Google Gandhi

My Ubuntu Desktop

Development version of Chromium browser in Karmic Alpha 5

Vala

Programming Language
Vala is a new programming language that aims to bring modern programming language features to GNOME developers without imposing any additional runtime requirements and without using a different ABI compared to applications and libraries written in C.
http://live.gnome.org/Vala

Val(a)IDE
Val(a)IDE is an Integrated Development Environment (IDE) for the Vala programming language.
http://www.valaide.org/

Example Code

class Sample : Object 
{
   void run() 
   {
      stdout.printf ("Hello World\n");
   }

   static void main (string[] args) 
   {
      var sample = new Sample();
      sample.run ();
   }
}

Code Compilation Example

valac --pkg gtk+-2.0 main.vala

`C` Code Generation Example

valac --pkg gtk+-2.0 -C main.vala

Generated Source

#include <glib.h>
#include <glib-object.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>


#define TYPE_SAMPLE (sample_get_type ())
#define SAMPLE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), TYPE_SAMPLE, Sample))
#define SAMPLE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), TYPE_SAMPLE, SampleClass))
#define IS_SAMPLE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TYPE_SAMPLE))
#define IS_SAMPLE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), TYPE_SAMPLE))
#define SAMPLE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), TYPE_SAMPLE, SampleClass))

typedef struct _Sample Sample;
typedef struct _SampleClass SampleClass;
typedef struct _SamplePrivate SamplePrivate;

struct _Sample {
 GObject parent_instance;
 SamplePrivate * priv;
};

struct _SampleClass {
 GObjectClass parent_class;
};


static gpointer sample_parent_class = NULL;

GType sample_get_type (void);
enum  {
 SAMPLE_DUMMY_PROPERTY
};
static void sample_run (Sample* self);
Sample* sample_new (void);
Sample* sample_construct (GType object_type);
static void sample_main (char** args, int args_length1);
Sample* sample_new (void);



static void sample_run (Sample* self) {
 g_return_if_fail (self != NULL);
 fprintf (stdout, "Hello World\n");
}


static void sample_main (char** args, int args_length1) {
 Sample* sample;
 sample = sample_new ();
 sample_run (sample);
 (sample == NULL) ? NULL : (sample = (g_object_unref (sample), NULL));
}


int main (int argc, char ** argv) {
 g_type_init ();
 sample_main (argv, argc);
 return 0;
}


Sample* sample_construct (GType object_type) {
 Sample * self;
 self = g_object_newv (object_type, 0, NULL);
 return self;
}


Sample* sample_new (void) {
 return sample_construct (TYPE_SAMPLE);
}


static void sample_class_init (SampleClass * klass) {
 sample_parent_class = g_type_class_peek_parent (klass);
}


static void sample_instance_init (Sample * self) {
}


GType sample_get_type (void) {
 static GType sample_type_id = 0;
 if (sample_type_id == 0) {
  static const GTypeInfo g_define_type_info = { sizeof (SampleClass), (GBaseInitFunc) NULL, (GBaseFinalizeFunc) NULL, (GClassInitFunc) sample_class_init, (GClassFinalizeFunc) NULL, NULL, sizeof (Sample), 0, (GInstanceInitFunc) sample_instance_init, NULL };
  sample_type_id = g_type_register_static (G_TYPE_OBJECT, "Sample", &g_define_type_info, 0);
 }
 return sample_type_id;
}

Ubuntu - Restricted Extras

The following command installs flash, java and codecs for different multimedia formats on Ubuntu.

sudo apt-get install ubuntu-restricted-extras

Details: https://help.ubuntu.com/community/RestrictedFormats

DB2-AS/400 SQL - Selecting Column Details

SELECT COLUMN_NAME, COLUMN_TEXT FROM QSYS2.SYSCOLUMNS WHERE TABLE_SCHEMA = '<LIBRARY>' AND TABLE_NAME = '<TABLE>'

DB2-AS/400 SQL - Restarting Identity Counter

SQL statement for resetting the identity counter, after clearing the table.
Database Server: IBM AS/400 DB2

ALTER TABLE <TABLE NAME> ALTER COLUMN <IDENTITY COLUMN> RESTART WITH 1

Expression Language (EL)

Expression Language

A primary feature of JSP technology version 2.0 is its support for an expression language (EL). An expression language makes it possible to easily access application data stored in JavaBeans components. For example, the JSP expression language allows a page author to access a bean using simple syntax such as ${name} for a simple variable or ${name.foo.bar} for a nested property. Click JSF EL reference to continue reading..