com.hp.hpl.jena.rdf.model
Class EmptyListUpdateException

java.lang.Object
  java.lang.Throwable
      java.lang.Exception
          java.lang.RuntimeException
              com.hp.hpl.jena.shared.JenaException
                  com.hp.hpl.jena.rdf.model.EmptyListUpdateException

All Implemented Interfaces:

java.io.Serializable

public class EmptyListUpdateException

extends com.hp.hpl.jena.shared.JenaException

Exception that is thrown when an attept is made to perform a side-effectful operation on an RDFList that is the empty list, or rdf:nil. This is not permissible, since it would cause the URI of the RDFList to change from rdf:nil to a new bNode, and in Jena the URI of a node is invariant. To avoid this operation, when extending an empty list use operations that return the updated list (such as RDFList.cons(com.hp.hpl.jena.rdf.model.RDFNode), or RDFList.with(com.hp.hpl.jena.rdf.model.RDFNode), or check first to see if the list is empty, and replace it with a non-null list.

Version:

CVS $Id: EmptyListUpdateException.java,v 1.1 2003/06/16 13:40:13 ian_dickinson Exp $

Author:

Ian Dickinson, HP Labs (email)

See Also:

Serialized Form

Constructor Summary

EmptyListUpdateException()

EmptyListUpdateException(java.lang.String message)

Methods inherited from class com.hp.hpl.jena.shared.JenaException

getCause, printStackTrace, printStackTrace

Methods inherited from class java.lang.Throwable

fillInStackTrace, getLocalizedMessage, getMessage, getStackTrace, initCause, printStackTrace, setStackTrace, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

EmptyListUpdateException

public EmptyListUpdateException()

EmptyListUpdateException

public EmptyListUpdateException(java.lang.String message)