Wat is mean by CAll Back operation

hi
i want to know wat is mean by
RMI call back operations
and dynamic stub class loading
thanx
bye

Callback: This is a typical way that a client, which has made a call to server code, can later be notified of some event that the server has experienced.
Some simple examples:
o A holder of a list of files is notified by the operating system that someone else has changed the files that exist.
o Some kind of a process monitor notices an "alarm", and passes the info to a display application.
Remote operations - including things implemented in RMI - can use the same idea: a client makes a call to a server, and later on the server notifies the client of some event.
Generally, it means that the client passes to the server some kind of a reference to a client object so that the server can "call back" the client.

Similar Messages

Human task flow call back events with external web service

Hi All,
I have a requirement to call webservice inside human task flow. I have three participant in my human task flow. Let suppose A, B and C. When A approves then task will be assigned to B and when B approves it will go for C.
My requirement is that, when A approves , then i need to call one external webservice to update database. For this i have enabled call back events from human task flow.
In this way i got while loop inside my BPEL. In onTaskAssigned operation i am now trying to call external web service. My requriment is to call external service and get data from service. After getting response from the webservice, i want to assign it to next participant.
But in this case, when user B approves, it goes to onTaskAssigned block and i am able to make external web service also but mean time, it has been assigned to User C which i do not want.
I want Human task flow to wait for the web service response then only assign it to next participant.
Please help.
Regards,
Sunil

Hi Sunil
Have you tried using WebServices Adapter. The usecase seems pretty straight forward. You have a WebService that has some code and some Operations to update some Database. First thing, I hope you have methods/Operations defined with request and response xsd for each operation.
Now you define the main master payload, that should have all elements specific to your process and also few elements to store the output coming from each operation. Because response of each operation may need to go to other Task and get saved in the Payload also.
You have like 3 Tasks. To complicate, I will assume that each Task can either Approve or Reject. And last 2 Tasks gets data from payload, previous task and also output from the WebService Operation (method).
Task A -> Xor Gateway (Approve/Reject) -> If Approve -> Call WebServices Adapter -> Task B -> Xor Gateway(...) -> ......
At each intersection, you can map the attributes for incoming and outgoing. Based on WebServices output also, you can have Another XOR Gateway and decide to send to Task B or do something else. So combinations of outputs of each service (task or webservice adapter) and XOR gateways, you can have a decent control on the overall flow.
Note: I am hoping the webservices is Synchronous where you get the response immediately.
Let me know if I am missing something.
Thanks
Ravi Jegga

