What if I override a method on a particular screen.
For example: let's say Journal Transactions Screen, I've overridden the method Release(), I've made it to stop Posting Transactions on the General Ledger with that customization applied, when releasing a document on a screen that produces Journal Transaction Documents that also triggers auto-release, will the customization, the overriden method, will apply first?
From what I've seen, extensions are called first followed by base calls.
If you think the call order ambiguity might lead to errors with your specific code in the handler I'd recommend to explicitly declare and call the base method in the overridden method.
Using Acumatica customization project editor is the easiest way to get the declaration syntax down:
That way there's no doubt with the calling order:
public delegate IEnumerable ReleaseDelegate(PXAdapter adapter);
[PXOverride]
public IEnumerable Release(PXAdapter adapter, ReleaseDelegate baseMethod)
{
// Put your code before calling base
return baseMethod(adapter);
/* Or after calling base
IEnumerable returnValue = baseMethod(adapter);
// put your code to be executed after base here
return returnValue;
*/
}
Related
I need to add custom code to the logic which posts transactions on the GL 'Post Transactions' screen. After going through the T300 documentation and looking at the override of 'Release' to use as an example, I cannot find anything in the 'BatchPost' BLC that remotely resembles a posting process event/method that I can override. Where would I find that logic and what's the best way to add my custom code to the Posting process, batch by batch?
I think the best way to override posting process is to override PX.Objects.GL.PostGraph.PostBatchProc(Batch b, bool createintercompany)
All logic related to posting are located there.
Here is an example:
public class PostGraphExt : PXGraphExtension<PostGraph>
{
public delegate Batch PostBatchProcDelegate(Batch b, bool createintercompany);
[PXOverride]
public virtual void PostBatchProc(Batch b, bool createintercompany, PostBatchProcDelegate baseMethod)
{
//your code here
baseMethod(b, createintercompany);
//or here
}
}
I need to perform more action after the existing action is performed. For example, After Distribution > Sales Orders > Shipment > Action > Confirm Shipment, I need to populate all tracking numbers into another text box.
Please suggest.
The best thing here in my opinion would be to override the logic of the stock method. That will allow you to add your needed code without touching the base method as well as you being able to validate information before and after the base method is called.
In the case of your example, "Confirm Shipment" action ultimately executes the method "ConfirmShipment" which is defined as below:
public virtual void ConfirmShipment(SOOrderEntry docgraph, SOShipment shiporder)
{
.....
}
In order to customize the logic in here you have a few options.
Create an override method (added to the method queue, base called first then all 'override' methods)
Create an method that calls the stock one first, then your code. - this will in essence "replace" the stock logic but allow you to still call the base method. in doing this, you can run some checks before calling the base.
To do the second you would do the following
Create first the delegate in your code:
public delegate void ConfirmShipmentDelegate(SOOrderEntry docgraph, SOShipment shiporder)
Then define your override method:
[PXOverride]
public virtual void ConfirmShipment(SOOrderEntry docgraph, SOShipment shiporder, ConfirmShipmentDelegate baseMethod = null)
{
// Call our base method first if it exists
if (baseMethod != null)
{
baseMethod(docgraph,shiporder);
}
// Do my stuff here
}
Couple items to note here.
The definition has a third param to our delegate, this allows us to call the stock method and then do further work. It also tells the Acumatica framework our method should take priority over the stock method.
The stock method is called from the baseMethod call in the actual code.
Creating the extension this way allows for upgrades to occur without you having to totally redefine your method every time.
The second method would be just be an override of the stockcode. That is done with the following syntax
[PXOverride]
public virtual void ConfirmShipment(SOOrderEntry docgraph, SOShipment shiporder)
{}
When taking this approach, the stock method is first called, then your override method is called.
both of these would be handled in a graph extension defined as:
public class SOShipmentEntryExt : PXGraphExtension<SOShipmentEntry>
Before attempting either, I would look at the articles in the Wiki on PXOverride as they give further examples/situations for these
I tried to override an exisiting method but after i published I get this error.
Attempt by method 'Wrapper.PX.Objects.AR.Cst_ARPaymentEntry.ARPayment_RowSelectedGeneratedWrapper(PX.Objects.AR.ARPaymentEntry, PX.Data.PXCache, PX.Data.PXRowSelectedEventArgs)' to access method 'PX.Objects.AR.ARPaymentEntry_Extension.ARPayment_RowSelected(PX.Data.PXCache, PX.Data.PXRowSelectedEventArgs)' failed.
when I tried to remove the PXOverride attribute no error occured. I'm using 5.10.072 version.
