Oracle ADF Business Components Vs PL/SQL Application

Hi,
Has anybody used Oracle Application Development Framework's Business Components (ADF BC)? What are the disadvantages and issues that you faced? Can anyone compare PL/SQL with ADF BC?
Would like to know the advantages and dis-advantages of both the technologies(PL/SQL and ADF BC).
Can anybody help on this?

Hi,
Not sure what exactly you are looking for.
But let me explain so that you can get some idea of their working and ofcourse difference.
ADF BC which are nothing but the Entity Objects (EO) and View Objects (VO) which are the Java representation of the DB.
EO is like database table and is a 1-o-1 representation of the underline database table as a Java class file.
VO is like database view and is always based upon some custom SQL or combination of one or more EOs.
For developing a Database based application you always layer where you can handle the database objects and can also write the business logic or validation for the
data entered at the UI.
PLSQL is straight forward is the language to write business logic at the database level.
I hope this will give you some details.
Thanks,
KKCHOPRA

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How execute pl/sql command from Oracle ADF Business Components

can't find examples for how execute pl/sql command from Oracle ADF Business Components and how call pl/sql package procedure from ADF Business Components.
insert,update,delete rows in view object instance cache is good but if i must do some complex operations while insert,update,delete rows..it's more better for me to call
pl/sql procedure from oracle db.Am i wrong ????

Roman,
this should be similar to how it worked in JDeveloper 9.0.3. hava a look at <JDev903 Home>\BC4J\samples\StoredProc for a code example.
Frank

Oracle adf business components

Hi All,
I have an use case.like I need to load list of values from database.The list of values should be from a join query two tables.I want to use the ADF BC here
and once user select the value from the lov the selected value has to and sit in database table via a java class.How this can be achived.
I had created the adf business componet and i can see the tables in datacontrol and views and entity objects in model.how to proceed further to achive my use case.
Regards,
Smaran

Create a managed bean. Just have two input fields in jspx and an action say commandbutton.
Create two bindings for the text and password fields. Also for action, bind a method in bean.
Drag and drop any field from the VO you created and remove the fields from JSPX so that the iterator for it wil be available in pageDef
<af:inputText binding="#{beanName.name}">
<af:inputText binding="#{beanName.pass}">
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Regards,
Srinidhi
Edited by: Srinidhi on Mar 23, 2011 4:36 PM

Refresh ADF Business Components

I create view(ADF business components) with my sql statiment
select e.*,d.* from scott.emp e, scott.dept d where e.deptno=d.deptno
on my first page JSP I drop ReadOnly table
on my second page JSP i drop InputForm for edit.
and so
I run my project, on first page have the button "Edit" which is bound my JSF Navigation Case with second page.
I try edit emp.DeptNo and commit change. When I back on first page i see that emp.DEPTNO changed but dept.DNAME not changed.
How I can refresh my first page that see all changed?

Hi Frank!
I use JDeveloper 10.1.3 EA1.
I Create Application through Application Template (Web application [Default] -
This application template is configured for building a data-bound web application. It consists of one project for the view components (JSF, JSP) and controller (JSF), and another project for the data model (ADF Business Components))
I create page through faces-config.xml.
I create JSPX page. Then I Drag and Drop my VO from Data control palette.
My CommandButton from ADF Faces core from Component palette.

Modifying SQL used by ADF Business components

How can we modify the query used by ADF Business components that are generated from database tables by dnd in JDeveloper?

I would like to change the where clause at runtime based on some configuration that can be changed while application is up and running. Can I just over ride the getWhereClause of the ViewObjetcImpl for that?

