Event handlers - subscribed

Hi,
In the controller I have created an event and a method to fire it. In the view, I need to create a "handleControllersEvent" event handeler, but I cannot subscribe the event from the controller because the dropdown is empty.
What is necessary (or what have I missed) so that the events from the controller are visible in the subscribed event ddlb when creating an event handler in a view.
Note: I am using the popup dialog tutorial as a referenence for my application.
Thanks for the input.
Regards,
faB

Hi faB,
open your view, go to "Proprties", press "Add" and add your cotroller.
Regards, Maxim R.

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Event Handlers and Methods

Hi
I am new to web dynpro java . I want to know what are various situations in which Event handlers and Methods are introduced into component controller of a web dynpro component and situations in which individual component subscribe to event in component controller..
Thanks
prasad

Hi Prasad,
When we write Events and methods inside the component controller those becomes visible throughout the components. So, for example, any action of a view of the component can call such a method of the component controller.
And when we write an Event or Method inside an individual component, it's life cycle remains inside the component only.
This is the basic difference.
Moreover, If you create attributes insdie component controller those becomes known to all methods that are called within a component and can be used by them, provided they have the Public property.
Hope it helps...
Regards,
Sen

Do I need to worry about these event handlers in a grid from a memory leak perspective?

I'm pretty new to Flex and coudn't figure out how to add event handlers to inline item renderer components from the containing file script so I attached the listnerers simply as part of the components themselves (eg <mx:Checkbox ... chnage="outerDocument.doSomething(event)"../>):
<mx:DataGrid id="targetsGrid" width="100%" height="100%" doubleClickEnabled="true" styleName="itemCell"
      headerStyleName="headerRow" dataProvider="{targets}"
      rowHeight="19" fontSize="11" paddingBottom="0" paddingTop="1">
     <mx:columns>
     <mx:DataGridColumn width="78" dataField="@isSelected" headerText="">
     <mx:itemRenderer>
          <mx:Component>
               <mx:HBox width="100%" height="100%" horizontalAlign="center">
                    <mx:CheckBox id="targetCheckBox" selected="{data.@isSelected == 'true'}"
                         change="outerDocument.checkChangeHandler(event);"/>
                    <mx:Image horizontalAlign="center" toolTip="Delete" source="@Embed('/assets/icons/delete.png')" useHandCursor="true" buttonMode="true"
                         click="outerDocument.deleteHandler(event);"/>
                    <mx:Image id="editButton" horizontalAlign="center" toolTip="Edit" source="@Embed('/assets/icons/edit-icon.png')" useHandCursor="true" buttonMode="true"
                         click="outerDocument.editHandler(event);"/>
               </mx:HBox>
          </mx:Component>
     </mx:itemRenderer>
     </mx:DataGridColumn>
          <mx:DataGridColumn id="Name" dataField="@collectionDesc" headerText="Name" itemRenderer="com.foobar.integrated.media.ui.component.CellStyleForTargetName"/>
          <mx:DataGridColumn id="Created" width="140" dataField="@createDateTime" headerText="Created" labelFunction="UiHelper.gridDateFormat" />
     </mx:columns>
</mx:DataGrid>
This grid is part of a view that will get destroyed and recreated potentially many times during a user's session within the application (there's a large dynamic nature to the app and views are created at run-time.) By destroyed I mean that the view that holds the above datagrid will no longer be referenced under certain circumstances and an entire new view object is created (meaning the old datagrid is no longer refernced and a new one is created.)
I heard you should clean up event handlers when they are no longer used, and I know at what point the view is destroyed, but I don't know how to clean up the event handlers added to the item renderer components? Is it something that the Flex garbage collector will handle efficiently?
Also, on a somewhat related note, how could I push the item renderer to an external component since in my event handlers for the item renderer buttons I need a reference to the datagrid.selectedIndex which, as an external item renderer I wouldn't have access to this containing grid?

