Uses of IJoinNode in com.bigdata.rdf.sparql.ast.service

Classes in com.bigdata.rdf.sparql.ast.service that implement IJoinNode

Modifier and Type	Class and Description
class	ServiceNode An extension point for external service calls which produce solution multisets (a SPARQL SERVICE).