Examples of NamespaceHandler

org.apache.aries.blueprint.NamespaceHandler

A processor for custom blueprint extensions Namespace handlers must be registered in the OSGi service registry with the osgi.service.blueprint.namespace service property denoting the namespace URIs this handler can process. The service property value can be either a single String or URI, or a Collection respectively array of String or URI. During parsing when the blueprint extender encounters an element from a non-blueprint namespace it will search for a namespace handler for the namespace that is compatible with blueprint bundle being processed. Then for a stand-alone component the parser will invoke the parse method to create the Metadata for the xml element while for an element that is part of an existing component the parser will invoke the decorated method to augment the enclosing ComponentMetadata instance. Various utilities to interact with the blueprint parser are available to a namespace handler via the ParserContext argument passed to parse and decorate. Recommended behaviour:

New metadata objects should be created via calling ParserContext.createMetadata(..) and casting the returned object to the appropriate MutableComponentMetadata interface. This method ensures that the metadata object implements the interfaces necessary for other namespace handlers to be able to use the metadata object.
Also, to prevent id clashes, component ids should be generated by calling ParserContext.generateId().
A namespace handler should not return new metadata instances from the decorate method if the same result could also be achieved by operating on a MutableComponentMetadata instance.
A namespace handler should not assume the existence of predefined entries in the component definition registry such as blueprintBundle or blueprintBundleContext. In the case of a dry parse (i.e. a parse of the blueprint xml files without a backing OSGi bundle), these values will not be available

org.springframework.beans.factory.xml.NamespaceHandler

Base interface used by the {@link DefaultBeanDefinitionDocumentReader}for handling custom namespaces in a Spring XML configuration file.

Implementations are expected to return implementations of the {@link BeanDefinitionParser} interface for custom top-level tags andimplementations of the {@link BeanDefinitionDecorator} interface forcustom nested tags.

The parser will call {@link #parse} when it encounters a custom tagdirectly under the <beans> tags and {@link #decorate} whenit encounters a custom tag directly under a <bean> tag.

Developers writing their own custom element extensions typically will not implement this interface drectly, but rather make use of the provided {@link NamespaceHandlerSupport} class. @author Rob Harrop @author Erik Wiersma @since 2.0 @see DefaultBeanDefinitionDocumentReader @see NamespaceHandlerResolver

org.xhtmlrenderer.extend.NamespaceHandler

Provides knowledge specific to a certain document type, like resolving style-sheets @author Torbjörn Gannholm

    }


    private void processLink(RenderingContext c, Box box) {
        Element elem = box.getElement();
        if (elem != null) {
            NamespaceHandler handler = _sharedContext.getNamespaceHandler();
            String uri = handler.getLinkUri(elem);
            if (uri != null) {
                if (uri.length() > 1 && uri.charAt(0) == '#') {
                    String anchor = uri.substring(1);
                    Box target = _sharedContext.getBoxById(anchor);
                    if (target != null) {
                        PdfDestination dest = createDestination(c, target);


                        PdfAction action = new PdfAction();
                        if (!"".equals(handler.getAttributeValue(elem, "onclick"))) {
                            action = PdfAction.javaScript(handler.getAttributeValue(elem, "onclick"), _writer);
                        } else {
                            action.put(PdfName.S, PdfName.GOTO);
                            action.put(PdfName.D, dest);
                        }

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Examples of NamespaceHandler

Examples of org.xhtmlrenderer.extend.NamespaceHandler