public void visitCMElementDeclaration(CMElementDeclaration ed)
{
if (ed == root && !isRootVisited)
{
isRootVisited = true;
CMContent content = ed.getContent();
if (content != null)
{
if (content.getNodeType() != CMNode.GROUP)
{
sb.append("("); //$NON-NLS-1$
visitCMNode(content);
sb.append(")"); //$NON-NLS-1$
}