Assembly of business components

Similar Questions

• ADF against the REST business components to access data

  Hello

  JDeveloper 12.2.1

  We are about to build a custom application of ADF that must run completely on the site.

  Given that we build it from scratch, we want to start with last 12.2.1
  

  There is also no specific use cases where another application has consumed our application services.

  With the recent versions of JDeveloper and ADF, there was a lot of improvements made to REST etc. and other industry standards

  I came across some discussions about to consider the use of these new features

  https://groups.Google.com/Forum/#! Searchin'/adf / methodology/repairman$ 20services/adf-methodology/u0dz4x4w2xU/15xrimlxQaYJ

  https://groups.Google.com/Forum/#! Searchin'/adf / methodology/repairman$ 20services/adf-methodology/zpMv4PqOKhI/Qws0C4IBBYAJ

  We plan to use the default ADF Business components to access data, because our requirements and I am more inclined to the use of these.

  That is to say, using the ADF business components based on database objects directly (using a thin driver for data source)

  But I also want to determine if there is any other good reasons to use other ways to talk to the database (such as RESTful services) as shown in the links above.

  I believe, if we must use RESTful services to access the data, then it should be in the following scenarios.

  a. If the database is on a cloud (as if we use DaaS)

  b. There are already services available for the access to these data, and just build the user interface

  But if we build the application from scratch, which is supposed to be running on site, then I would choose the ADF business components to access data via a thin driver for the data source.

  Someone can correct me if I am wrong in my thinking?

  Thanks for any help.

  Sameer

  Without knowing your situation, I would say that it seems that the use ADF BC is the right way to go.

  It will allow you not only to access your database, but also add logic and to create complex data structures and relationships – all in a layer that is outside your database.

  Your ADF UI can then link directly to this ADF BC layer.

  If in the future you will need other interfaces to access the same logic through REST services - then that in 12.2.1 you can expose ADF BC as REST services will give you this ability.

• EJB or ADF (with the HELP of REST), the 12 c ADF business components

  Hi all

  I have a simple question to ask. I need to create a project to expose Web services from another project and third party possible.

  I need to use Rest services producing Json.

  So my question is: can I create my Web services using EJB or ADF business components? That who and why?

  EJB seems to be a little more simple/fast to implement.

  Best regards

  Luis Cabaco

  You have experience in the use of EJB or ADF BC in other projects? This could influence your decision.

  This moment (12.1.3) to produce the JSON ADF BC, you will need to code the solution.

  The plan should provide declaratively to expose REST JSON ADF BC in the next 12.2.1 release.

• ADF business components

  Hello

  In Jdeveloper 11g from, we have many ways to create models and objects of the base entity.

  For example new slot > > ADF components we have two choices a) create table Table b) ADF entity objects ADF business components

  My question is: what is the difference between the two and which is more standard and recommended method of creating CRUD application?

  Thank you

  Rubi

  Hello

  It's like asking which way in Rome. The result is the same that you find yourself in Rome.

  The business components of table creates EO, VO, and AM only once and it is easy to start (a beginner option).

  Table OS, this is for when you want to create the template manually. If you are a developer experienced ADF BC who knows how to build from VO of entity objects, but also associations and view links manually then this option more puts you in control, so to speak. (option expertise and probably my choice)

  But as said, the end result is the same, you find yourself in Rome.

  Frank

• Customization examples of Error Messages from the Business components

  Hi I followed this example and this: http://jobinesh.blogspot.de/2011/03/customizing-business-components-error.html, I followed the instructions but its does not work wins my request I re - create the problem, I check with the sample of work I did everything what I see in the sample of work, but mine does not always someone can check what I'm missing I download in this host file I used http://www.datafilehost.com/download-9d37bd8a.html hr diagram. am using jdeveloper 11.1.1.6.0
  I created the two class and one of them

  <Application xmlns="http://xmlns.oracle.com/adfm/application"
               version="11.1.1.59.23" id="DataBindings" SeparateXMLFiles="false"
               Package="view" ClientType="Generic"
               ErrorHandlerClass="view.CustomErrorHandler"
  
  what else am i missing what have i not done,i know am mssing something but don't know what,the sample does not show step by step implementation,it just have a working solution,if somebody know step by step  implementation can you pls explain to me

  Published by: adf009 on 12/03/2013 12:09
  
  Published by: adf009 on 03/20/2013 14:44

  Hello

  Well, you've learned that samples should be provided on the HR diagram. Also try to put the steps to see the mentioned number.

  Anyway, here's the anwer-

  You missed a step. See link [Fusion Developer Guide | http://docs.oracle.com/cd/E14571_01/web.1111/b31974/bcadvgen.htm]... Go figure - 'Figure 37-9 project properties displays Message Resource Bundles' - this is the step failed. So just add your package customized to the ADF BC project.

