Writing to a physical file without conversion

Hi everyone,

I have a physical file that has a variety of fields defined - packed 
numeric data, character data, dates, and so on. I'm using JTOpen to write 
data to the file from a Java program. Most of the time, the conversion 
between Java and the physical file data types is very useful. However, I 
have a situation where I'd like to write some character data to one of the 
fields in the file without any conversion taking place (it's a long story 
why). Something along the lines of:

// format is the format retrieved from the file description
Record record = new Record(format);
// corresponds to a field declared as 15P 2; want conversion to happen
record.setField(1, new BigDecimal("5236.66"));
// corresponds to a field declared as 50A; don't want conversion to happen
record.setField(2, AByteArrayThatShouldn'tBeConverted);
...
file.write(record);

I've been trying to find a way to do this with the record-level access 
classes to do this, but haven't had any luck. Can anyone shed some light?

Thank you,

andrew.