Package com.sun.enterprise.deployment.node

Source Code of com.sun.enterprise.deployment.node.EjbReferenceNode

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package com.sun.enterprise.deployment.node;

import java.util.Map;

import org.w3c.dom.Node;

import com.sun.enterprise.deployment.Descriptor;
import com.sun.enterprise.deployment.EnvironmentProperty;
import com.sun.enterprise.deployment.InjectionTarget;
import com.sun.enterprise.deployment.types.EjbReference;
import com.sun.enterprise.deployment.xml.EjbTagNames;
import com.sun.enterprise.deployment.xml.TagNames;

/**
* This class handles all information in the ejb-reference xml node
*
* @author  Jerome Dochez
* @version
*/
public class EjbReferenceNode extends DeploymentDescriptorNode {

    protected EjbReference descriptor;
   
    public EjbReferenceNode() {
        super();
        registerElementHandler(new XMLElement(TagNames.INJECTION_TARGET),
                                InjectionTargetNode.class, "addInjectionTarget");                         
    }
       
    /**
    * @return the descriptor instance to associate with this XMLNode
    */   
    public Object getDescriptor() {
        if (descriptor==null) {
            descriptor = (EjbReference) DescriptorFactory.getDescriptor(getXMLPath());
            descriptor.setLocal(false);  
        }
        return descriptor;
    }   
   
    /**
     * 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
     */   
    protected Map getDispatchTable() {
        Map table = super.getDispatchTable();
        table.put(EjbTagNames.EJB_REFERENCE_NAME, "setName");
        table.put(EjbTagNames.EJB_REFERENCE_TYPE, "setType");
        table.put(EjbTagNames.HOME, "setEjbHomeInterface");
        table.put(EjbTagNames.REMOTE, "setEjbInterface");
        table.put(EjbTagNames.LOCAL_HOME, "setEjbHomeInterface");
        table.put(EjbTagNames.LOCAL, "setEjbInterface");       
        table.put(EjbTagNames.EJB_LINK, "setLinkName");
        table.put(TagNames.MAPPED_NAME, "setMappedName");
        return table;
    }       

    /**
     * write the descriptor class to a DOM tree and return it
     *
     * @param parent node in the DOM tree
     * @param node name for the root element of this xml fragment     
     * @param the descriptor to write
     * @return the DOM tree top node
     */
    public Node writeDescriptor(Node parent, String nodeName, EjbReference descriptor) {   
        Node ejbRefNode = appendChild(parent, nodeName);
        if (descriptor instanceof Descriptor) {
            Descriptor ejbRefDesc = (Descriptor)descriptor;
            writeLocalizedDescriptions(ejbRefNode, ejbRefDesc);
        }
        appendTextChild(ejbRefNode, EjbTagNames.EJB_REFERENCE_NAME, descriptor.getName());
        appendTextChild(ejbRefNode, EjbTagNames.EJB_REFERENCE_TYPE, descriptor.getType());
        if (descriptor.isLocal()) {
            appendTextChild(ejbRefNode, EjbTagNames.LOCAL_HOME, descriptor.getEjbHomeInterface());
            appendTextChild(ejbRefNode, EjbTagNames.LOCAL, descriptor.getEjbInterface());
        } else {
            appendTextChild(ejbRefNode, EjbTagNames.HOME, descriptor.getEjbHomeInterface());               
            appendTextChild(ejbRefNode, EjbTagNames.REMOTE, descriptor.getEjbInterface());
        }
        appendTextChild(ejbRefNode, EjbTagNames.EJB_LINK, descriptor.getLinkName());       

        if( descriptor instanceof EnvironmentProperty) {
            EnvironmentProperty envProp = (EnvironmentProperty)descriptor;
            appendTextChild(ejbRefNode, TagNames.MAPPED_NAME, envProp.getMappedName());
        }
        if( descriptor.isInjectable() ) {
            InjectionTargetNode ijNode = new InjectionTargetNode();
            for (InjectionTarget target : descriptor.getInjectionTargets()) {
                ijNode.writeDescriptor(ejbRefNode, TagNames.INJECTION_TARGET, target);
            }
        }

        return ejbRefNode;
    }       
       
}
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