  This should solve you problem... Let me know if you need examples updated the.

  Thank you
  Rajdeep

• How to get settings regional user of business components

  Hello
  
  How can I get the settings regional user in business components?
  
  For example, I want to use the locale in a vo query where clause:
  
  Select location_id
  sites
  where country_id = local
  
  is there an expression for the locale of the user?
  
  Thank you.

  You can create a connection variable: countries with this groovy expression:

  adf.context.locale.country
  

  And in the query:

  where country_id = :country
  

  AP

• Import of business components of JDev 10 g to 11g

  I have an old project UIX heading 2002 which uses hundreds of business components, and I need to migrate this project in order to use the ADF faces.
  
  I wish I could reuse the business components if possible, so I've implemented a new application of ADF faces in Jdeveloper 11.1.2.0, and I tried to import the business components using file-> Import and select 'Business components' that gave me the option to select a xml, jpx, jar or zip file.
  
  I tried the jpx first, and I got an error like the following dialog box:
  
  Cannot find the file on the source path or class.
  C:\dev\kalkyle\acoglobal\AcoGlobalBc.JPX
  Make sure that the file is on the way to source or a project category.
  
  Then I tried a xml for a view objects and I got the same message.
  
  
  Why a file I am trying to import from another project should already be on the source path or class? Which path source or class is he referring?
  
  Is there another way to do what I'm trying to reuse a UIX project business components in a new project of the ADF?
  
  
  Thank you.

  Have you tried to convert the project to 11g by simply opening the fichiers.jws/.jpr? Depending on the version of the original project, you might need to open first using an intermediate version.

  You should make a backup first!

  John

• where to learn ADF business components?

  Hello
  
  can you please share a link regarding on the use of references to adf business components. all ebook titles or a book would also be appreciated. : D
  
  Kind regards
  Simon
  
  Published by: 848858 on April 24, 2011 03:27

  http://blogs.Oracle.com/Shay/2010/02/how_do_i_start_learning_oracle_adf_and_jdeveloper.html

  should give you a start.

  Timo

• ADF business components: create a form to add a new record

  Hello
  
  I use Oracle JDeveloper 11g Version 11.1.1.2.0 and ADF framework to build the application. My application is using Oracle ADF (data controls) business components.
  
  I am trying to create a form that allows a user to enter data for a new record and then validate this record. I was able to create the shape of the ADF and CreateInsert and commit buttons doing drag and drop the opinion of the entity and its operations since the data controls. This allows to add a new record to the table using two command buttons (createInsert and validation).
  
  I need to do it using only one button. How can I do?
  
  Thanks, Alex

  Not really clear on your use case, but [url http://blogs.oracle.com/shay/2010/04/doing_two_declarative_operatio.html] This shows how two declarative actions with one click

• Creation of business components of Teradata tables

  I am using the wizard 'business components of the tables' using a connection to a Teradata Database. Business components created without attributes. I get an error where JDeveloper think that Teradata table is a primary key. But I created the primary of the table (not to be confused with a primary index, which is a different primary key object in Teradata) explicitly. Am I really not supposed to use ADF to deal with Teradata databases? I was hoping that ADF would be able to work with databases other than Oracle. Maybe is there something special that needs to be done for the Assistant to business components to recognize the primary key of the table of Teradata? If we need create all objects manually Teradata company ADF is not an option of goo for Teradata.

  This page documents the DBs we certify with:

  http://www.Oracle.com/technology/products/jdev/htdocs/11/database.html

  If Teradata is SQL92 compliant this should work in theory, but that their JDBC driver is missing certain aspects of a correct application of metadata interfaces, it could break the functioning of our assistants in design time.

  You may need to create the EO attributes by hand in this case.

• Active Data Guard on DB 11 g and ADF business components

  Does anyone has experiences using business against a data source Active Data Guard components? Y at - it something ADF BC specific, you might need to know/set up regarding the parameters of the Application Module. Of course, we would read only your with her. Sorry it kinda turns out to be a beautiful finished question just want to know if it's a go or one thing more than any other possiblity.

  TheOtherDave,

  It should work perfectly. One thing you will need to know is the passivation of State mechanism used by ADF BC can use a store based on files or DB-table-based store. Obviously, if you want to use the DB-table-based store, you will have to configure it to point to a database where you can write to DB tables, which will be probably different from your database pending of DG. Otherwise, I can't think of specific issues (but I don't him have not personally tested).

  John

• ADF 12 c - create and consume WebService using SOAP and business components

  Hi all!

  I am trying to create two separate projects. One who creates Web services using the components of the company and another to consume these services.

