Access a managed bean of a region on a page

Similar Questions

• How to access the managed bean taskflow action result?

  Hi all
  I have a requirement where I have two areas of text (username and password) and a SignIn button. When the user clicks login, my action managed bean will run the view object and get the password for this user name. And that's why it will compare the password presented by the user and the password came from the view object. I a taskflow, in which I have two points of view, we're signIn page and other is the home page, and the result of the action is successful.
  The managed bean method here signIn Page for SignIn button.
  
  public String execute() {}
  String EnteredPassword = PassEncrypt();
  ApplicationModule am = ADFUtils.getApplicationModuleForDataControl ("AppModuleDataControl");
  ViewObject myView1 = am.findViewObject("LogindetailsView1");
  System.out.println ("Usrname is" + this.) (Username);
  myView1.setNamedWhereClauseParam ("v_Username", this.) (Username);
  myView1.executeQuery ();
  DCBindingContainer links =
  (DCBindingContainer) BindingContext.getCurrent () .getCurrentBindingsEntry ();
  DCIteratorBinding empIter = bindings.findIteratorBinding("LogindetailsView1Iterator");
  String DBPassword = empIter.getCurrentRow ().getAttribute("Password").toString ();
  
  System.out.println ("password is" + DBPassword);
  
  {if (EnteredPassword.Equals (dbpassword))}
  
  Here, I need to call the result of success, which will allow the user to get access to the display of the home page in taskflow.
  
  }
  else {}
  FacesMessage fm =
  new FacesMessage (FacesMessage.SEVERITY_ERROR, "Please check your name of user and password",
  "Please check your name of user and password");
  FacesContext.getCurrentInstance () .addMessage (null, fm);
  }
  Returns a null value.
  }
  
  If this can be done using the method call in taskflow then how could use it in my script?
  Please suggest.
  Thank you.

  you have a rule of navigation between these two pages
  If so, simply return the navigation rule name

  if(EnteredPassword.equals(DBPassword)) {
  return "success";
  }
  

• How to use Groovy to the attributes of access on managed Beans?

  What is the best way to define view object Bind variable values that are not exposed by the entity object? More specifically, I have an entity with a values list object attached object. I need to set a value on the a Bind Variable views LOV ", which is not a value on line' oppose?

  You should not access properties of interface layer user directly from your model layer - because it would break the independence of the model using a specific user interface layer.
  Instead, expose a service method on the VO or AM that accepts a parameter and sets the binding variable - and then call this method in your user interface.
  Something like this:
  http://jobinesh.blogspot.com/2011/03/initializing-bind-variables-in-query.html

• scope pageFlow Managed Bean cannot be instantiated when the page is loaded.

  12.1.3 jdev

  When I set the java class as session or endossage extended bean in my BTF, my page OK.

  But if I set the same class as pageFlow brought in my BTF, I got error:

  javax.el.PropertyNotFoundException: //opt/jdevhome/system12.1.3.0.41.140508.1628/o.j2ee/drs/ProgrammaticLOV/ViewControllerWebApp.war/glog/fusion/flow/test/ShipmentLOV.jsf @10,44 value="#{shipmentLOV.shipmentXid}": Target Unreachable, identifier 'shipmentLOV' resolved to null 

  It's very strange for me. I set autresclasses pageFlow brought in before BTF. They all work.

  Any idea what can cause this error?

  Thank you.

  This works for scope request and the scope of session because these scopes are scopes of normal jsf that you don't have to precede the name of scope (and not precede with their scope names). JSF numbers what scope are that beans in and instantiated automatically for you. Scopes added by the ADF, as pageFlowScope aren't standard scopes and it must be prefixed by the name of scope. In addition, they are different instantiated of broad beans normal.

  Check again that the bean is set that once in right in the workflow definition file, the bean is up to. Don't do anything in the constructor of this bean so-called probably not at the right time.

  Timo

• Automatically expose the interface components existing user using a managed Bean

  "I try to use him"automatically expose UI components using an existing managed Bean"in the implementation of the Page" section when creating of my jspx page but cannot find out how to get the enabled radio button to use.

  See this article on the use of Backing Beans with JDeveloper:
  http://blogs.Oracle.com/Shay/2010/03/working_with_backing_beans_in.html

  To pass information between pages, you might want to watch using the pageFlowScope and a component of setPropertyListener:
  http://download.Oracle.com/docs/CD/E14571_01/Web.1111/b31973/af_lifecycle.htm#BABIHDAA

• ADF - components of the access to the contents of a managed bean in a HA environment ViewScope.

