Archive for category Java
Bertrand’s right: web writers are wrong.
Posted by dreamreal in Programming, Web on 15 June, 2010
In “Can I haz web?,” Bertrand Delacrétaz wrote: How many people today still think information is only valid or “serious” when represented on an A4 piece of paper? Well, except it’s letter, not A4… but the point is dead on. People aren’t thinking of the web very well. I’d echo Bertrand’s point, and amplify. Here’s [...]
New Article: “Considering Datastores.”
Posted by dreamreal in GigaSpaces, Java, general on 19 April, 2010
I just published “Considering Datastores” in the “articles” section of my blog, a piece discussing various data storage mechanisms and their strengths and weaknesses compared to each other.
GigaSpaces XAP 7.1 being released Wednesday!
Posted by dreamreal in GigaSpaces, Java, general on 13 April, 2010
This Wednesday, GigaSpaces is releasing XAP 7.1 GA. XAP stands for “eXtreme Application Platform,” and we included a lot of functionality based around earning that kind of name. Well, more than we already did – we’ve always been leaders in scalability. Probably the most visible aspects of the new release are the technology previews, around [...]
Java Surgery: how to swap(int, int) and have it work… sort of
Posted by dreamreal in Java, Rocket Surgery on 9 April, 2010
So it’s a known fact that Java passes references by value. That means that if I pass an Object of some kind into a method, I can change the values in the object, but not the object reference itself. Likewise, if I pass an int into a method, I can change the value of that [...]
Tools should just go ahead and move to OpenJDK7.
This isn’t particularly thought-through or anything, but … I caught myself thinking this morning that communities like Scala, Groovy, Jython, JRuby, maybe even Maven should go ahead and migrate to OpenJDK7 just to push the JDK7 people along. It’d create momentum around features that people used, and force the development team to trim out the [...]
Java Surgery: Timing Method Calls
Posted by dreamreal in Java, Rocket Surgery on 8 April, 2010
My data stores benchmark gives out timings in terms of nanoseconds, by making a list of response times and then applying statistical methods to get data out of the list. However, one part of that comes up every now and then: how do you measure the time it takes to issue a call? After all, [...]
Java Surgery: Spring Injection of Other Beans’ Properties
Posted by dreamreal in Java, Rocket Surgery on 7 April, 2010
Today, someone wanted to inject not a bean, but a bean’s referenced property into another bean. Put more succintly: He had a bean A, with a property B, and didn’t want to inject A into bean C, but wanted to inject the result of A.getB(). Easy.
Java Surgery: Initializing arrays of arrays
Posted by dreamreal in Java, Rocket Surgery on 5 April, 2010
From IRC, from whence many “interesting” questions come: “If I have a 4 dimensional integer array in Java, is there a way to initialise every element in it to a particular value?” Well. First off, you don’t have a four-dimensional array. You have a one-dimensional array of one dimensional arrays of one dimensional arrays of [...]
LeafChat 2: excellent IRC client, but it’s still only a start
I tried out LeafChat 2 this morning. It’s an IRC client that happens to be written in Java. It’s actually very well done, although command shortcuts are missing; you can write some of them yourself, but the scripting API is still slightly too limited to make this worthwhile. It has a number of customizations; thank [...]
ID Generator Bean for GigaSpaces XAP
Posted by dreamreal in GigaSpaces, Java, general on 5 April, 2010
Shay Hasidim just published Global ID Generator, a global ID generator bean (surprise!) for GigaSpaces XAP, on the GigaSpaces Wiki. Good stuff. I prefer String ids, mind – and GigaSpaces can assign such itself, although there are good reasons to generate it pre-write.