Ongoing problems - Would like to request a call back

Hi all,
I have quite a tale to tell you, and am reaching out for assistance by somebody that has authority to make decisions Once my account and case ID have been reviewed I would like a call back at the number on file. Thank you!
1/11
I ordered an Open Box NS-50D550N and specifically chose to pay a bit extra for the "Certified - Excellent" version of the product. It was my understanding this means a Geek Squad member has reviewed the TV, ensured everything works, and ensured all accessories are included in the box per this page: http://www.geeksquad.com/certified-openbox.aspx. Very excited for a big screen TV!
1/13
I received the TV and unfortunately no screws were included for the stand, no screws were included for wall hanging (New version of this product includes them), and there was a big puncture hole that went through both boxes, through the packing foam, and hit the screen. I called the 888 number and was told by a representative that "Unfortunately open box items are sold as open box due to the fact that they may be missing parts and accessories". When I pointed out that the item I purchased was "Certified - Excellent" and that I purposely chose this version because I wanted to avoid these problems, I was told the only thing I could do was return the TV for a refund.
That would have been fine if I didn't want this TV, but I did and unfortunately there were no other open box versions of this TV available. I was basically being told "tough luck there's nothing we can do but give you your money back". When I pointed out that I wanted a TV, not my money back, and that surely there's something they can do I felt like I was continuing to hit a brick wall. "No there's nothing we can do".
I then noticed that this TV was on sale "new" for $399. I pointed this out and said could I get a credit for the difference since I did not receive a "certified excellent" version of this TV (it did include the "certified" tape all over the box though!). I was told to hold on, then when they came back they said they issued me a $30 gift card.
"Great!" I thought. But, unfortunately this card has to come in the mail, I could not get the number over the phone or be issued an e-gift card, so I could not use it to immediately discount the cost of a new TV. Sort of worthless as I would miss the sale! When I pointed this out I was again told there was nothing they could do.
I was getting ticked off at this point because I felt like I am really trying to give Best Buy my money and they just don't want to work with me at all! I asked to speak to a supervisor. "Emily the supervisor" came on the line. I explained my situation and she seemed to understand! I felt like I was getting somewhere finally! She said she would issue an immediate $32 credit to my credit card in order to offset the cost of the Open Box I purchased ($367) with a new version of this TV ($399). I could then return the Open Box for a full refund and enjoy my new TV at the cost of the "Geek Squad Certified Open Box" I was supposed to have gotten.
Awesome! I was overjoyed with the news and thanked her for the support. I told her I wanted UPS to pick it up as we live a bit far from a store and it would just be more convenient. She told me that would be no problem, that she issued a refund and to wait 24 hours for my paperwork to come in my email.
1 hour and 15 minutes on the phone with 1-888-BEST-BUY
1/14
UPS shows up with the label. Unfortunately I had not received any RMA information in my email though. I called the 888 number again and I was told to not give the TV to UPS until I receive my RMA information in my email. Day after that (1/15) - UPS shows up, no RMA info in my email. Called again and told to not give it to them.
In the mean time I had ordered my new TV for local pickup the night I spoke with emily (1/13) and had my wife swing by and get the box. I get home and unfortunately she didn't notice the huge puncture mark on the front of the box. I packed the TV back up and took it back to the store to swap it out with one that wasn't skewered by a fork lift. Got that guy back home and decided I would set him up tomorrow.
22 minutes on the phone with 1-888-BEST-BUY
1/15
I give the 888 number a call again and tell them I still have not received any RMA information but that UPS continues to try to pick the TV up and bring their own tag. The representative tells me I might have better luck just taking the TV back to the store to return it there.
So, I decide to do that. First though, let's check out my new TV! I get it out of the box, plug it in, and the screen is completely shatered. Frustration!!! I pack my 2nd new TV up and the Open Box up and take it to the store that night. I wait in line, talk to the rep at customer service and tell her I need to return this open box and swap out this new TV for a third new TV.
The TV manager wants to see the screens for both before processing the return and exchange. I tell him that's fine no big deal. They pull the open box TV out and plug it in, and much to my surprise that screen is shattered too, exactly where the hole was in the box! So not only was my "Certified - Excellent" TV missing parts, but was also broken. Ugh! He plugs my 2nd new TV in and also verifies that screen was shattered.
The customer service rep starts with the return for the Open Box. Types in the order information, and the system wants to give me a refund for $367, the cost of my open box, minus the $32 I was already credited. I explain to her that "Emily the supervisor" credited me an extra $32 to make up for the price difference between the open box and the new TV. She goes and gets the manager, and he explains to me that the system will not allow him to give me the full refund and I need to contact the 888 number to get it straightened out. More frustration!!!
I call up the 888 number, talk to several people, and finally land with a supervisor in the Home Theatre department. She explains to me that what Emily told me is wrong, she had no authority to do that, it was impossible for me to get an extra $32 on my credit card, and a refund for the price of the open box minus the $32 was the best they could do in her department. She then tells me I need to discuss this further with the "back office" department and sends me back there.
I speak with that representative, and she tells me I need to send it back to bestbuy.com through UPS. I explain to her the problems I have been having with receiving the RMA information in my email. She tells me (paraphrased) "Oh no! When you have UPS pick up you won't get an extra emails from us They bring the tag and thats all you need!" ........
3 days of phone calls, several different reps, and she's the first one to tell me I won't be getting an extra email. Extreme frustration!!!!
I then explain to her the issues with the extra $32 credit. She looks and tells me as best as she can tell if I return the TV to them I will get my full refund for $367 + tax and be allowed to keep my extra $32 credit. I tell her great, lets get this return going and she tells me UPS will be out to my house tomorrow (1/16).
I then get my third new TV and the open box back on the dolly and back in my car.
1 hour and 20 minutes on the phone with 1-888-BEST-BUY. 2 and a half hours in the store.
1/16
I've plugged my new TV in today and everything looks great finally! My concern is, at this point, I have no idea what I am getting back on my card when you guys finally receive my open box TV. I can tell you I want what was promised to me though, a full refund plus I be allowed to keep the $32 already credited back.
If this is not standard procedure, I feel like the ~3 hours I have spent talking to customer service reps, plus the 2.5 hours I spent in the store last night, and the 4 TV's I have hauled around the house and the car allows me to expect the $32.
It's more the principle of the matter at this point.
Thanks for reading!