  Hi all

  I have a question, I am a beginner with ADF and learn a lot through these forums and Google

  Using Jdeveloper 11.1.1.7

  is the question I have, I have a cluster/HA environment (2 knots) and move my application to use HA.

  I changed the ADF - config.xml to add the following line:

  " < adf-controller-config xmlns =" http://xmlns.Oracle.com/ADF/controller/config "> "

  < adf-scope-ha-support > true < / adf-scope-ha-support >

  < / adf-controller-config >

  I currently have a managed bean (ViewScope) and it has all my actionListeners/valueChange etc... etc... It also has my UIComponent links and I have also several methods that define specific attributes on these components and then do:

  AdfFacesContext.getCurrentInstance () .addPartialTarget ("ComponentRefHere");

  I am aware that I have to put my beans managed to implement Serializable I also understand that the UI components are not serializable.

  I use the ComponentReference method that is to say:

      private ComponentReference<RichPanelBox> iframePB;
  
      public void setIframePB(RichPanelBox component) {
          iframePB = ComponentReference.newUIComponentReference(component);
      }
    
      public RichPanelBox getIframePB() {
          return uiComponentBean.getIframePB();
      }
  

  is the question I have, I can leave it like that? or will I move them to a different managed bean?

  If so, how should I put the bean, it must also implement serializable, and how do I access them from my managed bean viewScope.

  
  Thank you

  You don't have to. Https://docs.oracle.com/javaee/6/tutorial/doc/gjbbk.html documentation

  The beans that use the scope of the conversation, application, or session must be serializable, but beans that use the scope of the request need not be serializable.

  I personally always add the serializable interface as the bean has never should be selected for serialization, it should not control. It is easier to tell everyone to add it anyway. In this way, you can use the same class in all scopes.

  Timo

• Problem with binding components of fragments of page in bean managed when rendered as region

  I detected a problem when I bind a component in a managed bean for a page fragment which is a view of a TaskFlow exposed to JSF as a region.

  
  

  This problem happened when I exhibited same TaskFlow as region of two or more instances in the same Joint Strike Fighter. The component that is only returned in the latter region.

  
  

  JDeveloper 12 c (12.1.2.0) ADF12c.

  This is the code:

  The page fragment:

  <?xml version='1.0' encoding='UTF-8'?>
  <ui:composition xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:af="http://xmlns.oracle.com/adf/faces/rich">
    <af:panelGroupLayout id="pgl1">
      <af:inputText label="Label 1" id="it1" binding="#{bindingComponentBean.inputText}"/>
      <af:button text="button 1" id="b1"/>
    </af:panelGroupLayout>
  </ui:composition>
  

  Bean managed (within the scope of the request)

  package com.edisa.test.errors.view.backing;
  
  
  import oracle.adf.view.rich.component.rich.input.RichInputText;
  
  
  public class BindingComponentBean {
      private RichInputText inputText;
  
  
      public BindingComponentBean() {
      }
  
  
      public void setInputText(RichInputText inputText) {
          this.inputText = inputText;
      }
  
  
      public RichInputText getInputText() {
          return inputText;
      }
  }
  

  TaskFlow

  <?xml version="1.0" encoding="UTF-8" ?>
  <adfc-config xmlns="http://xmlns.oracle.com/adf/controller" version="1.2">
    <task-flow-definition id="TestTaskFlow">
      <default-activity>test_fragment</default-activity>
      <managed-bean id="__1">
        <managed-bean-name>bindingComponentBean</managed-bean-name>
        <managed-bean-class>com.edisa.test.errors.view.backing.BindingComponentBean</managed-bean-class>
        <managed-bean-scope>request</managed-bean-scope>
      </managed-bean>
      <view id="test_fragment">
        <page>/fragments/test_fragment.jsff</page>
      </view>
      <use-page-fragments/>
    </task-flow-definition>
  </adfc-config>
  

