Why would I need to use LiveCycle Data Services in a Flex app?

I cannot figure out what additional functionality is provided by using LiveCycle Data Services in my Flex apps. I cannot get a clear understanding of how using LiveCycle Data Services would benefit my applications. Does someone out there use LiveCycle Data Services? If so, what do you do with it in Flex?
Thanks!

- data push for publish/subscribe implementations
User has to do nothing to get updated information. You push it to their machine when new data is available, like Yahoo finance updated quotes.
- data paging
You don't want to display one million rows in your datagrid at once. Get a batch of data, if the user scrolls down, get the next batch, etc.
- server side clustering
One server does not get overloaded. High traffic sites have their large number of concurrent connections managed more efficiently.
- JMS services
JMS is a powerful technology for messaging throughout an application, and LCDS makes it much easier.
- RTMP tunneling
Allows the use of the RTMP protocol in LiveCycle Data Services applications. Makes it easier to traverse firewalls and proxies appropriately that currently prevent direct RTMP client connections to the server.
If this post answered your question or helped, please mark it as such.

Similar Messages

Error when caching data locally using LiveCycle Data Services

Hi all,
I developing a mobile application support working offline. I using cache feature of LiveCycle Data Services.
This is my datasevice ( it has associate to others dataservice ) and autoSaveCache = true and cacheID = "xxx":
<destination id="expenseData">
          <properties>
                    <source>expense.ExpenseDataAssembler</source>
                    <scope>application</scope>
                    <item-class>expense.ExpenseData</item-class>
                    <metadata>
                              <identity property="id" />
              <one-to-many property="expenseItems" destination="expense-item" />
                    </metadata>
          </properties>
</destination>
when I run application in the first, it run nomarly but when I close and run it again , i get the errror message as below :
Error: Object instance needs an mx_internal::referencedIds property inorder to be managed: Object
          at mx.data.utils::Managed$/getReferencedIds()[C:\depot\DataServices\branches\milestone\adepd s46_rc\frameworks\projects\data\src\mx\data\utils\Managed.as:292]
          at mx.data::DataStore/restoreAssociations()[C:\depot\DataServices\branches\milestone\adepds4 6_rc\frameworks\projects\data\src\mx\data\DataStore.as:5010]
- The error message not showed when I remove line <one-to-many property="expenseItems" destination="expense-item" /> .
Please help me if you know about this problem.
Thanks so much.

no body help me !!!

I have a macbook pro OS 10.5.8. I've sync'ed it with an iPad 2. I would like to access the "cloud" but it seems my Leopard isn't sufficient. How high an OS upgrade would i need to use cloud? Most of my current apps wouldn't work with a too high upgrade.

I have a macbook pro OS leopard 10.5.8. I've synced it with an iPad 2. I cannot access the cloud because my OS is insufficient. Problem is most of my most- used applications would not work with a too-high system upgrade. I can't afford to upgrade all my apps. I need to know: what would be the least-high system upgrade I can install in order to access the cloud on my new iPad 2?
MAC O.S. 10.5.8 - LEOPARD
MacBookPro
MacBookPro4,1
Intel Core 2 Duo - 2.5 GHz; speed 800 MHz
Quark Express 7.3
Adobe Acrobat 8 Pro
Adobe Photoshop CS 3
Adobe Illustrator CS 3
Adobe InDesign CS 3
Microsoft Office 2008
Extensis Suitcase Fusion 12.1.7
Stuffit 12
Thanx
calico6

Define "access the cloud". I can access my iCloud.com account on my 5 year old iMac at work running OS X 10.4.11 Tiger. I can download and upload Word documents and Pages documents in the iWorks section of my iCloud.com account.
What do you want to access in "the cloud"?
Snow Leopard would be your next system upgrade and you should be OK with the CS3 applications, and Office 2008. I cannot confirm that the other applications will work.
This is quite old, but take a look or Google the other applications to see if they are compatible with SL.
http://www.macintouch.com/specialreports/snowleopard/slcompat.html

Why do apple need to use my credit number when downloading free apps ?

im about to download a free app - as i have done many times before
and now itunes needs my creditcard info to be correct .. why ? its supposed to be free ?
well i filled the forms with a correct credit card number (my mastercard) and still no result - itunes tells med i should enter a valid payment method
it seems i cant download freee apps when theres not any money on my bank account ? well well ..
can someone tell me why ?