Hi russ01,
I have now gotten this order refunded and you should see your funds in the near future. I am also sending you a private message with additional details. To check your messages log into the forum, and then click on the letter icon in the upper right-hand corner of the page.
Thanks,
Allan|Senior Social Media Specialist | Best Buy® Corporate
Private Message

Adobe is giving me the runaround when all i want to do is download the programs i bought several years ago. Anyone else experience this? Contacted support, was told i would get a call back. Account blocked so I had to create a new one to download trial v

Adobe is giving me the runaround when all i want to do is download the programs i bought several years ago. Anyone else experience this? Contacted support, was told i would get a call back. Account blocked so I had to create a new one to download trial versions to compete my work. So frustrated.

You will need to have the serial number to activate the products. Please have then handy & also check the compatibility of the operating systems.
Regards
Rajshree

OSB is staless and how it achieves Asychnorous call back

Hi All,
I got to know OSB is statless and BPEL is stateful and hence it supports Asynchronous Call back reliably with Correletaion ID which is also
supported in Oracle Enterprise Service bus and it is now knows as Mediator in 11g.
The question I have is
A) Since OSB is stateless which means we can't implement Asynchronous call back kind of integration pattern.
B) If my proxy service has to call WebService Asynchronopusly and don't wait for the response continue with the rest of the
execution once the response get's received from the web service it has to send the details to the source.
I am indeed aware of one particular indirect approach is this kind of stuffs could be achieved in JMS queues by means of correlation IDs by
means of using two queues one for request and another for response.
If anyone had a better suggestion/thoughts please do provide the same at the earliest.
Many Thanks,
Dini

You may also consider the approach discussed here -
http://blogs.oracle.com/knutvatsendvik/entry/oracle_service_bus_asynchronous_message_processing
http://biemond.blogspot.in/2011/02/building-asynchronous-web-service-with_27.html
Regards,
Anuj
Edited by: Anuj Dwivedi on Feb 10, 2012 6:01 PM

"Call back" dial up internet? Help!

Hello and help! I'm in Ukraine trying to use dial up internet in my apartment. Dial up in Ukraine is done by buying a card that provides you with a pin code that you use to make an account with a third party provider. The time you spend on the itnernet is "pre paid" in essence and when you run out of time
you buy a new card and scratch off a new code.
There are two ways to connect. The first is to dial straight into their server from your computer/phone line (which means you have to pay for the phone time since you're the one who dialed out and this can get expensive). The second option is called "call back." "Call back" meands my computer dials the company then the company dials me right back with an internet connection that I start using. I have been trying to get call back set up for days and
have not succeeded. HELP!
The name of the service I am using is called Superweb (ww.superweb.com.ua/eng). I am trying to dial the 251 1212 number. I am using pulse setting. The error message I'm getting is "Could not negotiate a connection with the remote PPP server. Please verify your settings and try again."
The directions which the company normall gives to PC users are to go into "network" settings, go to "advanced", then "dial up preferences," check off "callback" and then type in the number (not sure if they mean the number I'm calling 215 1212 or my land line number but easy enough to try both).
Please, please help me solve this. Where is the call back option on a mac?
Thanks. I can't wait to hear from you.
More technical details: I have the first generation of the white 12 inch iBooks. I am running Tiger (no updates just original version).

hi ,
access the setup page of the router using http://192.168.1.1 "admin" is the password....go to the wireless section and then to advanced wireless settings.....
turn "off" the AP isolation...reduce the Beacon interval to 50 and reduc the RTS and fragmentation threshold by 40 each....
let me know if this works.

Decline calls in lock mode is not appearing on screen to call back the same numbers.

Hi,
After updating IOS 7 on my iphone 4.
Decline calls in lock mode is not appearing on screen to call back the same numbers.(Ex.. Phone is in lock mode when calls comes we will decline the same by double click the power button, But same call number R contact is not appearing in screen to call back them, & Aslo now it is very very slow.. Kindly Help the same.. )

So then this means your Energy Saver preferences are corrupted somewhere. I would at least backup your data in case something else gets corrupted by a damaged directory, or the hard drive is beginning to show signs of its dying, or you find you might later need to repair your directory. Regardless, I wouldn't update your software until you find out why your Energy Saver doesn't work properly with the only third party item being a display.

