@Override
    public byte applyAsByte(ENTITY object) {
        return mapper.applyAsByte(field.get(object));
    }
Default implementation of {@link FieldToByte}.

@author Emil Forslund
@since  3.1.0
runtime-parent/runtime-field/src/main/java/com/speedment/runtime/field/internal/expression/FieldToByteImpl.java