Apple wants you to risk your number out on the internet maybe, they don't care about customers. They state that it is for validation of your account, but this make no sense as you already have entered a username and password, which seems to work fine on any other site. They basically want your wallet to be held hostage, even for updating already installed apps (this should make you think). This is bad in my book, and I think Apple should change this action ASAP. It is not right and they know it, but greed seems to be the game for them I guess. You should not have to risk your credit card number being transmitted across the internet just to update or install a free app. Android market place does not do things this way.
Just Sad how this is
TonyTronic

Calling LiveCycle Data Services from a Flex application within AIR

Hi there,
I was experimenting with AIR by migrating some of the Flex TestDrive sample applications and trying to run them as stand-alone apps. Following the examples I found on some blogs, I managed to run the applications that use WebService and HTTPService. However, RemoteObject components fail to detect the destinations associated with the remoting service. A simple remoting example from the TestDrive is "Sample 3: Accessing data using Java RPC" and it produces the following error when running it as an AIR app:
[RPC Fault faultString="No destination with id 'product' is registered with any service." faultCode="Server.Processing" faultDetail="null"]
I would be grateful for any suggestions.
Note: I hard-coded the endpoints of all the services in services-config.xml to point to my local JBoss server.

Hi Bushra,
May I suggest that you pose your question on the Adobe AIR Forum? As there are people monitoring the AIR forum with that particular expertise, it would seem to be the more appropriate venue.
Thanks,
Kim

Only LiveCycle Data Services 2.6 or higher is supported in this version of Flash Builder.

Hi guys!
I am using LiveCycle Data services 2.6 and Flash Builder 4.0.. and getting an error
Only LiveCycle Data Services 2.6 or higher is supported in this version of Flash Builder.
Any suggestion? why Flashbuilder is not detecting correct version?
Thanks

Hi Tom,
Thank for reply.
In my application I was using Flex 3.0 and LCDS 2.6. I need to generat PDF
generate and save 100% at client side. so I used Flex Gumbo to use
filestream.save since flex 3.0 doesn't support filestream. Using Gumbo let
me filestream but gave me an "direction" style declaration for charting
component .. mismatch with previous version. To overcome that I used Flex 4
flash builder. That gave got rid of direction but gave me LCDS 2.6 version
error. I have copied my older workspace to another location and using this
workspace for Flex 4. I am using LCDS 2.6 though it give me same error. I
have almost given up, really dont know what needed to be done. Thanks for
your help.
Vipul

Help me about LiveCycle Data Services

Hi all,
   I use Flex 3 and BlazeDS server to write my web app. Today, I want use LiveCycle Data Services ES. I have done some steps bellow and I need some guides continue from anyone.
   1. Download the LiveCycle Data Services ES from adobe home page (ok).
   2. Install it with option is include Tomcat (ok).
   ... what step continue..?
   My project was created with BlazeDS server, and I need place inside LiveCycle Data Services ES that just installed ? Or I must re-create my project with LiveCycle Data Services ES ?
   Please guide to me some necessary steps to use LiveCycle Data Services.
   Thanks very much.

Which file exactly from the lcds samples? I can't find this file in the livedocs nor in the source of the samples.

LiveCycle Data Services without Flex UI

Is it possible to use LiveCycle Data Services as a backend without Flex/Flash as front end ( any other tech as front end Struts, JSP, JSF etc).
Idea is to get advantage of features provided by Data Services with something other than Flash player as front end?
Thanks
YogLC

Thanks Mete.
If you can please elaborate your thoughts more it will be helpful to me to take certain decisions.
If you can provide some reference or pointer or example on this specific topic that would be great too!
Any Adobe personnel from LiveCycle Data Services Team pl. reply?
Thanks again,
YogLC

PDF Generation with LiveCycle Data Services

Hi everybody!
I am using LiveCycle Data Services to generate a dynamic pdf. I worked with this tutorial : livedocs.adobe.com/livecycle/es/sdkHelp/programmer/lcds/pdfgen_1.html and i adapted the code to my own example.
I created a pdf template with livecycle designer and i succeed to generate the pdf thanks to LiveCycle Data Services.
Here is my problem :
In LiveCycle Designer i create a table and bind my data connection (from xml source) to this table and i bind subforms to repeating data.
It works when i try to open an overview of the pdf with LiveCycleDesigner.
But when i try to generate the pdf with livecycle data service, there is no repeat of my data. There is only a number of items corresponding to the minimum of repeating i set in livecycle designer binding window...
Is it possible to generate repeating data with LiveCycle DS ?
an example of my xml source :
<item id="1">
<data>blabla</data>
</item>
<item id="2">
<data>blabla</data>
</item>
In livecycle designer, if i set the minimum of repeating to 1, LiveCycle DS generate a pdf with only one item.
if i set the minimum of repeating to 2, LiveCycle DS generate a pdf with only 2 items. etc.
I don't know how to generate an indeterminate number of items...
Thanks in advance for your help.
Bye
Guillaume