Issue with Task Control Call back and Event Choice in WLI BPM 8.1

Hi,
I am using a Task Control Factory to create Task Control Instances in a loop
and then
create tasks and assign them to a predefined group. I have an event choice
for two events
waiting for the onTaskCompleted and onTaskAborted event call backs.
I have two such operations (of task creation) in the same loop. For
simplicity I have used two separate task factory controls for each of the
tasks (because I even had worse problems using a single control factory for
both tasks in the same loop).
When I instantiate the process, through work list I am able to claim, start
and complete the first task. When I try the same procedure (claim, start and
complete) on the second task, the the event choice for the corresponding
task receives 2 event call backs. First it receives the onTaskCompleted as
expected, but then it also received another call back of the same type which
displays the error on the server log as:
<Sep 24, 2003 9:43:56 AM EDT> <Warning> <WLW> <000000> <on process
completion, 1 undelivered messages to
'sampleRequestTaskFactoryCtrl_onTaskCompleted'>
<Sep 24, 2003 9:43:56 AM EDT> <Warning> <WLW> <000000> <ejbLoad:
Conversation 1064411008439:null not found>
<Sep 24, 2003 9:43:56 AM EDT> <Warning> <WLW> <000000> <A message was unable
to be delivered from a WLW Message Queue. Attempting to deliver the
onAsyncFailure event>
<Sep 24, 2003 9:43:56 AM EDT> <Warning> <WLW> <000000> <ejbLoad:
Conversation 1064411008439:null not found>
Does anybody know why two events are fired for the same work list action?
Thanks in advance.
Henry M

Henry,
Please post this question on the weblogic.developer.interest.integration
newsgroup.
Regards,
Raj Alagumalai
Backline Workshop Support
"Henry Mugasha" <[email protected]> wrote in message
news:[email protected]..
Hi,
I am using a Task Control Factory to create Task Control Instances in aloop
and then
create tasks and assign them to a predefined group. I have an event choice
for two events
waiting for the onTaskCompleted and onTaskAborted event call backs.
I have two such operations (of task creation) in the same loop. For
simplicity I have used two separate task factory controls for each of the
tasks (because I even had worse problems using a single control factoryfor
both tasks in the same loop).
When I instantiate the process, through work list I am able to claim,start
and complete the first task. When I try the same procedure (claim, startand
complete) on the second task, the the event choice for the corresponding
task receives 2 event call backs. First it receives the onTaskCompleted as
expected, but then it also received another call back of the same typewhich
displays the error on the server log as:
<Sep 24, 2003 9:43:56 AM EDT> <Warning> <WLW> <000000> <on process
completion, 1 undelivered messages to
'sampleRequestTaskFactoryCtrl_onTaskCompleted'>
<Sep 24, 2003 9:43:56 AM EDT> <Warning> <WLW> <000000> <ejbLoad:
Conversation 1064411008439:null not found>
<Sep 24, 2003 9:43:56 AM EDT> <Warning> <WLW> <000000> <A message wasunable
to be delivered from a WLW Message Queue. Attempting to deliver the
onAsyncFailure event>
<Sep 24, 2003 9:43:56 AM EDT> <Warning> <WLW> <000000> <ejbLoad:
Conversation 1064411008439:null not found>
Does anybody know why two events are fired for the same work list action?
Thanks in advance.
Henry M

Registering call back object reference

hello to all.
I am developing a RMI application and I have a problem while registering the call back reference object of client.
I have followed what ever thing required to register the clients object reference to register at the server side and server can call my client and it works fine in local environment. But when I use live environment my client can register the object but server cannot call my client.
When I use following code while registering the client reference object
System.out.println("Call me back registered as \n"+cmb); //cmb the the clients reference objectit gives following output
Call me back registered as
Admin_Stub[UnicastRef [liveRef: [endpoint:[192.168.1.2:56851](remote),objID:[-57856c9e:124db6554b6:-7ffe, -7745666993431596650]]]] At localhost it works fine even if my IP address changes to 192.168.1.2 to 192.168.1.4 or 6 i.e. works fine in local environment but when registering to the live environment it registers with the same IP address as shown in the output. So what can I do to register the object so that server can call me.
Also when server get the reference of my client's object and try to connect my client it gives an exception of connection time out, which means it cannot find my client to reply.
So, please suggest me what to do.
Thank in advance.

Very difficult, in fact impossible. You have to allolw for the presence or absence of:
(a) client-side firewalls
(b) client-side NAT
(c) misconfigured client-side DNS, e.g. the Linux /etc/hosts issue described in the FAQ item.
So some client-side configuration is inevitable. Most people avoid callback-based applications over the Internet for these reasons, as well as the security reasons that cause this issue in the first place.

For all those who say Verizon never calls back.

