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DeploymentExtensionNode.javaAPI DocGlassfish v2 API5765Fri May 04 22:31:38 BST 2007com.sun.enterprise.deployment.node

DeploymentExtensionNode

public class DeploymentExtensionNode extends DeploymentDescriptorNode
This node is responsible for handling the deployment-extension xml fragment
author
Jerome Dochez

Fields Summary
Constructors Summary
Methods Summary
public voidaddDescriptor(java.lang.Object descriptor)
Adds a new DOL descriptor instance to the descriptor instance associated with this XMLNode

param
descriptor the new descriptor

        // done is getHandlerFor
protected java.util.MapgetDispatchTable()
all sub-implementation of this class can use a dispatch table to map xml element to method name on the descriptor class for setting the element value.

return
the map with the element name as a key, the setter method as a value

    
        Map table = super.getDispatchTable();
        table.put(TagNames.NAMESPACE, "setNameSpace");
        return table;
public XMLNodegetHandlerFor(XMLElement element)

return
the handler registered for the subtag element of the curent XMLNode

        ExtensionElementNode subNode = new ExtensionElementNode();        
        DeploymentExtensionDescriptor o = (DeploymentExtensionDescriptor) getDescriptor();
        o.addElement((ExtensionElementDescriptor) subNode.getDescriptor());
        subNode.setXMLRootTag(new XMLElement(TagNames.EXTENSION_ELEMENT));
        subNode.setParentNode(this);
        return subNode;
public booleanhandlesElement(XMLElement element)

return
true if the element tag can be handled by any registered sub nodes of the current XMLNode

        if (TagNames.EXTENSION_ELEMENT.equals(element.getQName())) {
            return false;
        } 
        return true;
public voidsetElementValue(XMLElement element, java.lang.String value)
receives notification of the value for a particular tag

param
element the xml element
param
value it's associated value

        if (TagNames.MUST_UNDERSTAND.equals(element.getQName())) {
            if ("true".equals(value)) {
                throw new RuntimeException("a deployment-extension tagged with mustUnderstand attribute is not understood");
            }
        } else 
            super.setElementValue(element, value);
protected voidwriteDescriptor(org.w3c.dom.Node parentNode, java.util.Iterator itr)
write the deployment extensions nodes associated with this node

param
parent node for the DOM tree
param
iterator of deployment extension descriptor

  
        
        ExtensionElementNode subNode = new ExtensionElementNode();
        do { 
            DeploymentExtensionDescriptor descriptor = (DeploymentExtensionDescriptor) itr.next();
            Element extensionNode = appendChild(parentNode, TagNames.DEPLOYMENT_EXTENSION);    
            setAttribute(extensionNode, TagNames.NAMESPACE, descriptor.getNameSpace());
            if (descriptor.getMustUnderstand()) {
                setAttribute(extensionNode, TagNames.MUST_UNDERSTAND, "true");
            }
            for (Iterator elements = descriptor.elements();elements.hasNext();) {      
                ExtensionElementDescriptor element = (ExtensionElementDescriptor) elements.next();
                subNode.writeDescriptor(extensionNode, TagNames.EXTENSION_ELEMENT, element );
            }
        } while(itr.hasNext());