Notification custom callback function

Hi,
I want use a custom callback function instead of the default wf_engine.cb.
Can someone tell me how to proceed?
Thanks.

Hi Dany,
Is your scenario is where you have a custom application and want to complete that application process using the callback function? In such cases, you should be using the callback function.
You should the Notification APIs to send such notifications. The Notification Send API includes a parameter for the Custom Callback function.
The Notification API section of the workflow guide also documents the signature and other details of a custom callback function.
Workflow also provides a Post Notification Function api which could perform back-end logic to either validate the legitimacy of the forward/transfer or execute some other supporting logic.
Hope this helps,
Raja

Similar Messages

How to implement a callback function using LabView's Call Library Function Node?

I am trying to call a fuction from a SDK.dll library using the Call Library Function Node. The SDK was provided to
me and I do not have the source code, just the .dll and .h files.
The SdkSetPropertyEventHandler function has a callback fuction as one of its parameters. How do I implement the
callback using the CLF node? I am a good LabView programmer but this is my first time using the Call Library
Function Node. I have read all the info I can find on NI's web site and the discussion board but cannot figure
this one out. I am using LabView 8.6.
The SDK.h deacribes the function as:
// Function:   SdkSetPropertyEventHandler
SdkError SDKAPI SdkSetPropertyEventHandler(
            SdkCameraRef                    inCameraRef,
            SdkPropertyEvent                inEvnet,
            SdkPropertyEventHandler         inPropertyEventHandler,
            SdkVoid*                        inContext );
// Description:
//       Registers a callback function for receiving status
//          change notification events for property states on a camera.
// Parameters:
//       In:    inCameraRef - Designate the camera object.
//              inEvent - Designate one or all events to be supplemented.
//              inPropertyEventHandler - Designate the pointer to the callback
//                      function for receiving property-related camera events.
//              inContext - Designate application information to be passed by
//                      means of the callback function. Any data needed for
//                      your application can be passed.
//      Out:    None
// Returns:    Any of the sdk errors.
A separate header file called SDKTypes.h contains the following data:
typedef SdkUInt32 SdkPropertyEvent;
typedef SdkUInt32 SdkPropertyID;
typedef void       SdkVoid;
typedef struct __SdkObject*    SdkBaseRef;
typedef SdkBaseRef    SdkCameraRef;
SdkPropertyEventHandler
typedef SdkError ( SDKCALLBACK *SdkPropertyEventHandler )(
                    SdkPropertyEvent        inEvent,
                    SdkPropertyID           inPropertyID,
                    SdkUInt32               inParam,
                    SdkVoid *               inContext );
Thanks for your help.
Alejandro
Solved!
Go to Solution.

alejandroandreatta wrote:
I am trying to call a fuction from a SDK.dll library using the Call Library Function Node. The SDK was provided to
me and I do not have the source code, just the .dll and .h files.
The SdkSetPropertyEventHandler function has a callback fuction as one of its parameters. How do I implement the
callback using the CLF node? I am a good LabView programmer but this is my first time using the Call Library
Function Node. I have read all the info I can find on NI's web site and the discussion board but cannot figure
this one out. I am using LabView 8.6.
Basically you do not do that. LabVIEW does not know pointers and certainly not function pointers. What you should do instead is writing a C DLL that implements the callback and also exports a function to be called by LabVIEW that translates between the callback and a LabVIEW user event. Look for PostLVUserEvent() here on the NI site to find examples how to do that.
Rolf Kalbermatter
Message Edited by rolfk on 02-11-2009 08:00 PM
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions

C++: Is it possible using callback function with ncacn_http and rpcproxy server ?

I have a remote procedure and I can call it using http over rpc. I pass trough an rpc proxy server for arriving to my rpc server.
But I cannot call a callback function to my client inside the server function.
Is it possible using callback function with ncacn_http and rpcproxy server ?
We are using IIS on windows server 2008 R2 and the server rpc and the client on the same PC with rpc rpoxy.
If I use ncan_ip_tcp all works fine.
Thanks
Gianluca

Hi,
About the develop question please post to the MSDN forum.
MSDN forum Developer Network
http://social.msdn.microsoft.com/Forums/en-US/home?forum=WAVirtualMachinesVirtualNetwork&filter=alltypes&sort=lastpostdesc
Thanks for your understanding and support.
We
are trying to better understand customer views on social support experience, so your participation in this
interview project would be greatly appreciated if you have time.
Thanks for helping make community forums a great place.

