Flex Data Management Services Tutorial

Hi, I would like to get the tutorial to work with MYSQL. I was able to create and pouuplate the database.

Could you please outline the changes required to config files etc so that I could start tomcat in eclipse and run the pages in the browse

I am looking at your site based on Kevin Hoyt’s (from adobe) suggestion in his online seminar that I did yesterday. I am looking at all of this and it all seems a bit over my head. I am really wanting to get into Flex, however, I am looking for a simple gradient to start at. I know some very basic stuff in it already just from some of the help options and so forth. However, I would like to just roll on learning more about it, I wondered if you know of a simple place to start or what I should learn to begin with, etc. I am factually a graphic designer (Photoshop & InDesign), but I have got to get into Flex in order to pull off anything good in a whole project I am doing (creating a whole system with some nice GUI connected to databases, etc). I have my own programmer who is really getting into Java at the moment, but I have to roll too. I just have to roll in the right direction and learn as much as I can with the minimum of lost time. Can you give me some direction. Thank you in advance. Please don’t post this comment as it is more of a request for help.

Christophe,

I’m currently researching FDS and JAVA for an upcoming project. I’m not a JAVA developer – but it’s something I am working on at the moment. Anyway – do you suggest any design patterns or ways of breaking up larger applications – FDS side? For example an App which has 8 main tabs with multiple sub-tabs each with datagrids / forms?

Any suggestions for further reading would great,

Thanks

thanks Christophe, surely this tutorial is going to help me in my project.

Everything is fine & running, just one thing, in Eclipse(having Flex perspective) the inventory.mxml cannot be shown in design mode, it prompts with an error “An unknown item is declared as the root of your MXML document. Switch to source mode to corret it”
I found out that its pointing to flex-config.xml file & says “” As unknown configuration variable

Any Idea?

Any tips on a free Flex IDE?

tnx curt

Great examples!!

I made a tiny application that has to make some calculation. So I have to transform remote data in variables. I couldn’t do it with HTTPService or WebService as with those objects I can only do data binding.

So I made an “XMLLoad” class with an EventDispatcher to parse the xml in a variable.
Is there another way to do that?

And how to do this with a WebService?

Thanks.
Seb

This is all nice and very exciting but I need an additional tutorial on how to “secure” hibernate queries. What should one use for an authentication layer/technology, what kind of code needs to be written in flex to login and authenticate (using what kind of server side technology?) and finally how and where to build a list of priviliges to authorize certain users to run certain queries and not allow other to…

Good Tutorial …
Hi can u post a tutorial on flex hibernate java

Thank You

Hi all,
Christoph thanks a lot for you job is really great.
I found a problem using the tutorial, when I created the flex project(inventory.mxml).
Eclipse give me back the following error
“unknown configuration variable compiler.keep-as3-metadata”.
I tried to use the suggestion coming from
“Martin on February 5th, 2007″ but nothing changed.
Can somebody help me ?
thanks in advaced
Salvo

Hi ,

I was trying to connect to oracle database using FDMS but when I run the mxml file in browser and when I click on Getdata button which does the same thing “ds.fill(products)” but it does not retrieve the result from Database and it shows nothing on the command prompt of server. What can be the possible error? when there was error in the query it was giving error on server command prompt as “Numeric Overflow” but when the query was fine it showed nothing on command prompt just the message “server startup in 9340 ms”

The Channel.Connect.Failed error is a red herring.

The problem is that you need to “build” the server-side project. If you look at the tomcat log, it will show that it cannot find the ProductAssembler class.

Maybe the tutorial could be updated to add in this important step.

([RPC Fault faultString="Send failed" faultCode="Client.Error.MessageSend" faultDetail="Channel.Connect.Failed error undefined url:'rtmp://localhost:2037'"]
)

I getting this error when I try to use the data management, this is my configuration. I using EJB as persistent layer.

ejb3
FOModelBean/remote
application

20

Please advice.

I’m a have small problem , can any one help me? Please
I make a project which very similar to Product project(in example).

1) Have Assembler class: I work correctly

package flex.samples.stock;

import java.util.List;
import java.util.Collection;
import java.util.Map;

import flex.data.DataSyncException;
import flex.data.assemblers.AbstractAssembler;

public class StockAssembler extends AbstractAssembler {

public Collection fill(List fillArgs) {
StockService service = new StockService();
System.out.print(fillArgs.size());
return service.getStocks();
}

public Object getItem(Map identity) {
StockService service = new StockService();
return service.getStock(((Integer) identity.get(“StockId”)).intValue());
}

public void createItem(Object item) {
StockService service = new StockService();
service.create((Stock) item);
}

public void updateItem(Object newVersion, Object prevVersion, List changes) {
StockService service = new StockService();
boolean success = service.update((Stock) newVersion);
if (!success) {
int stockId = ((Stock) newVersion).getStockId();
throw new DataSyncException(service.getStock(stockId), changes);
}
}

public void deleteItem(Object item) {
StockService service = new StockService();
boolean success = service.delete((Stock) item);
if (!success) {
int stockId = ((Stock) item).getStockId();
throw new DataSyncException(service.getStock(stockId), null);
}
}

}

some require class is ok.
2) I configure in data-management-config.xml

flex.samples.stock.StockAssembler
application

20

3) My client app:
I use :
….

……
ds.fill(stocks); –> Problem here
When I run this app, The method fill() of StockAssembler on the server work correctly (i use printout to debug) . But variable stocks can’t get the return value,it is a empty list.

Please help me!

very interesting.
i’m adding in RSS Reader

Hi Cristophe,

I was going through the examples of yous, but none of the channels (be it my-rtmp/amf) are working for some peculiar reason. Is it that we need to install something for getting them work ? Please let me know
as I am stuck with this for quite some time.

Thanks.

In your example in the pdf you are not using ds.createItem anywhere…!! can you please tell a way to use createItem from the client side.

very interesting.

Thank you very much for this information. I like this site

ooo süper this is. fantastik

Thank you very much

Güzel Sözler

very much

tek yuo admin

This is one of the best FLEX examples on web.
Thankyou very much for creating such a great examples.