Examples of org.jaxen.dom.NamespaceNode

org.jaxen.dom.NamespaceNode

Extension DOM2 node type for a Namespace Declaration.

This class implements the DOM2 {@link Node} interface toallow Namespace declarations to be included in the result set of an XPath selectNodes operation, even though DOM2 does not model Namespace declarations as separate nodes.

While all of the methods are implemented with reasonable defaults, there will be some unexpected surprises, so users are advised to test for NamespaceNodes and filter them out from the result sets as early as possible:

The {@link #getNodeType} method returns {@link #NAMESPACE_NODE}, which is not one of the usual DOM2 node types. Generic code may fall unexpectedly out of switch statements, for example.
The {@link #getOwnerDocument} method returns the owner documentof the parent node, but that owner document will know nothing about the Namespace node.
The {@link #isSupported} method always returns false.

All attempts to modify a NamespaceNode will fail with a {@link DOMException} ({@link DOMException#NO_MODIFICATION_ALLOWED_ERR}).

This class has only protected constructors, so that it can be instantiated only by {@link DocumentNavigator}.

@author David Megginson @see DocumentNavigator

        List result = xpath.selectNodes(doc);
        assertEquals(8, result.size());
        Iterator iterator = result.iterator();
        StringBuffer sb = new StringBuffer(4);
        while (iterator.hasNext()) {
            NamespaceNode ns = (NamespaceNode) iterator.next();
            if (ns.getNodeValue().equals("http://www.example.org/")) {
                String name = ns.getNodeName();
                sb.append(name);
            }
        }
        assertEquals("abcd", sb.toString());

        List result = xpath.selectNodes(doc);
        assertEquals(8, result.size());
        Iterator iterator = result.iterator();
        StringBuffer sb = new StringBuffer(4);
        while (iterator.hasNext()) {
            NamespaceNode ns = (NamespaceNode) iterator.next();
            if (ns.getNodeValue().equals("http://www.example.org/")) {
                String name = ns.getNodeName();
                sb.append(name);
            }
        }
        assertEquals("abcd", sb.toString());

        XPath xpath = new DOMXPath("namespace::node()");
        List result = xpath.selectNodes(root);
        
        Iterator iterator = result.iterator();
        while (iterator.hasNext()) {
            NamespaceNode node = (NamespaceNode) iterator.next();
            if (node.getLocalName() == null) rootNS = node;
            else if (node.getLocalName().equals("xml")) xmlNS = node;
            else if (node.getLocalName().equals("pre")) attributeNS = node;
        }
        
    }

Examples of org.jaxen.dom.NamespaceNode

Related Classes of org.jaxen.dom.NamespaceNode