Package org.apache.jena.sparql.core

Class Var

java.lang.Object

org.apache.jena.graph.Node

org.apache.jena.graph.Node_Fluid

org.apache.jena.graph.Node_Variable

org.apache.jena.sparql.core.Var

All Implemented Interfaces:

java.io.Serializable

public class Var
extends Node_Variable

A SPARQL variable

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.jena.graph.Node_Variable

Node_Variable.VariableName

Nested classes/interfaces inherited from class org.apache.jena.graph.Node

Node.NotLiteral

Field Summary

Fields

Modifier and Type	Field	Description
static Var	ANON

Fields inherited from class org.apache.jena.graph.Node

ANY

Method Summary

Modifier and Type	Method	Description
static Var	alloc(java.lang.String varName)
static Var	alloc(Node v)
static Var	alloc(Node_Variable v)
static Var	alloc(Var v)
static Var	alloc(ExprVar nv)
Node	asNode()
static java.lang.String	canonical(java.lang.String x)
boolean	equals(java.lang.Object other)
java.lang.String	getVarName()
int	hashCode()
boolean	isAllocVar()
static boolean	isAllocVar(Node node)
static boolean	isAllocVarName(java.lang.String x)
boolean	isAnonVar()
static boolean	isAnonVar(Var var)
boolean	isBlankNodeVar()
static boolean	isBlankNodeVar(Node node)
static boolean	isBlankNodeVarName(java.lang.String x)
boolean	isNamedVar()
static boolean	isNamedVar(Node node)
static boolean	isNamedVarName(java.lang.String x)
static boolean	isRenamedVar(java.lang.String x)
static boolean	isRenamedVar(Node node)
static boolean	isVar(Node node)
static Node	lookup(java.util.function.Function<Var,Node> access, Node node)	Return the value of the access function or node itself.
static Node	lookup(java.util.function.Function<Var,Node> access, Var var)	Return the value of the access function or var itself.
static Node	lookup(Binding binding, Node node)	Return the value in the binding (if node is a Var) or the node itself.
static Node	lookup(Binding binding, Var var)	Return the value in the binding or the variable itself.
static java.util.List<Var>	varList(java.util.Collection<java.lang.String> varNames)	Convert a collection of variable names to variables
static java.util.List<java.lang.String>	varNames(java.util.Collection<Var> vars)	Return a list of String names from a collection of variables

Methods inherited from class org.apache.jena.graph.Node_Variable

getName, isVariable, toString, variable, visitWith

Methods inherited from class org.apache.jena.graph.Node_Fluid

isConcrete

Methods inherited from class org.apache.jena.graph.Node

getBlankNodeId, getBlankNodeLabel, getGraph, getIndexingValue, getLiteral, getLiteralDatatype, getLiteralDatatypeURI, getLiteralIsXML, getLiteralLanguage, getLiteralLexicalForm, getLiteralValue, getLocalName, getNameSpace, getTriple, getURI, hasURI, isBlank, isLiteral, isNodeGraph, isNodeTriple, isURI, matches, sameValueAs, toString, toString, toString

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Field Detail

ANON

public static Var ANON

Method Detail

alloc

public static Var alloc(java.lang.String varName)

alloc

public static Var alloc(Node_Variable v)

alloc

public static Var alloc(Node v)

alloc

public static Var alloc(Var v)

alloc

public static Var alloc(ExprVar nv)

lookup

public static Node lookup(Binding binding,
                          Node node)

Return the value in the binding (if node is a Var) or the node itself.

lookup

public static Node lookup(Binding binding,
                          Var var)

Return the value in the binding or the variable itself.

lookup

public static Node lookup(java.util.function.Function<Var,Node> access,
                          Node node)

Return the value of the access function or node itself.

lookup

public static Node lookup(java.util.function.Function<Var,Node> access,
                          Var var)

Return the value of the access function or var itself.

asNode

public Node asNode()

getVarName

public java.lang.String getVarName()

hashCode

public final int hashCode()

Overrides:

hashCode in class Node

equals

public final boolean equals(java.lang.Object other)

Overrides:

equals in class Node_Variable

isNamedVar

public boolean isNamedVar()

isBlankNodeVar

public boolean isBlankNodeVar()

isAllocVar

public boolean isAllocVar()

isAnonVar

public boolean isAnonVar()

canonical

public static java.lang.String canonical(java.lang.String x)

isVar

public static boolean isVar(Node node)

isRenamedVar

public static boolean isRenamedVar(Node node)

isRenamedVar

public static boolean isRenamedVar(java.lang.String x)

isNamedVar

public static boolean isNamedVar(Node node)

isNamedVarName

public static boolean isNamedVarName(java.lang.String x)

isBlankNodeVar

public static boolean isBlankNodeVar(Node node)

isBlankNodeVarName

public static boolean isBlankNodeVarName(java.lang.String x)

isAllocVar

public static boolean isAllocVar(Node node)

isAllocVarName

public static boolean isAllocVarName(java.lang.String x)

varList

public static java.util.List<Var> varList(java.util.Collection<java.lang.String> varNames)

Convert a collection of variable names to variables

isAnonVar

public static boolean isAnonVar(Var var)

varNames

public static java.util.List<java.lang.String> varNames(java.util.Collection<Var> vars)

Return a list of String names from a collection of variables