Quazi extending the Application Module

Similar Questions

• get the Application Module during the invocation of Taskflow delimited

  Hello dear developers,

  I have a filter that maps just before the Faces Servlet and fill some attributes in the HttpSession before it proceeds with the request

  [...]

  If (_clientUser! = null & &! _clientUser.isEmpty ()) {}

  session.setAttribute (CLIENT_USER_URI_PARAM_NAME, _clientUser);

  filterChain.doFilter (servletRequest, servletResponse);

  return;

  }

  [...]

  There are some practical information for which task flow should be addressed within the URI,

  faces/ADF. Task-Flow? ADF.tfId = Task-Flow-Definition-ID & adf.tfDoc=/WEB-INF/task-flow-definition-id.xml

  After I continue the application there is a method call within the bounded workflow that is called before the display (allows to call the current view), making it default business

  [...]

  activity < default > doStuff < / default activity >

  [...]

  The method itself is in a Managed Bean PageFlowScoped, which is added to the task-flow-definition - id.xml

  This is the method that is called before the "MainPage"-view of doStuff ".

  public class {controller

  [...]

  public void doStuff {}

  FacesContext ctx = FacesContext.getCurrentInstance ();

  Card sessionMap = ctx.getExternalContext () .getSessionMap ();

  String clientUser = (String) sessionMap.get (CLIENT_USER_URI_PARAM_NAME);

  AppModImpl am = getApplicationModule();

  DBTransaction transaction = am.getDBTransaction ();

  do more things

  }

  [...]

  }

  public AppModImpl getApplicationModule() {}

  FacesContext fc = FacesContext.getCurrentInstance ();

  Application app = fc.getApplication ();

  ExpressionFactory elFactory = app.getExpressionFactory ();

  ELContext elContext = fc.getELContext ();

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

  AppModImpl m = valueExp.getValue (elContext) (AppModImpl);

  am back;

  }

  Everything works well so far. But if I try to get the Module of the Application. There is not.

  This app normally isn't any what DataControl, because is just a root application which different components of blocks that have been added by ADFLibrarys, but I added a DataControl to the DataBindings.cpx and an iterator for the MainPagePageDef (just to understand a DataControl in links) but still no result.

  Do you have any tips for me how I can access the application Module? FacesServlet should have been already created the necessary FacesContext managed Bean is called at the moment or it only creates a new FacesContext time a real (jspx/jsf) Page loads?

  Yours,

  Matthias Schnell

  I got a response:

  Here is the block message that has helped me to understand.

  Andrejus Baranovskis Blog: How to fix error of initialization of the control Data with the ADF libraries

• Important conceptual issue on the Application Module, maximum Pool size

  Hi all
  
  We have a critical issue for the default settings of the Application Module (taking a data source DB connections)
  
  I know that on the Web, it is generally suggested that each request must end with a commit or rollback when executing blocks PL/SQL 'directly' on the DB without the intervention of service framework ViewObject/BC/entity.
  
  Now, for some reason, we started to develop our applications with the thought that each Web Session référenceriez exactly a DB session (open any instance taken AM pool) during the duration of the session, so that the changes made by each session Web DB session would never interfere with the changes made by 'other' Web Sessions to 'other' DB sessions.
  
  In other words, because of this persuasion, we implemented often sort of "transactions" that open and close (with commit or rollback) every DB session not in and after a single HTTP request, but during several HTTP requests.
  
  As think of a concrete example of this scenario:
  
  1. the user presses the button "insert." An HTTP request is triggered. The action listener is running and ends with the insertion of rows in a table via a block PL SQL (not via the ViewObjects API).
  2. no commit or rollback after the PL/SQL block above is still done.
  3. Finally, the user presses a button of 'Validation' or 'Dismantling', taken from the appropriate call to the AM methos.
  
  These three applications are what I called the "transaction".
  
  Literature, it is clear that there is no guarantee that the couple HAVE istance + DB session is the same in all applications.
  This means that, during step 2, it is possible that another user can do reference the same 'pending' AM / DbSession for its needs and 'fly' sort the work done via PL/SQL after step 1. (This happens because sessions taken poolside are always cancelled by default).
  
