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Latest 7 Posts
Confusing the not very intelligent Expression Language Processor
Fri, Nov 7th 2014 168
A very brief introduction to Expression Language
Thu, Nov 6th 2014 194
MWLUG 2014 Call for Abstracts EXTENDED
Wed, May 21st 2014 77
MWLUG 2014 Call for Abstracts Now Open
Wed, Apr 16th 2014 71
Restoring Way Cool Search to DDE
Tue, Dec 17th 2013 62
Thanks Bruce!
Wed, Oct 2nd 2013 60
It’s getting better all the time
Wed, Sep 25th 2013 66
Top 10
A very brief introduction to Expression Language
Thu, Nov 6th 2014 194
Confusing the not very intelligent Expression Language Processor
Fri, Nov 7th 2014 168
Error 500 -HTTP Web Server: Command Not Handled Exception; or how to choke a server JVM with a single line of code
Wed, Oct 10th 2012 126
MWLUG 2014 Call for Abstracts EXTENDED
Wed, May 21st 2014 77
MWLUG 2014 Call for Abstracts Now Open
Wed, Apr 16th 2014 71
TreeSet.add() fails to add custom objects
Wed, Jul 3rd 2013 67
It’s getting better all the time
Wed, Sep 25th 2013 66
Nate and Tim’s Excellent Recycle
Tue, Aug 27th 2013 63
Restoring Way Cool Search to DDE
Tue, Dec 17th 2013 62
Thanks Bruce!
Wed, Oct 2nd 2013 60


Learning XPages
 
Blog Title Learning XPages
Blog Description A Legacy Notes Developer’s journey into madness.
Blog URL http://www.learningxpages.com
RSS Feed http://www.learningxpages.com/blog.nsf/feed.rss
PlanetLotus Feed http://planetlotus.org/profiles/rss/learning-xpages
Validate Feed feedvalidator.org or validator.w3.org
Feed Last Checked Dec 04, 2014 1:12:38 PM EST. Realtime Update:
Landed Here Aug 22, 2012
Location Cascade Township, Michigan, USA
Posts: # / 1st / Latest - -
Total Hits 1,433. myPL RSS Selections: 5


Recent Blog Posts
168


Confusing the not very intelligent Expression Language Processor
Fri, Nov 7th 2014 9:12a   Devin Olson
If you write a lot of Java (and I do), you will likely find yourself making use of Method Overloading on a regular basis. But beware, for with great power comes great responsibility, and part of that ... [read] Keywords: xpages java
194


A very brief introduction to Expression Language
Thu, Nov 6th 2014 5:09p   Devin Olson
It has been a while since my last post, and I thought i would break the silence with a fun little excursion into the Expression Language Processor. I will follow this up with a subsequent post whi ... [read] Keywords: xpages
77


MWLUG 2014 Call for Abstracts EXTENDED
Wed, May 21st 2014 9:10a   Devin Olson
It is that time of year again, MidWest Lotus User Group conference is just around the corner, and the call for abstracts has gone out. In light of recent events, we have extended the deadline to Frid ... [read] Keywords: lotus
71


MWLUG 2014 Call for Abstracts Now Open
Wed, Apr 16th 2014 11:09a   Devin Olson
MWLUG 2014 will be held at the historic Amway Grand Plaza on August 27-29, 2014. The Amway Grand Plaza was built in 1913 and in 1925 was rated as "One of the Ten Finest Hotels in America". http://mwl ... [read] Keywords:
62


Restoring Way Cool Search to DDE
Tue, Dec 17th 2013 8:10a   Devin Olson
Searching for Search Lately I've been doing a bunch of IDE switching between DDE and eclipse, which has caused me to become aware of some performance differences between the two environments. So ... [read] Keywords: eclipse
60


Thanks Bruce!
Wed, Oct 2nd 2013 6:12a   Devin Olson
http://bruceelgort.com" title="Bruce Elgort"Bruce Elgort has stepped down as chairman of http://www.openntf.org" title="OpenNTF"OpenNTF I have known Bruce for many years. I could go on about ho ... [read] Keywords: openntf




66


It’s getting better all the time
Wed, Sep 25th 2013 9:10a   Devin Olson
Wherein I babble about XML Namespaces even though they are not the point of this post So I was working this morning on a custom control, and I wanted to create a NEW custom control using content fro ... [read] Keywords: xml
63


Nate and Tim’s Excellent Recycle
Tue, Aug 27th 2013 8:13a   Devin Olson
During the "Build A Bean Workshop" that Mike McGarel and I presented at MWLUG 2013, I mentioned a wonderful utility method I received from Tim Tripcony, who in turn based it on some original code ( ... [read] Keywords: java
67


TreeSet.add() fails to add custom objects
Wed, Jul 3rd 2013 4:16p   Devin Olson
Here is a quick tip. In Java, when you construct your own objects which implement Comparable, and use a TreeSet to contain them, you need to watch out for .equals() vs. .compareTo(). Here is a ... [read] Keywords: java
45


Getting a handle on Scope using Java
Tue, Jun 4th 2013 6:16a   Devin Olson
XPages gives us some wonderfully cool pre-built containers into which we can throw various variables, and retrieve them later at our convenience. The containers to which I'm referring are the SCOPE ... [read] Keywords: xpages java
38


