dateBI(int dateType) 
{
            this.dateType = dateType;
}

 TemplateModel _getAsTemplateModel(Environment env) throws TemplateException 
{
            TemplateModel model = target.getAsTemplateModel(env);
            if (model instanceof TemplateDateModel) {
                TemplateDateModel dmodel = (TemplateDateModel)model;
                int dtype = dmodel.getDateType();
                // Any date model can be coerced into its own type
                if(dateType == dtype) {
                    return model;
                }
                // unknown and datetime can be coerced into any date type
                if(dtype == TemplateDateModel.UNKNOWN || dtype == TemplateDateModel.DATETIME) {
                    return new SimpleDate(dmodel.getAsDate(), dateType);
                }
                throw new TemplateException(
                    "Cannot convert " + TemplateDateModel.TYPE_NAMES.get(dtype)
                    + " into " + TemplateDateModel.TYPE_NAMES.get(dateType), env);
            }
            // Otherwise, interpret as a string and attempt 
            // to parse it into a date.
            String s = target.getStringValue(env);
            return new DateParser(s, env);
}