public static boolean isEmptyMethodString(final String str) {
		if (str == null) {
			return false;
		}
		return str.startsWith(TieConstants.METHOD_PREFIX);
	}
public static boolean isEmptyMethodString(final String str) {
		if (str == null) {
			return false;
		}
		return str.startsWith(TieConstants.METHOD_PREFIX);
	}
public static boolean isEmptyMethodString ( final String str ) { if ( str == null ) { return false ; } return str . startsWith ( TieConstants . METHOD_PREFIX ) ; }
empty method string is start as $ follow with { and }. i.e.
${department.name}

@param str
the str
@return true, if is empty method string
empty method string is start as $ follow with { and } . i . e . $ { department . name }