(Crosspost from Spanky’s Place) Installing and Configuring IBM Domino 9 Social Edition on CentOS 6 Enterprise Linux
Tue, Apr 30th 2013 7:23a   Devin Olson
This is is a copy of my blogpost Since the official release of IBM Notes and Domino 9.0 Social Edition a few weeks ago, I have been "chomping at the bit" wanting to release a set of instructions / vi ... [read] Keywords: domino ibm notes centos enterprise linux
42


Dell Service Tag via WMIC Command
Fri, Apr 26th 2013 7:24a   Devin Olson
Let me say up front that this post has NOTHING to do with Lotus, XPages, or software development in any way. But it is too good a tip to not post about. I recently needed to get the service tag f ... [read] Keywords: lotus xpages development
49


Bug in DD-WRT on a Netgear WNDR3700 Router
Tue, Apr 23rd 2013 7:17a   Devin Olson
Yesterday I tried to install dd-wrt (v24 SP1) on my Netgear WNDR3700 v2 router. The installation was a breeze. Then I tried to configure it. That is when the trouble began There is a bug in th ... [read] Keywords: bug
30


Regex Reminder: Match the End of a String
Tue, Apr 9th 2013 1:13p   Devin Olson
I am posting this here because I'm tired of having to think this through every time I need it. Perhaps it will be of some use to somebody else. ^.*substring$ When searching any string using a Re ... [read] Keywords: java
19


eclipse Frustrations (why do I suddenly have 18K+ errors?)
Thu, Mar 14th 2013 9:08a   Devin Olson
Yesterday I had the incredibly frustrating experience of having eclipse break -and I had no idea why. I spent several hours trying to figure it out before giving up and walking away. I had prev ... [read] Keywords: eclipse
23


Domino 8.5.3: Problem and solution to ’formId’ is null or not an object or TypeError: ’undefined’ is not an object
Sat, Jan 19th 2013 9:12a   Devin Olson
I've been working on a new project for a little while now. It was working perfectly my development environment (Domino 9 Beta server), and the time had come to put a limited access version into produ ... [read] Keywords: domino ajax development server
27


Stupid equality test -my most common Java bug.
Mon, Dec 10th 2012 3:17p   Devin Olson
I was first introduced to Java (as a Programming Language) around 1997 or 1998, and I've been working with it on a semi-regular basis since around 2001. Since July of this year I have been working ... [read] Keywords: bug java
30


How to Crash an XPages server with 1 line of code
Thu, Nov 29th 2012 10:10a   Devin Olson
Yesterday I was doing some testing and I crashed my server. So I restarted the server, checked the logs, checked my code, made some adjustments to try and identify the cause of the crash, and resu ... [read] Keywords: xpages server
29


"You don’t need to know Java to write XPages" and other fables
Thu, Oct 11th 2012 9:11a   Devin Olson
Since the advent of XPages several years ago, I've heard the following mantra more times than I care to remember: "You don't need to know Java to write XPages" To which I say HORSE SHIT!! While yo ... [read] Keywords: xpages java
126


Error 500 -HTTP Web Server: Command Not Handled Exception; or how to choke a server JVM with a single line of code
Wed, Oct 10th 2012 3:11p   Devin Olson
When creating your own Java objects to feed repeat controls, it is useful to implement the Java Collection Interface with a values() method. HOWEVER - you should be very careful when doing this that ... [read] Keywords: xpages interface java server
30


Invalid Validation Frustration Situation
Fri, Oct 5th 2012 6:09a   Devin Olson
Last night just as I was shutting down my boss pointed out a problem in an application I'm working on. It seems validation was failing on a certain field. I did a quick test and was able to reprodu ... [read] Keywords: xpages application
19


How not to find things
Thu, Aug 23rd 2012 2:08p   Devin Olson
Yesterday my buddy Tim Tripcony suggested I check out watrCoolr on OpenNTF.Org. I was interested in real time data serialization and MIME entity conversion, and Tim's application does exactly that. ... [read] Keywords: xpages application openntf
17


Extending Tommy Valand’s clearMap() function
Tue, Aug 14th 2012 5:46a   Devin Olson
Tommy Valand posted a wonderfully simple function for clearing scoped variables a couple of years ago. I had a need to conditionally clear certain elements from my applicationScope. In my case, ... [read] Keywords: xpages
23


XPages SSJS Function: @IsBlank
Mon, Aug 13th 2012 5:17p   Devin Olson
Testing for blank strings can be kind of a PIA, and there are myriad examples all over the web on how to accomplish this. Here is my version for XPages SSJS. Enjoy: function @IsBlank(source:String) ... [read] Keywords: xpages
16


A little bit of scope will never. Never, ever, ever erase.
Fri, Aug 10th 2012 11:54a   Devin Olson
Last week I ran into this little nugget of fun: Unexpected runtime error The runtime has encountered an unexpected error. Error source Page Name:/request.xsp Exception java.io.NotSerializabl ... [read] Keywords: xpages java
26


Concatenation Baby!
Fri, Aug 10th 2012 6:00a   Devin Olson
I spent quite a bit of time today trying to figure out why my SSJS wasn't working the way I intended. I created a function that was supposed to return the UniversalID of a document that had a part ... [read] Keywords:
16


Episode IV - A New Hope
Thu, Aug 9th 2012 2:01p   Devin Olson
I am finally getting to work with XPages. Yes, I know XPage technology has been gold for several years now, but I've been a bit busy making a living, so cut me a little slack, OK? I suppose a litt ... [read] Keywords: xpages




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