  Now my question is:
  Suppose that we have defined the parameter 'Maximum Pool size' to the very many (always less than the maximum number of concurrent users):
  Is there a guarantee that all applications will be isolated in this case?
  
  I hope that the problem is clear.
  Let me know if you want more details.

  Hello

  No, I don't think that there is a specific guarantee - at least according to the documentation. You could open an SR with support for asking the question and ask them to refer the matter to the development. The way to ensure things would be to disable AM pooling, which, according to the literature, is not a configuration supported for production.

  I know it's probably not what you want to hear, but if you hired me to come and consult with you, my recommendation would be to redefine the architecture you have. In the end, you'll be happier with the results. If you have an API of PL/SQL, you use, you could write an extension of the generic framework for your EOs that could take advantage of the API of PL/SQL instead of SQL calls (there was little prior work on this and N of Frank, recently said that he would become an EMG effort, but not until next year). If you did, you can further increase your PL/SQL, but without violating the rule "don't let state pending in the session DB".

  John

• How to send the value of the variable to the application module to servlet?

  HII...
  How can you send a value to the application module to the servlet or jsp page when we call the function from the application module...
  as the return type of function module of the application must be zero when it to add in the client interface...

  Your Java Bean must be serializable. A quote from what is displayed when you click on 'Help' in the ' Add method on the client interface screen:

  A list of the generated methods available for export (only the public methods with parameters and return types that are primitive or implement that the Serializable interface will appear in the list).

  John

• Cannot find the Application Module

  Hello experts!
  
  I extended a controller to validate a user input (controller: oracle.apps.ar.cusstd.contact.webui.ArAcctContactCreateCO).
  I clicked on the about Page and in the PageDefinition the pageLayout controller = ArAcctContactCreateCO and ArContactsAM = application module.
  When I scroll I find attribute I'm posting called PersonLastName. This attribute is under
  controller: HzPuiQuickCreatePersonSpecialCO
  AM: HzPuiQuickCreatePersonAM
  VO: HzPuiPerQuickCreateProfileVO
  Display attribute: PersonLastName
  
  
  It's my extended controller:
  
  package xxx.oracle.apps.ar.cusstd.contact.webui;
  Import oracle.apps.fnd.framework.webui.OAPageContext;
  Import oracle.apps.fnd.framework.webui.beans.OAWebBean;
  Import oracle.apps.ar.cusstd.contact.webui.ArAcctContactCreateCO;
  Import oracle.apps.fnd.framework.OAApplicationModule;
  Import oracle.apps.fnd.framework.OAException;
  Import oracle.apps.fnd.framework.OAViewObject;
  Import oracle.jbo.Row;
  
  
  SerializableAttribute public class XXF5ArAcctContactCreateCO extends ArAcctContactCreateCO
  {
  ' Public Sub processFormRequest (OAPageContext oapagecontext, OAWebBean oawebbean)
  {System.out.println ("Running LOW");
  OAApplicationModule oaapplicationmodule = (oawebbean) oapagecontext.getApplicationModule;
  System.out.println ("AM:" + oaapplicationmodule);
  OAApplicationModule PersonAM = (OAApplicationModule) oaapplicationmodule.findApplicationModule ("HzPuiQuickCreatePersonAM");
  System.out.println ("PersonAM:" + PersonAM);
  }
  }
  
  For some reason, the computer cannot find HzPuiQuickCreatePersonAM application module. I get the following results:
  PFR running
  AM: oracle.apps.ar.cusstd.contact.server.ArContactsAMImpl@5b04ae
  PersonAM: null
  
  
  I also replaced OAApplicationModule oaapplicationmodule = oapagecontext.getApplicationModule (oawebbean) with OAApplicationModule oaapplicationmodule = (OAApplicationModule) oapagecontext.getRootApplicationModule () and I got the same results.
  
  Does anyone know why it does not find HzPuiQuickCreatePersonAM application module? Any help is appreciated.

