Creating a dynamic prepared statement

Question

the problem:
i have a range of paratmeters coming in from a form and need to be able to create a dynamic query string to go into a prepared statement object.
the problem i have is there are 2 fields year range and year.
if year range is none i need to create the query string as such :
where the value of year can be serached on exactly
str.append("VOLUME_YEAR = ? ");the probelm is if the year range is 5 or year range is 10 i dont know how to maipulate the query string to be able to set the string such that i can then place the year value in the place holder in preparedStatement.setInt(1, year)
how can i create the intial query string ie.- what are the possible things that i can do. - i'm thinking of things like putting some type of between or such type query statement - but not at all sure how the syntax would go - ie. how would i use the year value and how would i create this dynamic part of the query string so that the JDBC regonises it?
thanks for any help.
public String setVolumeYearQuerySt(String year, String yearRange, StringBuffer str){
          String volumeYearQueryString = null;
          Sring doAction= null;
          if (yearRange.equals("None")){str.append("VOLUME_YEAR = ? ");}
          else if(yearRange.equals("5 Years")){doAction = "Nothing";}
          else if (yearRange.equals("10 Years")){doAction = "Nothing";}
          return volumeYearQueryString;
          }

Answer 1

Please do not cross-post:
http://forum.java.sun.com/thread.jspa?threadID=686789&tstart=0
- Saish