Bug 184762 BIRT Model - Enhancments to the level defintion
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ElementFactory.java
* 
	 * @param name
	 *            hierarchy name
	 * @return a handle to the hierarchy element
	 */
	public TabularHierarchyHandle newTabularHierarchy( String name )
	{
		TabularHierarchy element = new TabularHierarchy( name );
		module.makeUniqueName( element );
		return element.handle( module );
	}
	/**
	 * Creates a new level element. The name is required. If the
	 * <code>name</code> is null, we will make a unique name for it.
	 * 
	 * @param name
	 *            the level name
	 * @return a handle to the level element
	 * @deprecated replaced by
	 *             {@link #newTabularLevel(org.eclipse.birt.report.model.api.olap.DimensionHandle, String)}
	 */
	public TabularLevelHandle newTabularLevel( String name )
	{
		TabularLevel element = new TabularLevel( name );
		module.makeUniqueName( element );
		return element.handle( module );
	}
	/**
	 * Creates a new level element within the given dimension handle. The name
	 * is required. If the <code>name</code> is null, we will make a unique