Ivan Najman

Eclipse, IntelliJ – color schemes

inajman — Mon, 02 Apr 2012 17:40:16 +0000

Color schemes I’m currently using (Eclipse and IntelliJ)

Forcing lazy loading on JPA entity

inajman — Thu, 01 Dec 2011 21:21:11 +0000

The entity returned from a lazy-loading relationship can actually be a proxy that waits until
a method is invoked on the proxy before the entity is faulted in. We have to invoke a method on the
entity to guarantee that it is actually retrieved from the database. If this were a collection-valued
relationship, the size() method of the Collection would be commonly used to force eager loading.


public class BaseUser
{
...

@OneToMany(mappedBy="user",cascade=CascadeType.ALL, orphanRemoval=true)
public Collection authorities;
...
}

//Some point in code under transcational

Query q = em.createQuery("SELECT v FROM User v WHERE v.username = '" + username + "'");

if (users.size() != 0)
{
User user = (User) q.getResultList().get(0);

//this will trigger lazy loading
user.getAuthoritys().size();
}

...

The Formula

inajman — Wed, 21 Sep 2011 17:31:16 +0000

Hiding ActionBar from ViewNavigator

inajman — Mon, 12 Sep 2011 20:53:05 +0000

In order to hide action bar from the ViewNavigator all you have to do is create custom ViewNavigatorSkin and override its createChildren method.There you have several options, set includeInLayout to false or just don’t add actionbar as a child at all.Simple as that.

  override protected function createChildren():void
    {
        contentGroup = new Group();
        contentGroup.id = "contentGroup";

        actionBar = new ActionBar();
        actionBar.id = "actionBar";

        addChild(contentGroup);

        //either you can comment this line out
        //addChild(actionBar);

        //or you can simply do this
        actionBar.visible = actionBar.includeInLayout = false;
        addChild(actionBar);
    }

Sitting is killing you

inajman — Sat, 03 Sep 2011 23:36:56 +0000

Via: Medical Billing And Coding

Eddie Vedder Society with Johnny Depp

inajman — Thu, 01 Sep 2011 17:03:15 +0000

Sharing my cool playlists

inajman — Tue, 30 Aug 2011 20:21:04 +0000

I’ve created new page where i will share some cool music i listen

Check it out

How to create DPI-aware splash screen

inajman — Tue, 23 Aug 2011 11:05:55 +0000

If you are developing Adobe AIR for multiple devices and mobile (Desktop, Android, iPhone, iPad), most definetely you will need to define splash screen for specific DPI.
It is pretty simple in Flex all you have to do is create your own preloader and override initialize method.
For mobile there is special class SplashScreen->Sprite which implements IPreloaderDisplay.The most convinent way is to extend this class.

package preloader
{
import mx.core.DPIClassification;

import spark.preloaders.SplashScreen;

import mx.managers.SystemManager;
import mx.utils.DensityUtil;

public class DPIAwarePreloader extends SplashScreen
{
	[Embed(source="/../asset/160dpi/splashScreen.png")]
	private var splashScreen160dpi : Class;

	[Embed(source="/../asset/240dpi/splashScreen.png")]
	private var splashScreen240dpi : Class;

	[Embed(source="/../asset/320dpi/splashScreen.png")]
	private var splashScreen320dpi : Class;

	public function DPIAwarePreloader()
	{
		super();
	}

override public function initialize() : void
{
	var runtimeDPI : Number = DensityUtil.getRuntimeDPI();
	var sysManager : SystemManager =
	this.parent.loaderInfo.content as SystemManager;

	var splashImage : Class;

	switch(runtimeDPI)
	{
		case DPIClassification.DPI_160:
			splashImage = splashScreen160dpi;
			break;

		case DPIClassification.DPI_240:
			splashImage = splashScreen240dpi;
			break;

		case DPIClassification.DPI_320:
			splashImage = splashScreen320dpi;
			break;
	}

	sysManager.info()["splashScreenImage"] = splashImage;

	super.initialize();
}
}
}

This will check for runtimeDPI property of your device and set the splash screen designed for specific DPI.

The last step is to add your preloader to the root Application by setting the preloader property in the mxml.

Flex AIR multi-device development

inajman — Fri, 24 Jun 2011 19:59:11 +0000

Adobe AIR

Application DPI
The DPI of the application. By default, this is the DPI of the device that the application is currently running on. When set in MXML, Flex will scale the Application to match its DPI to the runtimeDPI. This property cannot be set by ActionScript code; it must be set in MXML code.

Runtime DPI
The DPI of the device the application is currently running on. Flex rounds the value to one of the DPIClassification choices.

Find out more
DPI and PPI Explained

Building Multi-Density and Multi-Platform UIs with Flex by Narciso (nj) Jaramillo

Optimizing Performance for the ADOBE® FLASH® PLATFORM

DPI Auto Scaling for Density Independent Mobile Apps – Functional and Design Specification

Simple flex filter editor with source code

inajman — Tue, 07 Jun 2011 21:56:59 +0000

Here is the really simple flex filter editor that can be use as a foundation for exploring filter capabilities in flex.
All of the flex filters are pretty much just a wrappers for filters supported by flash player.And this is simple editor of these wrappers.

Filter editor with source code