  Hello

  as HzPuiQuickCreatePersonAM is under HzPuiCompositionAM

  (-a) HzPuiCompositionAM
  -I) HzPuiQuickCreatePersonAM

  If you start with
  OAApplicationModule apprAM = (OAApplicationModule) rootAM.findApplicationModule ("HzPuiCompositionAM");

  Kali has provided a code too much for AMs nested.

  Thank you
  Pratap

• get the return value of a method of the application module in the workflow

  Hello

  I use jdeveloper 11.1.1.7.0

  I defined a method (return type is useful java card) in the Module of the Application and add this method to the client interface.

  also I have a workflow and in this TF firstly I should execute this method and put the return value for the pageFlowScope parameter. I know that to use this method as a methodCall and set it as an activity by default, but I don't know how to get the return value before entering the jsff page and set the pageFlowScope parameter.

  Habib

  Concerning

  When you add the activity to the way to deal, there are 'Return value' property that you can set to #{pageFlowScope.yourVariable}

  Dario

• How to get the name of the application Module data source

  Hi all

  I need to get the name of source data or DB connection on which my Application module is plugged.

  I tried to get the value below

  System.out.println ("jdbc URL:" + getTransaction () .getConnectionMetadata () .getJdbcURL ());

  
  

  But it is null for the data source (in the case of the jdbc URL gives me value)

  
  

  Please help me.

  Thanks in advance...!

  P.S: Jdev v11.1.1.6

  Thanks to all those who want to help.

  ApplicationModule API (ApplicationModule (Oracle Fusion Middleware Java QAnywhere for Oracle ADF Model))

  I thought that this

  Hashtable hashtable is getSession () .getEnvironment ();.

  System.out.println ("JDBC data source value is:" + hashtable.get ("JDBCDataSource"));

• Cannot run the application module in a project of (Model) generic in BPM application

  I use jDeveloper 11.1.1.6 and I want to add a generic or a model for a BPM application project, in order to develop the custom user interface.
  but when I created an application module with associated and then java class do a right click on it to run, I saw the following error message:
  
  (oracle.jbo.ConfigException) Houston-33001: tester.xcfg Configuration file is not found in the classpath.
  
  more when I use a merger Web application instead of BPM application, with the projects of model and view controller, there is no problem and I am able to run the module of the application.
  
  Thank you very much for your contribution.

  Comment the mds-config section in your adf - config.xml temporarily and try. It will work

• Access to the instance of the Application Module to the users of servlet

  I have a servlet that is required to access the current users request module instance.
  
  I added the servlet to filter "adfBindings" to access links in the servlet.
  It works very well. I can access all the links in the servlet.
  The security context of the user is also available.
  But the servlet always creates a new instance of request for a user module.
  I tried several ways to access the module of the application.
  
  I need the servlet to access the actual instance.
  I tried to also pass the State "_adf.ctrl" for the servlet, but without success.
  
  Is there a way to access the current instance of request module in a servlet?
  
  Thanks for your help!
  
  Richard
  
  I use JDeveloper 11.1.1.3.0 (JDEVADF_11.1.1.3.PS2_GENERIC_100408.2356.5660)

  You can do it. The idea/solution is Jan Vervecken and works as far as I tested it.
  You need build a URL pointing to your servlet with a parameter to transfer the current DataControlFrame. In the servlet to read the parameter and uses it to obtain the current DataControlFrame.

  You can find the thread here what createRootApplicationModule() must be called from a servlet?
  with a sample application and the screen cast to show how it works

  Timo

• BlackBerry smartphones [8520] is possible to extend the applications memory?

  I think that my memory of BB 8520 curve for applications is too limited, it is possible to expand to larger storage? or do I have to delete an app to download another? =(

  Hello

  AppMemory size is fixed at the time of manufacture. You can not set. You can adjust, it's what you use, starting with the optional components of your operating system (for example, languages you'll never use). A recharge of OS, where you carefully choose your optional components, followed by choosing the applications that you install is the best way to find your optimal configuration.

  Good luck!

