Package org.apache.jena.graph

Class Node_Ext<X>

java.lang.Object

org.apache.jena.graph.Node

org.apache.jena.graph.Node_Ext<X>

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

Node_Marker

public abstract class Node_Ext<X>
extends Node

Extension to the RDF Data model. This class and any subclasses exist for experimentation and custom extensions. There is no support for them within Apache Jena.

Extension nodes exist so that the machinery of datastructures (graphs, triples) can be used. There is no guarantee that processing Nodes (e.g. writing) will handle extensions.

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

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)	Nodes only equal other Nodes that have equal labels.
X	get()
int	hashCode()
boolean	isConcrete()	Answer true iff this node is concrete, ie not variable, ie URI, blank, or literal.
boolean	isExt()	Extension 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

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Method Details

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

isConcrete

public boolean isConcrete()

Description copied from class: Node

Answer true iff this node is concrete, ie not variable, ie URI, blank, or literal.

Specified by:

isConcrete in class Node

get

public X get()

isExt

public boolean isExt()

Description copied from class: Node

Extension node. Typically used in data structures based on triples.

Overrides:

isExt in class Node

hashCode

public int hashCode()

Overrides:

hashCode in class Node

equals

public boolean equals(Object obj)

Description copied from class: Node

Nodes only equal other Nodes that have equal labels.

Specified by:

equals in class Node