Monthly Archives: July 2015

CompletableFuture in I/O-bound applications

Posted on 20. July 2015 by

Hardware access needs long time Applying reactive programming to improve performance by utilizing all CPU cores became rather easy with Java 8 thanks to CompletableFuture. This is nice when an application is mostly CPU-bound, i. e. when it performs in-memory operations. But … Continue reading →

Posted in Allgemein, Java, Programming | Tagged , , ,

Impressions from JavaForum Stuttgart 2015

Posted on 18. July 2015 by

Some impressions from my talk at JavaForum Stuttgart 2015 “JAX-RS 2.1 New Features”.

Image | Posted on 18. July 2015 by | Tagged , ,

My first contribution to a W3C standard: The default-language() XPath / XQuery function

Posted on 18. July 2015 by

I felt honoured and happy when I was informed this week by XQuery co-inventor Jonathan ROBIE that my proposal https://www.w3.org/Bugs/Public/show_bug.cgi?id=28850 this week was accepted by the Xpath/Xquery working group at the W3C! While XSLT spec lead Michael KAY pointed out, it … Continue reading →

Posted in Open Source, Programming, Standards | Tagged , ,

JVM Callbacks for hardware state events

Posted on 12. July 2015 by

Strange but true, a Java program cannot detect the situation where it is still running but the laptop is going to sleep because the user closed the lid. Neither can a full-blown Java application server like GlassFish detect a power loss … Continue reading →

Posted in Java, Open Source, Programming, Standards | Tagged ,

#jsf2015 slides online “JAX-RS 2.1 New Features”

You can find the slides of my “JAX-RS 2.1 New Features” presentation at JavaForum Stuttgart 2015 at Speaker Deck.

Aside | Posted on 9. July 2015 by | Tagged , ,

Contributed Binary Transmission for setObject(int, Object, int, int)

Cool, my latest contribution to PGJDBC on GitHub was accepted today, so next release will provide better performance for setObject(int, Object, int) and setObject(int, Object, int, int) methods, as the values are now transferred as binary values, and not as String literals … Continue reading →

Aside | Posted on 9. July 2015 by | Tagged ,

Fluent APIs are 1% faster

Posted on 5. July 2015 by

Using fluent APIs without a guilty conscience Fluent APIs are pretty common these days and make our lifes so much easier and the code far better to read. Even the JDK came up with some first fluent APIs many years ago, … Continue reading →

Posted in Java, Programming | Tagged ,