  JSF page

  <?xml version='1.0' encoding='UTF-8'?>
  <!DOCTYPE html>
  <f:view xmlns:f="http://java.sun.com/jsf/core" xmlns:af="http://xmlns.oracle.com/adf/faces/rich">
      <af:document title="index.jsf" id="d1">
          <af:form id="f1">
              <af:pageTemplate viewId="/oracle/templates/threeColumnTemplate.jspx" id="pt1">
                  <f:facet name="center">
                      <af:panelGridLayout id="pgl1" inlineStyle="border: 1px solid #eee;">
                          <af:gridRow marginTop="5px" height="auto" marginBottom="5px" id="gr1">
                              <af:gridCell marginStart="5px" width="50%" id="gc1" inlineStyle="border: 1px solid #eee;"
                                           halign="stretch">
                                  <af:panelBox text="Region 1" id="pb1">
                                      <f:facet name="toolbar"/>
                                      <af:region value="#{bindings.TestTaskFlow2.regionModel}" id="r2"/>
                                  </af:panelBox>
                              </af:gridCell>
                              <af:gridCell marginStart="5px" width="50%" marginEnd="5px" id="gc2"
                                           inlineStyle="border: 1px solid #eee;" halign="stretch">
                                  <af:panelBox text="Region 2" id="pb2">
                                      <f:facet name="toolbar"/>
                                      <af:region value="#{bindings.TestTaskFlow1.regionModel}" id="r1"/>
                                  </af:panelBox>
                              </af:gridCell>
                          </af:gridRow>
                      </af:panelGridLayout>
                  </f:facet>
                  <f:facet name="header"/>
                  <f:facet name="end"/>
                  <f:facet name="start"/>
                  <f:facet name="branding"/>
                  <f:facet name="copyright"/>
                  <f:facet name="status"/>
              </af:pageTemplate>
          </af:form>
      </af:document>
  </f:view>
  

  Component to bind to the support extended to bean bean would be.

  In fact, it is solely to support the scope of the bean - to distinguish two or more instances of the page fragment component.

  It has the same duration of life as the requestScope, but for different instances of the components parts / declarative, you have separate instances of scope backingBean controlled beans.

  http://adfpractice-Fedor.blogspot.com/2012/03/managed-bean-scopes-for-page-fragments.html

• Access EJB session bean in JSF managed bean

  Components of the project: Weblogic 11 G + 12 c, 12 c EJB3 JPA 2 Jdeveloper-ADF

  I need to access EJB session bean in JSF managed bean and some methods of execution by program

  Work method and return EJB below
  Is this fair? Another way

  public static Object getEjbForDataControl (String name) {}
  BindingContainer DCBindingContainer = (DCBindingContainer) BindingContext.getCurrent () .getCurrentBindingsEntry ();
  DCDataControl cDataControl = bindingContainer.findDataControl (name);
  Return cDataControl.getDataProvider ();
  }

  Thank you

  Mohsen

  Hi Isabelle,.

  I assumed that his Session EJB bean has not been exposed as a data control (my bad, didn't read any of the discussion).

  Antonis

• How to access all the lines one by one, a table ADF via managed bean

  Hi Experts,
  
  Hi I'm new in the ADF.
  
  Could someone help me to fix the case below?
  
  Scenario - I have a table called Test_T1 that have 4 columns C1, C2, C3, C4. Creation of EO, VO and AM for test_t1.
  When created in pages ADF, I selected the option "automatically exposed components UI in new managed bean" (mynewmanagedbean.java).
  Control data drag and drop Test_T1 table in the page as a table of the ADF.
  Set the properties is read-only C1, C2, C3 and C4 is an input text.
  Add after the table and attathed button action on the mynewmanagedbean.java bean managed.
  At the time of the Test_T1 page filled with a few No.. lines (such as 9).
  How can I access all the lines above through the key without selection of these.
  In fact, I want to print all the rows of the table in the log at the time to press the button.
  
  Thanks in advance.

  Sorry for the delay, the code was copied from another test case. You can work directly with the line...
  I created a new test case based on the departments of the HR schema table:

  import oracle.adf.model.BindingContext;
  import oracle.adf.model.bean.DCDataRow;
  import oracle.adf.model.binding.DCBindingContainer;
  import oracle.adf.model.binding.DCIteratorBinding;
  import oracle.adf.share.logging.ADFLogger;
  
  import oracle.jbo.Row;
  
  public class DumpRows
  {
      private static ADFLogger _logger = ADFLogger.createADFLogger(DumpRows.class);
      public DumpRows()
      {
      }
  
      public String cb3_action()
      {
          DCBindingContainer bindings =
          (DCBindingContainer)BindingContext.getCurrent().getCurrentBindingsEntry();
          DCIteratorBinding dcIteratorBindings =
          bindings.findIteratorBinding("DepartmentsView1Iterator");
  
          // Get all the rows of a iterator
          Row[] rows = dcIteratorBindings.getAllRowsInRange();
          for (Row row : rows) {
              String depname = (String)row.getAttribute("DepartmentName");
              _logger.info(depname);
          }
          return null;
      }
  }
  

  As you do not have the class of line interface build you must get the attributes in their names. Be careful here, because any misspelling is cought only when you run the application.

