Let's create a one line of code which gets days difference between the first and the last document in a view and the total number of documents in a view, all without any declarations of variables.
The code is written in Java (agent), but the same thing can be done in LotusScript.
System.out.println("Time difference in days: "+String.valueOf(getSession().getAgentContext().getCurrentDatabase().getView("all").getLastDocument().getCreated().timeDifference(getSession().getAgentContext().getCurrentDatabase().getView("all").getFirstDocument().getCreated())/60/60/24)+". Number of documents: "+String.valueOf(getSession().getAgentContext().getCurrentDatabase().getView("all").getAllEntries().getCount()));
Post your own one-line code snippets, maybe we can find a practical use for them :)
6 comments:
Andrei, that is just about the densest piece of Java code that I've come across, and I like it!
One thong that I hate about Java, assuming you follow the recommended code layout guidelines, is the incredible amount of screen real estate that it takes up. Especially wasteful are the blocks with just "{" and "}" curly brackets on their own separate lines. Yeah, yeah, I understand the reasons for the guidelines, but all the same it's especially unproductive on low-resolution screens.
I also tried to assign the objects directly inside the code, but it looks like the declaration must be done on it's own line. For example:
System.out.println((db=getSession().getAgentContext().getCurrentDatabase()).getTitle()+"doc count: "db.getAllDocuments.getCount()+" last modified: "+db.getLastModified())
Assigning an object to db variable at the beginning of the line would eliminate the need to go thru getSession().getAgentContext().getCurrentDatabase() each time you want to access a db object.
This works if you declare Database db=null before the statement, but then it wouldn't be a one-liner :)
For long blocks I usually put the "{" on it's own line to make it easier to find the start and the end of the block. For short blocks (5 lines) I put the { bracket on the same row as the statement.
It also depends on the Java GUI code editor you use. Some editors help you to find the beginning { bracket when you mark the ending } bracket, which makes it easy to find the block start without having to put the bracket on it's own line.
Dim sess As New notessession
With sess.CurrentDatabase.GetView("SMS messages")
Print "Timediff: " + Cstr( .GetNextDocument(.Getfirstdocument).Created - .Getprevdocument(.Getlastdocument).Created ) + " Documents: " + Cstr( .Allentries.Count)
End With
Almost but not quite a one-liner! And the declaration too.....
This one calcs between 2nd document and 2nd last document :-) I think my 2 liner will ocupy less ide space than a java one liner doing the same? (Provided the time diff is ok (looks like it), but implem datetime class (as I normally would) would have mudded the picture in java favor :-)
krgds Jan
And, I forgot to add about my sugestion, quite use less, but thats not the point, eh? :-)
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