No. You don't need explicit cleanup in this case: if your outerDocument is going away, you have nothing to worry about. The event handler leak can happen in sort of the reverse situation: suppose you have a long-lived MyView that contains a custom DataGrid like the one below. Now suppose that MyView frequently destroys and re-creates the grid. And suppose that on its creationComplete event, the grid registers a listener for outerDocument's (MyView's) enterFrame Event. Unless you explicitly remove this listener, MyView will still have a reference to it even after the grid that registered the listener is destroyed (and garbage collected).
This is a pretty contrived example, but it sort of illustrates the potential for leaks: a certain component is elligible for garbage collection, but some longer-lived component holds a reference to it (or part of it, such as a listener function). If the longer-lived component is elligible for GC as well, you don't really need to worry about proper cleanup. That's what you're paying the GC processor cycles for.

Unable to Create Event handlers , Plugs

Hello everyone,
We've just moved to a new development environment and had our existing WebUI enhancements transported from an old one (which was CRM 7.0 EHP1). The new system was also already in EHP1.
The problem is we couldn't create any new Event Handlers and Inbound and Outbound plugs in an enhanced component via BSP_WD_CMPWB. Even though the component has already been enhanced, the system keeps on asking for an Access Key to edit SAP Standard objects and behaving as though the component hasn't been enhanced at all.
Has anyone encountered this before? Any SAP OSS Note to fix the problem?

Hello,
Thanks for your replies, the issue has been solved. When the enhancements were transported into the new system the database entries used by the enhancement wizards weren't included into the transport. Basically we had to update the ff tables:
BSP_WD_GEN -> Table with generated classes
BSP_WD_EXT_HIST -> Mapping Table source controller class to Z controller class, and source context class to Z context class

How to expose and code the event handlers of a base class?

I have created a class that inherits NumericUpDown. When I instantiate an object from that class, I can make it visible and have it appear on my form just like any other NUD. How can I get that instantiated object to expose the event handlers of its base
class, the NUD in this case, so that, for example, I can tell the client what action to take when the value of the instantiated object changes?
Thanks for your help.

I am not sure exactly what you mean. Are you adding your NUD controls to the Form at design time from the toolbox or adding them in code at run time? If you are adding them to the form from the toolbox then you access the events the same way
you would a standart NUD control. If it is at runtime and you have a fixed amount of them you are going to add then you can declare them Class Scoped using the
WithEvents keyword which will let you access all their events.
Public Class Form1
Private WithEvents Nud1 As New NUD
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.Controls.Add(Nud1)
End Sub
Private Sub Nud1_ValueChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles Nud1.ValueChanged
Me.Text = Nud1.Value.ToString
End Sub
End Class
Public Class NUD
Inherits NumericUpDown
'Your custom code to make it work how you want...
End Class
If this is not what you are doing then you may need to explain a bit more and show the code you are using so we understand better.
If you say it can`t be done then i`ll try it

[JS] Basic question about event listeners and event handlers

I am very new to the whole topic of event listeners and event handlers. I'd run the test for the following problem myself, but I don't know where to start, and I just want to know if it's impossible -- that is, if I'm misunderstanding what event listeners and event handlers do.
Say I have an InDesign document with a text frame that is linked to an InCopy story. Can I use an "afterImport" event listener on the text frame to perform some action any time the link to the InCopy story gets updated? And will the event handler have access to both the story that is imported, and the pathname of the InCopy file?
Thanks.

Thank you, Kasyan.
Both of those are good solutions.
We are currently using InDesign CS4 and InCopy CS5. I'm hoping to get them to purchase the whole CS5 suite soon, since I'd like to start writing scripts for InDesign CS5 as soon as possible, as long as I'm going to have to be doing it in the not too distant future anyway. The greater variety of event handlers sounds like it might be something that is crucial to the project I'm working on, so that adds to the argument for getting CS5.
Thanks again. You have no idea how helpful this is. I made some promises to my boss yesterday that I later realized were based on assumptions of mine about the InDesign/InCopy system that didn't make any sense, and I was going to have to retract my promises. But after reading your response I think I can still deliver, in a slightly different way that I had been thinking before.
Richard

