java

?FileSystem is faster than RAM [under your Operating System]

I am studying Apache Kafka (a “distributed streaming platform”) and I stubled upon this conclusion: the “disk read fear” a lot of projects have in the past, is a fake. A lot of distributed database started tutorial with the statement “disk read are slow, write are fast” which is true to some extent, and accounted …

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Vjdbc

Vjdbc is a remote access for JDBC-Datasources developed more then ten years ago (last news are from 2007, with last comit from 2013. The project was migrated to Maven 3, but the code base is very old. I decided to give it a try, spin a github repository and started working on it, because you …

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Kotlin

Language based on JVM are the new trend in Java World. It seems everyone dislike Oracle on these days. Kotlin score some point on these days because it will be supported officially on Android (Mid-May announce): Starting now, Android Studio 3.0 ships with Kotlin out of the box, meaning Android developers no longer need to install …

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I am smarter syndrome

Sometimes in University I found bold young guy saying something like: I will reimplement this in machine language because is faster I will reimplement this xyz C function by my own My program crash, I think there is a bug in HP UNIX socket implementation I will ge rid of this Java Garbage Collector because …

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Il saggio progetto svedese, rinato: Elixir e Phoenix

Negli ultimi 20 anni sono successe tante cose imprevedibili. Nel 1995 nasce Java. Nello stesso periodo nasce Erlang. Java inizialmente segue la strada culturale tracciata da Sun, e si configura come un linguaggio estremamente verboso, con API specifiche per la gestione della concorrenza (es keyword synchronized per gestire nativamente le zone critiche che necessitano di …

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Axis2 Debugging options

Web service interoperability is a nightmare. But it is easy to understand what is going on: just enable debugging! On Axis2, you can do it with the folowing java options… [bash] -Dorg.apache.commons.logging.Log=org.apache.commons.logging.impl.SimpleLog -Dorg.apache.commons.logging.simplelog.showdatetime=true -Dorg.apache.commons.logging.simplelog.log.httpclient.wire=debug -Dorg.apache.commons.logging.simplelog.log.org.apache.commons.httpclient=debug [/bash]

Tool Command Language: il papa’ di Java

E’ notizia fresca di stampa il rilascio di Tcl 8.6, che introduce parecchie novità a dispetto del fatto che sia una “minor” release.   In particolatre Tcl 8.6 introduce un motore “stackless”, integra nel linguaggio le estensioni OOP, ed aggiunge le coroutine. Parliamo quindi diffusamente di Tcl, un linuaggio che ho sempre trascurato perché mi sembrava …

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