di-relational-database/src/main/java/com/softline/database/mysql/DBUtil.java
/**
     * Returns true if the string is null or 0-length.
     *
     * @param str the string to be examined
     * @return true if str is null or zero length
     */
Returns true if the string is null or 0-length.
@param str the string to be examined
@return true if str is null or zero length
Returns true if the string is null or 0 - length . @param str the string to be examined @return true if str is null or zero length
private static boolean isEmpty(CharSequence str) {
        if (str == null || str.length() == 0)
            return true;
        else
            return false;
    }
private static boolean isEmpty ( CharSequence str ) { if ( str == null || str . length ( ) == 0 ) return true ; else return false ; }
Returns true if the string is null or 0-length.
Returns true if the string is null or 0 - length .