call method before managed Bean support page

Similar Questions

• getBindings() not found in the bean support page

  Hello
  
  I want to call a method on AM during the click on the button to the user interface.
  
  To do this, I exposed the AM method through the client interface.
  Add code to call this method of support following page bean:
  --------------------------------------
  BindingContainer links = getBindings();
  OperationBinding operationBinding =
  bindings.getOperationBinding ("updateAvailableQty");
  
  If you want to put values in method parameters:
  operationBinding.getParamsMap () .put ("orderedQuantity",
  New Integer (orderQty));
  
  Object result = operationBinding.execute ();
  If (! operationBinding.getErrors () .isEmpty ()) {}
  System.out.println ("error getting the operationbinding!");
  ---------------------------------------------------
  
  getBindings() method is as follows:
  ----------------------------------------------------
  public BindingContainer {} getBindings()
  If (this.bindings == null) {}
  FacesContext fc = FacesContext.getCurrentInstance ();
  This.Bindings =
  (BindingContainer) fc.getApplication () .evaluateExpressionGet (CF,
  "#{bindings}."
  BindingContainer.class);
  }
  Return this.bindings;
  }
  ----------------------------------------------------
  
  
  It displays error complition "Error (151,22): bindings of variables found in the view.backing.OrderPage class.
  
  Please advise in this regard.
  Thank you

  You must declare a local variabel links in your beans to make the code work:

  BindingContainer bindings = null;
  
  public BindingContainer getBindings() {
  if (this.bindings == null) {
  FacesContext fc = FacesContext.getCurrentInstance();
  this.bindings =
  (BindingContainer)fc.getApplication().evaluateExpressionGet(fc,
  "#{bindings}",
  BindingContainer.class);
  }
  return this.bindings;
  }
  
  // your method  here
  

  Timo

• TaskFlow as call CreateInsert in backing bean before display region

  Build JDEVADF_11.1.1.4.0_GENERIC_101227.1736.5923
  
  I use a stubborn workflow (area dybnamic)
  I like to call a workflow method before showing the form Page(binding inside)
  my error is a pointer exception zero

      public void createInsertMember() {
              BindingContainer bindings = getBindings(); 
              OperationBinding operationBinding = bindings.getOperationBinding("CreateInsert"); // <<<<<<<<<<<<<<<<<<null Pointer exception
              Object result = operationBinding.execute();
              if (!operationBinding.getErrors().isEmpty()) {
                  return ;
              }
              
              DCIteratorBinding dciter =(DCIteratorBinding) bindings.get("VOMemberIterator");
              ViewObjectImpl vo = (ViewObjectImpl)dciter.getViewObject();
              Row row = vo.getCurrentRow();
              if(row == null){
                System.out.println("Current Row is null");
                return;
              }
              String clientIpAddress =
                       ((HttpServletRequest)FacesContext.getCurrentInstance().getExternalContext().getRequest()).getRemoteAddr();
              
              row.setAttribute("Memberuuid", UUID.generateUUID().toString());
              row.setAttribute("LastIp", clientIpAddress);
              row.setAttribute("Registerat", new java.util.Date());
          // Add event code here...
      }
  }

  How can I call method to CreateInsert before you see the shape (backingBean)?
  THX Thomas
  
  Edited by: thietho the 14.03.2011 13:08

  Hello

  the NPE you see is because the method call activities do not have a binding of the ADF (PageDef) file. You can avoid all your code by using the CreateWithParams operation. How to work with the operation CreateWithParams is explained here:

  http://www.Oracle.com/technetwork/developer-tools/ADF/learnmore/13-create-with-params-169140.PDF

  Instead of manually adding the CreateWithParams operation, you simply drag the operation on the workflow diagram where it shows like a method call activity and. GOS to the PageDef created and create arguments you must

  Frank

• How to get the selected values of the af:selectManyChoice in the bean support

  Hello
  
  I have a selectManyChoice with a list of static, as shown below.
  At the click of the button, is called a method in the bean support. I want to get the list of the values selected by the method of the bean.
  How to do the same thing.
  

