Call the bean managed during the loading of the page in adf

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• Call a method bean after loading the page in the file jsff

  Hi all

  I'm working on JDeveloper 11.1.1.7.0.

  I need to call a managed bean method after jsff is responsible. My requirement is that I must add dynamically RichImage on my page. So I put a PanelGroupLayout as a container on the page. I add the RichImages to this PanelGroupLayout with

  parentUIComponent.getChildren () .add (childUIComponent);

  I tried using regionController but it gives me as regionController Null pointer has no access to user interface components on the page.

  then I tried with javascript, but it is not shooting my bean method managed. I put the code below in my home.jspx

  < af:document id = "d1" >

  < af:serverListener type = "onloadEvent" method="#{viewScope.ConnPocBean.initMethod}"/ >

  < af:resource type = "javascript" >

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  Returns true;

  }

  < / af:resource >

  and below is the code in my testPage.jsff file

  < af:clientListener method = "onLoadClient" type = "load" / >

  But here, when loading my testPage.jsff... initMethod() is not going to get fired.

  Please let me know what is the problem here.

  Thank you

  Fox

  If you want to try other ways to add a child element to PanelGroupLayout, use:

  parentUIComponent.getChildren () .add (childUIComponent);

  AdfFacesContext.getCurrentInstance () .addPartialTarget (parentUIComponent);

  in the Get accessor of the binding of an element method, which is placed after PanelGroupLayout in your jsff. So when the next component is loaded the child will be added to the PanelGroupLayout

• How to call the bean support just after JSFF / fragment of page loads?

  Hello

  I have a simple requirement - call the Backing Bean method for my page-fragment AFTER that its loading. The JSFF is delimited to the workflow.

  I tried the solution given here: http://fortunefusionminds.blogspot.com.au/2013/04/how-to-invoke-backing-bean-method-right.html but it does not work for me.

  Every time I tried to access any link layer (i.e. the PanelFormLayout DepartmentId) attribute/property within the refreshRegion method below gives NullPointerException.

  My DepartmentId property is exposed to the Backing Bean by using the Bindings property in the property inspector.

  @Override
  

  {} public boolean refreshRegion (RegionContext regionContext)

  int refreshFlag = regionContext.getRefreshFlag ();

  
  

  if(refreshFlag == RegionBinding.PREPARE_MODEL) {}

  System.out.println (getDepartmentId.GetValue ())

  }

  regionContext.getRegionBinding (.refresh (refreshFlag));

  Returns false;

  }

  
  

  {} public void setDepartmentId (RichInputText departmentId)

  this.departmentId = departmentId;

  }

  public RichInputText getDepartmentId() {}

  return departmentId.

  }

  Any help please?

  Thank you

  Hitesh Patel

  Hi all

  Here's how it works for me.

  1. in your backing bean create property & its get accessor for afterPageLoad as below. We don't need a setter method.

  private; channel afterPageLoad

  public String getAfterPageLoad() {}

  If (!.) {AdfFacesContext.getCurrentInstance.isPostBack ()}

  initPage();

  }

  Return afterPageLoad;

  }

  private void initPage() {}

  System.out.Print ("I'm initPage() and called exactly once");

  }

  2. create a hidden field to the bottom of your JSFF page as below.

  Thanks - Hitesh

• How to call a method of the AM with parameters of Bean managed?

  Hello world
  
  I have a situation where I need to call the Managed bean (setDefaultSubInv) AM, under value changes Listner method. Here's what I do, I added the AM method on page links, and then at the bean call it
  
  Class [] paramTypes = {};
  Object [] params = {};
  invokeEL ("#{bindings.setDefaultSubInv.execute}", paramTypes, params);
  
  It works and be able to call this method, if there are no parameters. Say that I pass a parameter to setDefaultSubInv(String a) method AM, I tried to call it bean but raise an error
  
  The string available = 'test ';
  Class [] paramTypes = {String.class};
  Object [] params = {DISP};
  invokeEL ("#{bindings.setDefaultSubInv.execute}", paramTypes, params);
  
  I'm not sure this is the right way to call the method with parameters. Can anyone tell how to call a method of the AM with bean to manage settings
  
  Thank you
  San.

  Just do the following

  1. your method in the Client Interface.
  2 - Add to Page Def.
  3 - Customize your Script like below one to reach your goal.

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  I hope it helps you
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• 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] Call ExecuteWithParams operations programmatically when the page is loaded. How...?

  Hallo,

  in a working group, I have a 'readonly' page that uses in many istances VO (for fields, tables,...).

  When the page is loaded, I need to call its ExecuteWithParams operation for each VO.

  I would drag / drop (cascading) the operation of each VO ExecuteWithParams in the workflow, but the problem is that I need to run logic to call.

  For example, I have some cases in which I have to exec VO, and then pass the value of a field in the returned to the VO ExecuteWithParams, another record.

  I guess I can't manage this 'declarative' in the taskflow but I use code in a managed bean.

  So far, I've added for each VO ExecuteWithParams action page links.

  I know I can use a code like this to call the ExecuteWithParams for each VO...

  OperationBinding operationBinding = BindingsUtils.getBindings().getOperationBinding("ExecuteWithParamsToCall");
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  I wrote in the managed bean extended view a public function initPage() tha called the ExecuteWithParams.

  How to use this function?

  I can use it during the lazy fo page load?

  Can I use it as a method call to place in the working group before the page? I have to admit that I already tried that way, but it did not work...

  In addition, after calling a VO ExecuteWithParams, as I said before, I may have the need to treat the VO after his execution to gather values for some fields (I'll pass these values to the other VO ExecuteWithParams).

  Can I access the iterator from the bean by using the iterator binding?

  Thank you very much

  Federico

  Instead, I have to create it in the the methodCall1 pageDef?

  Yes

  And if methodCall1 calls - as in my case - the function of a bean that uses the ExecuteWithParams many istances VO... I create all the necessary links in the methodCall1 pageDef?

  Yes

  And Yes... Links ExecuteWithParams that I created in the page untitled1 aren't necessary?

  Once again Yes (except if you do not have to invoke to untitled1 page)

  If you have 2 minutes trying to download the app, so you'll have is that I was

  I have more than 2 minutes (I hope), but I did not immediately jdev

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  Hello
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  I created an example Web J2ee Application.
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  Hello

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