• How to get the Application Module - ADFC-10001

  Hello world

  I use jdev 11.1.1.7 version. In my project, I have a form that is rendered in the portal by clicking on a link. When I click on the link, it opens the form for the first time, if I close the form and try to open it again, it works but if I close and try to open it for the third time, it does not work and it gives an error associated with rendering after debugging the data control. , I realized that somehow, it cannot find the data for the third time control.

  If I use the code to get the below request form

  BindingContainer DCBindingContainer = (DCBindingContainer) BindingContext.getCurrent () .getCurrentBindingsEntry ();

  DCDataControl cDataControl = bindingContainer.findDataControl("ComplianceModuleDataControl");

  or if I use iterator

  BindingContainer links = getBindings();

  DCIteratorBinding dciter = (DCIteratorBinding) bindings.get("CriminalHistoryVO1Iterator");

  RowSetIterator rsi = dciter.getRowSetIterator ();

  It gives an error like this

  javax.faces.FacesException: javax.faces.FacesException: oracle.adf.controller.ControllerException: ADFC-10001: failed to instantiate the class "com.metro.PreQualComplianceBean".

  at com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:415)

  at org.apache.myfaces.trinidad.context.ExternalContextDecorator.dispatch(ExternalContextDecorator.java:44)

  Caused by: javax.faces.FacesException: javax.faces.FacesException: oracle.adf.controller.ControllerException: ADFC-10001: failed to instantiate the class "com.metro.PreQualComplianceBean".

  at com.sun.faces.application.ApplicationImpl.createComponent(ApplicationImpl.java:261)

  at javax.faces.webapp.UIComponentELTag.createComponent(UIComponentELTag.java:222)

  at javax.faces.webapp.UIComponentClassicTagBase.createChild(UIComponentClassicTagBase.java:513)

  at javax.faces.webapp.UIComponentClassicTagBase.findComponent(UIComponentClassicTagBase.java:782)

  at javax.faces.webapp.UIComponentClassicTagBase.doStartTag(UIComponentClassicTagBase.java:1354)

  Somehow the iterator returns null for third click.

  In summary, in my third click, I can't make the data control, which may cause this problem. This is a really urgent situation. I'll appreciate any help.

  Thank you

  Melis,

  Hi user

  the first thing you should not write these methods to the constructor, instead create method to expose layer model through client and use in taskFlow as default activity

  It is not recommended to use the code in the constructor of beans as if there is that no bean exception will not be instantiated

  Why are you applicationModule at the bean? no need for this just write your code in the AMImpl class and use through the link layer

  It's the best coding practice, you have to try

  Thank you

• How to execute the SQL statement in the Application Module

  Hi people
  I´d would like to know how I can execute a SQL statement like "remove user" in the Module to request... prepareSession method...
  I m using Jdev 10 with ADF Faces
  Thank you

  This is possible, but you should think twice about it.
  If this can be done with an EO/VO do in this way.
  If you can't do it with an EO/VO you can yourself the DB operation (ApplicationModule.getDBTransaction ()) and use a call of createStatement (...) do what you want.

  Timo

• Can I get the lock event of user interface for a class that extends the Application class?

  
  

  Here's an article in the knowledge base on the subject:

  http://supportforums.BlackBerry.com/T5/Java-development/alert-a-BlackBerry-Smartphone-user-from-a-BA...

• How to pass the value calculated with the method of the Application Module?

  I am a newbie to ADF. IThink I'm missing something very basic:
  
  
  
  In JDeveloper 10.1.3.3 ADF, I'm trying to pass the session ID to a method in my App Mod, but the method receives a null value. I think I have a session ID getting too late in the process, but don't know where else to get it.
  