  <af:panelFormLayout id="pfl1" fieldWidth="50%" labelWidth="50%">
          <af:selectManyChoice label="Days" id="smc1"
                               binding="#{Bean.addDaysChoice}">
            <af:selectItem label="Monday" value="MON" id="si17"/>
            <af:selectItem label="Tuesday" value="TUE" id="si13"/>
            <af:selectItem label="Wednesday" value="WED" id="si15"/>
            <af:selectItem label="Thursday" value="THU" id="si14"/>
            <af:selectItem label="Friday" value="FRI" id="si11"/>
            <af:selectItem label="Saturday" value="SAT" id="si16"/>
            <af:selectItem label="Sunday" value="SUN" id="si12"/>
          </af:selectManyChoice>        
            <af:commandButton text="Button"
                              actionListener="#{bean.callSomeMethod}"
                              id="cb1"/>  
  <af:panelFormLayout/>

  Thank you
  Ajay
  
  Published by: Ajay on January 31, 2011 06:26

  Hello

  What about setting the property "value" of the selectManyChoice, and then point to a method of the managed bean (setter/accessor for a variable of type list)?

  Frank

• synchronization in managed bean

  Hello
  
  I'm in a matter of synchronization methods for managed bean.
  
  As I understand it, I don't have to synchronize inside the method of bean extended reach or session request.
  
  Since the lifecycle jsf serves requests using a particular instance of managed bean and no other application can access this instance until the current request is completed.
  (please, correct me if I'm wrong)
  
  but in the scope that they are also acting as above?
  
  the synchronization and management concurrent access is completely the JSF container?
  
  I don't understand
  
  can someone please explain?
  
  Thnaks
  
  ~ Pablo

  As I understand it, I don't have to synchronize inside the method of bean extended reach or session request.

  You don't have to synchronize the application scope beans because they are unique to the current request.

  You only peut not to synchronize the scope of session beans unless you must face properly the same user using multiple tabs in one browser to access your application. This is more common than you might think, and of many web apps does not manage it properly.

  You must synchronize the application scope beans because there is only one of each and every accessible by > 1 requests simultaneously.

• Error when calling a method AM of Bean managed

  Hi friends,

  JDev's Studio Edition Version 11.1.2.4.0

  I have a page (HomePG) that has a read-only table. Select a field in the table and you enter a value for the inputText and then clicking on a button, the selected employee's salary should be replaced by the value entered in the inputText field.

  I am trying to call a method of the managed bean AM and I get an error while doing this. I created a link to the method in the page where the call is made.

  Here is the code of the AOS

  ' Public Sub hikeSelectedRow (Key key, BigDecimal val) {}

  ViewObjectImpl emp = getEMPVO1();

  RowSetIterator empVO = emp.createRowSetIterator ("Test");

  System.out.println ("in selected Update");

  System.out.println ("in selected, Update key:" + key);

  Row [] selectedEmpArr;

  selectedEmpArr = empVO.findByKey (key, 1); -> Error comes here

  System.out.println ("in selected, Update key:" + key.toString ());

  EMPVORowImpl selectedEmp = (EMPVORowImpl) selectedEmpArr [0];

  selectedEmp.setSal (selectedEmp.getSal () .add (val));

  System.out.println ("added, made Bravo");

  getTransaction () .commit ();

  }

  The line is selected in the Managed bean and is also selected. However during appraisal findByKey get the performance I get the below error. Can someone please.

  The error I get is

  < ActionListenerImpl > < processAction > java.lang.NumberFormatException: for input string: "[oracle.jbo.Key [7566]].

  javax.faces.el.EvaluationException: java.lang.NumberFormatException: for input string: "[oracle.jbo.Key [7566]].

  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)

  to oracle.adf.view.rich.component.fragment.ContextSwitchingComponent$ 1.run(ContextSwitchingComponent.java:130)

  at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent._processPhase(ContextSwitchingComponent.java:461)

  at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent.broadcast(ContextSwitchingComponent.java:134)

  at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:112)

  to oracle.adf.view.rich.component.fragment.ContextSwitchingComponent$ 1.run(ContextSwitchingComponent.java:130)

  at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent._processPhase(ContextSwitchingComponent.java:461)

  at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent.broadcast(ContextSwitchingComponent.java:134)

  KeyVal key = new key (new Object() {Integer.parseInt (((List) tableIterator.next ()) m:System.NET.SocketAddress.ToString ())});

  So, what will return: (tableIterator.next ()) m:System.NET.SocketAddress.ToString () (list)?

