Solved

Getting the first new Email out of a folder....

Posted on 2004-04-26
14
337 Views
Last Modified: 2013-11-24
Hi all,
I want to search for the first new (UNSEEN) email in a folder through JavaMail. Am i correct in saying that there is no such method in the API, which is unusual?

So if there's not, whats the best way of getting it? Is it something like this?

Message m = null;
Flags flag[];
int nextNewMessage;

Message[] msgs = folder.getMessages();

for (int i = msgs.length; i == 0; i--) {
   flag[i] = msgs[i].getFlags();
   if (flag[i] == "SEEN") {              << I know its wrong, any help?!
           nextNewMessage = i;
   } // end if  
           
}


Also, i can do this to CREATE a new folder, right?
   folder.getFolder("Trash Can");
   folder.create(Folder.HOLDS_MESSAGES);


Thanks in Advance
0
Comment
Question by:BaconAndCabbage
  • 5
  • 4
  • 3
  • +1
14 Comments
 
LVL 86

Expert Comment

by:CEHJ
ID: 10919154
>>Am i correct in saying that there is no such method in the API, which is unusual?

Yes, if you're using POP (normal). There is no concept of seen/unseen in the protocol. The messages are either on the server or they've been deleted from it
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 10919165
...so if you want to only look at new ones, you have to ensure you delete the messages from the server after getting them.
0
 

Author Comment

by:BaconAndCabbage
ID: 10919190
No, i'm actually using IMAP
0
How our DevOps Teams Maximize Uptime

Our Dev teams are like yours. They’re continually cranking out code for new features/bugs fixes, testing, deploying, responding to production monitoring events and more. It’s complex. So, we thought you’d like to see what’s working for us. Read the use case whitepaper.

 
LVL 7

Expert Comment

by:maheshexp
ID: 10919319
one such answer is posted in this forum...

http://www.jguru.com/faq/view.jsp?EID=26898
0
 
LVL 7

Expert Comment

by:maheshexp
ID: 10919338
UNSEEN, u mean a new Message....if iam correct,  need the new message, then sort all the messages by date and time, and pick out the recent one....
0
 
LVL 7

Expert Comment

by:maheshexp
ID: 10919343
0
 
LVL 7

Expert Comment

by:maheshexp
ID: 10919371
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 10919375
I'm not familiar with IMAP, but i don't think even that has a concept of 'read/unread'. You could probably treat is as above, or move it into a different folder
0
 

Author Comment

by:BaconAndCabbage
ID: 10919514
Thanks for the replies, but i don't think the links help.
          "then sort all the messages by date and time, and pick out the recent one"
That won't work because an unread email need not neccessarily be the most recent one, ie a unread email may be days old.

Ya see, i can check the NUMBER of new Messages in a folder, thats not a problem - what i want to get is the position (ie, msgCount) of any new emails!

Thanks again, any solution would be greatly appreciated
0
 
LVL 14

Accepted Solution

by:
Tommy Braas earned 50 total points
ID: 10919550
The IMAP protocol is defined in http://www.faqs.org/rfcs/rfc3501.html

Change your code to read:
for (int j=0; j<flag[i].length; j++ ) {
   flags = msgs[i].getFlags();
   if ("\\Seen".equals(flag[j])) {
           nextNewMessage = i;
   } // end if  


More to the point is the fact that you can specify that you only want to receive unseen emails etc. Read the above document for more information.
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 10919556
The thing to do, if no changes are being done on the server, is to save the ids of the messages you HAVE read, and do a set intersection using those, leaving you with unread ones
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 10919672
Interesting - so you can flag the message as \Seen. I'm always trying to find an elusive site where they've formatted these rfcs as html, but failing ;-)
0
 
LVL 14

Expert Comment

by:Tommy Braas
ID: 10919781
>>  I'm always trying to find an elusive site where they've formatted these rfcs as html, but failing ;-)
Yes, I haven't found one either...
0
 

Author Comment

by:BaconAndCabbage
ID: 10921006
As always lads, thanks a lot
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

For beginner Java programmers or at least those new to the Eclipse IDE, the following tutorial will show some (four) ways in which you can import your Java projects to your Eclipse workbench. Introduction While learning Java can be done with…
Introduction Java can be integrated with native programs using an interface called JNI(Java Native Interface). Native programs are programs which can directly run on the processor. JNI is simply a naming and calling convention so that the JVM (Java…
Viewers learn about the “while” loop and how to utilize it correctly in Java. Additionally, viewers begin exploring how to include conditional statements within a while loop and avoid an endless loop. Define While Loop: Basic Example: Explanatio…
Viewers will learn how to properly install Eclipse with the necessary JDK, and will take a look at an introductory Java program. Download Eclipse installation zip file: Extract files from zip file: Download and install JDK 8: Open Eclipse and …

809 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question