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

Packages that use IValueExpressionNode

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.optimizers

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

Classes in com.bigdata.rdf.sparql.ast with type parameters of type IValueExpressionNode

Modifier and Type	Class and Description
class	ValueExpressionListBaseNode<E extends IValueExpressionNode> Base class for AST nodes which model an ordered list of value expressions.

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

Modifier and Type	Class and Description
class	AssignmentNode AST node models the assignment of a value expression to a variable
class	ConstantNode Used to represent a constant in the AST.
class	DummyConstantNode The dummy constant node is used to represent constants in the AST that do not actually exist in the database.
class	ExistsNode A special function node for modeling EXISTS.
class	FunctionNode AST node for anything which is neither a constant nor a variable, including math operators, string functions, etc.
class	NotExistsNode A special function node for modeling NOT EXISTS.
class	SubqueryFunctionNodeBase A special function node for modeling value expression nodes which are evaluated against an inner graph expression, such as EXISTS and NOT EXISTS.
class	TermNode Used to represent a variable or constant in the AST (a term in a statement pattern for example).
class	ValueExpressionNode AST node for value expressions.
class	VarNode Used to represent a variable in the AST.

Methods in com.bigdata.rdf.sparql.ast that return IValueExpressionNode

Modifier and Type	Method and Description
abstract IValueExpressionNode	GroupMemberValueExpressionNodeBase.getValueExpressionNode()
IValueExpressionNode	IValueExpressionNodeContainer.getValueExpressionNode() Return the value expression node.
IValueExpressionNode	FilterNode.getValueExpressionNode()
IValueExpressionNode	AssignmentNode.getValueExpressionNode() Return the value expression node.
IValueExpressionNode	OrderByExpr.getValueExpressionNode()
static IValueExpressionNode	StaticAnalysis.pushDisjuncts(IValueExpressionNode vexp) Recursively pushes logical ORs below logical ANDs in the operator tree, such that in the returned node all OR expressions are situated below AND expressions.
static IValueExpressionNode	StaticAnalysis.pushNegations(IValueExpressionNode vexp) Recursively pushes negations down the operator tree, such that in the returned node, negations are always at the bottom of the tree.
static IValueExpressionNode	StaticAnalysis.toCNF(IValueExpressionNode vexpr) Returns the corresponding (equivalent) value expression in CNF.
static IValueExpressionNode	StaticAnalysis.toConjunctiveValueExpression(List<IValueExpressionNode> conjuncts) Constructs an (unbalanced) tree out of the list of conjuncts.

Methods in com.bigdata.rdf.sparql.ast that return types with arguments of type IValueExpressionNode

Modifier and Type	Method and Description
static List<IValueExpressionNode>	StaticAnalysis.extractToplevelConjuncts(IValueExpressionNode vexp, List<IValueExpressionNode> nodes) Extracts all AND-connected conjuncts located at the top of a given value expression node (recursively, unless an operator different from AND is encountered).

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

Modifier and Type	Method and Description
static List<IValueExpressionNode>	StaticAnalysis.extractToplevelConjuncts(IValueExpressionNode vexp, List<IValueExpressionNode> nodes) Extracts all AND-connected conjuncts located at the top of a given value expression node (recursively, unless an operator different from AND is encountered).
static boolean	StaticAnalysis.isCNF(IValueExpressionNode vexpr) Checks whether the given value expression node is in CNF.
static IValueExpressionNode	StaticAnalysis.pushDisjuncts(IValueExpressionNode vexp) Recursively pushes logical ORs below logical ANDs in the operator tree, such that in the returned node all OR expressions are situated below AND expressions.
static IValueExpressionNode	StaticAnalysis.pushNegations(IValueExpressionNode vexp) Recursively pushes negations down the operator tree, such that in the returned node, negations are always at the bottom of the tree.
static IValueExpressionNode	StaticAnalysis.toCNF(IValueExpressionNode vexpr) Returns the corresponding (equivalent) value expression in CNF.

Method parameters in com.bigdata.rdf.sparql.ast with type arguments of type IValueExpressionNode

Modifier and Type	Method and Description
static List<IValueExpressionNode>	StaticAnalysis.extractToplevelConjuncts(IValueExpressionNode vexp, List<IValueExpressionNode> nodes) Extracts all AND-connected conjuncts located at the top of a given value expression node (recursively, unless an operator different from AND is encountered).
static IValueExpressionNode	StaticAnalysis.toConjunctiveValueExpression(List<IValueExpressionNode> conjuncts) Constructs an (unbalanced) tree out of the list of conjuncts.

Constructors in com.bigdata.rdf.sparql.ast with parameters of type IValueExpressionNode

Constructor and Description
AssignmentNode(VarNode var, IValueExpressionNode ve)
FilterNode(IValueExpressionNode ve)
OrderByExpr(IValueExpressionNode ve, boolean ascending)
RangeNode(VarNode var, IValueExpressionNode from, IValueExpressionNode to) Set the bounds now.

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

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

Modifier and Type	Method and Description
static IValueExpression<? extends IV>	AST2BOpUtility.toVE(BOpContextBase context, GlobalAnnotations globals, IValueExpressionNode node) Convert an IValueExpressionNode (recursively) to an IValueExpression.

Uses of IValueExpressionNode in com.bigdata.rdf.sparql.ast.optimizers

Methods in com.bigdata.rdf.sparql.ast.optimizers that return IValueExpressionNode

Modifier and Type	Method and Description
protected IValueExpressionNode	AbstractOptimizerTestCase.Helper.functionNode(String uri, ValueExpressionNode... args) Return a FunctionNode
protected IValueExpressionNode	AbstractOptimizerTestCase.Helper.functionNode(org.openrdf.model.URI uri, ValueExpressionNode... args) Return a FunctionNode

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

Modifier and Type	Method and Description
protected AssignmentNode	AbstractOptimizerTestCase.Helper.bind(IValueExpressionNode valueNode, VarNode varNode) BIND(expression AS variable)
List<FilterNode>	ASTFilterNormalizationOptimizer.constructFiltersForValueExpressionNode(IValueExpressionNode vexp, List<FilterNode> filters) Construct FILTERs for the given value expression node, exploiting AND nodes at the top to split the node into multiple filters (if possible).
protected FilterNode	AbstractOptimizerTestCase.Helper.filter(IValueExpressionNode f)
boolean	ASTFilterNormalizationOptimizer.isDecomposable(IValueExpressionNode vexpr) Checks if there might be potential for decomposing the filter (overestimation).