Callback Function in AQ not launched

Hi All,
I have registered a callback function on a queue. When I enqueue it has to call callback function. Below is my scrip for creation of Queue and Enqueue.
CREATE type xxMessage_typ as object
    ( subject VARCHAR2(30), text VARCHAR2(80));
=================================================
BEGIN
SYS.DBMS_AQADM.CREATE_QUEUE_TABLE(
                  QUEUE_TABLE           => 'XXKNL_TEST_QTAB'
                 ,QUEUE_PAYLOAD_TYPE    => 'xxMessage_typ'
                 ,MULTIPLE_CONSUMERS    => TRUE);
END;
===============================================
BEGIN
SYS.DBMS_AQADM.CREATE_QUEUE(
                  QUEUE_NAME          =>   'XXKNL_TEST_Q'
                 ,QUEUE_TABLE         =>   'XXKNL_TEST_QTAB'
END;
============================================
BEGIN
dbms_aqadm.add_subscriber
        ( queue_name => 'XXKNL_TEST_Q',
          subscriber => sys.aq$_agent( 'RECIPIENT', null, null ) );
SYS.DBMS_AQ.REGISTER ( SYS.AQ$_REG_INFO_LIST( SYS.AQ$_REG_INFO('XXKNL_TEST_Q:RECIPIENT',DBMS_AQ.NAMESPACE_AQ,
               'plsql://XXKNL_NOTIFYCB',
                HEXTORAW('FF')
          1
END;
===================================
BEGIN
SYS.DBMS_AQADM.START_QUEUE
    QUEUE_NAME => 'XXKNL_TEST_Q'
   ,ENQUEUE => TRUE
   ,DEQUEUE => TRUE
END;
==========================================
DECLARE
enqueue_options dbms_aq.enqueue_options_t;
     message_properties dbms_aq.message_properties_t;
     message_handle RAW(16);
     message xxmessage_typ;
BEGIN
       message := xxmessage_typ('NORMAL MESSAGE', 'This is my Q..' );
       dbms_aq.enqueue(queue_name => 'xxknl_test_q',
                      enqueue_options => enqueue_options,
                      message_properties => message_properties,
                      payload => message,
                      msgid => message_handle);
end;
========================================================
create or replace procedure xxknl_notifyCB( context raw,
                                          reginfo sys.aq$_reg_info,
                                          descr sys.aq$_descriptor,
                                          payload raw,
                                          payloadl number)
    as
     dequeue_options dbms_aq.dequeue_options_t;
     message_properties dbms_aq.message_properties_t;
     message_handle RAW(16);
    message xxmessage_typ;
   BEGIN
      dequeue_options.msgid := descr.msg_id;
      dequeue_options.consumer_name := descr.consumer_name;
      DBMS_AQ.DEQUEUE(queue_name => descr.queue_name,
                      dequeue_options => dequeue_options,
                      message_properties => message_properties,
                      payload => message,
                      msgid => message_handle);
      insert into xxknl_test values
      ( 'Dequeued and processed "' || message.text || '"' );
      COMMIT;
   END;
Please let me know if something is missed.
Thanks
Rishi

Hi,
Kindly check below;
AQ PL/SQL Notification: PL/SQL Callback and Email Notification (Doc ID 225749.1)
Also let me know if there are any Q0** or J0** traces generated.
Thanks,

Call Java Method from Callback function

I am writing a JNI wrapper in c++ for a particular event driven DLL. The DLL makes a network connection to another device and then calls a callback function when events are raised on the device. The DLL has 3 basic functions: connect, disconnect, and registerEventListener. RegisterEventListener takes a function pointer which is called each time an event is raised on the device.
My wrapper DLL exposes connect and disconnect functions via JNI. I can call these functions just fine from my Java code. Now the question... How do I call a Java method from my c++ callback function? I can call a Java method using env->CallXXXMethod(...) from within a function that is accessible to Java but I don't have access to the JNI parameters in my Callback function.
So how do I call a Java method from a callback function? If this cannot be done then what is the "right way" to handle native event notification with JNI?