Oracle ADF Business Service Layer Technologies

Hello,
We are building an online shopping mall/site that is expected to receive order volume of 50-60 thousand orders per week. So obviously, data traffic generated by the site will be pretty heavy. The technology set we are supposed to use is Jdeveloper 10g with ADF. Currently ADF business service layer offers following set of technologies. The question is which of following technologies meets these four criterias the BEST? (1) Security, 2)24x7 Reliability and Maintenace overheads (3)Speed /Performance of the server response to client requests (4) integration with Oracle database.
Please advise. Any technet/metalink oracle document that compares these various business layer technology would be great indeed.
Business service technologies that I am talking about is mentioned below
Enterprise JavaBeans (EJB) Session Beans
Since most J2EE applications require transactional services, EJB session beans are a logical choice because they offer declarative transaction control. Behind the EJB session bean facade for your business service, you use plain old Java objects (POJOs) or EJB entity beans to represent your business domain objects. JDeveloper offers integrated support for creating EJB session beans, generating initial session facade implementations, and creating either Java classes or entity beans. You can also use Oracle TopLink in JDeveloper to configure the object/relational mapping of these classes.
JavaBeans
You can easily work with any Java-based service classes as well, including the ability to leverage Oracle TopLink mapping if needed.
Web Services
When the services your application requires expose standard web services interfaces, just supply Oracle ADF with the URL to the relevant Web Services Description Language (WSDL) for the service endpoints and begin building user interfaces that interact with them and present their results.
XML
If your application needs to interact with XML or comma-separated values (CSV) data that is not exposed as a web service, this is easy to accomplish, too. Just supply the provider URL and optional parameters and you can begin to work with the data.
ADF Business Components.
These service classes are a feature of the ADF Business Components module, and expose an updateable dataset of SQL query results with automatic business rules enforcement.
Thanks
Ruchir

So the quote says "technologies Oracle recommends to J2EE developers" which is correct - if you are an experience Java EE developer the TopLink/JPA/EJB stack should be your choice however if you are coming from a 4GL/Enterprise developer background then the recommendation is here:
http://download.oracle.com/docs/html/B25947_01/intro002.htm#sthref21
For enterprise 4GL developers building new web applications, Oracle recommends using JavaServer Faces for the view and controller layers, and ADF Business Components for the business service implementation. This combination offers you the same productive J2EE technology stack that over 4000 of Oracle's own enterprise 4GL developers use every day to build the Oracle E-Business Suite. Since its initial release in 1999, several thousand external customers and partners have built and deployed successful Oracle ADF-based applications as well. Both now and in the future, Oracle and others are betting their business on Oracle ADF with ADF Business Components.
And yes ADF BC can be exposed as EJB - but this is usually only used for remote deployment of ADF BC when they are on another server than the UI code - for example when using Swing.

Problem to deploy to a WebService interface for ADF Business Components to Weblogic Server

Hi,
I'm trying to deploy a custom application ,in which i have exposed ADF Business Components through a WebService interface, to a standalone weblogic server.
Application Module is configured with a Service Interface for ordinary ViewObjects.
Now I want to create a EAR file of this application to deploy it on the weblogic server.
But I got an error while deploying it.The error i am getting is shown below.
ERROR: No Java EE modules detected in EAR archive. Deployment aborted. == (oracle.jdevimpl.deploy.ear.WeblogicAssembler)
I have followed the steps mention in the below link :
http://technology.amis.nl/2010/12/29/quickly-creating-reploying-and-testing-a-webservice-interface-for-adf-business-components/
I'm using Jdeveloper 11.1.2.4 on windows.
Please suggest what i could be doing wrong.
Regards,
Himanshu

Does the deployment profile include Java EE modules?
Refer
Java EE Developer: ERROR: No j2ee modules detected in EAR archive. Deployment aborted. == (oracle.jdeveloper.deploy.Veto…

