Java :: Flex Session Parameters In Remote Object BlazeDS?
Jun 23, 2011
I have my flex object embedded to JSP page.The JSP page retrieves user information like user name and group from portal profile object and stores in http session parameters. The flex Object makes a remote call to Employee.class to perform persona based operation.
I retrieved the session id in JSP and also in the Employee.class both are same. But I am not able to retrieve the username stored in the http session from FlexSession. I read in the internet that the FelxSession will hold all httpSession information as well. It's always coming as null. Correct me if I am wrong.
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Apr 16, 2011
Am facing issue with session timeout. Say for instance, the user logs into the application and he waits for 30 mins (session timeout time) and then tries to get a service through remote object.Ideally speaking, since the session has timeout the user shouldn't be able to hit the remote object, but this is happening the other way round.
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Nov 5, 2009
I seem to be getting the following error when I try to access a Remote Java class (on Spring/BlazeDS) from the Flex/Cairngorm application. I am going crazy at the moment trying to see what is wrong
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Jul 24, 2011
I am working on an Adobe Flex front-end with a Java back-end using JPA for persistence. he protocol I am using is remote objects (AMF) implemented with BlazeDS.I started out with a service-facade and entity DAOs, but without any specific DTOs. The same POJOs, the domain objects, were passed in the service-facade as those used as DTOs passed to the Hibernate DAOs.However, the latest few days I have been thinking whether this is a good approach or not. The latest article on the subject I read was this one:Interesting JPA Pattern blogThe situation:Say I have POJO Book with a unidirection ManyToOne relation with the POJO Category (i.e. each book may only be associated with one category, but the same category may be associated with many books). I see some alternatives:Alternative 1:I expose a method/operation addUpdateBook(Book book). In the implementation of this operation I add/update both the book and the referenced category.
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Jul 16, 2010
I tried with flex and java in the backend. In this, I am able to upload files till 100 MB using remote object (blazeDs) where we will read the file as byte array and send it to the java method. If the file size exceeds after that, then I get the run time error in IE.
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Feb 8, 2011
I'm building an application using Flex 4 + Spring Blazeds Integration 1.5 + Spring 3.0.5 + Hibernate running on jboss-5.1.0.GA. I create a simple login form, and when a submit a string via remote object it works fine. But when a try to use an Object its simple doesn't work. Funny is that it even don't shows the Alert that a put! Also, if I remove the tag "RemoteClass" it sends to java but an error occur. Bellow is the code and configs.
My java class:
package com.controlefinanceiro.entities;
// imports
@Entity
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Jan 24, 2012
I have a custom java class which has an ArrayList and corresponding to it have a custom vo class which has ArrayCollection (in Flex).I want to return data from Java to flex.Every variable in java is getting mapped to vo perfectly except for ArrayList.When trying to retrive When trying to retrive exposureUSDList (which is an arrayList) in flex I am getting empty ArrayCollection. It is not getting mapped properlyPlease find my code below:
Flex Code:
package com.example.vo
{
[code].....
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Jul 25, 2011
my aim is to catch when the session is invalidated and send message to all destination that the FlexClient subscribed that the client wiht id .... has disconnected. I implemented a service which listens for
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Problem is that i want to catch messageClientDestroyed and send to that destination a message that the user has disconnected.But blazeds destroys messageClient when you add a subtopic.So how to understand that if session is invalidated and all messageClient are being destroyed or the user just enter another place and add a subtopic to his consumer. I'am also open for other solutions to implement that mechanism.When user disconnected by session timeout or closed the site browser etc. i wanna catch it and send a message to subscribed destinations.
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Mar 24, 2010
I am using Flex 3 and make a call through a RemoteObject to a Java 1.6 method and exposed with BlazeDS and Spring 2.5.5 Integration over a SecureAMFChannel. The ActionScript is as follows (this code is an example of the real thing which is on a separate dev network);
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Aug 13, 2010
i am working on a flex+java combined project.My IDE and computer configuration is as follows:
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When i make a small change in Flex code (eg, reposition of a button...anything), and run the project on server, it does make any change on output. Actually it depends on my luck... because it makes change in output randomly.what is is happening? tried rebuild, republish, clean , restart server, restarting the IDE, restarting the computer all available feature i could think. Also, i created a simple flex project on IDE and compiled it..... everything is compiled and displayed on output.