  
  
  Here are the details:
  
  
  
  I'm passing 3 argument to a method called ProcessReport:
  
  
  
  public String ProcessReport (Number reportNumber, Double caratWeight, String sessionID)
  
  
  
  In my PageDef I have:
  
  
  
  < p >
  & lt; executables & gt;
  
  & lt; variableIterator id = 'variables' & gt;
  
  & lt; Type = "oracle.jbo.domain.Number" variable
  
  Name = "ProcessReport_reportNumber" IsQueriable = "false" / & gt;
  
  & lt; Type = "variable java.lang.Double" name = "ProcessReport_caratWeight" "
  
  IsQueriable = "false" / & gt;
  
  & lt; Type = "java.lang.String variable" name = "ProcessReport_sessionID" "
  
  IsQueriable = "false" / & gt;
  
  & lt; / variableIterator & gt;
  
  & lt; / executables & gt;
  
  
  
  & lt; links & gt;
  < /p >
  < p >
  & lt; methodAction id = "ProcessReport" MethodName = "ProcessReport."
  
  RequiresUpdateModel = "true" Action = "999".
  
  IsViewObjectMethod = 'false' DataControl = "RC2DataControl."
  
  InstanceName = "RC2DataControl.dataProvider"
  
  ReturnName = "RC2DataControl.methodResults.RC2DataControl_dataProvider_ProcessReport_result" & gt;
  
  & lt; NamedData NDName = "reportNumber" NDType = "oracle.jbo.domain.Number"
  
  NDValue = "${bindings." ProcessReport_reportNumber} "/ & gt;
  
  & lt; NamedData NDName = "caratWeight" NDType = "java.lang.Double"
  
  NDValue = "${bindings." ProcessReport_caratWeight} "/ & gt;
  
  & lt; NamedData NDName = "sessionID" NDType = "java.lang.String"
  
  NDValue = "${bindings." ProcessReport_sessionID} "/ & gt;
  
  & lt; / methodAction & gt;
  
  
  
  & lt; attributeValues id = "reportNumber' IterBinding = 'variables' & gt;
  
  & lt; AttrNames & gt;
  
  & lt; Item Value = "ProcessReport_reportNumber" / & gt;
  
  & lt; / AttrNames & gt;
  
  & lt; / attributeValues & gt;
  
  & lt; attributeValues id = 'caratWeight' IterBinding = 'variables' & gt;
  
  & lt; AttrNames & gt;
  
  & lt; Item Value = "ProcessReport_caratWeight" / & gt;
  
  & lt; / AttrNames & gt;
  
  & lt; / attributeValues & gt;
  
  & lt; attributeValues id = 'sessionID' IterBinding = 'variables' & gt;
  
  & lt; AttrNames & gt;
  
  & lt; Item Value = "ProcessReport_sessionID" / & gt;
  
  & lt; / AttrNames & gt;
  
  & lt; / attributeValues & gt;
  
  
  
  & lt; / links & gt;
  < /p >
  
  
  
  
  On my page, I added an outputText control called sessionID to contain the session ID.
  
  In my command button submit the page I have and the action to invoke a method in my grain of support:
  
  
  
  The code is:
  
  
  
  FacesContext ctx = FacesContext.getCurrentInstance ();
  
  ExternalContext ectx = ctx.getExternalContext ();
  
  HttpSession mySession = ectx.getSession (false) (HttpSession);
  
  String theSessionID = mySession.getId ();
  
  
  
  sessionID.setValue (theSessoinID) / / I hope she fills the outputText control and is added to the binding must be passed to the ProcessReport method
  
  
  
  BindingContainer links = getBindings();
  
  OperationBinding operationBinding = bindings.getOperationBinding("ProcessReport");
  
  Object result = operationBinding.execute ();
  
  If (! operationBinding.getErrors () .isEmpty ()) {}
  
  Returns a null value.
  
  }
  
  
  
  String resultStr = (String) result;
  
  Return resultStr;
  
  
  
  No chance! I think I should get the sesson ID earlier, during the loading of the page, but I don't know where to put the code.
  
  
  
  Any suggestion would be appreciated.
  
