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Monthly Archives: July 2015
CompletableFuture in I/O-bound applications
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 async, completablefuture, nio, performance
Impressions from JavaForum Stuttgart 2015
Some impressions from my talk at JavaForum Stuttgart 2015 “JAX-RS 2.1 New Features”.
My first contribution to a W3C standard: The default-language() XPath / XQuery function
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 default-language(), XPath, XQuery
JVM Callbacks for hardware state events
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 jvm, openjdk
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
Fluent APIs are 1% faster
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 fluent, performance
