Is it possible to call a sql function through prepared Statement in java?

Question

Java

Through pgAdmin I created a function for my database, can I call this function when creating a request on the server using preparedStatement, that is, pass it the following line as an argument:

private static final String SQL_FUNC_REQUEST = "Select addNode(?, xmlelement(name action, xmlattributes('? as billId, 
? as name), \n" +
            "\t\t\t\t\t\t\t xmlelement(name status, ?)));";

PreparedStatement preparedStatement = connection.prepareStatement(SQL_FUNC_REQUEST)

My function has the following signature:

create or replace function addNode(xmlId integer, newNode xml)
returns void as ...

That is, he will see this function after it has been created, do I understand correctly?