Using java to add, delete AS400 file members

Question

Caling all Jav/AS400 gurus!! I have developed a J2ee application that goes against the AS400 database. I am able to create and delete physical and logical file members using the following code:
//create new file member
public String addPhysicalMember(
     String fName,
     String member,
     String libName,
     String errMsg,
     String callCommand,
     String vendParm) {
          callCommand = "ORDPMBRJVA";
          fName = "ORDER ";
     CommandCall callComm = new CommandCall();
     AS400 sys = new AS400("AS400", "guest", "guest");
     if (vendParm.equals("9999")) {
          try {
          callComm =
                    new CommandCall(
                         sys,
                         "CALL BIGY/"
                              + callCommand
                              + " PARM('"
                              + fName
                              + "' '"
                              + member
                              + "' '"
                              + libName
                              + "' '"
                              + errMsg
                              + "')");
                                             callComm.run();
               // Show the messages (returned whether or not there was an error)
               AS400Message[] messagelist = callComm.getMessageList();
               for (int i = 0; i < messagelist.length; ++i) {
                    // Show each message
                    System.out.println(messagelist.getText());
          } catch (Exception e) {
               System.out.println("Command " + callComm.getCommand() + " did not run!");
     // done with the system
     sys.disconnectService(AS400.COMMAND);
     return errMsg;
//create new logical member
public String addLogicalMember(
     String fName,
     String member,
     String libName,
     String errMsg,
     String callCommand,
     String vendParm) {
     CommandCall callComm = new CommandCall();
     AS400 sys = new AS400("AS400", "guest", "guest");
     if (vendParm.equals("9999")) {
          try {
               callComm =
                    new CommandCall(
                         sys,
                         "CALL BIGY/"
                              + callCommand
                              + " PARM('"
                              + fName
                              + "' '"
                              + member
                              + "' '"
                              + libName
                              + "' '"
                              + errMsg
                              + "')");
                                             callComm.run();
               // Show the messages (returned whether or not there was an error)
               AS400Message[] messagelist = callComm.getMessageList();
               for (int i = 0; i < messagelist.length; ++i) {
                    // Show each message
                    System.out.println(messagelist[i].getText());
          } catch (Exception e) {
               System.out.println("Command " + callComm.getCommand() + " did not run!");
     // done with the system
     sys.disconnectService(AS400.COMMAND);
     return errMsg;
I delete the file members the same way, basically, I have a similar method that calls a different AS400 command.
I check to AS400 to make sure the members (both physical and logical)have been deleted. The are deleted. However, when I go to use that member name again, my program blows up with the error message "member name already exists." For the user's sake, they need to reuse the member file names over.
When I run the commands on the AS400, they work each time without fail, creating and deleting the same member as often as desired. Is there something missing from my code? Any help you can give me is greatly appreciated.
Thanks, jlav143

Answer 1

I check to AS400 to make sure the members (both physical and logical)have been deleted. The are deleted. However, when I go to use that member name again, my program blows up with the error message "member name already exists." For the user's sake, they need to reuse the member file names over.It looks like your "checking" isn't very accurate, then. But I can't comment on your code for removing members because I can't see the commands you are using -- and it looks sort of like you're calling your own CL program to do that anyway. Why don't you just clear the members instead of deleting them and then adding them back?