Help required building ADF-Swing/ADF-Faces using ADF Business Components

My question is in regards to how you can go about building a light swing application to an ADF model?
In particular if I were to say that we were developing a 3-tier project whereby we had a database tier, a series of EJB-ADF façade session beans to the database (middle-tier), and a swing client communicating with the session beans (view-controller tier), how would you go about developing these screens?
In particular can we develop these screens using ADF-Faces and also ADF-Swing?
The EJB session façade beans of course are ADF app modules with customised methods. The methods would return back customised DTO objects. These DTO objects are wrappers to row objects ADF would create. This would be mainly due to making these facade beans web service enabled (Oracle state that these methods cannot return oracle.jbo objects if they are to be web service enabled).
This would be typically deployed to an app server, like Oracle App Server 10G.
Could you please have a look at this, as I am doing a lot of research into this.
eg. Taking example from oracle magazine sept/oct 2006
with slight enhancements
package oramag.frameworks.example.common;
import oracle.jbo.ApplicationModule;
import oramag.frameworks.customdto.EmployeeDTO;
public interface HRService extends ApplicationModule {
void deleteCurrentEmpAndCommit();
EmployeeDTO findEmployee(int employeeId); // new method
import oramag.frameworks.customdto.EmployeeDTO;
public class HRServiceImpl extends ApplicationModuleImpl {
public void deleteCurrentEmpAndCommit() {
Row empRow = getEmpView().getCurrentRow();
if (empRow != null) {
empRow.remove();
getDBTransaction().commit();
public EmployeeDTO findEmployee(int employeeId)() {
EmployeeDTO employeeDTO = null;
EmployeesImpl employees = getEmployees();
employees.setNamedWhereClauseParam("EmployeeId", employeeId);
employees.executeQuery();
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Now given the above code snippet, how could you turn this into an ADF-Swing/ADF Faces application so that if a user using the swing application enters an employee id, then the application will execute the query on the app server, the app server in turn returns the results to the client, and the client finally display the results. Typical MVC example.
Cheers
Rodney

The tutorial is for ADF BC used with JavaServer Faces.
While the tutorial doesn't cover it, we also support drag and drop development for Swing and visual WYSIWYG layout for Swing panels and windows, too. For a very simple example, watch screencast #4 on my blog here:
http://radio.weblogs.com/0118231/stories/2005/06/24/jdeveloperAdfScreencasts.html
One thing I have noticed is that when using ADF business components, when the app module returns a custom DTO object like the above example, it returns the data in a element structure according to the data control palette.
You don't generally ever need to create your own custom DTO's when working with ADF for use by client UI's. The only situation where can be necessary -- until we simplify this in the JDeveloper/ADF 11g release -- is when you desire to expose custom methods that can return sets/arrays of typed row structures through a web service. However, web services are not involved/required in building 3-tier Swing applications.
When dropping onto a page it does so like a string and doesnt give option to display the data in a read only form etc. Is there anything we need to do, to get the functionality.
It's more of what you don't need to do :-)
Just leverage the active data model that the ADF application module provides. You can read more about it in section 4.5 "Understanding the Active Data Model" of the ADF Developer's Guide for Forms/4GL Developers on the ADF Learning Center at http://www.oracle.com/technology/products/adf/learnadf.html). Your UI's bind to view object instances in the data model, and your UI's are automatically kept up to date without needing to write methods that return data. I short article I wrote that preceeded my writing the ADF Developer Guide content on this topis is here:
http://radio.weblogs.com/0118231/stories/2006/01/26/theAdfBusinessComponentsActiveDataModel.html
I know that when dropping a view object you get this functionality. Also was wondering if we were to pass an object of thios type back to the model it might not give us the rich functionality like input forms, like what Oracle provides if we were to drop a enitity view object.
Just use the active data model and everything becomes totally easy, with no changes required to switch between local or three-tier deployment configurations.
Trying to do everything with hand-coded DTO beans is really going the hard way.
Could you help us regarding this?

ADF Business Components - Cascading Tables

I am using Oracle Jdeveloper 11.1.1.4.0
I have tried an approach to cascade two tables using ADF Business Components.
A single column is declared as Foreign key.
I have used 2 drop downs. During the value change of the first drop down, the values of second sholud be populated from data base.
How to achieve this using cascading tables.
Kindly help.

Hi,
For creating cascading(dependent) LOV in adf,list of values in ADF Application using BC4J as model.please follow below links,
https://blogs.oracle.com/aramamoo/entry/how_to_create_multi_level
http://mjabr.wordpress.com/2011/04/01/cascade-list-of-values/
Best Regards
Siva Sankar

Why ADF Business Components and TopLink

Hi All,
Why are there two types of components in Businses Tier? (ADF Business Components and TopLink). Even through there are other types, I can visualize the use of other components but ADF Business Components & TopLink seems to serve the same requirement.
Can some one provide me information on what is the difference between these two and when to use which one?

