com.hp.hpl.jena.graph
Class Node_NULL

java.lang.Object
  com.hp.hpl.jena.graph.Node
      com.hp.hpl.jena.graph.Node_Concrete
          com.hp.hpl.jena.graph.Node_NULL

public class Node_NULL
extends Node_Concrete

The Highlander Node_NULL exists for the database code (as a Node that coresponds to a null in database tables for the reification code).

Author:

kers

Nested Class Summary

Nested classes/interfaces inherited from class com.hp.hpl.jena.graph.Node

Node.NotLiteral

Field Summary

Fields inherited from class com.hp.hpl.jena.graph.Node

ANY, NULL

Method Summary

boolean	equals(java.lang.Object other) Node_NULL's are equal to no null nodes; strictly speaking, this incorrect but suits our purposes.
java.lang.String	toString() Answer a human-readable representation of this Node.
java.lang.Object	visitWith(NodeVisitor v) Visit a Node and dispatch on it to the appropriate method from the NodeVisitor v.

Methods inherited from class com.hp.hpl.jena.graph.Node_Concrete

isConcrete

Methods inherited from class com.hp.hpl.jena.graph.Node

cache, create, createAnon, createAnon, createLiteral, createLiteral, createLiteral, createLiteral, createUncachedLiteral, createURI, createVariable, getBlankNodeId, getBlankNodeLabel, getIndexingValue, getLiteral, getLiteralDatatype, getLiteralDatatypeURI, getLiteralIsXML, getLiteralLanguage, getLiteralLexicalForm, getLiteralValue, getLocalName, getName, getNameSpace, getType, getURI, hashCode, hasURI, isBlank, isLiteral, isURI, isVariable, matches, sameValueAs, toString, toString, toString

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Method Detail

equals

public boolean equals(java.lang.Object other)

Node_NULL's are equal to no null nodes; strictly speaking, this incorrect but suits our purposes. really want an isNull method on Node but that's too much surgery.

Specified by:

equals in class Node

visitWith

public java.lang.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

toString

public java.lang.String toString()

Description copied from class: Node

Answer a human-readable representation of this Node. It will not compress URIs, nor quote literals (because at the moment too many places use toString() for something machine-oriented).

Overrides:

toString in class Node