Java with flex

Hi
I am new to Flex .
Do any one know how to develope an application with flex , java and database connection.
I have FLEX SDK 3.1
MySQL 5
jdk 1.5
whether any thing else required for developing the application.
Plz help.
Its Urgent

Hi,
Flex3, MySQL5 and jdk 1.5 should be fine.
Though I have not worked with flex with MySQL combination, I have used the
- Flex2/3
- MSSQL2005/ Oracle9i/ HSQLDB/ Apache Derby
- jdk1.5(update 4)/1.6
combinations.
But I think you may need jdk1.6 for flex3. Also if affordable, go for Flex Builder - will make your UI creation easy.
Hope this helps.

Similar Messages

Replacing WebDynpro for Java with Flex 3 Apps

Hi there, I am new in developing Flex 3 app.
I know how to use web Services with Flex and so on. But the my question how can I replace WebDynpro Apps in SAP NetWeaver portal. What do I have to do?
How can I integrate Flex App in Portal without using the Visual Composer?
Best regards Jay

Hi Jan,
Below check the below weblog. It may help you.
Using Flex in SAP Web applications (without Adobe Flash Islands)
Raghu

Advice with Flex-Java

Hi All,
I need a little help, I'm starting with Flex and Java, I've experience with php-flex and i need to make a Flex-Java J2ee application using MySql and store procedures... and what i'm asking is that you put me on the right position...
where can i start ... please tell me what to use i'm totally lost.. on this... what can i use.... please give me any advice....
Well i'll wait for all your advices....
Thanks a Lot.... and regards...
Cesar Glez.

Here are some great links that will answer your question:
http://www.adobe.com/devnet/flex/flex_java.html
http://learn.adobe.com/wiki/display/Flex/Flex+and+Java
http://www.adobe.com/devnet/flex/articles/java_flex.html
http://www.javaworld.com/javaworld/jw-01-2009/jw-01-javaee-flex-1.html
If this post answers your question or helps, please mark it as such.

How To call java WebService with flex.

Hi Friends
can any body guide me how to use webservices that call java at server side.i have experience of http service dont know how to call the webservices.please give me a basic demo on both side(java and flex).i am using eclipse ide for java and flex.
Thanks in advance
Vineet osho

The ADF Mobile Container Utilities API may be used from JavaScript or Java.
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Issues in mapping objects from java to flex - using flex4

Hi,
I have a class in java which i want to send to flex4 using BlazeDS as middleware. There are a few issues that i am facing and they are:
When sending the object across (java to flex), the properties with boolean data type having value as true gets converted to properties with value as false. Even after setting the value to true it still comes as false on flex side. Can't understand why this is happening.
When sending the list of object containing property with boolean data type, the object on flex side does not show those properties at all. As of there were no boolean properties in that object.
Last but not the least, When sending List<ContractFilterVO> contractFilterVOs to flex using remote call, the result typecasted to ArrayCollection does not show the holding objects as ContractFilterVOs but as plain default Object though having all the properties send, except the boolean one mentioned in above points. Basically it is not able to typecast the objects in arraycoolection but the same objects gets typecasted when sent individually.
In all the above points i am using Remote Service through BlazeDS for connectivity with Java. I have done a lot of this stuff in Flex 3 but doing it for the first time in flex 4, is there anything that Flex 4 needs specific. Below is the pasted code for reference purpose.
Flex Object
package com.vo
     [RemoteClass(alias="com.vo.ContractFilterVO")]
public class ContractFilterVO{
     public function ContractFilterVO(){
     public var contractCode:String;
     public var contractDescription:String;
     public var isIndexation:Boolean;
     public var isAdditional:Boolean;
* Rmote Part of code
var remoteObject:RemoteObject = new RemoteObject();
remoteObject.destination="testService";
remoteObject.addEventListener(ResultEvent.Result,handleResult);
public function handleResult(event:ResultEvent):void{
     var contarctFilterVOs:ArrayCollection = event.result as ArrayCollection; //Point 2&3 probelem, if list sent form java
     var contarctFilterVO:ContractFilterVO= event.result as ContractFilterVO; //Point 1 probelem, if only single Object of type ContractFilterVO sent form java
Java Object
package com.vo
public class ContractFilterVO implements Serializable
     public function ContractFilterVO(){
     private static final long serialVersionUID = 8067201720546217193L;
     private String contractCode;
     private String contractDescription;
     private Boolean isIndexation;
     private Boolean isAdditional;
I don't understand what is wron in my code on either side, it looks syntactically right. It would be great anyone could help me point out my mistake here. Waiting for right solutions...
Thanks and Regards,
Jigar

