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

Similar Messages

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!

Building Cascading Lists for Query Screens with ADF Business Components.

I build Cascading Lists for Query Screens with ADF Business Components. When I to select master list first working fine, but when I to select master list second returned error : JBO 25013 : Too many objects match the primary key oracle.jbo.key[CN]. CN dependences with key to detail list (Countries in this case). Please help me.
Andrew.

You would have a better chance, that someone answers your question, if you choose the right forum:
JDeveloper and ADF

Building Cascading Lists for Query with ADF Business components and JSP

I build Cascading Lists for Query Screens with ADF Business Components. When I to select master list first Ok, but when I to select master list second returned error : JBO 25013 : Too many objects match the primary key oracle.jbo.key[CN]. CN dependences with key to detail list (Countries in this case). Please help me.
Excuse me for my English.
Andrew.

You would have a better chance, that someone answers your question, if you choose the right forum:
JDeveloper and ADF

Does ADF Business Components work well with tables without primary Key?

We have tables using unique index without primary key. Can ADF Business Components relate business objects based on the unique index columns of the tables?

Hi,
Regarding my question about the XML syntax for custom properties:
It turned out to be another problem in the Entity object definition that caused the JDeveloper error. Other entities let me add the custom property without problems. However should anybody ever need that XML syntax, here's how you add a custom property to an entity definition in the XML code:
<Attribute
    Name="Id"
    IsNotNull="true"
    Precision="10"
    Scale="0"
    ColumnName="ID"
    Type="oracle.jbo.domain.Number"
    ColumnType="NUMBER"
    SQLType="NUMERIC"
    TableName="TABLE"
    PrimaryKey="true">
    <DesignTime>
      <Attr Name="_DisplaySize" Value="22"/>
    </DesignTime>
    <Properties>
      <CustomProperties>
        <Property
          Name="SequenceName"
          Value="SEQ1"/>
      </CustomProperties>
    </Properties>
</Attribute>Best regards,
Bart Kummel
Edited by: Bart Kummel on Sep 8, 2009 1:14 PM

NO Links or Associations created with the "Business Components From Tables"

Hello,
I have a strange problem. I'm working on a Fusion Web Applicaiton. In the Model project, I try to create some Business Components from Tables with the help of the provided wizard.
I select one of my IDE Connections, and I choose two of my tables as Entity Objects (*PATIENTS* and COUNTRIES - more details about them bellow), and also as Updatable View Objects. For Read-Only View Objects I select some other tables, afterwards I choose to create a default Application Module, and I press Finish without creating a Business Diagram. Everything works perfectly except of the fact that the wizzard has created everything but the Links and the Associations between my tables.
To be more precise, COUNTRIES is a simple table, only two columns - ID and NAME, and PATIENTS has some columns like ID, NAME, ADDRESS, DATE_OF_ADMISSION, COUNTRY_ID, where COUNTRY_ID is a foreign key to the COUNTRIES table. Both columns, PATIENTS.COUNTRY_ID and COUNTRIES.ID are NUMBERs. I was expectig the wizard to create a Link and a Association for this foreign key constraint I have between this two tables.
On the other hand, following one of the tutorials I've found, *"Developing RIA Web Applications with Oracle ADF"*, I've noticed that when I was creating Business Components from Tables based on the HR schema, all the Links and Associations were created as they were expected. I've also tried to create the same Business Components from Tables in my own project, and all the Links and Associations were in place. Somehow, it's not working for my particular schema (the one that contains PATIENTS and COUNTRIES).
Is there something I do wrong? I've made sure that all the FK constraints are enabled, alive and kicking. From my point of view, the tables are working and behavig as they should, but I can't understand why that feature of automatically creating the Links and Associations works on the HR schema but not on mine.
Please help!
Bogdan.
PS: I am using Oracle JDeveloper Studio Edition Version 11.1.1.1.0, Oracle SQL Developer Version 1.5.5, and Oracle 10g Express Edition installed on localhost.