  
  
  John

  Hello

  Here's what I'd do

  1. create a bean managed as follows

  import javax.faces.context.ExternalContext;
  import javax.faces.context.FacesContext;
  
  import javax.servlet.http.HttpSession;
  
  public class HTTPSessionAccessBean {
  
      public HTTPSessionAccessBean() {
      }
  
      public void setHttpSessionId(String httpSessionId) {
      }
  
      public String getHttpSessionId() {
  
          FacesContext ctx = FacesContext.getCurrentInstance();
          ExternalContext ectx = ctx.getExternalContext();
          HttpSession mySession = (HttpSession) ectx.getSession(false);
          String sessionId = mySession.getId();
          return sessionId;
      }
  }
  

  2. in the ApplicationModule Impl class to create the following method and expose it as a clientInterface

      public void setSession(String sessionId){
         ((SessionImpl)this.getSession()).getEnvironment().put("http_session",sessionId);
      }
  

  (3) in the file for pageDef create method as binding

  (4) in the same file for pageDef create an invokeAction

  The session ID is now accessible from the ApplicationModule as

          Hashtable env = ((SessionImpl)this.getSession()).getEnvironment();
          String sessonId =(String) env.get("session);
  
          }
  

  This keeps the layer of model/view separation

  Frank

• Embark on an application module is also committed the other

  Jdev 11.1.1.4
  
  I have a fusion ADF application where I defined two data controls.
  
  One is called AppModuleDatacontrol and the other AppModuleWSDataControl.
  
  I do this in order to devote DML made on a data control independently of the other.
  
  The problem is that when one do something like:
  
  AppModuleWSImpl am = (AppModuleWSImpl) Util.getApplicationModule ("AppModuleWSDataControl");
  am.getTransaction () .commit ();
  
  Errors on VO de AppModuleDataControl are triggered. They shouldn't be triggered!
  
  I've activated ADF newspapers and just after the execution of
  
  AppModuleWSImpl am = (AppModuleWSImpl) Util.getApplicationModule ("AppModuleWSDataControl");
  
  and before running the validation I get:
  
  < A > < findDataControl > BindingContext [4147] INFO: no refreshRegion, jumping cpx codebase research AppModuleWSDataControl
  < BindingContext > < set > [4148] BindingContext.put (AppModuleWSDataControl@edu_esade_view_DataBindings_cpx, oracle.jbo.uicli.binding.JUApplication)
  < PropertyManager > < loadProperty > [4149] WARNING: property null jbo.maxpoolcookieageset
  The < PropertyManager > < loadProperty > jump [4150] property void null jbo.maxpoolcookieage
  < BindingContext > < set > [4151] BindingContext.put (AppModuleWSDataControl@edu_esade_view_DataBindings_cpx, oracle.jbo.uicli.binding.JUApplication)
  < BindingContext > < set > [4152] BindingContext.put (AppModuleWSDataControl@edu_esade_view_DataBindings_cpx, oracle.jbo.uicli.binding.JUApplication)
  < DebugDiagnostic > < print > [4153] DBG: DataControl: looking at: _adf_dc_user_params_key_
  < DebugDiagnostic > < print > [4154] DBG: DataControl: looking at: _adf_dc_user_params_key_
  < ADFLogger > < start > create the Application Module nested
  
  
  I don't know if "Create nested Module of Application" is important, but I don't want this AppModule nesting on the other. I want them to be completely independent in order to achieve independence, the actions of validation.
  
  Any help?

  "1.Defining all BTF as 'No operation controller'" I can assume that the two AppModule will still work with different transactions ".

  As long as they are defined as separate root AMs and you used the option of they will work with db connections, so different transactions too.

  "and a transaction in an AppModule persist hollow pages.

  In the context of a BTF Yes. In the scope of BTF chained which depends on the BTF data control box option. If you set which isolated, each instance of a BTF will create a new instance of the AOS in question (and new connections/transactions with the database). If you use shared, 1 instance of the AM will be shared (1 connection/transaction).

  ' 2. what impact this can have by reusing BTF? I have a page jsf reusing the same workflow in the two regions. The taskflow performs initialization. The unwanted parts will interact with the other? »

  It depends on the option given extended control as specified above. If you want them to be independent, use scope of control options data isolated on the BTF.

  Consider reading the book of ADF task flows Transaction Fundamentals on this Web site for more information: http://www.oracle.com/technetwork/developer-tools/adf/learnmore/adfarchitect-1639592.html

  CM.