Hi Jeffery,
Thanks for your reply, it did solve my query @ point 3 as well as point 2 where the objects in arraycollection were not geting converted and boolean properties did not appear when list of an objects were received. And hey, i did have public functions for properties defined java class, just forgot to mention here in post, sorry for that.
The solution you gave was right, but than what if i have a VO which has multiple List of objects coming from Java, than i would have to create an instance of each type of object on flex side this is too tedious, is'nt it? Is there any better solution... out there.
And jeffery do you some tricks up your sleeve for this Boolean issues to that i am facing in point 1... Still struggling with this one...
Anyone out there would be more than welcome to point my mistake, if any and provide tips/tricks or solutions...
Thanks again to Jeffery...
Waiting for more solutions sooner...
thanks and Regards,
Jigar

How to move a money value from java to Flex

According to
http://livedocs.adobe.com/flex/2/docs/wwhelp/wwhimpl/common/html/wwhelp.htm?context=LiveDo cs_Parts&file=00001103.html
I can pass a Double, Float, Long, Short, BigDecimal or the primative equivalent types from java to Flex and they will be converted into a number.
My testcase says that only BigDecimal actually shows up on the Flex side.
Am I missing something or is there a problem in BlazeDs/Flex somewhere?
Bill Tims
P.S. If you would like my sample code, I'll be glad to post it.

Pete
After looking at it I see why you were confused. Here is the Java object, the receiving Flex object, and the debug info from the SystemOut.log out of JBos 4.2. All of this is using Java 1.6 and Flex 3.0. I'm using the December, 2008 BlazeDs jar files.
The variable bCd is being serialized as BCd. If I change it to bcd, everything works fine. We also tested this with php->flex and that works fine, which suggests the problem is in Blaze.
public class Test2 implements Serializable{
private static final long serialVersionUID = 1805176418478176484L;
private String abc = "abc";
private String bCd = "bcd";
public Test2() {
public String getAbc() {
return abc;
public void setAbc(String abc) {
this.abc = abc;
public String getBCd() {
return bCd;
public void setBCd(String cd) {
bCd = cd;
============================================================
package jdbcTables.businessdelegate {
import mx.rpc.soap.types.*;
import org.slsot.mis.jdbc.*;
[RemoteClass(alias="org.slsot.mis.value.inquiry.Test2")]
[Bindable]
public class Test2
public var abc:String;
public var bCd:String;
} /* Test2*/
=============================================================
12:24:22,084 INFO [STDOUT]-btims [BlazeDS]03/03/2009 12:24:22.084 [Endpoint.General] Channel endpoint slsot-amf received request.
12:24:22,084 INFO [STDOUT]-btims [BlazeDS]03/03/2009 12:24:22.084 [Endpoint.AMF] Deserializing AMF/HTTP request
Version: 3
(Message #0 targetURI=null, responseURI=/4)
(Array #0)
[0] = (Typed Object #0 'flex.messaging.messages.RemotingMessage')
operation = "callFunction"
source = null
destination = "accessor"
timestamp = 0
headers = (Object #1)
DSEndpoint = "slsot-amf"
DSId = "nil"
clientId = null
timeToLive = 0
messageId = "9530B236-243F-4965-4252-CD944C3430F1"
body = (Array #2)
[0] = "Test"
[1] = "test2"
[2] = (Array #3)
12:24:22,084 DEBUG [Accessor]-btims Begin Test.test2()
12:24:22,099 DEBUG [Security]-btims t2=org.slsot.mis.value.inquiry.Test2@1b89df3
12:24:24,678 DEBUG [Accessor]-btims End Test.test2()
12:24:24,678 INFO [STDOUT]-btims [BlazeDS]03/03/2009 12:24:24.678 [Service.Remoting] Adapter 'java-object' called 'org.slsot.mis.Accessor.callFunction(java.util.Arrays$ArrayList (Collection size:3)
[0] = Test
[1] = test2
[2] = java.lang.Object[] (Array length:0)
12:24:24,693 INFO [STDOUT]-btims [BlazeDS]03/03/2009 12:24:24.693 [Service.Remoting] Result: 'org.slsot.mis.value.inquiry.Test2
abc = abc
BCd = bcd
12:24:24,693 INFO [STDOUT]-btims [BlazeDS]03/03/2009 12:24:24.693 [Endpoint.AMF] Serializing AMF/HTTP response
Version: 3
(Message #0 targetURI=/4/onResult, responseURI=)
(Externalizable Object #0 'DSK')
(Typed Object #1 'org.slsot.mis.value.inquiry.Test2')
abc = "abc"
BCd = "bcd"
1.236104664693E12
(Byte Array #2, Length 16)
(Byte Array #3, Length 16)
(Byte Array #4, Length 16)

