/*
 * Copyright (c) 2006,2008 Declarative Engineering LLC.
 * All rights reserved.  This program and the accompanying materials
 * are made available under the terms of the Declarative Engineering LLC
 * verson 1 which accompanies this distribution, and is available at
 * http://declarativeengineering.com/legal/DE_Developer_License_v1.txt
 */
package com.foundation.view.definition;

import com.foundation.metadata.Attribute;
import com.foundation.util.IManagedList;
import com.foundation.util.ManagedList;
import com.foundation.util.xml.IElement;

/**
 * Association nodes are used by an association target or link to build an arbitrary tree of listeners to models which will indicate that the target value has been altered.
 */
public class AssociationNodePart extends AbstractPart implements IAssociationNodePart {
	public static final Attribute EVENTS = registerCollection(AssociationNodePart.class, "events", AO_LAZY);
	public static final Attribute ATTRIBUTES = registerCollection(AssociationNodePart.class, "attributes", AO_LAZY);
	public static final Attribute ROW_TYPE_NAME = registerAttribute(AssociationNodePart.class, "rowTypeName");
/**
 * AssociationNodePart constructor.
 * <p><b>Warning: Only public for the purpose of creating reflections.</b></p>
 */
public AssociationNodePart() {
}//AssociationNodePart()//
/**
 * AssociationNodePart constructor.
 * @param parent The target which is defining this node.
 * @param component The component referencing the attribute.
 * @param documentElement The optional element of the document that defines this association.  This is used for debugging.
 */
public AssociationNodePart(IComponentData component, IElement documentElement) {
	super(component);
	setDocumentElement(documentElement);
}//AssociationNodePart()//
/* (non-Javadoc)
 * @see com.foundation.common.Entity#lazyLoadAttribute(com.foundation.metadata.Attribute)
 */
protected Object lazyLoadAttribute(Attribute attribute) {
	Object result = null;

	if(attribute == EVENTS) {
		result = new ManagedList(5, 20);
	}//if//
	else if(attribute == ATTRIBUTES) {
		result = new ManagedList(5, 20);
	}//else if//
	else {
		result = super.lazyLoadAttribute(attribute);
	}//else//
	
	return result;
}//lazyLoadAttribute()//
/**
 * Gets the event names that should be listened to for the leaf node.
 * <p>Warning: This is only valid for leaf nodes.</p>
 * @return The collection of String instances, one for each event listened to on the association's result.
 */
public IManagedList getEvents() {
	return (IManagedList) getAttributeValue(EVENTS);
}//getEvents()//
/**
 * Gets the attributes names that should be listened to for the leaf node.
 * <p>Warning: This is only valid for leaf nodes.</p>
 * @return The collection of String instances, one for each attribute listened to on the association's result.
 */
public IManagedList getAttributes() {
	return (IManagedList) getAttributeValue(ATTRIBUTES);
}//getAttributes()//
/**
 * Gets the qualified class name which defines what values this node applies to.
 * @return The qualified class name of the row type supported by this association node.
 */
public String getRowTypeName() {
	return (String) getAttributeValue(ROW_TYPE_NAME);
}//getRowTypeName()//
/**
 * Sets the qualified class name which defines what values this node applies to.
 * @param rowTypeName The qualified class name of the row type supported by this association node.
 */
public void setRowTypeName(String rowTypeName) {
	setAttributeValue(ROW_TYPE_NAME, rowTypeName);
}//setRowTypeName()//
}//AssociationNodePart//