Bug 184762 BIRT Model - Enhancments to the level defintion
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/elements/ElementVisitor.java
*/
	public void visitTableGroup( TableGroup obj )
	{
		visitGroup( obj );
	}
	/**
	 * Visits the cell element.
	 * 
	 * @param obj
	 *            the cell to traverse
	 */
	public void visitCell( Cell obj )
	{
	}
	/**
	 * Visits the column element.
	 * 
	 * @param obj
	 *            the column to traverse
	 */
	public void visitColumn( TableColumn obj )
	{
	}
	/**
	 * Visits the row element.
	 * 
	 * @param obj
	 *            the row to traverse
	 */
	public void visitRow( TableRow obj )