ADF business components Type map Oracls vs Java

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• 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

• 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

• 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

• 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

• 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

• Declarative components ADF business components with

  Hi, I created a generic project in jdev

  Created DeclrativeComponent and Application Module defined in the project. My idea is to deploy the declarative component with App module in an ADF library jar.

  Created a test page in this project and was able to read the records in the db using the app module.

  But when I deploy as ADF Lib and when I try to access the db through my added pot this pot is unable to internally find the app module.

  same code is running independently but fails when added to another project in the jar.

  public static DeclarativeComponentAMImpl getAm() {}

  DeclarativeComponentAMImpl am;

  FacesContext CF = null;

  Application app = null;

  ExpressionFactory elFactory = null;

  ELContext elContext = null;

  ValueExpression valueExp = null;

  try {}

  CF = FacesContext.getCurrentInstance ();

  App = FacesContext.getCurrentInstance () .getApplication ();

  elFactory = app.getExpressionFactory ();

  elContext = FacesContext.getCurrentInstance () .getELContext ();

  {valueExp = elFactory.createValueExpression (elContext, "#{data.", Object.class "}") DeclarativeComponentAMDataControl.dataProvider};

  } catch (Exception e) {}

  e.printStackTrace ();

  }

  AM = (DeclarativeComponentAMImpl) valueExp.getValue (elContext);

  am coming as null here when executing it in another project by adding this as jar lib adf

  am back;

  }

  I need assistance to the deployment of adf lib with the two component function declarative with his app module.

  Help, please

  BC4J configuration add inside the Databindings.jpx solved the problem

• ADF business components: how to apply where Clause to the new lines

  Hello world.
  I develop Web Application from merger under Jdeveloper 11.1.1.0.1.
  I read this post http://blogs.oracle.com/jheadstart/rowmatch/
  And I have a question. How should I configure rowmatch if I instance the same viewobject except 2 2 viewobject defined on the same entity.

  If you use view criteria to make your filtering and scoring mode 'filter' of the Victoria Cross to be "Both" (database and in-memory), then the framework will automatically use your filter to filter the lines again without having to write code or use your own rowMatch object.

• ADF business Concepts Ejb components n

  peoples. Sorry to ask this stupid question.
  
  the reason behind this issue.
  
  the most often use adf business components I don't know. but now I'm learning with blogs of experts help. In some blogs, people with Ejb concepts.
  
  But what some I know ejb.
  
  
  
  
  My doubt:
  
  for desiging a transaction based projects. and several people work on my form.
  
  What should I use.
  
  components of business EJB or adf. suits for orientation of the transaction.
  
  Please guide me...

  One is suitable for the semantics of transaction.

  Are you choose probably depends on your background. If you are already well versed in EJB/JPA, then you would follow this approach. If you are already versed in Oracle Forms or ADF BC, then BC ADF would be a logical choice. I will also say that Oracle seems to have invested more effort into the side ADF BC of things, so if you're still undecided, so perhaps this observation can swing you to the side ADF BC.

  John

• 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.

• oracle.jbo.NoDefException: Houston-25002: null type definition oracle.webcenter.search.model.DataControls is not found.

  Hi experts,

  I am trying to deploy a new version of a WC portal application and when the deployment completed successfully I do not see the web page. The error is:

  Error 500 - Internal server error

  oracle.jbo.NoDefException: Houston-25002: null type definition oracle.webcenter.search.model.DataControls is not found.

  at oracle.jbo.mom.DefinitionManager.findDefObjectUsingMetadataObject(DefinitionManager.java:2772)

  at oracle.adf.model.binding.DCDataControlConfigDef.findDefObject(DCDataControlConfigDef.java:32)

  Check the output log, I see:

  [< 29 July 2013 14:47:21 CEST > < error > < HTTP > < BEA-101020 > < [ServletContext@667149283[app: App_name > module: < Module > path: / spec < Path > - version: 2.5 version: V4.0]] Servlet failed with the Exception

  oracle.jbo.NoDefException: Houston-25002: null type definition oracle.webcenter.search.model.DataControls is not found.

  at oracle.jbo.mom.DefinitionManager.findDefObjectUsingMetadataObject(DefinitionManager.java:2772)

  at oracle.adf.model.binding.DCDataControlConfigDef.findDefObject(DCDataControlConfigDef.java:32)

  at oracle.adf.model.binding.DCDataControlDef.findDefObject(DCDataControlDef.java:377)

  to oracle.adf.model.binding.DCDataControlReference. < init > (DCDataControlReference.java:55)

  at oracle.jbo.uicli.mom.JUApplicationDefImpl.loadDataControlUsage(JUApplicationDefImpl.java:1137)

  Truncated. check the log file full stacktrace

  Caused by: oracle.mds.core.MetadataNotFoundException: MDS-00013: no metadata not found for the metadata object ' / oracle/webcenter/search/model/DataControls.dcx '.

  I checked similar errors in the forums and tried the solutions proposed, but without success. I do not understand why the application searches the file DataControls.dcx inside a standard WC research library.

  Any help would be appreciated.

  Hi Dani,

  Finally, I found the problem, it is reported in the Support of Oracle as Doc ID 1503173.1.

  It seems jDeveloper is a bit special when adding directories for the file of Mar. If the entire directory "/ oracle ' is added, the adf - config.xml introduced the following line:

  namespace metadata-store-use = "WebCenterFileMetadataStore" path = "" / oracle "/"

  Therefore, it turns away all requests to/oracle /... file and class of MDS, which causes failures.

  Thus, when the change of the deployment MAR profile be sure to select the subdirectories under/oracle/webcenter/portalapp/one by one.

  Added to that, I had to perform the cleaning process that you suggested to operate too, otherwise I get a different error...

  Final steps are:

  1 cancel the application deployment.
  2 delete the partition MDS.
  3 stop managed server.
  4 delete the content/cache and / TMP to the server managed.
  5. start the managed server.
  6 Exectute Clean all in jDeveloper.
  7. create a new deployment of mar as described in 1503173.1 SR.
  8. EAR file deployment.
  9 deploying the new application with the server managed using Enterprise Manager.

  And it works!

  Thanks for your help!

• 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

• 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.

• Cannot convert * of type class oracle.jbo.uicli.binding.JUFormBinding

  Hello
  Excuse my approach... but I can't... I haven't used this during some time... and I took this to an old APP (working!)
  the error is:
  Cannot convert * of type class oracle.jbo.uicli.binding.JUFormBinding to the oracle.adf.model.BindingContainer interface
  
  and the code is like this

  DCBindingContainer dc = (DCBindingContainer)((fc.getApplication().evaluateExpressionGet(fc,"#{bindings}", BindingContainer.class));

  I watched JUFormBinding and as I see the hierarchy is
  java.lang.Object
  byjava.util.AbstractMap extended
  byoracle.jbo.common.JboAbstractMap extended
  byoracle.adf.model.binding.DCExecutableBinding extended
  byoracle.adf.model.binding.DCBindingContainer extended
  byoracle.jbo.uicli.binding.JUFormBinding extended
  
  so DCBindingContainer is great to JUFormBinding
  
  Thank you
  Pop Florin

  Hello

  and it is easier that it is

  BindingContext bctx = BindingContext.getCurrent();
  BindingContainer bindings = bctx.getCurrentBindingsEntry();
  

  Frank