DefinitionItem definition = new DefinitionItem(comp);
m_group = definition;
m_global = (GlobalExtension)comp.getExtension();
m_global.setDefinition(definition);
TreeWalker wlkr = new TreeWalker(null, new SchemaContextTracker());
wlkr.walkElement(comp, this);
if (s_logger.isDebugEnabled()) {
m_nestingDepth--;
s_logger.debug(SchemaUtils.getIndentation(m_nestingDepth) + "Completed structure for global definition " +
SchemaUtils.describeComponent(comp) + " with " + m_group.getChildCount() + " child items");
}