jschell wrote:
JNI parameters? Meaning what exactly?
General outline of a callback
1. Entry
2. Get the VM, env - there are methods for this
3. Attach the thread
4. Get a java object - how depends on what you are doing, but create it or a static reference.
5. Get the java method
6. Call the java method.That is exactly correct. The callback function is called from a separate thread so using a cached pointer to JNIEnv, obtained from the original native method, crashes the JVM. The jmethodID and jclass objects (which are needed to call the static Java method) can be cached without problem. The following is the code I used to attach the current thread and call my static method.
void MyClass::onEvent(int system_id, char* data)
     //get a pointer to the Java Environment
     JNIEnv *env;
     jvm->AttachCurrentThread((void **)&env, NULL);
     //Call the Java method with the newly aquired data
     jstring js = env->NewStringUTF(data);
     env->CallStaticVoidMethod(cls, mid, system_id, js);
}My last question is about cleanup in this function. When I use NewStringUTF to "convert" my char* to jstring do I need to do anything special to clean up or will the Java garbage collector take care of it since the jstring is being passed to a Java method?
Thanks for you help

How do I pass a com object to a callback function

I am trying to program the PCI-6527 card within a COM object. With the DIG_Change_Message_Config command I'm setting the notification for when the input signal changes using a callback function. To make the callback function work I have to declare that function as a static member of the object class. This means that I have no access to the this pointer in this function. After I receive the notification, my actions in the callback function depend on settings in member variables in the class. MSDN gives as a solution to pass the this pointer as an argument to a static member function to have access to the class. I've tried this but the compiler keeps barfing at me.
The code used is:
stat = DIG_Change_Message_Config(
m_CardNum,1, msg,"",0,0, (unsigned long)DealWithInput );
with DealWithInput defined as: static void DealWithInput();
Is there a way of getting access to the class in DealWithInput either by passing it as an parameter or through some other ingenous trick that I can't find documentation for

The thing is that you cannot change the parameters of the callback functions. It is always :
void yourCallbackFunc (DAQEventHandle handle,
DAQEventMsg msg,
DAQEventWParam wParam,
DAQEventLParam lParam);
When yourCallbackFunc is called back, all the parameters get filled in the calling function in DAQ driver. What you have to do is pass the this pointer in message parameter in DIG_Change_Message_Config function, so that whatever you pass in message gets passed back in your callback function. Message can be any type.

Registering AQ Callback function

Can Oracle-8.1.7 which is installed on a Sun-Solaris machine send a notification to a WindowsNT callback function?
I am using OCI for receving notifications from AQ.
If I have Oracle and the Client application running on the same Operating system then everything works fine.
If I run Oracle on Sun-Solaris, and the Client application on WindowsNT, then the client application is NOT able receive notifications from AQ.

Hi,
Kindly check below;
AQ PL/SQL Notification: PL/SQL Callback and Email Notification (Doc ID 225749.1)
Also let me know if there are any Q0** or J0** traces generated.
Thanks,

How to create a callback function module

Hi all,
I am working in a requirement where we need to call a function module at a 'after change' event. So how to create a callback function module and register it with the crmvevent ?_
I created a sample function module and try to create entries in table crmv_event_cust, but i got an error message saying that the function module name I provided is not in table CRMC_FUNC_ASSIGN. When I try to create entry there, I got a message that function module is not in CRMC_OBJ_FUNC and that table is a standard table with no maintanance options !!
looks like i am going in wrong way ... can any one please help ??

Looking at my system all you need to do is create the entry for the callback function in maint view: CRMV_FUNC_ASSIGN.
Your entry should be as simple as Z-function name Object Function - <same as others in the segment you are assigning>
IE for the partner it would be CRM_PARTNER as object function, for general order processing CRM_ORDER
Take care,
Stephen

How to Implement custom share functionality in SharePoint 2013 document Lib programmatically?

Hi,
I have created custom action for Share functionality in document library.
On Share action i'm showing Model pop up with Share form with addition functionality.
I am developing custom share functionality because there is some addition functionality related to this.
How to Implement custom share functionality in SharePoint 2013 document Lib pro-grammatically?
Regards,
- Siddhehswar

Hi Siddhehswar:
I would suggest that you use the
Ribbon. Because this is a flexible way for SharePoint. In my project experience, I always suggest my customers to use it. In the feature, if my customers have customization about permission then i can accomplish this as soon
as possible. Simple put, I utilize this perfect mechanism to resolve our complex project requirement. Maybe we customize Upload/ Edit/ Modify/ Barcode/ Send mail etc... For example:
We customize <Edit> Ribbon. As shown below.
When user click <Edit Item>, the system will
render customized pop up window.
Will

Is it possible to throw a BPELFault from a custom xpath function?

