Package com.sun.enterprise.deployment.node.ejb

Source Code of com.sun.enterprise.deployment.node.ejb.RelationshipsNode

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* may not use this file except in compliance with the License. You can obtain
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* or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
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/*
* RelationshipsRole.java
*
* Created on February 1, 2002, 3:01 PM
*/

package com.sun.enterprise.deployment.node.ejb;

import java.util.Map;
import java.util.HashMap;
import java.util.Iterator;
import org.w3c.dom.Node;

import com.sun.enterprise.deployment.node.XMLElement;
import com.sun.enterprise.deployment.node.DeploymentDescriptorNode;

import com.sun.enterprise.deployment.Descriptor;
import com.sun.enterprise.deployment.EjbBundleDescriptor;
import com.sun.enterprise.deployment.RelationshipDescriptor;
import com.sun.enterprise.deployment.xml.EjbTagNames;

/**
* This class is responsible for handling the ejb-relationships xml element
*
* @author  Jerome Dochez
* @version
*/
public class RelationshipsNode extends DeploymentDescriptorNode {

    public RelationshipsNode() {
        super();
        registerElementHandler(new XMLElement(EjbTagNames.EJB_RELATION),
                                                            EjbRelationNode.class);                  
    }
   
   /**
    * @return the descriptor instance to associate with this XMLNode
    */   
    public Object getDescriptor() {
        return getParentNode().getDescriptor();
    }       
   
  
    /**
     * receives notification of the end of an XML element by the Parser
     *
     * @param element the xml tag identification
     * @return true if this node is done processing the XML sub tree
     */
    public boolean endElement(XMLElement element) {
        return element.equals(getXMLRootTag());
    }   
   
    /**
     * 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() {
        // no need to be synchronized for now
        Map table =  new HashMap();
        table.put(EjbTagNames.DESCRIPTION, "setRelationshipsDescription");
        return table;
    }   
   
    /**
     * write the relationships 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, EjbBundleDescriptor descriptor) {
        Node relationshipsNode = super.writeDescriptor(parent, nodeName, descriptor);
        appendTextChild(relationshipsNode, EjbTagNames.DESCRIPTION, descriptor.getRelationshipsDescription());
        EjbRelationNode subNode = new EjbRelationNode();
        for (Iterator e=descriptor.getRelationships().iterator();e.hasNext();) {
            RelationshipDescriptor rd = (RelationshipDescriptor) e.next();
            subNode.writeDescriptor(relationshipsNode, EjbTagNames.EJB_RELATION, rd);
        }
       
        return relationshipsNode;
    }
}
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