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/*
* EjbRelationRole.java
*
* Created on February 1, 2002, 3:07 PM
*/
package com.sun.enterprise.deployment.node.ejb;
import java.util.Map;
import org.w3c.dom.Node;
import com.sun.enterprise.deployment.node.XMLElement;
import com.sun.enterprise.deployment.node.DeploymentDescriptorNode;
import com.sun.enterprise.deployment.node.LocalizedInfoNode;
import com.sun.enterprise.deployment.node.DescriptorFactory;
import com.sun.enterprise.deployment.Descriptor;
import com.sun.enterprise.deployment.RelationRoleDescriptor;
import com.sun.enterprise.deployment.RelationshipDescriptor;
import com.sun.enterprise.deployment.xml.EjbTagNames;
/**
*
* @author dochez
* @version
*/
public class EjbRelationNode extends DeploymentDescriptorNode {
RelationRoleDescriptor source = null;
RelationRoleDescriptor sink = null;
RelationshipDescriptor descriptor = null;
public EjbRelationNode() {
super();
registerElementHandler(new XMLElement(EjbTagNames.EJB_RELATIONSHIP_ROLE),
EjbRelationshipRoleNode.class);
}
/**
* @return the descriptor instance to associate with this XMLNode
*/
public Object getDescriptor() {
if (descriptor==null) {
descriptor = (RelationshipDescriptor) DescriptorFactory.getDescriptor(getXMLPath());
}
return descriptor;
}
/**
* Adds a new DOL descriptor instance to the descriptor instance associated with
* this XMLNode
*
* @param descriptor the new descriptor
*/
public void addDescriptor(Object newDescriptor) {
if (newDescriptor instanceof RelationRoleDescriptor) {
if (source==null) {
source = (RelationRoleDescriptor) newDescriptor;
} else {
sink = (RelationRoleDescriptor) newDescriptor;
descriptor.setSource(source);
source.setPartner(sink);
source.setRelationshipDescriptor(descriptor);
descriptor.setSink(sink);
sink.setPartner(source);
sink.setRelationshipDescriptor(descriptor);
if ( source.getCMRField() != null && sink.getCMRField() != null )
descriptor.setIsBidirectional(true);
else
descriptor.setIsBidirectional(false);
}
}
}
/**
* 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 = super.getDispatchTable();
table.put(EjbTagNames.EJB_RELATION_NAME, "setName");
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, RelationshipDescriptor descriptor) {
Node ejbRelationNode = super.writeDescriptor(parent, nodeName, descriptor);
writeLocalizedDescriptions(ejbRelationNode, descriptor);
appendTextChild(ejbRelationNode, EjbTagNames.EJB_RELATION_NAME, descriptor.getName());
EjbRelationshipRoleNode roleNode = new EjbRelationshipRoleNode();
roleNode.writeDescriptor(ejbRelationNode, EjbTagNames.EJB_RELATIONSHIP_ROLE, descriptor.getSource());
roleNode.writeDescriptor(ejbRelationNode, EjbTagNames.EJB_RELATIONSHIP_ROLE, descriptor.getSink());
return ejbRelationNode;
}
}