I'm probably revealing my lack of java chops here, but I'd like to know if there's a way to throw a BPELFault from the "call" method within a custom xpath function.
The interface for IXPathFunction seems to dictate that "call" throws only an XPathFunctionException and the bpel server doesn't handle this exception properly. It records the exception in the logs but then the process just dies.
Right now I have this (simplified code):
public Object call(IXPathContext context,
List args) throws XPathFunctionException
if (args.size() == 1)
// do some stuff and return a value
throw new XPathFunctionException( "hexToInt() requires one string argument." );
What I want to have is something like this:
public Object call(IXPathContext context,
List args) throws BPELFault
if (args.size() == 1)
// do some stuff and return a value
BPELFault fault = new BPELFault(
new javax.xml.namespace.QName("http://schemas.xmlsoap.org/ws/2003/03/business-process/",
"selectionFailure"));
fault.setPart("code", "intToHex");
fault.setPart("summary", "hexToInt() requires one string argument.");
throw fault;
If I do this, the compiler rejects it saying that "call" must throw XPathFunctionException. Is there a way to extend the IXPathFunction interface to allow it to throw a useful fault?
Thanks!
Sean

Yeah, I'm using that patch (otherwise the process just crashes and you don't have a chance to catch the fault, even in a catchAll). Within the catchAll you can get the details from the error with something like this:
<copy>
<from expression="concat(ora:getFaultName(),'')"/>
<to variable="processFault" part="payload" query="/ns4:summary"/>
</copy>
<copy>
<from expression="concat(ora:getFaultAsString(),'')"/>
<to variable="processFault" part="payload" query="/ns4:detail"/>
</copy>

How can I call a custom javascript function when clicking on cfgrid cell.

I would like to call a custom javascript function when
clicking on a cell in an cfgrid (of html format). The closest thing
I can find is to use the HREF="" attribute, but it doesn't seem to
work with javascript inside it.
Simple example:
<cfgridcolumn name="Foo" header="Foo"
href="javascript:customFunction(#ID#);">
Do I need to tap into the underlying Ext JS funtionality? If
so, where can I start?
Thanks!

Hi,
According to your post, my understanding is that you want to hide/show list columns based on specify the permission for Users, SharePoint Groups or Active Directory Groups.
Here is a solution from CodePlex for your reference:
SharePoint 2013 Column & View Permission
https://sp2013columnpermission.codeplex.com/
Best Regards
Dennis Guo
TechNet Community Support

Calling a method from a callback function under ARC

Hi All
I previously wrote some HIDManager software. The HIDManager references were done in a Objective C class so within this object you have the code:
    IOHIDManagerRegisterDeviceMatchingCallback( k8055HIDManager, k8055BoardWasAdded, (__bridge void*)self );
Which registers with the HIDManager
The Callback function which is outside the class was as follows:
static void k8055BoardWasAdded(void* inContext, IOReturn inResult, void* inSender, IOHIDDeviceRef k8055HIDDevice)
    IOHIDDeviceOpen(k8055HIDDevice, kIOHIDOptionsTypeNone);
    CCVellemanK8055Driver * k8055 = (__bridge CCVellemanK8055Driver *)inContext;
    [k8055 setHardwareConnectionStatus : YES];
Any how my problem is in converting the code to ARC as under OS X 10.9 SDK and 64bit I'm now getting a EXC_BAD_ACCESS (Code=EXC_I386_GPFLT) at this line
    CCVellemanK8055Driver * k8055 = (__bridge CCVellemanK8055Driver *)inContext;
although removing the method
[k8055 setHardwareConnectionStatus : YES];
will alow it to build but then obviously the app won't work as required.
Could someone suggest a ARC safe way of accessing the passed instance so I can again call methods on it.
Cheers
Steve

Try using blocks instead. This is the callback I am using for libcurl.
static size_t callback(
void * contents, size_t size, size_t nmemb, void * context)
size_t (^block)(void *, size_t) =
    (__bridge size_t (^)(void *, size_t))context;
size_t result = block(contents, size * nmemb);
return result;

