@Override
    public void render(Context context, JobType value, SafeHtmlBuilder sb) {
        if (value != null) {
            if (JobType.CRON.equals(value) || JobType.FREQUENCY.equals(value)) {
                sb.appendHtmlConstant(button);
            }
        }
    }
Construct a new {@link SelectionCell} with the specified options.
stroom-core-client/src/main/java/stroom/job/client/JobTypeCell.java