code: public ItemImpl getItem(NodeData parent, QPathEntry name, boolean pool, ItemType itemType)
        throws RepositoryException
     {
        return getItem(parent, name, pool, itemType, true);
     }
docs: Return Item by parent NodeDada and the name of searched item.
  
  @param parent
  - parent of the searched item
  @param name
  - item name
  @param itemType
  - item type
  @param pool
  - indicates does the item fall in pool
  @return existed item or null if not found
  @throws RepositoryException