ConnectorSession for Custom Scaler UDF

[blaztoff]

Updating my UDFs from 0.238 to 0.261.

I have a simple UDF.

/**
     * Returns the identity. Mostly for testing.
     *
     * @param session
     *            Connector session, populated by the Presto runtime
     * @return identity, as a string
     */
    @ScalarFunction("print_identity")
    @SqlType(StandardTypes.VARCHAR)
    @Description("Returns the identity represented as a string")
    public static Slice printIdentity(ConnectorSession session) {
        return Slices.utf8Slice(session.getIdentity().toString());
    }

Pre 0.245 the Session would get populated automatically. Most of my UDF's use Session as the first Argument. Now it is forcing me to use a Scaler for All Arguments. And it looks like ConnectorSession is not getting auto populated anymore. What changed here? How do I get the Session information now? Trying to look for the documentation on the changes.

Thanks in Advance