Getting started with Flex ...

Hi All,
I've been looking a Flex over the last couple of weeks and have managed to setup a couple of basic projects that can read data from a mySQL database etc... However when it comes to understanding some of the more advanced frameworks and options to use with Flex it starts to get very overwhelming.
Does anyone have any pointers/suggestions for good material (online or books etc) to start with Flex. I come from an Oracle Forms development background and in terms of setting up an application with a connection to a database Oracle Forms seems to a lot simplier than building a Flex database application (although the functionality of Oracle Forms as a lot more limited than Flex/Flash).
I have taken a look at a the book Enterprise Development with Flex: Best Practices for RIA Developers (Adobe Dev Lib)http://www.amazon.com/Enterprise-Development-Flex-Practices-Developers/dp/059615416X/ref=s r_1_6?s=books&ie=UTF8&qid=1319581262&sr=1-6 by Yakov Fain, Victor Rasputnis and Anatole Tartakovsky (Mar 30, 2010), however the very first code example in the book appears to be dated and I'm having trouble getting it to work and finding the appropriately dated source files for the example project.
I have also taken a quick look at Adobe Flex 4.5 Fundamentals: Training from the Source by Michael Labriola and Jeff Tapper (Aug 5, 2011) which appears to be a bit more recent, however I am not sure how much is covered regarding database connections to databases like mySQL and Oracle.
Any suggestions on the best learning materials available would be really helpful. At the moment it feels like I need to be an expert in Flex, MXML, ActionScript, Java, Spring, Hibernate, AMF, Maven, BlazeDS etc etc just to be able to create a simple database centric application (aarrgghh).
Ideally I would love to be able to find a recent tutorial that goes through the building a relatively advanced Flex database centric application, that includes information about building a database based login/authentication system (without having to use PHP), and database controlled/stored main menu system and a system for modular sub tabs/screens/programs within a main application.
Regards,
Leigh.