  I suppose this relates a strange string?

  Check out this blog for a correct use of the RowKeySet (and is also described in a easier way to get the current line in the case of single selection): ADF:TABLE - Get selected or lines. John Brunswick

  Dario

• What is the best way to call a method in the bean on the adf page loading?

  Hello
  
  which is the best way to call a method in managing the beans on the adf page loading.
  
  My version of jdev 11.1.1.5.0
  
  Thank you

  I don't know if it's the right answer for your question try this...

  In taskflow for properties of method call, you must return a value when you use #{pageFlowScope.returnvalue} (returnvalue is a variable), so you can use your return value in the taskflow... Please let me if this is correct...

• The create method call in managed beans

  Hi experts,
  
  I develop Jdeveloper 11.1.2.2.0
  
  I would like to call 'method to create' of certain programmertically of veiwobject in a managed bean.
  Pls advice.
  Thank you.
  
  Mauricette

  import oracle.adf.model.BindingContext;
  import oracle.binding.BindingContainer;
  import oracle.binding.OperationBinding;
  
  public class Test
  {
    public Test()
    {
    }
  
    public BindingContainer getBindings()
    {
      return BindingContext.getCurrent().getCurrentBindingsEntry();
    }
  
    public String cb1_action()
    {
      BindingContainer bindings = getBindings();
      OperationBinding operationBinding = bindings.getOperationBinding("CreateInsert");
      Object result = operationBinding.execute();
      if (!operationBinding.getErrors().isEmpty())
      {
        return null;
      }
      return null;
    }
  }
  

• Managed Bean method called several times in AF:ITERATOR

  Dear all,
  I can do not to understand this concept in the ADF. Being a beginner, I would like to know
  the reasoning behind this.
  
  I use af:foreach components and then I link it to my below managed bean.

  <af:panelTabbed id="pt1">
       <af:forEach var="item" items="#{testBean.departmentsData}">
         <af:showDetailItem text="#{item}" id="sdi1"/>
       </af:forEach>
  </af:panelTabbed>

  public class TestBean {
      public List getDepartmentsData() {
          System.out.println("I was clicked!!!!");
          List lstData = new ArrayList();
          lstData.add("IT");
          lstData.add("Finance");
          lstData.add("Accounting");
          return lstData;
      }
  }

  On the first charge, it prints 7 times "I clicked".
  
  When I clicked on one of the tab, I get 7 again which means my method was called 7 times.
  Any reason behind this. ? Thank you.
  
  I have used JDEV PS3 is told by the way.

  Rather than build the list in your getter, build a list somewhere (in the constructor, perhaps). Your getter can then return just this list.

  John

• 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

• methods of binding and beans definition Page wrapper

  Hello
  
  Please take account of this blog post by Steve Muench:
  "Check your App for abuse of Configuration.createRootApplicationModule ().
  http://radio.weblogs.com/0118231/2009/08/20.html#A959
  
  He pointed out first when not using Configuration.createRootApplicationModule (), but he then suggests to not pass the JSR 227 link layer:
  
  "Instead, to call an interface method of client on an application module, object view or line of sight, you should use an ADFM binding action to invoke declarative rather." ... If you do not need to write code to support custom... Bean, then your bean to support code should only invoke the client interface on the module of the application method using binding action. "One of the main reasons to use the binding action of your own custom code is to ensure that all exceptions are handled in the same and consistent way as if the ADF had called the declarative method."
  
  So one way to implement this would be to create a method to support bean just to wrap this link of the action. It would have the same method signature as the method of original client interface used to create binding action. Such a "bind method wrapper' could be called by other methods of support bean which are themselves related to the user interface components to respond to UI events. Such a "binding method wrapper" would introduce more maintainable code and would be reusable in the bean support.
  
  (q1) JDeveloper has support to create easily such a "binding method wrapper" or should she have this support?
  