Help with Event Handlers with Scope

I have a question of how I must implement the event handlers with scope, I have problems in the execution of processes BPEL (they are generating exceptions in the dehydration)
I have two models for event handlers and I need to know which is the best way to implement event handlers.
Another question is, in what it influences the "variableAccessSerializable" attribute.
Thanks!
1) Event Handlers with PartnerLink invocation OUTSIDE Scope
<invoke name="Invoke_1" partnerLink="PartnerLink1"/>
<scope name="Scope_1" variableAccessSerializable="yes">
<eventHandlers>
<onMessage partnerLink="PartnerLink1"/>
<onAlarm/>
</eventHandlers>
<sequence name="Sequence_1">
</sequence>
</scope>
2) Event Handler with PartnerLink invocation INSIDE scope
<scope name="Scope_1" variableAccessSerializable="yes">
<eventHandlers>
<onMessage partnerLink="PartnerLink1"/>
<onAlarm/>
</eventHandlers>
<sequence name="Sequence_1">
<invoke name="Invoke_1" partnerLink="PartnerLink1"/>
</sequence>
</scope>

Thanks -- indeed a crucial call might be missing. I was doing
this until 3 yesterday morning.
Would this be the correct sample code to use? :
http://livedocs.macromedia.com/flash/mx2004/main_7_2/wwhelp/wwhimpl/common/html/wwhelp.htm ?context=Flash_MX_2004&file=00000846.html
It seems to work (although someone cautions in the page
comments that it doesn't).
Part of my trouble in working with AS 2.0 is that I feel I
shouldn't have to do such complicated things (Delegate classes,
etc) in order to get simple things done (loading XML files). This
is not a complaint per se -- rather I feel that I must be missing
something, that it is my inexperience that is causing me to bend
through so many hoops: programming "should" be elegant and simple.
So, any links helpful. Thanks.

Problems with .chart-plot-background and event handlers

Hello. I'm trying to add event handlers to my chart so that the user can be allowed click within the chart itself to perform certain actions like dragging, zooming, etc. To avoid having to deal with handling mouse clicks that lie outside the chart itself (for example on the axes), I've found that:
.chart-plot-background
is the Region that gives me the entire chart and nothing else. However, when I attach mouse listeners to this Region, the event is only registered on half of the cells in the chart. If you've seen the default JavaFX Chart background layout, you know that it contains alternating rows of cells with slightly different coloring. I've found that only the rows with the lightest gray coloring actually register a mouse click on them, which makes me believe the dark grey cells are not part of the .chart-plot-background, but something else on top.
To me, this feels like an oversight in how the regions of the chart are defined. Why can I not get a listener to work on the whole chart and nothing else? Currently the only workaround seems to be to take the Region:
.chart-content
instead, and compute the difference between this region and the .chart-plot-background in order to manually suppress mouse clicks that lie outside .chart-plot-background.
Anyone have suggestions? Is this worth issuing on the JavaFX Jira?

Hello,
I'm not an expert on controls, but here is my guess based on your description: when you register an event handler on a "background" node, it is called only when the mouse hovers over the background node - I suppose the light gray is the background with the light gray cells being transparent and dark grey cells being filled. So the behavior seems correct - you can't expect the events to be delivered to background when it is covered by other nodes. I think you really should register the handler on the entire chart and filter out the events you don't want to handle. This however should not require much of computing the difference between the regions, it should be possible to do just something like
if (!background.contains(event.getX(), event.getY())) {
return;
Provided that the background doesn't reach under the axes as well. Note that if there are any different transforms between the background and the node with the handler registered on it, you may need to recompute the coordinates by
background.sceneToLocal(event.getSceneX(), event.getSceneY());
And use the contains method on that.

Multiple event handlers registered for the same event and error when adding users to sec groups

Project Server 2013 CU April (May) 2014
I've created and installed two event handlers (separate dll:s) and both are triggering on Project Published - initially, both are working fine.
After an IISReset, trying to create a new security group (or add a user to an existing group) will result in an error on the page and a corresponding error in the ULS log - the latter indicating an error in the method security.creategroups, and specifically
a problem 'An item with the same key has already been added.'
An SQL trace reveals a break in execution after executing the proc 'pub.MSP_ADMIN_ReadEventReceivers' which returns all registered event handlers.
In my case, the result of that proc execution shows that there are two event handlers registered with an EVENT_ID of 53 (Project Published) and with ORDER_FIRED set to 1 and 2 respectively.
I tried removing one of the event receivers using the Central Admin PWA interface and then everything worked just fine - I added the event receiver back again, and everything STILL worked! IISReset and I got the error back again. :-(
Since there's obviously some problem with reading multiple entries from that table regardless of the ORDER_FIRED differentiation, I tried temporarily modifying one of the '53' entries in the table directly and then the sec group was created just fine!
I would like to know if anyone else has seen this? I've seen this on three separate installations now after deploying a second event listener onto those systems.
/Lars Hammarberg
//Lars Hammarberg www.connecta.se