  Timo

• Managed Bean executable access

  Hi Experts,
  
  I want to access a view (from the executable section) in a managed bean criteria. No idea how to do this?
  
  thnks

  chk this
  http://vtkrishn.WordPress.com/2010/07/21/easiest-way-to-get-the-current-binding-from-the-bean/

  For connection of research use it as
  Fc = FacesCtrlSearchBinding
  (FacesCtrlSearchBinding) bindings.findExecutableBinding ("PeriodQuery");
  or
  Fc = FacesCtrlSearchBinding
  (FacesCtrlSearchBinding) bindings.get ("PeriodQuery");

• Value of f: attribute to access in my managed bean

  Dear all,
  
  I have the diffulty why this code returns a null value.
  
  In my case, I have a component of iterator and I put an attribute by each iteration

  <af:iterator value="#{bindings.employee.collectionModel}" var="row">
       <f:attribute name="empID" value="#{row.empID}"/>
       <af:outputText 
                      value="#{pageFlowScope.myBean.customValue}" id="ot1"/>
  </af:iterator>

  Now, in my managed bean I wanted to access the attribute I put during each iteration so that
  I could format the value of the output text.
  
  But I get null values instead.

  public class MyBean{
       public String getCustomValue(){
            String empID = (String)this.evaluateEL("#{empID}");
            //problem empID is always null????
       }
       private Object evaluateEL(String el) {
            FacesContext facesContext = FacesContext.getCurrentInstance();
            ELContext elContext = facesContext.getELContext();
            ExpressionFactory expressionFactory =
            facesContext.getApplication().getExpressionFactory();
            ValueExpression exp =
            expressionFactory.createValueExpression(elContext, el,
            Object.class);
            return exp.getValue(elContext);
       }
  }

  Any tips?

  But, at the end of the iteration we do not do anything so no need to worry about its value and infact scope of line is not valid in the iterator.
  The getCustomValue method is called for each iteration, so holds the current line instance.

  Jean Lou

• Download the managed bean resource file

  Hello
  
  Please help me, how can I access and get the values of the resource file in a managed bean?
  Thanks in advance
  
  Kind regards
  
  Joseph Joby

  Hello
  Check

  http://technology.AMIS.nl/Blog/4076/context-sensitive-resource-bundle-entries-in-JavaServer-Faces-applications-going-beyond-plain-language-region-variant-locales

• Error by calling the method on Bean managed from an other managed Bean

  Hello
  
  (Jdev 11.1.1.2.0)
  
  Help please:
  
  I have a managed bean (page scope of stream) that is used by my homepage for navigation of flow dynamic region:
  
  * / public class RegionNavigationBean implements Serializable {* +}
  private String dynamicTaskFlowId = "/ WEB-INF/home-task-flow-definition.xml#home-task-flow-definition"; +
  
  * public RegionNavigationBean() {* +}
  *}*
  
  * public TaskFlowId getDynamicTaskFlowId() {* +}
  Return TaskFlowId.parse (dynamicTaskFlowId); +
  *}*
  
  * public void setDynamicTaskFlowId (String taskFlowId) {* +}
  this.dynamicTaskFlowId = taskFlowId; +
  *}*
  *}*
  
  taskFlowId is set to the homepage def to + * ${pageFlowScope.regionNavigationBean.dynamicTaskFlowId} * +.
  
  In a table (i.e. display on my model layer object) DB I store a menu ID and a corresponding task_flow_id.
  
  Then I created a class of earphone action (RegionNavigationListener - scope of stream page) which I link to my menu on my main page items (property listener action on the item of menu = + * #{pageFlowScope.regionNavigationAction.processAction} * +)
  
  In this action (processAction method) listening port, I retrieve rowset in the VO menu and find the record that matches my menu ID that triggered the action event, recovering the task_flow_id that needs to be accessed.
  
  I then try to retrieve the instance of the RegionNavigationBean with the following statement: RegionNavigationBean regNav = (RegionNavigationBean) JSFUtils.getManagedBeanValue ("regionNavigationBean"); +.
  It seems to work fine, but as soon as I try to use it I get a NullPointerException error, for example:
  regNav.setDynamicTaskFlowId (menusRow.gettaskFlowId ()); +
  or:
  System.out.println ("%" + regNav.toString ()); +
  
  This is quite new to me... any help would be appreciated!
  