Hi Guillaume,
there is no limitation. Dynamic PDF files can be generated with Livecycle Data Services.
You should have a look at the XML file generated by your Flex code. Try to save it and see how the XML file behaves when you generate a PDF preview with Designer. You can go to the menu: File > Properties > Preview > Use XML test data...
With the XFAHelper class, you can either load a PDF or a XDP file. Have you tried with a XDP ?
I've attached a dynamic PDF file that I've created for a customer. I generate a dynamic PDF file using LiveCycle Data Services. Maybe you'll find some clues within the file.
Michael

Problem LiveCycle Data Services with Parsley Framework

Hi All,
I have problem when using LiveCycle Data Services and Parsley framework.
Here is my Dynamic command :
public function execute(message:ServiceMsg):AsyncToken{
                                   return dataservice.fill(...);
public function result(event:ResultEvent):void
     Alert.show ("run successful");
     // call another method
     xyz(); // this method take a long time (about 1 minutes)
The problem here is the alert message not show until xyz() method finished. It's so odd behavior.
Anybody can explain this problem.
I'm using parsley 2.4.0
Thanks,
ndt

Hi All,
I have problem when using LiveCycle Data Services and Parsley framework.
Here is my Dynamic command :
public function execute(message:ServiceMsg):AsyncToken{
                                   return dataservice.fill(...);
public function result(event:ResultEvent):void
     Alert.show ("run successful");
     // call another method
     xyz(); // this method take a long time (about 1 minutes)
The problem here is the alert message not show until xyz() method finished. It's so odd behavior.
Anybody can explain this problem.
I'm using parsley 2.4.0
Thanks,
ndt

Is LC Foundation bundled with LiveCycle Data Services

I recently got this question - Do I get LC Workbench and LC Foundation when I buy LiveCycle Data Services?
The answer is "No".
With LiveCycle Data Services you get:
1. LiveCycle Data Services server - It works with most application server, but ship with a tomcat based turnkey option
2. Adobe Application Modeling Plugin - This is a plugin to Flash Builder 4 that enables to do Model Driven Development of Flex applications. This is "New in 3.0"
Anil Channappa | Sr. Product Manager LiveCycle Data Services and Blaze DS
Adobe Systems Inc | 21-61 Hickory Dr, Waltham, MA 02451-1011
[email protected]<mailto:[email protected]>| 781.839.1331 | myBlog<http://anilchannappa.org/

Hi Guillaume,
there is no limitation. Dynamic PDF files can be generated with Livecycle Data Services.
You should have a look at the XML file generated by your Flex code. Try to save it and see how the XML file behaves when you generate a PDF preview with Designer. You can go to the menu: File > Properties > Preview > Use XML test data...
With the XFAHelper class, you can either load a PDF or a XDP file. Have you tried with a XDP ?
I've attached a dynamic PDF file that I've created for a customer. I generate a dynamic PDF file using LiveCycle Data Services. Maybe you'll find some clues within the file.
Michael

HT4221 I really want my Apple TV, iPad and iPhone to sort them in date taken like in iPhoto on my iMac. How do I do that? Sorting on date modified seems so stupid to me, why would anyone need this? Date taken gives a timeline in your event.

I really want my Apple TV, iPad and iPhone to sort them in date taken like in iPhoto on my iMac. How do I do that? Sorting on date modified seems so stupid to me, why would anyone need this? Date taken gives a timeline in your event.

The unix commands you need are:
GetFileInfo
SetFileInfo
and maybe find
for cryptic details use the man command
Macintosh-HD -> Applications -> Utilities -> Terminal
man SetFileInfo
You may use the SetFileInfo command to set the file type & the program which will open the file.
# This little gem will do a get info on all files in a directory.
mac $ ls | xargs -I {} GetFileInfo "{}"
file: "/Users/mac/playdoc/oddadocodd"
type: ""
creator: ""
attributes: avbstclinmedz
created: 05/01/2011 14:53:22
modified: 05/01/2011 14:53:22
file: "/Users/mac/playdoc/one.docx"
type: ""
creator: ""
attributes: avbstclinmedz
created: 05/01/2011 13:57:48
modified: 05/01/2011 13:57:48
file: "/Users/mac/playdoc/oneLineFile"
type: "TEXT"
creator: "!Rch"
attributes: avbstclinmedz
created: 05/07/2011 14:27:17
modified: 05/07/2011 14:27:17
file: "/Users/mac/playdoc/oneLineFile.txt"
type: "TEXT"
creator: "!Rch"
attributes: avbstclinmedz
created: 05/07/2011 14:27:49
modified: 05/07/2011 14:27:49
file: "/Users/mac/playdoc/three.docx"
type: ""
creator: ""
attributes: avbstclinmedz
created: 05/01/2011 13:58:03
modified: 05/01/2011 13:58:03
file: "/Users/mac/playdoc/two.docx"
type: ""
creator: ""
attributes: avbstclinmedz
created: 05/01/2011 13:57:56
modified: 05/01/2011 13:57:56
file: "/Users/mac/playdoc/weirder.doc.docx"
type: ""
creator: ""
attributes: avbstclinmedz
created: 05/01/2011 14:50:03
modified: 05/01/2011 14:50:03
# well, ! is a funnie character so we escape it.
mac $ SetFile -t TEXT -c \!Rch two.docx
mac $ GetFileInfo two.docx
file: "/Users/mac/playdoc/two.docx"
type: "TEXT"
creator: "!Rch"
attributes: avbstclinmedz
created: 05/01/2011 13:57:56
modified: 05/01/2011 13:57:56
mac $
mac $ date
Sat May 7 14:40:56 EDT 2011
mac $