Hi Lars,
yes I have seen the same issue. It is not related to April CU. I had the error before with SP1.
It is not only an issue with the security groups. At least in our case nothing worked at all. No custom field editing, all Queue Jobs failing.
For your case I suggest you consolidate your code in one eventhandler.
Theory says that you can have more than 1 (up to 999) eventhandlers for one Event (http://msdn.microsoft.com/en-us/library/ms481079(v=office.12).aspx) but that seems not to
work. Not sure, if it worked in earlier versions.
Kind regards
Christoph
Christoph Muelder | Senior Consultant, MCTS, MCSE, MCT | SOLVIN information management GmbH, Germany

Parallel event handlers disabling events while handling

Hi, I have an application where there are multiple event handlers in multiple while loops that are driven from the same front panel. The front panel controls are designed to provide diferent motion control moves for different axes under control. All events that trigger these moves are fired by the same event handler for the same axes of motion. Hence, for safety reasons, I do not want some of these controls to be executable while certain other move profiles are executing. Sounds simple to implement right?
When I use traditional prop nodes like disable to disable the front panel controls, the event queue still acquires the event and then subsequently executes it. I want to be able to clear this event queue so that no other events from a certain group of my front panel controls can be executed simultaneousy. However, I do not want to disable all front panel controls since I have other buttons that are capable of controlling other indepenedent things and safety functions like stopping.
It is like I need a disable events property or soemthing that can be done programmatically. Can someone please advise me on what makes sense to do here?
Attachments:
evntdisable.vi ‏119 KB

There is no way to interact directly with the event queue that LV maintains. If you need to do that you need to utilize the queue functions that LV provides and create your own event queue. However, if all you need is prevent interactions while an event in being processed, value change events have a setting that is (set by default) called: Lock Panel Until Handler Completes. And for other kinds of events, there's an option in the event structure's event-definition dialog box that perhorms the same action.
Mike...
Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion
"... after all, He's not a tame lion..."
Be thinking ahead and mark your dance card for NI Week 2015 now: TS 6139 - Object Oriented First Steps

OIM11g - Event handlers - picking up external libraries

Hi all,
I seem to be running into an issue with event handlers. I have to refer to some other custom libraries within them and they don't seem to be accessible by the event handlers.
I've put the libraries in JavaTasks and ThirdParty but I'm still getting NoClassDef found and in the worst case the Orcherstration engine seems to break preventing me from even logging into OIM and meaning I have to remove the event handler metadata manually.
Does anyone know how the event handler classpath works and where I can put libs such that event handlers can use them?
Thanks.
Wayne.

From the WebLogic Administrator screen, you can go to the servers for your OIM Server, or SOA Server, whichever will be accessing the jar. Under the server start tab, add in the path in the classpath section for your jar file. User forward slashes. Now when your server starts, it will load those jar files and they should be accessible.
-Kevin

Event Handlers OIM 11g

Hi Folks ,
I am very new to OIM 11g , Could you please help me on below :
I have a OIM system, i want to see what all event handlers are present in OIM . Could you please tell me where can i go and look to find out the event handlers in my
OIM instance .
Thanks
P

OimWannaBe wrote:
Thanks i will go through the links .., just one more question :
In 11g , creating normal process task adapters /scheduled tasks , does it involve all the plugins stuff etc .., or they are like 10 g and plugins comes in to picture when we create event handlers .No, process task adapters are the same old way, just that you need to upload the jar into the db rather than copying them. Other than that everything else needs plugins atleast.
Other Ques :
Is it possible to create pre process/pre insert Event handlers in OIM 11g for trusted reconciliation . I heard somewhere that 11g doesnt support pre insert event handlers for trusted recon , is it ?Yep you heard it right, you cannot have event handlers during 11g recon pre process.
Thanks
Preeti.Edited by: Bikash Bagaria on Dec 29, 2011 10:39 PM