  Perhaps, this can take a step more far. What happens if JDeveloper would (optionally) automatically maintain a bean managed for each definition file of the Page with these "connection wrapper methods. This "bean of definition of the pages' could be injected or solved in other beans of support to easily allow fast access programmatically to the bindings declaratively defined action. It's actually programmatic client access to the methods of the interface.
  I don't know in what context these "connection wrapper methods" in these "beans of the definition of the pages" should / could be available.
  
  (If principles such as "binding the wrapper methods" or "Beans Page definition" already exist, please post the references here. If other names would be more appropriate, please answer.)
  
  concerning
  Jan Vervecken

  I filed the request for improvement # 8920226 to capture this suggestion. Thank you.

• How to call the taskflow or bean method after returning from operational-stream-call activity.

  I use JDev 11.1.2.4.0.

  Here is my scenario:

  A page contains a table with a button 'Add' called a popup.  The popup has controls to select data and save/Cancel buttons.  The Save button calls a managed bean method will add a line to the iterator in the table is built on.  I'd like the table to refresh the closure of the pop-up window.

  This is how I implemented it:

  I have taskflow1 that contains an activity view (page1).  Page 1, I have a button that calls managedBean1.method1 () who does a job and returns a result of 'showpopup '.  ShowPopup goes to a task-flows-call activity, called taskflow2.  Taskflow2 has a point of view (page 2, which is presented as a popup) activity and a return.   I want to call a method in managedBean1 to refresh the table once the popup is closed and I can't understand the right way to do it.

  After writing this I wonder if I should create the popup in the calling page rather than creating a separate workflow.  I started with a separate workflow because the popup is a quite complex.

  Thanks for help.

  Rudy

  Add a listener to return the button 'Add '. It will be called by ADF Faces upon return of the taskflow. For example:

  useWindow = "true" windowWidth = "600" windowHeight = "400".

  action = "#{MyBean.Method1} '"

  returnListener = "#{MyBean.myReturnListener}" / >

  And the bean method:

  public void myReturnListener (ReturnEvent returnEvent)

  {

  Do something, for example to update the table on the screen

  AdfFacesContext.getCurrentInstance () .addPartialTarget (myTable);

  }

  NB. don't forget to mark the taskflow call activity to 'run as dialog '.

  If you need the taskflow return result, you can get it in the earpiece to return via the method ReturnEvent.getReturnValue ().

  Dimitar

• calling a method from javascript bean

  Hi forum,
  
  I was wondering if it is possible to call a method of bean managed from javascript. Why do I need it? Because I want to implement a simple javascript and light confirm dialogue resulting (Y or N) determines if the call or not a method that could achieve a vo. To be more precise, I hava a table only reading and I want to give the user the option to select a single line and remove it without taking to another page but confirming a javascript dialog box.
  Thank you very much in advance.
  
  Alberto

  Yes,

  .. You should forget about it. 10.1.3 doesn't have a callback method in controlled beans. In theory, you can create a filter for the faces servlet and pass a parameter of specific application as a flag with the request, so the filter can attempt to access the bean managed and put some information below. However, on the client side you would issue such a XMLHttpRequest

  Frank

• Access a managed bean of a region on a page

  Hi Experts,

  I have a parentTF.xml of flow of tasks parent that contains a page, parentPage.jsff and I have an area of childTF.xml.

  childTF.xml has a managed bean, childBean.java and parentTF a parentBean.java.

  I want to go to the parentBean.java chilBean method. Is this possible?

  Re: Access to a taskflow bean managed via code

  Let me know if you need assistance...

• Its value cannot be changed when AF:inpuDate is set to a managed bean method

  Dear gurus,
  
  I have a date field. MinValue I want to set the default value of the value at the date of the day but also be editable by the user.
  I put its value to a managed bean, odes, which returns the current date in java.util.Date type.
  The value is displayed correctly, but the field is not editable.
  
  The field that IS NOT bound to any attribute of the entity.
  
  I searched the internet and this forum, but I have found no solution to this simple question.
  
  Any help appreciated

  Dimitris,

  You have the value of the element associated with a bean called 'currentDate' attribute, but there is no Set accessor for the property. Where you expect the value to check if the user has changed the value? You would need a method "setCurrentDate()" in your bean for the editable field.

  The get/set accessor you showed us (get/setStartDate) are for the instance of the component, not its value

  John