Thanks everyone for the replies. I guess I'm a bit lazy when it comes to reading up on a technology I am not familiar with :-) . What makes things worse is the Oracle Forms Builder IDE is very highly coupled to the Oracle database and therefore there is no requirement to know or understand the language or technology under hood (other than PL/SQL), Oracle takes care of that within the IDE and the Forms Java Bean (deployed by default with a middleware installation of Oracle application server).
@dwaynie Started working through the Flex in a week video training yesterday. Its really good and probably the best place for me to start as it goes over a lot of the assumed knowledge regarding Flex, MXML and AS (stuff I have probably glossed over up until now)
@Mansuro noticed that spring has a dedicated page on the Flex/Flash plaform site so I'll probably look into this more down the track. I guess the thing I am little confused about is that there are many examples online that integrate Spring + Hibernate + Maven + Java etc etc, I guess each framework has different features that the others don't and therefore all can be used at once, or does each one offer a completely different service? More reading is required here I think.

RPC Calls to Java with Spring

Hi,
I have a java J2ee project, with spring integrated. I have
set up the project so that I can make calls from flex mxml files to
spring managed objects. This works as expected.
My project deploys so that I have the following folder and
file hierarchy.
MyProj (folder) - MortgageCalc.mxml file (this contains code
to make the remote calls)
|- Web-INF
|- classes (compiled Java classes)
|- flex (containing my services-config, remoting-config)
|- lib (all my jars)
My MortgageCalc.mxml file is very simple; it looks like this
<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml">
<mx:RemoteObject id="ro"
destination="mortgageService"/>
<mx:TextInput id="amount"/>
<mx:Button label="Calculate"
click="ro.calculate(Number(amount.text))"/>
<mx:TextInput id="monthlyPayment"
text="{ro.calculate.lastResult}"/>
</mx:Application>
MyProj sits under tomcat/webapps.
What I would like to do is move my flex code into a new
folder under tomcat, as a separate web app.
So my set-up would be
tomcat/webapps/MyProj (containing all my Java code)
tomcat/webapps/MyFlexApp (with my flex app)
I have tried and failed, I get the following error message :
[RPC Fault faultString="[MessagingError message='Unknown
destination 'mortgageService'.']" faultCode="InvokeFailed"
faultDetail="Couldn't establish a connection to 'mortgageService'"]
I have very crudely just copied over the Web-INF/flex folder
into MyFlexApp , crossed my fingers and hoped. Can somebody let me
know what folders belong where to get this working? Or if it's even
possible at all? Or maybe I need to change services-config, or
remoting-config?
Thanks,
Matt

user8730639 wrote:
I realized that the problem isn`t my bat file. I made tests calling another jar files and then all the lines of the batch file were executed. So, the jar file called on my previous bat is finnishing the execution. I verified and the jar apps worked without error.
I would like to know if exists any command in Java that can cause this effect (close a batch), to modify the open source code of the application.Not that I know of.
Is prism a bat file?
If you are invoking bat files from your bat file without using call that would explain it
:: mymain.bat file
:: call the first bat file
call prism.bat arg1 arg2 arg3
:: call the other bat file
call prism.bat arg4 arg5 arg6
::

How to deal with Flex Exceptions ??

Hi ,
I know how to handle an Exception when dealing with Flex with server side that is , when an Exception comes from the server side (java) i can easily handle that on the fault event with the help of ErrorMessage .
But can anybody please let me know how to handle an Exception when it comes on to the ActionScript and show it to the User .
For instance , i have seen a half example like this :
try
catch(error:EOFError)
MyTextFiled.text = error.toString();
Now please let me know how can i show this to the End User ??
And i can only see Errors in ActionScript , is there anything like Exceptions on to Flex??
Thanks in advance .

you can use any one of following
mx.controls.Alert.show(
"Error:"+e.message.toString())mx.controls.Alert.show(
"Error:"+e.toString());

Deploying AIR applications with flex & BlazeDS

I have a Flex app which needs to run on the server in the
background. I was thinking of turning into an AIR app since it
really doesn't need to run on the browser. But how could I deploy
this.
I am sending my entire flex project as a .war file to deploy
on the server and am using BlazeDS to work with some java backend
code. But all of the tutorials for AIR seem to assume some sort of
manual install method and I just want to bundle it with my current
project. Is this possible? And if so, how is this done?

