atjamil » J2EE

Tutorial: Using EJB 3.0, ADF Data Model & ADF Faces

atjamil — Wed, 26 Mar 2008 02:41:23 +0000

I’ve created a tutorial on how to develope JEE5 application. EJB 3.0 (stateless session bean) is used as business tier, ADF data model as model layer and ADF Faces as view layer. The tutorial is adapted from Appendix A, Practice & Solution , Oracle AS 10g R3: Build J2EE Applications 1.

Download tutorial (V 1.1)

If you find any error or bugs, please e-mail me or leave a comment.

Thank you

JEE components for our next project

atjamil — Tue, 18 Mar 2008 06:31:32 +0000

After a long discussion, finally we have come out with a solution of what JEE components we will choose for our next project phase. Here are the combinations:

Persistence layer: JDBC & Plain SQL
Business layer: Stateless session bean (EJB 3.0)
Model layer: ADF Model layer
View layer: JSF (ADF Faces)

We feel, this the best combination for us, considering all the factors that may contribute to the application development.

Overriding Declarative Methods in ADF Model

atjamil — Tue, 12 Feb 2008 14:05:27 +0000

Much of what we need can be handled declaratively through the various bindings and use of expression language. However, it is inevitable that you will need to write code that will interact with the bindings, either in the form of:
i)Accessing (read & set) bound data values and ii)Manually executing operations and method…….Please download to read the rest.

Download

Business Layer

atjamil — Wed, 23 Jan 2008 16:47:55 +0000

I’m currently developing J2EE application for my organisation. But now, I’m still evaluating the technology for business layer. Between Plain Old Java Class, EJB 3.0 and Toplink, which one should I choose? I prefer simplicity, and i think plain old java class is the best candidate. Any harm to use plain old java class for business layer? (FYI: View layer-ADF Faces & Model layer-ADF data model (Data Control & binding).

Understanding ADF Model Layer (Data Control & Data Binding)

atjamil — Sat, 19 Jan 2008 11:36:38 +0000

Get pdf file on how to understand ADF Model Layer. You may download the presentation from here: download

TUTORIAL: Using EJB 3.0 as a business component for ADF Faces

atjamil — Sat, 19 Jan 2008 11:24:24 +0000

This tutorial will show how to use EJB 3.0 as a business component for a JSF page. ADF data control/binding will be used.

Download Tutorial: TUTORIAL: Using EJB 3.0 as a business component for ADF Faces

TUTORIAL: Using Plain Java Class as business component for JSF page (Without modifying Page Definition File)

atjamil — Wed, 02 Jan 2008 03:56:50 +0000

This tutorial is similar with my previous posting. The only different is, page defintion file is not modified.

Download tutorial: TUTORIAL: Using Plain Java Class as business component for JSF page (Without modifying Page Definition File)

TUTORIAL: Plain java class and ADF Faces

atjamil — Wed, 02 Jan 2008 01:16:21 +0000

This tutorial will show how to use plain java class as business component for a JSF page. ADF data control/binding will be used.

Download: TUTORIAL: Using Plain Java Class as business component for JSF page

Oracle ADF (Application Development Framework)

atjamil — Fri, 11 May 2007 23:46:33 +0000

ADF adalah singkatan kepada Application Development Framework

Ia adalah kepunyaan Oracle (Oracle proprietary). ADF meliputi:

Oracle ADF Business Components (Business Components for Java: BC4J),
ADF Model layer (creating data controls from Java components, EJBs, or Web services),
ADF’s data actions or data pages in Struts,
ADF UIX,
ADF Swing (JClient) dan
ADF Faces.

Walaupun Oracle telah menyerahkan/menyumbangkan ADF Faces kepada komuniti sumber terbuka (Open source), dia ia telah dinamakan sebagai Trinidad. Tiada ura-ura oracle akan menyumbangkan keseluruhan ADF kepada komuniti sumber terbuka. ADF Faces yang masih berada di Oracle, masih memerlukan lesen ADF bagi penggunaannya. ADF Model Layer merupakan framework bagi pembangunan aplikasi J2EE secara pantas (rapid) dan mudah. Oleh kerana ia adalah hakmilik Oracle, ia hanya boleh digunakan pada Oracle JDeveloper sahaja, bagi pembangunan aplikasi J2EE.

Berdasarkan pengalaman saya membangunkan aplikasi kecil, saya dapati dengan menggunakan ADF Model Layer , pembangunan aplikasi menjadi lebih pantas dan mudah. Banyak proses hanya menggunakan drag & drop sahaja. Anda boleh mencuba tutorial saya, seperti: TUTORIAL: Create Clients (Java Client and JSF client) for web services; Part 3, TUTORIAL: ADF Faces: Passing parameter values between JSF page -Part 3, TUTORIAL: ADF Faces : View data from session EJB (Part 2). Secara keseluruhan ia dapat menyokong Rapid Application Development (RAD), sudah pasti ia dapat menjimatkan masa pembangunan aplikasi yang besar.

ADF (design-time) adalah tersedia ada bersama Oracle JDeveloper. Dari semakan yang telah saya buat, aplikasi yang dibina dengan ADF boleh dideploy ke mana-mana Oracle Application server atau bukan Oracle seperti JBoss dsb, tetapi anda perlu membayar lesen penggunaan ADF runtime, dengan kadar $100.00 per named user(Named user license) atau $5000.00 per processor(CPU license). Kadar ini adalah penggunaan ADF yang bundled dengan Toplink (Oracle proprietary juga). Saya difahamkan penggunaan ADF untuk ujian pada JDeveloper/standalone OC4J, tidak dikenakan lesen.

Lesen ADF

Berikut adalah semakan yang telah saya buat terhadap lesen ADF.(Sila betulkan jika saya salah).

Jika menggunakan ADF(Semua ADF technology), anda perlu membayar lesan ADF, jika anda menggunakan non-Oracle Application Server.
Jika anda menggunakan ADF Faces(bukan trinidad) yang anda download dari Oracle, anda perlu membayar lesen ADF juga, melainkan jika anda menggunakan Oracle application server.
Jika anda menggunakan ADF Faces(Trinidad) yang anda download dari Apache, anda adalah terikat dengan lesen Apache.

Sila semak di sini:
http://forums.oracle.com/forums/thread.jspa?threadID=379312