Hello John,
Of course I can post the scripts.
The schema name is "TEST". But you should know that there are some extra columns in the PATIENTS table, I've not mentioned before. As you can tell from the scripts bellow, the PATIENTS table has the following columns: ID (number), NAME (varchar2), COUNTRY (number), GENDER (number), ADMISSIONDATE (date), DIAGNOSTIC (number), FIRSTNAME (varchar2), SALARY (number). There are actually 3 FK constraints, I've only mentioned one for the simplifying the example. The first FK constraint is towards COUNTRIES, the second one is towards GENDERS, and the final one is towards DIAGNOSTICS. All this 3 tables have only two columns (ID as number, and GENDER as varchar2). I will post the scripts for all.
Here is the output of the Export DDL to Clipboard from SQL Developer for the COUNTRIES table:
CREATE TABLE "TEST"."COUNTRIES"
(     "ID" NUMBER NOT NULL ENABLE,
     "NAME" VARCHAR2(1000 BYTE) NOT NULL ENABLE,
     CONSTRAINT "COUNTRIES_UK1" UNIQUE ("NAME")
USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ENABLE,
     CONSTRAINT "COUNTRIES_PK" PRIMARY KEY ("ID")
USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ENABLE
) PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ;
CREATE UNIQUE INDEX "TEST"."COUNTRIES_PK" ON "TEST"."COUNTRIES" ("ID")
PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ;
CREATE UNIQUE INDEX "TEST"."COUNTRIES_UK1" ON "TEST"."COUNTRIES" ("NAME")
PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ;
CREATE OR REPLACE TRIGGER "TEST"."COUNTRIES_TRG"
BEFORE INSERT ON COUNTRIES
FOR EACH ROW
BEGIN
SELECT COUNTRIES_SEQ.NEXTVAL INTO :NEW.ID FROM DUAL;
END;
ALTER TRIGGER "TEST"."COUNTRIES_TRG" ENABLE;
Here is the same output for the GENDERS table:
CREATE TABLE "TEST"."GENDERS"
(     "ID" NUMBER NOT NULL ENABLE,
     "NAME" VARCHAR2(50 BYTE) NOT NULL ENABLE,
     CONSTRAINT "GENDERS_PK" PRIMARY KEY ("ID")
USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ENABLE,
     CONSTRAINT "GENDERS_UK1" UNIQUE ("NAME")
USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ENABLE
) PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ;
CREATE UNIQUE INDEX "TEST"."GENDERS_PK" ON "TEST"."GENDERS" ("ID")
PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ;
CREATE UNIQUE INDEX "TEST"."GENDERS_UK1" ON "TEST"."GENDERS" ("NAME")
PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ;
CREATE OR REPLACE TRIGGER "TEST"."GENDERS_TRG"
BEFORE INSERT ON GENDERS
FOR EACH ROW
BEGIN
SELECT GENDERS_SEQ.NEXTVAL INTO :NEW.ID FROM DUAL;
END;
ALTER TRIGGER "TEST"."GENDERS_TRG" ENABLE;
Here is the same output for the DIAGNOSTICS table:
CREATE TABLE "TEST"."DIAGNOSTICS"
(     "ID" NUMBER NOT NULL ENABLE,
     "NAME" VARCHAR2(1000 BYTE) NOT NULL ENABLE,
     CONSTRAINT "DIAGNOSTICS_PK" PRIMARY KEY ("ID")
USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ENABLE,
     CONSTRAINT "DIAGNOSTICS_UK1" UNIQUE ("NAME")
USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ENABLE
) PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ;
CREATE UNIQUE INDEX "TEST"."DIAGNOSTICS_PK" ON "TEST"."DIAGNOSTICS" ("ID")
PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ;
CREATE UNIQUE INDEX "TEST"."DIAGNOSTICS_UK1" ON "TEST"."DIAGNOSTICS" ("NAME")
PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ;
CREATE OR REPLACE TRIGGER "TEST"."DIAGNOSTICS_TRG"
BEFORE INSERT ON DIAGNOSTICS
FOR EACH ROW
BEGIN
SELECT DIAGNOSTICS_SEQ.NEXTVAL INTO :NEW.ID FROM DUAL;
END;
ALTER TRIGGER "TEST"."DIAGNOSTICS_TRG" ENABLE;
And finally, here is the same output for the PATIENTS table:
CREATE TABLE "TEST"."PATIENTS"
(     "ID" NUMBER NOT NULL ENABLE,
     "NAME" VARCHAR2(1000 BYTE) NOT NULL ENABLE,
     "COUNTRY" NUMBER,
     "GENDER" NUMBER,
     "ADMISSIONDATE" DATE,
     "DIAGNOSTIC" NUMBER,
     "FIRSTNAME" VARCHAR2(1000 BYTE),
     "SALARY" NUMBER,
     CONSTRAINT "PATIENTS_PK" PRIMARY KEY ("ID")
USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ENABLE,
     CONSTRAINT "PATIENTS_UK1" UNIQUE ("NAME", "ID")
USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ENABLE,
     CONSTRAINT "PATIENTS_GENDERS_FK1" FOREIGN KEY ("GENDER")
     REFERENCES "TEST"."GENDERS" ("ID") ENABLE,
     CONSTRAINT "PATIENTS_DIAGNOSTICS_FK1" FOREIGN KEY ("DIAGNOSTIC")
     REFERENCES "TEST"."DIAGNOSTICS" ("ID") ENABLE,
     CONSTRAINT "PATIENTS_COUNTRIES_FK1" FOREIGN KEY ("COUNTRY")
     REFERENCES "TEST"."COUNTRIES" ("ID") ENABLE
) PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ;
CREATE INDEX "TEST"."PATIENTS_INDEX1" ON "TEST"."PATIENTS" ("NAME")
PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ;
CREATE UNIQUE INDEX "TEST"."PATIENTS_PK" ON "TEST"."PATIENTS" ("ID")
PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ;
CREATE UNIQUE INDEX "TEST"."PATIENTS_UK1" ON "TEST"."PATIENTS" ("NAME", "ID")
PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS" ;
CREATE OR REPLACE TRIGGER "TEST"."PATIENTS_TRG"
BEFORE INSERT ON PATIENTS
FOR EACH ROW
BEGIN
SELECT PATIENTS_SEQ.NEXTVAL INTO :NEW.ID FROM DUAL;
END;
ALTER TRIGGER "TEST"."PATIENTS_TRG" ENABLE;
If a complete DB dump would be more helpful, please let me know. I am willing to provide any details.
Thanks for your support.