I actually do send the PNG as a byteArray to Java from Flex
via a remote object method. The reason I need Flex is because I
specifically want to use the charting software package from Flex
charting. The Flex look and feel out of the box for the interface
and the chart is far superior to what I could create in Java.
Here is a quick over view of what happens in the application:
1. launch java app
2. Java then launches a Flex instance for each report defined
in the database
3. java pushes live data to each Flex instance from database
4. after Flex plots data, it sends ByteArray of the png to
remote java method
5. java saves png to file locally on the server
How would you simplify this process? I'd really appreciate
your take on this.

Server/Data Push Form Java to Flex.

Hi All ,
In my application ( Flex3 + Java Struts) i am using RPC (HttpService) calls only . Recently i read the article about
DATA PUSH FROM JAVA TO FLEX WITHOUT PAGE REFRESHING USING SERVER PUSH.
Can anybody tell me more about this , how to use this in my application.
Thanks in Advance....

Did not worked that much with those but I know there are some embedded example
that comes along with the blazeDS download.
The DB is embedded but you can have a rough idea. alsoe there are some
turtorials and odcs for both of them, Google is your friend. Also google for
James Ward's blog and Christophe Coenraets, they have posts about this.
C

Send error from Java to Flex

I need to throw errors from Java and to receive them in Flex.
My idea is using xml with error id and message, and maybe the Flex
component which should show the error.
Is there any other way to do it? Another interaction between
Java and Flex?
Thanks in advance
Tuli-O

XML wrapping error info written to response when java code
throws and having a common component on the flex to handle this
situation -- maybe on the fault event.

Integratio of OPM with Flex

How can I integrate My oracle policy modelling project or rules with Flex Application.We r Trying to make similar type of project which has been given under OPM Example (Social Sevices) but in Adobe Flex.
Till now i have written rules in oracle policy modelling then through policy modellinhg only i generated web services and trying to call in flex.
But still i am not clear with how this can be achieved,which operation can be usefull for me for sending response from flex to oracle rule engine.
Can you explain me the process step by step nd guide me for this project.
Is my Approach is correct?
It would be great Help if you clear my doubts regarding integration of OPM with Flex.

There are two ways of accessing the engine.
The first way is accessing the engine through the Java or .NET API. In order to do this Flex will need to be able to make direct calls to Java or .NET.
The second way is through the Determinations Server Web Service. The Determinations Server is specifically designed to provide a coarse grained access to the Rule engine, through SOAP/XML over HTTP. The Assess service provide a stateless way of making determinations (ie - data in --> answer out). The Interview service provides a way of creating a more stateful experience (ie, create a session, add/modify data, get screens to answer questions)
If Flex can call Java or .NET APIs directly then, you can use the engine API, otherwise you will have to run the determinations server as a remote web application and access, the engine through the Assess or Interview service.
It looks like Flex definitely has support for calling web services, which would suggest that the Determiantions Server approach would work. A quick google for Flex, Java and .NET looks like access to Java and .NET is always done through web services.