HT201342 why would I need another e-mail address?

hi, Why would I need another e-mail address. When .me came out I thought that .mac would be erased so I gave everyone my .me account (even though I prefered the .mac name) the .mac continued to work and now everyone sends me TWO e-mails which arrive at exactly the same place. I can understand if the e-mails arrive at different mail boxes, then you could give your family one, your business another, your kids school a third, but why... why 3 accounts that go to exactly the same place. I realise I don't have to use all 3 but can someone tell me how to get the most out of these e-mail addresses. Thanks!

Just give out the one email address you want to use. They are all the same account anyway. People do not need to send emails to both email addresses so tell them to only use the one you prefer.

I have an ipad also wifi at home. Would is needed to use my wifi connection while not at home?

I have an ipad also wifi at home. Would is needed to use my wifi connection while not at home?

You can't use your wi-fi connection when not at home. Heck, my wi-fi connection bales out halfway down the back garden. Many places offer wifi hot-spots. Go google. The only (relatively) surefire way to be able to get on the internet anywhere is to have a 3G capable iPad and corresonding data plan.

Needing to use xml data source to populate richfaces tree nodes

Hey I cant seem to figure this out. I know I probably need to write some java code but Im not sure how it should look. I have some xml and I need to use the data from within the elements to populate some nodes on a richfaces tree.
I know how to use a .properties file as the data source for the nodes, and how to use some existign nodes to populate the nodes. Both are done with java code I can post here if needed.
But I dont know how to go about writing the java code to take the data from xml elements, and then somehow parse it to use in a richfaces tree.
Here is some info on what Im using with my project:
eclipse
simplexml
httpclient
jsf
richfaces library

Adobe Newsbot hopes that the following resources helps you.
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Flex 3 - Using item renderers with the AdvancedDataGrid
control:
Flex Data Visualization Developer's Guide / Advanced Data
Grid Controls and .... that the item renderer is for column 2 of
the control: <?xml version='1.0'?
Link:
http://livedocs.adobe.com/flex/3/html/advdatagrid_10.html
DataGrid ItemRenderer - Flex India Community | Google Groups:
Apr 28, 2008 ... My dataGrid itemRenderer displays a certain
icon and sets fontStyle ... <mx:Label id='txt' fontWeight='bold'
text='{data.subject}'/>
Link:
http://groups.google.com/group/flex_india/browse_thread/thread/bd30dd974da47d68
Flex 3 - DataGrid control:
<mx:Button label='Toggle Price Column'
click='price.visible = !price.visible;' ... Flex lets you populate
a DataGrid control from an ActionScript variable
Link:
http://livedocs.adobe.com/flex/3/html/dpcontrols_6.html
Flex Fun - Advanced DataGrid Topics:
You will notice that the datagrid doesn't have any header
labels or vertical ..... After the opening tag we add a
<mx:itemRenderer> telling Flex that we are
Link:
http://blog.paranoidferret.com/index.php/2007/08/29/flex-fun-advanced-datagrid-topics/
Flex 3 - Instrumenting RandomWalk events:
Flex Data Visualization Developer's Guide / Advanced Data
Grid Controls and Automation Tools ... itemRenderer = child as
Label; dispatchEvent(rEvent);
Link:
http://livedocs.adobe.com/flex/3/html/functest_components2_20.html
Adobe Flex 2: Advanced DataGrid:
Adobe Flex 2: Advanced DataGrid. Drop-in RadioButtonGroupBox;
runtime computed .... Anatole authored number of books and articles
on AJAX, XML, Internet and
Link:
http://flex.sys-con.com/node/311283
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Why would I need to use LiveCycle Data Services in a Flex app?

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