Metacat

/**

 *        Name: DBElement.java

 *     Purpose: A Class that represents an XML element and can

 *		write its contents to a database connection

 * Institution: National Center for Ecological Analysis and Synthesis

 *   Copyright: 1998

 *     Authors: Matt Jones

 *

 *     Version: '$Id: DBElement.java 6 1999-09-13 00:18:59Z jones $'

 */

//package project;

import com.sun.xml.tree.ElementNode;

import org.w3c.dom.DOMException;

import org.w3c.dom.Element;

import org.w3c.dom.Node;

import org.w3c.dom.ProcessingInstruction;

import org.w3c.dom.Text;

public class DBElement extends ElementNode

{

    public DBElement () {

      super();

    };

    public String getJunk() {

	return "This is " + getTagName() + " junk!";

    }

    // used by JTree to display this node

    public String toString ()

    {

	StringBuffer	value = new StringBuffer ();

	value.append ('<');

	value.append (getTagName ());

	value.append (getAttributes ().toString ());

	value.append ('>');

	return value.toString ();

    }

    // TreeNode method implementations

/*

    public TreeNode getChildAt (int n) {

    	//System.out.println ("DBElement.getChildAt()");

	Node		node = item (n);

	if (node instanceof TreeNode)

            return (TreeNode) node;

        // Text, ProcessingInstruction ...

        return new MaskedNode (node);

    }

*/

    //

    // In this case we really _do_ want to show all the internal

    // nodes, so we really ought to use custom TreeNode and

    // ProcessingInstruction classes as we build.

    //

/*

    static class MaskedNode implements TreeNode {

    	private Node	real;

    	MaskedNode (Node e) { real = e; }

    	public int getChildCount () { return 0; }

    	public TreeNode getChildAt (int n) { return null; }

    	public TreeNode getParent ()

    		{ return (TreeNode) real.getParentNode (); }

    	public int getIndex (TreeNode node) { return -1; }

    	public boolean getAllowsChildren () { return false; }

    	public boolean isLeaf () { return true; }

    	public Enumeration children () { return null; }

    	public String toString () {

    	    if (real instanceof Text)

    	       return real.toString ();		// XXX constructor

    	    if (real instanceof ProcessingInstruction)

    	       return real.toString ();		// XXX unreasonable result

    	    return "... ? ...";

    	}

    }

 */   	

   /* 

    public int getChildCount () {

    	return getLength ();

    }

    public TreeNode getParent () {

        return (TreeNode) getParentNode ();

    }

    public int getIndex (TreeNode node) {

        return -1;                  // XXX implement

    }

    public boolean getAllowsChildren () {

        return true;

    }

    public boolean isLeaf () {

        return !hasChildNodes ();

    }

    public Enumeration children () {

    	//System.out.println ("DBElement.children()");

	throw new RuntimeException ("NYI");

    }

   */ 

}