Module org.apache.jena.core

Package org.apache.jena.graph

Class Node_Blank

java.lang.Object

org.apache.jena.graph.Node

org.apache.jena.graph.Node_Blank

All Implemented Interfaces:

Serializable

public class Node_Blank
extends Node

RDF blank nodes. Blank nodes have identity but do not have a URIs or literal value.

See Also:

• Serialized Form

Nested Class Summary

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

Node.NotLiteral

Field Summary

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

ANY, noLangTag, noTextDirection

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)	Java rules for equals.
String	getBlankNodeLabel()	Answer the label of this blank node or throw an UnsupportedOperationException if it's not blank.
int	hashCode()
boolean	isBlank()	Answer true iff this node is a blank node [subclasses override]
boolean	isConcrete()	Answer true iff this node is concrete, meaning a node that is data in an RDF Graph.
String	toString()	Answer a human-readable representation of this Node.
String	toString(PrefixMapping pmap)	Answer a human-readable representation of the Node.
Object	visitWith(NodeVisitor v)	Visit a Node and dispatch on it to the appropriate method from the NodeVisitor v.

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

getGraph, getIndexingValue, getLiteral, getLiteralBaseDirection, getLiteralDatatype, getLiteralDatatypeURI, getLiteralLanguage, getLiteralLexicalForm, getLiteralValue, getLocalName, getName, getNameSpace, getTriple, getURI, hasURI, isExt, isLiteral, isNodeGraph, isNodeTriple, isTripleTerm, isURI, isVariable, matches, sameTermAs, sameValueAs

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Method Details

isBlank

public boolean isBlank()

Description copied from class: Node

Answer true iff this node is a blank node [subclasses override]

Overrides:

isBlank in class Node

getBlankNodeLabel

public String getBlankNodeLabel()

Description copied from class: Node

Answer the label of this blank node or throw an UnsupportedOperationException if it's not blank.

Overrides:

getBlankNodeLabel in class Node

isConcrete

public boolean isConcrete()

Description copied from class: Node

Answer true iff this node is concrete, meaning a node that is data in an RDF Graph.

Specified by:

isConcrete in class Node

visitWith

public Object visitWith(NodeVisitor v)

Description copied from class: Node

Visit a Node and dispatch on it to the appropriate method from the NodeVisitor v.

Specified by:

visitWith in class Node

Parameters:

v - the visitor to apply to the node

Returns:

the value returned by the applied method

hashCode

public int hashCode()

Specified by:

hashCode in class Node

equals

public boolean equals(Object obj)

Description copied from class: Node

Java rules for equals. See also {#sameTermAs} and {#sameValueAs}. Nodes only equal other Nodes that have equal labels.

Specified by:

equals in class Node

toString

public String toString(PrefixMapping pmap)

Description copied from class: Node

Answer a human-readable representation of the Node. For URIs, abbreviate URI. For literals, quoting literals and abbreviating datatype URI.

Specified by:

toString in class Node

toString

public String toString()

Description copied from class: Node

Answer a human-readable representation of this Node.

Specified by:

toString in class Node