Problem with "Building interactive maps with Flex" example

I have been looking at the tutorial by Matt Sheehan Building interactive maps with Flex found at
http://www.adobe.com/devnet/flex/articles/interactive_maps.edu.html
I have downloaded Flash Builder 4.6 trial version and followed the example. I have also copied the source code from the example and pasted that into the file mymodestmap.mxml.
In both cases the application opens a new page in Google Chrome but does not display any map data.
No errors or warnings are displayed when I run the code from Flash Builder.
Although I have got plenty of experience of writing software, I am a total beginner when it comes to developing web applications!
Any ideas as to what I am doing wrong, I have attached the source below.
Cheers
Steve
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx1="library://ns.adobe.com/flex/halo"
                                 minWidth="1024" minHeight="768" creationComplete="init()" viewSourceURL="srcview/index.html" xmlns:mx="library://ns.adobe.com/flex/mx">
          <fx:Script>
                    <![CDATA[
                              import mx.core.UIComponent;
                              import com.modestmaps.TweenMap;
                              import com.modestmaps.mapproviders.OpenStreetMapProvider;
                              import com.modestmaps.geo.Location;
                              import com.modestmaps.extras.ZoomSlider;
                              import com.modestmaps.extras.HandCursor;
                              [Bindable]private var _map:TweenMap;
                              private var _mapUI:UIComponent;
                              [Bindable]private var _initialLat:Number = 40.668903;
                              [Bindable]private var _initialLong:Number = -111.680145;
                              [Bindable]private var _initialZoom:Number = 6;
                              private var _mouseWheelZoomCenter:Location;
                              private var _mouseWheelZoom:int;
                              private function init():void
                                        _map = new TweenMap(mappanel.width, mappanel.height, true, new OpenStreetMapProvider());
                                        _map.setCenterZoom(new Location(_initialLat, _initialLong), _initialZoom);
                                        mapCore();
                              private function mapCore():void
                                        _map.addEventListener(MouseEvent.MOUSE_WHEEL, mouseWheelHandler);
                                        _mapUI = new UIComponent();
                                        _mapUI.addChild(_map);
                                        var zoomslider:ZoomSlider = new ZoomSlider(_map);
                                        zoomslider.x = mappanel.width - zoomslider.width*2;
                                        zoomslider.y = 30;
                                        _mapUI.addChild(zoomslider);
                                        var handcursor:HandCursor = new HandCursor(_map);
                                        _mapUI.addChild(handcursor);
                                        mappanel.addElement(_mapUI);
                              private function mouseWheelHandler(e:MouseEvent):void {
                                        if (e.delta < 0) {
                                                  _map.zoomOut();
                                        else if (e.delta > 0) {
                                                  _map.zoomIn();
                                        _mouseWheelZoomCenter = _map.getCenter();
                                        _mouseWheelZoom = _map.getZoom();
                    ]]>
          </fx:Script>
          <s:BorderContainer id="mappanel" width="100%" height="97%"/>
</s:Application>

Technically, it's Javascript, not Java :) TOTALLY different beasts. I wish they'd never named it Javascript, it's ambiguous. So anyway, on to the point of the whole thing...
If you want quotes in your values, you'll need to write a function to replace " with \", and pass the values through it. So instead of javascript:passBack('#ENAME#','#JOB#','#SAL#'); you would have javascript:passBack(addslashes('#ENAME#'),addslashes('#JOB#'),addslashes('#SAL#'));. That would mean that ABC"DEF"GH would be passed to the function as ABC\"DEF\"GH and your quotes would stay intact. Search around on the internet for more specifics as to how to pass double quotes in javascript by using backslashes.
~Jer