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Dec 7, 2010
Right away i just try to explain my problem: Using BlazeDS i got the following Javaclasses:
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Then i got a Flex service class calling BlazeDS and executing the getCategories java method. Since Flash dosn't seem to understand typed arrays, the result from that method which i get back in flex is a simple array of untyped objects (the mapping dosn't seem to work here, even tought the class category exists in flex and has the same properties).
thats the first thing. but however, i'm converting the untyped objects manually into objects of the category.as class. the second thing is that categories have child-categories within the java object, which are also ArrayLists of the type category.java. the problem about that: my result event object only contains the first level of categories, looking into them the children are allways null. i dunno why they are empty, since they ARE part of the java object category.
and the third thing (the strangest by fast), you maybe noticed i named the properties of the category.java class strange, like idCat and nameTest instead of simply id and name. why that? because the property names of my flex result objects dont seem to change when i change the java objects properties names (result object properties are named "id" and "name" but the java class object properties are named "idCAT" and "nameTEST"). that it REALLY strange, since if i set the properties, like you see at nameTEST = "TESTNAME" it IS recogniced by flex, only the proertyNAMES dont seem to be recognized at all.
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Oct 30, 2009
Any standard way to keep alive the http session as long user has open the flex app in the browser? I played around with the polling mechanism of blazeds. But it had no affect on the http session.
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Mar 23, 2010
I'm coding a web app in flex blazeds and Java. I installed the Eclipse plugins for using WTP mixed project. I'm using flex's server that uses an emulate of tomcat when i ran my flex service the web app got the datas, everythings is ok. the problem is when i copy the project with all files generated by flex in my tomcat or the blazeds's tomcat, it doesn't work, this is becasue i want to implement my app on a server the error is:[code]
i don't know why tomcat doesn't find the class of flex.messaging.endpoints.AMFEndpoint that is used for my-amf 'URL...'. all works well in the emulated server that flex has.
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Aug 3, 2011
I am building flex application and using blazeDS to pass objects between java and actionscript. I have the following java classes (Property that extends BaseProperty) and their actionscript representation. When I pass the java Property object to the actionscript using blazeDS and trying to cast it as action scipt BaseProperty object I get null. Why? It's important to mention that if I cast it as Property everything is fine.
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Jun 14, 2010
I am new to Flex. I am just wondering how to manage session and cookies for logging in, logging off in Flex? I am using Flex HttpService and Java servlet.
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May 20, 2011
My name is Rahul.I am new to flex. I am trying to integrate flex with blazeds using java. I have written some code as per my knowledge. But it is not connecting to database. I am pasting my code here.Please look into this and let me know if i have done any mistakes over there:
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If i try to execute the Feedback.mxml then i am getting "Sorry your feedback is not entered" as output.I dont know where the problem is.I think flex is connected successfully but problem is in java code.
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Mar 16, 2012
I'm starting a flex+blazeds project. First I coded some server classes, and modified xmls (in WEB-INF). Now I want to test it with client. There (in Flash Builder) it's needed to specify path to folder where server lives. The problem is that I cannot find it. In the same time [URL] is found in browser.
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Apr 30, 2011
I'm developing a Flex application that employs BlazeDS with Tomcat on the backend. The Flex client authenticates through the ChannelSet which in turn creates an authenticated session on Tomcat. From then on, all of the client calls are authenticated transparently. However, I have a regular HttpServlet for uploading files, which does not get the session information from the BlazeDS servlets.
Is there a way that I can get the Principal object in the HttpServlet? I know that I can get the session ID from the BlazeDS servlet, pass it to the client, and then send that along with the upload request.
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Jun 4, 2010
I have a java web application. When I log in to that application and navigate to a jsp which has flex chart embeded into it, the chart displayes just fine. I am using blaze ds remoting object mechanism. But when I want to navigate to a different page, it logs me out of application since the login session is lost.
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Aug 14, 2009
I using messaging in Flex-BlazeDS. When the AIR client starts it connects to a destination and a specific subtopic. During runtime, the user can use a combo box to subscribe to different sets of live data coming in, this combo box change event changes the subtopic by:
messagingConsumer.subtopic = subtopicComboBox.selectedLabel;
messagingProducer.subtopic = subtopicComboBox.selectedLabel;
messagingConsumer.subscribe();
A message is then sent to the server with the new subtopic name as well so the server knows to send to a new subtopic. This whole mechanism seems very glitchy and I'm wondering if anyone else has tried this and succeeded? Most times it works the first time and the after that either the messages dont get sent or I get server errors like:
[BlazeDS]Endpoint with id 'my-streaming-amf' cannot service the streaming request as either the supplied FlexClient id 'B07F3285-A408-816E-4697-F13F9B17E32C is not valid, or the FlexClient with that id is not valid.
Also sometimes when I change subtopics it will cause the FlexSession and FlexClient to be destroyed instead of just the MessageClient. Once that FlexSession gets destroyed it messes up all kinds of things including logging out the user.
Perhaps I'm over complicating things by changing subtopics to listen to different sets of live data, if anyone has any other ideas on how to accomplish dynamic changing of destinations or subtopics please list those as well.