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?

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.

Business Components from Tables

Hello to all.
I'm new on Oracle ADF.
I have a question: I create the objects froma DB by wizard Business Components from Tables.
Model: Project.xml
View: ProjectView.xml
Data Control: ProjectView
I created a jspx page, and I add ADF Table by data control.
Now I want to manage the current row seleted by java code. How can I do this? I haven't any java code for my models....
Thanks,
Cristian

Ok,
In a table a select a row after that I click on a edit button.
Now I have to take from the select row the field XML data (it's a XML DATA TYPE) parse it and add dinamically to the page ADF Components. The XML is like:
<root>
<template>
<inpuTextComponent title="Project title" creator="lucas" description="Some text"/>
<dateComponent title="Date" creator="lucas" description="Some text"/>
<fileComponent title="File of project" creator="lucas" description="Some text"/>
</template>
</root>
I've create the code for adding dinamically the components on page ( [on this thread|http://forums.oracle.com/forums/message.jspa?messageID=4085681#4085681] ) but I need to accesso to the selected row for read and also update the data.
Cristian

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();
if(employees.hasNext()) {
EmployeesRowImpl employee = (EmployeesRowImpl)employees.next();
employeeDTO = new EmployeeDTO(employee);
return employeeDTO;
public EmployeesImpl getEmployees() {
return (EmployeesImpl)findViewObject("Employees");
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 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

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

Best Practices ADF Business Components

Hi all,
I'm reading the Dev Guide of ADF Business Components, and I've some questions:
a) In the business tier, Which is the best way to create new rows in the db? I've found two ways: Using a ViewObject and then call create and insert or using the EntityDefinitionImpl object and call the createInstance2 function.
b) In the business tier, which is the best way to search for a row in the db? I've found two ways: Using findByKey on the ViewObject or using the findByPrimaryKey on the EntityDefinitionImpl object.
Thanks!

Hi,
a) use a ViewObject
b) also I would think its the ViewObject
Frank

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 - Cascading Tables

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