  Thank you
  Mario

  Hi Mario,.

  I tried following codes to get a bean managed in a region, it is very good for me.
  ManagedBean is the name of the class.

  FacesContext ctx = FacesContext.getCurrentInstance ();
  Application app = ctx.getApplication ();
  ManagedBean MB = (ManagedBean) app.evaluateExpressionGet (ctx, "#{pageFlowScope.managedBeanName}", ManagedBean.class);

  Todd

• [ADF, JDev12.1.3] How to set a variable to bind a VO (where clause) in a managed bean?

  Hallo,

  I have a request based on VO.

  The query contains a where clause clause and a bindi variable.

  In a managed bean I would like to access the iterator of VO setting the value of the bind variable and read the result.

  I found this code it is good start, but I do not know how to set the variable binding.

  BindingContext bctx = BindingContext.getCurrent();
  BindingContainer bindings = bctx.getCurrentBindingsEntry();
  DCIteratorBinding iter = (DCIteratorBinding ) bindings.get("MyVO1Iterator");
  iter.execute();
  
  
  

  You kindly help me?

  Also, I would like to know if it is generally advisable to use VO directly in controlled beans or whether it would be best to create in the AppModuleImpl methods that do this and return the result.

  In my case for example of the VO will return max 1 plug so I'm in doubt, if the creation of a method in the AM that returns a custom class, which attributes contain values of the line of VO.

  Sorry if these questions may seem artificial, but I am a beginner, I have many doubts and so I would be happy to receive some tips regarding best practices.

  Thank you

  Federico

  You can use:

  iter.getViewObject().setNamedWhereClauseParam("yourBindVar", value);
  

  Note that this approach is used if you have bind variable in the where clause.

  To set variables bind to ViewCriteria, you must use VarableValueManager.

  This post may be useful for you: binary: how to set the Bind variable values at run time?

  Also, I would like to know if it is generally advisable to use VO directly in controlled beans or whether it would be best to create in the AppModuleImpl methods that do this and return the result.

  You must set "use VO directly.

  For example, from the point of architecture, is probably best to use the method in the model project which will set the bind variable and execute the query.

  Or you can use the ExecuteWithParams operation in your the view layer.

  In my case for example of the VO will return max 1 plug so I'm in doubt, if the creation of a method in the AM that returns a custom class, which attributes contain values of the line of VO.

  Not to complicate your life

  All VO lines are represented as ViewRowImpl class if you already have "custom class".

  Finally, you can generate your own ViewRowImpl class if it is necessary for this.

  Dario

• javax.faces.el.EvaluationException: inaccessible identifier, target &lt; managed bean &gt; resolved to null

  jdev 11.1.1.6

  I created a defined task with two jspx files browse.jspx and more.jspx flow(task-flow.xml)

  Click on the more button in browse.jspx, I'm supposed to be accessed at more.jspx. the code is as follows:

  < managed-bean id = "__21" >

  < id managed-bean-name = "__23" > TestBean < / managed-bean-name >

  < managed-bean-class id = "__22" > com.poc.bean.TestBean < / managed-bean-class >

  < managed-bean-scope id = "__20" > session < / managed-bean-scope >

  < / managed-bean >

  < id = 'Browse' view >

  Browse.jspx < page > < / print this page >

  < / view >

  < id of the view 'Plus' = >

  More.jspx < page > < / print this page >

  < / view >

  < rule of flow control = "__2" id >

  <-activity-id id = "__3" > Browse < /-activity-id >

  < control-flow-case id = "__4" >

  < result id = "__6" > goMore < / de-results >

  <-activity-id id = "___5" > more < / to-activity-id >

  < / control-flow-case >

  < / control-flow-rule >

  ..

  ...

  Browse.JSPX:

  < af:commandButton text = "More" id = "cb4".

  action = "#{TestBean.browseAction}" / >

  TestBean.java:

  public String browseAction() {}

  return "Gomoré";

  }

  Click on the button, I get the exception:

  javax.faces.el.EvaluationException: inaccessible identifier, target, "TestBean" resolved to null

  at org.apache.myfaces.trinidad.component.MethodExpressionMethodBinding.invoke(MethodExpressionMethodBinding.java:51)

  at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)

  at org.apache.myfaces.trinidad.component.UIXCommand.broadcast(UIXCommand.java:190)

  at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:475)

  at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:756)

  Please notify

  Replace:

  action = "#{TestBean.browseAction}" / >

  with:

  action="#{pageFlowScope.TestBean.browseAction}"/ >