  For now, I created the basic operations of VO (search, update, Get,...) and even a find with use of criteria.

  I can easily use the Get functions (by id), nor on the criteria to get a customer by one of his name.

  The problem is that I need a function to retrieve all customers (without any criteria) in a table, and then modify the selected customer, perhaps with the update function. I tried this but, there is no collection on the data control to do so.

  On the last days, in that I wanted a resolution to my problem but the tutorials I've seen, none seems to be exactly what I need. At least none that I could clearly understand it is being implemented.

  Can someone give me a hint or two on how to make this implementation using BC/SOAP?

  Off-topic question: is there an advantage over the use of SOAP on REST, since the REST seems to be faster due to the possibility of using JSON?

  Thank you!

  You can create the custom method in your AppModuleImpl class that presents the signature.

  Something like:

  public List getAllRecords(){
      List result = new ArrayList<>();
  
      ViewObject vo = getYourVO();
      vo.executeQuery();
      while(vo.hasNext()){
          ViewRowImpl row = (ViewRowImpl)vo.next();
          result.add(row);
      }
  
      return result;
  }
  

  And in the AM editor expose this method as part of your web service.

  Then in the other project to create this ws-based Web Service data control, call the getAllRecords() method (as method activity in some task flow, or drop it on the page as a button) and in the end, expand getAllRecords() day in data controls pane and drag and drop 'result' to your af:table page

  Dario

• ADF business components Type map Oracls vs Java

  What advantages and disadvantages of each one card
  
  I thank in advance

  Take a look at this link in the developer's guide:
  http://docs.Oracle.com/CD/E16162_01/Web.1112/e16182/bcintro.htm#sm0062

  The scope of Java to map Oracle and Oracle areas type plan manage numeric data differently. When you create a new application of the type mapping default Java extended for Oracle maps the digital data to the Java.Math.BigDecimal > class that inherits from java.math.Number. The default value of Java.Math.BigDecimal corresponds to the way that web view Fusion application layer, consisting of elements ADF Faces, retains the alignment of digital data (such as numeric values > posted by ADF Faces of fields on a web page). Whereas the areas of the Oracle type that maps digital data from the oracle.jbo.domain.Number class, may not display the data with alignment scheduled by some ADF Faces > components. Apart from this alignment problem, the plan of type Oracle areas remains a valid choice and applications without ADF Faces components will work without problem.

  Thank you
  Nini

• How to reuse business components.

  Hello
  
  I use jdeveloper 11.1.1.3.0.
  
  
  How to create a JAR file and reuse this JAR file in another application.
  
  Kind regards
  Rami

  Rami,

  The chapter of reuse of Application components [url http://download.oracle.com/docs/cd/E17904_01/web.1111/b31974/reusing_components.htm#BABCHHHJ] documentation would be a good read.

  John

• ADF business components: persistent negative IDs in the database

  Hello
  
  We use ADF 11 g with ADF BC as the model layer. All our database tables have a column ID, which is populated by a sequence and never shown to the user. ("IDs techniques".) In British Colombia ADF we have configured our entity objects with the attribute Id set as primary key. The type of the attribute is set to "oracle.jbo.domain.DBSequence". On the tab sequence, we set the name of the sequence in the sequence that corresponds to the table (we have a sequence for each table in the database).
  
  Our problem is the following. If we create a new record in our ADF Faces UI and a business on the database rule generates an error during validation after which correct us the error and resubmit the registration, a record with a negative identification gets in the base. If there was no error in business rule, we get an ID that corresponds to the 'nextval' in the sequence, as expected.
  
  Even though I know that ADF BC uses negative ID in the cache of objects entity for new records, I have no idea how and why these negative ID end up in the database. So far, they have been any problem in the database. But since this is unexpected behavior, I'm not entirely sure that the negative ID will not cause problems in the future. My questions:
  < ul > < li > is this design 'by' behavior or is it a bug? < /li >
  < li > if it is "by design": these are negative IDs guaranteed as being unique? < /li >
  < li > could it be caused by a configuration error in our model project? Where should I start looking for such a mistake? < /li >
  < li > could it be caused by a configuration error in our database? Where should we start to look for such a mistake? < /li >
  < li > would it be a bug in the ADF BC? < /li > < /ul >
  
  Best regards
  Bart kummel

  Bart,

  (1) it's by design
  (2) No.
  (3) No.
  (4) No.
  (5) no

  ;)

  Now for the explanation. Sequence name you set up is just for information purposes only - it is not actually cause ADF fill the value using the sequence. To do this, you must either write database triggers or you can use an extension framework class to have occur in the model layer - in my view, such an extension class is documented in the developer gude (search for DBsequence, I've not worn to hand at the moment). Negative numbers are only temporary placeholders.

  John