ADF Business Components (aka BC4J) are different from Toplink from approach point of view. Basically if you are more comfortable with SQL and want fine grain control over what and how SQL are run against the database, BC4J is the way to go, because, it's you who write the queries(in ViewObjects)
If you are from more of java backgroup and can visualize things in term of Object and relationships among objects, so on and so forth then Toplink would be the right choice.
Pls see the post by Shay in his blog:
http://blogs.oracle.com/shay/2006/03/10
regards - rutwik

ADF business components and scalability ?

Hello,
I am new to the ADF Framework, I come from an open source background.
I have a limitation to use Oracle technologies for an internet banking design.
My concern is the large number of users accessing the system and how we scale up through clustering.
Do you recommend ADF business components for this application, can ADF be simple POJOs handlers or EJB 3.0 session facades ? if that is the case, would you recommend EJB 3.0 for clustering and scalability for an internet banking system.
Any guidance is appreciated.
Thanks.

Thanks for the reply, I will read the document, however,
If I try to compare ADF to other frameworks, creating BCms as POJOs would take advantage of the Apache clustering(web tier, same as Tomcat clustering in Jboss), there is no need for OC4J services of the 10gAS, on the other hand, if I go with EJB3 stateless session beans BCms then i would need 10g OC4J container and its clustering capability(AS clustering).
Your time is appreciated and please respond only if you time, i will go through the doc.

Adf business components n Ejb Concepts

peoples. sorry for asking this silly doubts.
reason behind this question.
most often use the adf business components i doesnt know it. but now i am learning with help experts blogs. In some blogs, peoples using Ejb concepts.
but ,some what i know ejb.
My doubt:
for desiging an transaction oriented projects. and multiple peoples work on my form.
what should i use.
ejb or adf business componets. which is suitable for the transaction orientation.
please guide me.....

Either is suitable for transaction semantics.
Which one you choose would likely depend upon your background. If you are already well versed in EJB/JPA, then you would follow that approach. If you are already versed in ADF BC or Oracle Forms, then ADF BC would be a logical choice. I will also say that Oracle seems to have invested more effort in the ADF BC side of things, so if you are still undecided, then maybe that observation can sway you to the ADF BC side.
john

ADF Business Components from Tables - adding more tables

Hi.
I have already created a ADF Business Components from Tables and added tables from the Oracle database.
My question is:
Is it possible to add more tables to the same Business Components model?
Not as a new Component Table, but with the same tables so i can use the same relations and mappings?

Hi and thanks! Yes, I am talking about recreating a the same View Object that i already has created. In my first model i had the tables Name and Address. I want to add a new table called zipcode to the same View som i can choose colums from the zipcode-table in the same View as Name and Address.
I'm not shure what you mean by Data Model tab? Can you spesify?
Thanks!

Where to learn ADF business components??

hi,
can you please share a link regarding about using adf business components references. any ebook or book titles would also be appreciated. :D
regards,
simon
Edited by: 848858 on Apr 24, 2011 3:27 AM

Also this book:
http://blogs.oracle.com/grantronald/2011/01/learning_adf_and_jdeveloper_is_a_top_seller.html
Regards
Grant

Integrating ADF Business Components from heterogenous data sources

Hi all,
has anybody experience in integrating ADF Business Components from heterogenous data sources like ViewObjects from a DB2 database as LOV in a ViewObject from a Oracle 11g?
What is the best practice approach to integrate such different ADF Business Components in declarative and programmatic ways?
Thank you!

thank you for the answer! We already updated out BC according to http://www.oracle.com/technetwork/developer-tools/jdev/multidatabaseapp-085183.html
The DB2 ViewObjects are exported as ADF Libraries and imported in the BC of the project with Oracle DB ViewObjects. In the root AM I created instances from the imported DB2-ViewObjects as well as from the Oracle-ViewObjects, but when I start AM test environment it takes the preconfigured Data Source of the root AM. So I probably will pesneed to create two AMs for the different ViewObject types and for the two connection types. My question is what will be best practices to use data from the DB2-VO of AM_DB2 in the OracleDB-VOs as part of AM_Oracle? Should it be done only programmatically or can it be done also declaratively and any suggestions how to proceed?
Thank you!
Edited by: nbo on Jun 3, 2012 2:53 AM

Oracle ADF Business Components Vs PL/SQL Application

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