ing. Salvatore Fusto

Generic Bean: simple validation

Salvatore Fusto — Thu, 04 Feb 2010 09:03:53 +0000

In my previous post i write about a generic base bean to be extended in concrete classes. In a recent application i needed some simple validation rules to mantain the object in a consistent state, so i decided to add a couple of custom attributes to properties:

min: min lenght for string or min value for numeric;
max: max lenght for string or max value for numeric

I also added a generic validation method to the base class.

New code and sample can be downloaded from here.

OOP – Generic Setters and Getters

Salvatore Fusto — Tue, 02 Feb 2010 07:49:24 +0000

When writing a CFC that models an object of a domain, you can have a bunch of properties and then a bunch of setter’s and getter’s methods, a couple for each property. Basically each setter sets a property with a value passed as argument, and each getter retrivies the value of a property .

Instead of writing a setter/ getter couple for each property, we can surely write abstract methods adding an argument to each method to specify the property we will set or retreive.

Now that you have defined generic methods, the next step is to write a base class containg the abstract methods just defined, and write concrete classes that extend the base one, in which you’ll define only properties. Other than generic setter and getter, the base class has methods to verify if a property is settable and/or gettable, if a value passed to set a property is of the same type of the property ecc. To do so, you use tag’s standard and custom attributes.

I ‘ve used this method for a long time. You can download code and samples.

Box(dot)net

Salvatore Fusto — Thu, 28 Jan 2010 10:17:58 +0000

Vorrei segnalare un servizio di file sharing che consente di fare l’upload di files di vario tipo e di condividerli; il servizio è molto user friendly da usare, e il download è immediato.

I’d point out a file sharing service to upload and share files; very user-friendly to use, with an immediate download.

salvatorefusto.wordpress

Salvatore Fusto — Thu, 14 Jan 2010 10:50:19 +0000

Ho deciso di spostare il mio blog su wordpress.

Today i’ve moved my personal blog on wordpress