Problem in linux with flex

Hi,
             I'm new to linux with flex,am using Eclipse 3.5 flex builder 3 installing perfectly but when i'am creating flex application it is showin Assertion failed error.
org.eclipse.jface.util.Assert$AssertionFailedException: Assertion failed:
    at org.eclipse.jface.util.Assert.isTrue(Assert.java:179)
    at org.eclipse.jface.util.Assert.isTrue(Assert.java:164)
    at com.adobe.flexbuilder.editors.derived.editor.FlexMultiPageEditorPart.setActivePage(FlexMu ltiPageEditorPart.java:569)
    at com.adobe.flexbuilder.editors.common.editor.CodeAndDesignEditor.setActivePage(CodeAndDesi gnEditor.java:647)
    at com.adobe.flexbuilder.editors.mxml.MXMLEditor.setActivePage(MXMLEditor.java:487)
    at com.adobe.flexbuilder.editors.derived.editor.FlexMultiPageEditorPart.createPartControl(Fl exMultiPageEditorPart.java:235)
    at com.adobe.flexbuilder.editors.common.editor.CodeAndDesignEditor.createPartControl(CodeAnd DesignEditor.java:162)
    at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:662)
    at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:462)
    at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595)
    at org.eclipse.ui.internal.PartPane.setVisible(PartPane.java:313)
    at org.eclipse.ui.internal.presentations.PresentablePart.setVisible(PresentablePart.java:180 )
    at org.eclipse.ui.internal.presentations.util.PresentablePartFolder.select(PresentablePartFo lder.java:270)
    at org.eclipse.ui.internal.presentations.util.LeftToRightTabOrder.select(LeftToRightTabOrder .java:65)
    at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.selectPart(TabbedStack Presentation.java:473)
    at org.eclipse.ui.internal.PartStack.refreshPresentationSelection(PartStack.java:1256)
    at org.eclipse.ui.internal.PartStack.setSelection(PartStack.java:1209)
    at org.eclipse.ui.internal.PartStack.showPart(PartStack.java:1608)
    at org.eclipse.ui.internal.PartStack.add(PartStack.java:499)
    at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:103)
    at org.eclipse.ui.internal.PartStack.add(PartStack.java:485)
    at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:112)
    at org.eclipse.ui.internal.EditorSashContainer.addEditor(EditorSashContainer.java:63)
    at org.eclipse.ui.internal.EditorAreaHelper.addToLayout(EditorAreaHelper.java:225)
    at org.eclipse.ui.internal.EditorAreaHelper.addEditor(EditorAreaHelper.java:213)
    at org.eclipse.ui.internal.EditorManager.createEditorTab(EditorManager.java:778)
    at org.eclipse.ui.internal.EditorManager.openEditorFromDescriptor(EditorManager.java:677)
    at org.eclipse.ui.internal.EditorManager.openEditor(EditorManager.java:638)
    at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2854)
    at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2762)
    at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:2754)
    at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2705)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
    at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2701)
    at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2685)
    at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2676)
    at org.eclipse.ui.ide.IDE.openEditor(IDE.java:651)
    at org.eclipse.ui.ide.IDE.openEditor(IDE.java:610)
    at org.eclipse.ui.actions.OpenFileAction.openFile(OpenFileAction.java:99)
    at org.eclipse.ui.actions.OpenSystemEditorAction.run(OpenSystemEditorAction.java:99)
    at org.eclipse.ui.views.navigator.OpenActionGroup.runDefaultAction(OpenActionGroup.java:133)
    at org.eclipse.ui.views.navigator.MainActionGroup.runDefaultAction(MainActionGroup.java:330)
    at org.eclipse.ui.views.navigator.ResourceNavigator.handleOpen(ResourceNavigator.java:787)
    at org.eclipse.ui.views.navigator.ResourceNavigator$6.open(ResourceNavigator.java:499)
    at org.eclipse.ui.OpenAndLinkWithEditorHelper$InternalListener.open(OpenAndLinkWithEditorHel per.java:48)
    at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:842)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.core.runtime.Platform.run(Platform.java:888)
    at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:48)
    at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
    at org.eclipse.jface.viewers.StructuredViewer.fireOpen(StructuredViewer.java:840)
    at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:1101)
    at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:1205)
    at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:264)
    at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:258)
    at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:298)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1176)
    at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3493)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3112)
    at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2405)
    at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369)
    at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221)
    at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
    at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLau ncher.java:110)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.jav a:79)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:368)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:559)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1311)
am unable understand this error

Mario,
Open Source drivers for our DAQ products are developed by the Comedi project. It should be noted that these drivers may not contain the full functionality of the NI-DAQ driver available for E Series devices under the various Windows and Mac operating systems.
For information regarding the Comedi Project please see http://stm.lbl.gov/comedi. Support for the Comedi drivers is available through the Comedi mailing list. Please contact the Comedi mailing list for questions regarding this Open Source driver.
For more information on National Instruments Measurement and Automation products for linux, see http://www.ni.com/linux.
Regards,
Justin Britten
Applications Engineer
National Instruments

Java with flex

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