[PXOverride]
protected void ARPayment_RowSelected(PXCache cache, PXRowSelectedEventArgs e)
{
}
The problem is that you try to override an event handler - not a common virtual method of the BLC. To do this one has to use a different approach. Namely, you need to declare the event handler without the PXOverride attribute, but with an additional argument of type PXRowSelected and then either call it or not based on your internal logic. Here is an example of such a declaration:
protected void ARPayment_RowSelected(PXCache cache, PXRowSelectedEventArgs e, PXRowSelected invokeBaseHandler)
{
/* your custom event handling logic here */
if(/* your custom condition may go here */)
invokeBaseHandler(cache, e);
/* some more of your logic here if needed */
}
Note that if you simply want your handler be executed along with the base one, you don't need the additional argument - simply declare the handler with your code and it will be called after the original handlers.
You may find much more information and explanatiions on this topic in the help article located under Help > Customization > Examples of Functional Customization > Adding or Altering BLC Event Handler in any instance of Acumatica.
I'm having trouble synchronising my GEF editor with the EMF-based model. I think this is due to the fact that the model-internal EMF Adapter, or rather the methods it calls, aren't finished before the editor's Adapter's notifyChanged() is called and updates the model children. This leads to the editor view being out-of-sync with the model itself, or rather, the changes to the model not being represented in the view when they should be.
Consider this set up. A Command "CreateNodeCommand" adds a node to the underlying model:
#Override
public void execute() {
...
getNewNode().setGraph(getGraph());
...
}
The GraphEditPart has an internal class extending org.eclipse.emf.common.notify.Adapter. It's notifyChanged() method is indeed notified, as tested similar to below (incomplete code):
#Override
public void notifyChanged(Notification notification) {
switch (notification.getEventType()) {
case Notification.ADD:
System.err.println("ADD occurred!");
refreshChildren();
}
The problem is, that the (third-party) model itself also implements an Adapter, which in turn runs a number of methods on the new model element, such as adding an ID, etc.
It seems to me that the fact that the new element's figure doesn't show up in the editor directly after it's been created - but only after the next editing step, the figure for which then doesn't appear - suggests that the model adapter is still busy setting up the new element while refreshChildren() is already being called by the editor adapter.
This seems to call for synchronisation, but I'm unsure whether this can be achieved with built-in Java functionality for multithreading, or calls for an EMF-based approach.
Please share your knowledge about synchronising in EMF.
Many thanks in advance!
EDIT
On request, here is the source code for the getModelChildren() method:
#Override
protected List<EObject> getModelChildren() {
List<EObject> allModelObjects = new ArrayList<EObject>();
allModelObjects.addAll(((MyGraph) getModel()).getTokens());
allModelObjects.addAll(((MyGraph) getModel()).getNodes());
return allModelObjects;
}
Debugging the (3rd party) model, I found out that the Graph's enotify() fired the notification before the actual adding took place, hence my Adapterreceived the notification too early, i.e., before the node had been added.
The notification is now called after the add and everything works fine.
Thanks for all of your help!
Try extending EContentAdapter instead of AdapterImpl, and not forget to call
super.notifyChanged(Notification notification);
in it. It's an adapter, which will add itself to new elements of the model, and notify you then they are changed.
I'm having issues with my Application Object. I am currently using a Service to simulate incoming data from an electronic game board. This data is represented as a 2D boolean array. Every five seconds the Service uses a method of the Application Object to update the array (setDetectionMap()). This array is being read by a Thread in my main Activity using another method (getDetectionMap()). After some debugging I am almost positive that the main Activity is not seeing the changes. Here is the code for my Application Object:
public class ChessApplication extends Application{
private static ChessApplication singleton;
private boolean[][] detectionMap;
public static ChessApplication getInstance(){
return singleton;
}
#Override
public void onCreate() {
super.onCreate();
singleton=this;
detectionMap=new boolean[8][8];
}
public boolean[][] getDetectionMap(){
return detectionMap;
}
public void setDetectionMap(boolean[][] newMap){
detectionMap=newMap;
Log.d("Chess Application","Board Changed");
}
}
I've checked my Manifest, I've rewritten my object declaration a dozen times, I've added LogCat tags to make sure that the code is executing when I think it should be, and I've even implemented the supposedly redundant Singleton code. Any ideas what could be causing this? Incidentally can anyone tell me how to view variable states as the activity is running? Thanks in advance.
Is your Activity calling getDetectionMap() to get the new map after the update occurs?
Because otherwise, it's holding onto a reference to the old boolean[][] array, wheras setDetectionMap(...) isn't actually updating the current data structure, it's just updating the "detectionMap" variable to point to a different one. As such, your main activity won't be aware of the swapout until the next time it calls getDetectionMap.
Easy fix: in setDetectionMap, manually copy values from newMap into detectionMap. Or, update the Activity's reference so it's looking at the right map.
One other observation entirely unrelated to the original question: It's quite unusual to override Application during Android development, and is usually considered a "code smell" unless you have a really good reason for doing so. In this case I imagine it's so that you can communicate between your service and Activity, but you create a middle-man where one isn't entirely necessary. Here's a useful SO thread on how to communicate directly between the two :)