DOM deferred node

[Venkata Pavan Kumar vemuri]

hi all,

I am trying to implement the deferred node concept of DOM parser

I have created an instance of Documentbuilderfactory and used it to set the deferred node property and classname as follows

dbf.setFeature("http://apache.org/xml/features/dom/defer-node-expansion", true );
dbf.setAttribute("http://apache.org/xml/properties/dom/document-class-name", "org.apache.xerces.dom.DocumentImpl" );

But I am getting the following error

Exception in thread "main" java.lang.IllegalArgumentException: MissingDocumentClassName: The class name of the document factory "org.apache.xerces.dom.DocumentImpl" used to construct the DOM tree could not be found.
at com.sun.org.apache.xerces.internal.parsers.AbstractDOMParser.setDocumentClassName(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.AbstractDOMParser.reset(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(Unknown Source)
at javax.xml.parsers.DocumentBuilder.parse(Unknown Source)
at DOMParserNV.DOMParser(DOMParserNV.java:35)
at DOMParserNV.main(DOMParserNV.java:69)


Can somebody please tell me wht is wrong with my implementation

Thanks in advance
Pavan

[William Brogden]

Which version of the Xerces-J library are you using?

Unfortunately, the JavaDocs I could find for org.apache.xerces.dom.DocumentImpl did not state when it was introduced.

Bill

[Venkata Pavan Kumar vemuri]

I am not using any xerces j library....

[Paul Clapham]

Then I suppose you will have to download one and put it in your classpath. Probably the latest version would work, but if wherever you heard about those properties mentions anything about some versions working and some not working, then pay attention to whatever it said.