Validation Event Handlers

Hi
I have a requirement of creating a user identity in OIM 11gR2 only when few set of attributes say FirstName, MiddleName and Lastname. If this set of attributes are not exist in OIM then only we have to create the user otherwise not.
So for this purpose we are using Validation Event Handlers, So whenever i am creating a user from OIM console the validation is working but with GTC reconciliation its not working.
I have implemented both the validate(long eventID, long processID, BulkOrchestration orchestration) and validate(long eventID, long processID, Orchestration orchestration) methods under that event handler.
So is it a expected behaviour that validation event handler will not work with Recon?
Can somebody also suggest, what else we can use to satisy this requirement.
Thanks in Advance

In this case the values can be null also..So i dont think we can use Required attribute option.
Let me know if you have some diffrent thought on this?

Event Handlers and Callbacks: Best way to handle?

I'm writing an actionscript class. I'm wondering how to deal
with call backs and event handlers within my class. In particular,
I'm wondering how I might structure my class so that developers
using it can choose which arguments get passed to the callback
function as they code. I've been googling and haven't found any
particularly useful information on this.
As far as I can tell, it would appear that the parameters
passed to any callback function are determined at the time I write
my class as this anonymous function example illustrates.
var myObj:Object = new MyClass('foo', 'bar');
myObj.onLoad = function(arg) {
// the args passed to this anonymous function are dictated
by the actionscript defnining MyClass
I have also seen an approach using named functions and a
class method for setting the event handler which allows a developer
to pass some object to be used for scoping the named function but
this also results in the parameters for the callback being
predetermined by the actionscript that defines the class
function myLoad(arg) {
// the args passed to this function are also dictated by the
actionscript defining MyClass
var myObj:Object = new MyClass('foo', 'bar');
myObj.setOnLoadHandler(this, 'myLoad');
As far as I can tell, neither approach would let a developer
specify any parameters for the callback functions (onLoad() in the
first example, myLoad() in the second example). Which of these
approaches is considered 'best practice'? Also, what would I do if
I wanted to specify that the callback should operate on a
particular movieclip on my timeline? How can I pass that
movieclip's parameter to the callback function?

You can download the Library from this link. Inside is an example that shows how to handle windows messages/events.
http://zone.ni.com/devzone/cda/epd/p/id/4394

OIM11 event handlers: How to avoid firing the same code in both pre+post

Hi everyone,
I have a question around event handlers. My experiments so far have gleaned the following:
Manual updates of user form in admin interface -> Fires: pre-insert + Post-insert
Reconciliation trusted creates -> Fires: Post-insert
Reconciliation trusted updates -> Fires: pre-insert + Post-insert
Now I have various handlers that trigger to update fields coming in from trusted recon. Formatting telephone numbers, setting custom user attributes.. etc. I am using the same code in both the post and pre handlers as wherever the update comes from it needs to be processed in the same way. Problem is if a handler fires twice I can't be sure exactly how the system is going to behave (updating the same field again etc), never mind it is unneeded processing.
We have to keep the pre handlers because otherwise changes completed via the admin interface won't be seen until you refresh.
Can anyone please advice how to go about ensuring a handler is only fired once? i.e. if pre fires don't fire post. Have I missed something key here?
Edit: I know I've worded this badly. They will always fire as that's how OIM behaves, what I want is some way to work out in the underlying code if a field has already been modified in pre process... or something like it.
Thanks,
Wayne.
Edited by: wblacklock on 27-Feb-2012 05:38

I am sorry but I am not agree with your design.
However there is no chance to avoid this according to my knowledge. As both class has separate thread under different process, so there is no way to implement thread lock on entity operation.
Alternate way to acheive your requirement:
You can have hidden UDFs. Update hidden UDFs in prepost handler with some data (hardcoded).
"You can have the value this hidden filed like :- "NAME_UPDATE|EMAIL_UPDATED|MANGER_UPDATE"
Now in Post - Process handler check the value of hidden UDF.
Get the value of hidden UDF, tokenize with String Tokenizer. Check which filed is not updated in Pre handler.
*If it is already updated - do not update.* else Update.
Thanks,
Kuldeep

Event handlers - subscribed

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