I tried to activate a STB last night that was picked up at a store just before closing. The box would not activate, even after the Cable CARD did an automatic firmware update. I contacted Customer Support and the box still would not activate because of some type of pending order on my account. Normal tech support agents cannot access accounts, for the customers protection, and theirs.
I was told that I would receive a return call within one to two hours. WOW! Within 15 minutes a supervisor called back and said the issue was resolved with the pending order for some type of future activation. Glitch? But the Supervisor had the box up and running within 30 minutes, and staid on the phone with me until I could go upstairs and Verify the proper operation.
Kudos to Verizon and their Fiber Solutions Center CSRs!

that would explain why I never get a call back - my guy was busy calling you

Nokia lumia 928 sms call back number

My wife and I both upgraded to the Nokia Lumia 928. since we have, our text messages to each other are followed by "call back at" and then it gives the phone number of the person calling. Called verizon tech support and they said that it is a feature that is sent from the "nokia" phone with your text message and that there is currently no way to dissable it from the sending "nokia" phone. Has anyone figured out how to get this to stop?

I concur with rayhipkiss. The only way I can call back the sender of a text message I've received is to tap on the name or number of the sender when viewing the text message. This is using an unbranded UK-CV Lumia 1020 and an operator branded Lumia 920.
I'd guess that that it is indeed something that your operator has added to their custom variant of the 928.
Do you see this "call back on" after messages sent to you by someone on other networks, and to they see it on messages that you send them?
Was this post helpful? If so, please click on the white "Kudos!" star below. Thank you!

UCCX call back - 10 digits number followed by an extension number

Hi,
I've built the UCCX call back script which works fine for 10 digits direct lines. In case, if caller doesnt have a direct line, and he wants to leave a 10 digits pilot number followed by 5 digits internal extension number. How to achieve this in UCCX?
For example - 614-XXX-XXXX (extension XXXXX)
Has anyone done something similar in the past? Would really appreciate your quick response.
Thanks.

Thanks Anthony. That means,
- Use 10 digit number in "Destination" field of Call Consult transfer step
- Provide extension number in the "Outpulse Digits" field
- What does "Timeout" mean in this step?
How the pause things work in this step. I mean, once 10 digit number is dialed and connected, then is there any pause in between before extension number is dialed by the system automatically? What typically happens is, company will have the welcome greeting, then they offer you an option of dialing party's extension number? If there is not enough pause in the "Call Consult transfer" step, how will it be taken care of ?
Thank you very much !

HT1766 hi, how to call back the back up when its has been overwrite with the new one?

hi, i was tried to back up and restore my iphone 5 and then update to the latest version with my mac itunes, unfortunately my iphone 5 hang in the middle and it reback-up and overwrite the previous one and i didnt know how com it will overwrite the old one with the new back up, which means all my datas gone, how am i going to call back them?

You don't unless you keep regular backups of your computer in which case you can restore previous backup files.

My iphone 4s hit the water I can get it back?

my iphone 4s hit the water i can get it back?

if you mean that your iphone fell in the water and you picked it up and ask how to breath life back into it
then put it in an open bowl of rice on a hot radtator or heated floor for 48 hours if may fix it but again it may be damaged beyoun repair

HT5035 I had a balance of $5.30 on my account. It disappeared when I added a $25 gift card. I have tried to get this issue resolved thru email. I need a call back. Where do I look to get a call back number for this issue

I have already contacted apple thru email, twice. I don't see that they have an option for a call back for a missing iTunes balance, I did however see where I could get a call back(and did) for not being able to sign in on another device to make a purchase. This problem was resolved quickly for this device. I told this rep about the unresolved problem of the missing iTunes balance and he said he could transfer me but the wait times are very long. In my 2 email correspondences on this missing balance issue both times I was told to check my balance history- which does not resolve the issue that I am having to go thru a huge hassle to get my missing balance back prior to my card purchase. I had a balance of $5.86 show on my ipad2 and on my Mac book pro prior to applying the $25 gift card. Then the balance showed only $25 after apply my gift card, now here's what's weird: aprox. A week and a half later I sign in on my iPod touch and shows a balance of $5.30!, but when it has me resign into iTunes that balance disappeared, and the $25 gift card balance shows up. I made NO PURCHASES to use the $5.86/ or $5.30- so I want my money to equal $30.30/ or $30.86 as it should, and I want to not go thru so much to take care of it. To just hope Apple would have a call back option for this type of issue. I won't be buying iTunes gift cards or purchasing thru iTunes if my balance disappears when I do so.

When you tried to contact Support with the card's images how were you trying to do it, on your phone or a browser on your computer ? And have you tried a different browser to see if you get the same error message ?
As well as images of the card they might also want an image of its receipt.
And to contact Support you were using : http://www.apple.com/support/itunes/contact/ , and clicked on Contact iTunes Store Support on the right-hand side of the page, then iTunes Cards And Codes ?

Wat is mean by CAll Back operation

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