Error while creating Custom Defined Functions in Essbase

Hi All, I am trying to create CDF(Custom Defined Functions) in Essbase. Iwant to create a function which take list of child member andreturn the first child. For this, i have created a java file called"ChildAccess.java" which contains the following code: public class ChildAccess { public static char GetFirstMember(char [] members) { return members[0]; } } I have compiled and made jar file called"ChildAccess.jar" and pasted it at"ARBORPATH/java/udf". Then i restarted the Essbase Serverand run the following MaxL command to register the function create or replace function '@ChildAccess' as 'ChildAccess.GetFirstMember' spec '@ChildAccess(memberRange)' comment 'adds list of input members'. Till here i am not getting any error but when i am using thisfunction in my calc script as given below FIX(@ChildAccess(@CHILDREN("Abc"))) it gives the following error "Error:1200414 Error parsing formula for [FIX STATEMENT] (line 2)"argument[1] may not have size[6] in function[@CHILDREN]" NOTE: The SIZE[6] is giving the no. of child in member"ABC". Thanks in Advance Arpit

If you want to use the CDF in a FIX statement you need to make sure that it returns a member name rather than a number: public class ChildAccess { public static String GetFirstMember(String[] members) { return members[0]; } } I prefer to define the function against a specific application rather than globally because you only need to restart the application in order to pick-up any modifications to the .jar file. So the MaxL function definition would be: create or replace function appname.'@_GETFIRSTMEMBER' as 'ChildAccess.GetFirstMember(String[])'; and in the calculation script the FIX statement would become: fix ( @member( @_GetFirstMember( @name( @children( "Abc" ) ) ) ) ) This looks a little messy so you can use a macro to simplify it: create or replace macro appname.'@GETFIRSTMEMBER'(single) as '@member( @_GETFIRSTMEMBER( @name( @@1 ) ) )' SPEC "@GETFIRSTMEMBER(memberRange)"; and then the FIX statement could be written: fix( @getfirstmember( @children( "PRODUCT" ) ) )

Bpel Server Does Not Catch Exceptions Thrown By Custom Xpath Functions

Hi.
I am using some custom xpath functions in a bpel process and whenever they fail I get an XPathExecutionError with summary:
XPath expression failed to execute.
Error while processing xpath expression, the expression is "<my function>", the reason is FOTY0001: type error.
Please verify the xpath query.
I am forcing my function to fail by giving a wrong input, which should result in an XPathFunctionException("Input does not respect format").
There is a note on Metalink with ID 458434.1 on this subject which says that patch 5926809 should fix my problem.
Patch 5926809 fixes Bug 5926809 - ORA:PARSEESCAPEDXML XPATH EXPRESSION FAILED TO EXECUTE FOTY0001: TYPE ERROR.
I am using it, but it does not work :(
I am using version 10.1.3.3.0 of App Server with various patch sets, including fix for bug 5926809.
Has anyone suggestions on how to overcome this problem?
Thanks

Hello,
I am trying to add a custom xpath function to the BPEL server, and I see that you made it work. I am using Oracle SOA Suite 10.1.3.3 and jDeveloper 10.1.3.4. I am using this function inside an xsl mapping file, although I am able to compile and deploy the Bpel Process to the server, it stops mapping where I placed the function and I have not seen any meaningful message from the domain/log/ files.
Can you tell me how you did it?
I think you will tell me faster than Oracle support, I already placed an SR but they just give me superficial advice.
I appretiate your time and advice,
Guillermo

How to change the Callback function of a GUI button?

I would like to change the callback function associated with a GUI button dynamically in the programming way.
Here is the code piece I tried, but it does not seem to work:
const char* pstrLabelSaveJpeg = "SaveJpegCb";
SetCtrlAttribute(pahel_id, ctrl_id ,ATTR_LABEL_TEXT, pstrLabelSaveJpeg);
int CVICALLBACK SaveJpegCb(int panel, int control, int event, void *callbackData, int eventData1, int eventData2);
Solved!
Go to Solution.

The attribute you used is about the "label" of the button.
It is just an appearence attribute. You can write your own name on it, but that does not change the callback function.
You should change the ATTR_CALLBACK_FUNCTION_POINTER attribute, and you should not pass the function name as a string.
So your function call will look like this:
SetCtrlAttribute(pahel_id, ctrl_id, ATTR_CALLBACK_FUNCTION_POINTER, SaveJpegCb);
Of course, you have to declare the SaveJpegCb function somewhere above that line.
I think you have already done that.
S. Eren BALCI
www.aselsan.com.tr

Notification custom callback function

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