UDF to compare the dates with the input date

Question

Hi,
Help me in writing an UDF to compare the input date with start date and end date.
I had written following UDF, but it is not working. we are on XI 3.0
try {
            SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
            Date sd = df.parse(StartDate);
            Date id = df.parse(InputDate);
            Date ed = df.parse(EndDate);
            if ((sd.before(id) || (sd.equals(id))) && (ed.after(id)) || (ed.equals(id))) {
          return true;               
else{
                return false;
        }     catch (Exception e){
       e.printStackTrace();
Thanks
Srinivas

Answer 1

Hello Srinivas,
did you import this two classes in your UDF ?  java.text.* and java.util.*
In case you did but the program is still not working I just wrote a code without imports. See if this might help. I have tested this with all type of data please test again from your end. I have assumed that if three dates are equal the function return true. I am not sure whether you wanted to exclude the boundary dates. In case you want to exclude those dates just replace '<=' with '<' symbol. The code could have been smarter but in short time I thought this might help.
public class DateRange {
  static boolean compareDate(String startDate,String inputDate,String endDate)
          int j,k,l;
          String s[],i[],e[];          
          s=startDate.split("-", 3);
          i=inputDate.split("-", 3);
          e=endDate.split("-", 3);
          j=s[0].compareTo(i[0]);
          k=i[0].compareTo(e[0]);
          l=s[0].compareTo(e[0]);
          if(l>0|| j>0 || k>0)
               return false;
          if(j<=0 && k<0)
               return true;
          j=s[1].compareTo(i[1]);
          k=i[1].compareTo(e[1]);
          l=s[1].compareTo(e[1]);
          if(l>0|| j>0 || k>0)
               return false;
          if(j<=0 && k<0)
               return true;
          j=s[2].compareTo(i[2]);
          k=i[2].compareTo(e[2]);
          l=s[2].compareTo(e[2]);
          if(l>0|| j>0 || k>0)
               return false;
          if(j<=0 && k<=0) 
               return true;
            return false;
     public static void main(String[] args) {
          String startDate="1992-04-03";
          String inputDate="1992-02-03";
          String endDate="1992-02-03";
          System.out.println(compareDate(startDate,inputDate,endDate));
Plese let me know if this works.
regards
Anupam