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Sep 30, 2009
When I pass a Actionscript Value Object that contains a Date variable using BlazeDS it is not getting transferring as a java.util.Date object correctly. When the setBaseDatefunction gets called on the Java side the baseDate value is NULL. The weird thing is if I rename the variable on the Java side to private Date date; and create a public void setDate( Date date) function it works. The problem is I need to pass 2 different dates so I can't uses this work around.
Here are my 2 classes:
AS3
package com.shua.flex.valueobjects {
[Bindable]
[RemoteClass(alias='com.shua.valueObjects.myVO')]
public class myVO {
public var label:String;
public var endDate:Date;
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Feb 24, 2010
What's the best way to secure a Flex-BlazeDS application? I've googled it an several solutions came up.UPDATE after question from jsight:Flex would login, so on the RemoteObject I'll set Credentials I don't know if there comes authentication and authorization with BlazeDS (WebORB for instance does and WebORB looked at BlazeDS for their product) SSL not needed 've seen some links on the internet talking about spring security, so I'll check that out.
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Mar 23, 2010
I developed an application using flex+java+blazeds with tomcat that provide flex enviroment.I want to deploy my application using tomcat but I can't, how can I deploy my app?
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Aug 29, 2010
We have a Flex-BlazeDS-Spring-JMS application. The issue is sometimes we get a Blazeds error: NoSuchMethodException. It is not able to find the Java service. The weird issue with this it does not happen all the item...1 time it goes through and returns the result, the 2nd time it fails, 3rd time fails and so on. Also not all methods fail, only 2 method calls fail.
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Oct 29, 2010
My team are putting together a proof-of-concept Flex application sitting on top of a Spring-based server using BlazeDS.We do quite a lot of date calculations, so we use Joda Time extensively throughout the code and in our domain model.We're now trying to figure out how we can continue to use Joda Time in our DTOs that are sent back-and-forth with the Flex frontend via BlazeDS.
Our goal is to use the Actionscript 3 data type Date on the Flex side and have that map to our use of Joda time's DateTime, LocalDate and LocalTime types on the Java side.We can solve the problem of converting Actionscript 3's Date type when calling Java with a custom type marshaller plugged into BlazeDS, but this appears to only be invoked for the Flex->Java/BlazeDS direction and not for the Java/BlazeDS->Flex direction.
I'm now looking at custom PropertyProxy implementations for BlazeDS, but this doesn't look like the right thing either.The other idea was to implement Externalizable on our Java DTOs, but this seems like too much work, especially when I look at the BlazeDS rival GraniteDS and that shows plugging in Joda Time support in their documentation with a simple type converter!
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Aug 19, 2011
I've noticed BlazeDS has certain things it does not support and it is often difficult to find this out. Ex: polymorphism is not.One must create methods with different names as methods with the same name with different parameters create a conflict.I'm trying to find out if BlazeDS does not support Java static and non-static inner classes.
public class UserDTO {
private String name;
private AddressDTO adddress;
private PhoneDTO phone;
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The example code above will compile and the getUser method will work. A call to the updateUser or updatePhone methods on the other hand results in a BlazeDS error. Is there a special way to use inner classes in Flex or are inner classes not supported?
Here is an example of the error messages produced:
[BlazeDS]Cannot create class of type 'com.test.dto.UserDTO.PhoneDTO'.
flex.messaging.MessageException: Cannot create class of type 'com.test.dto.UserDTO.PhoneDTO'. Type 'com.test.dto.UserDTO.PhoneDTO' not found.
Example Flex code:
var thisPhone:PhoneDTO = new PhoneDTO();
thisPhone.phoneNumber = "8885551212";
updateTagsResult.token = userService.updatePhone(thisPhone);
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Nov 5, 2009
I have a RemoteObject returning a 'Schedule' class. I've created a client side RemoteClass to map to it. All properties of the class instance are coming in fine. I just not clear on how I go about calling methods on the class. How would I call a setter on startdate?
package classes.remote {
[Bindable]
[RemoteClass(alias="com.site.data.schedule.Schedule")]
public class Schedule {
public var id:int;
public var modifydate:Date;
public var startdate:Date;
public var enddate:Date;
}}
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Jun 17, 2009
I've been trying to find the right configuration for supporting both http/s requests in a Flex app. I've read all the docs and they allude to doing something like the following:
<default-channels>
<channel ref="my-secure-amf">
<serialization>[code]..........
I'm running with Tomcat 5.5.17 and Java 5.The BlazeDS docs say this is the best practice. Is there a better way? With this config, there seems to be 2-3 retries associated with each channel defined in the default-channels element so it always takes ~20s before the my-amf channel connects via a http request. Is there a way to override the 2-3 retries to say, 1 retry for each channel?
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Nov 4, 2009
I am developing a IT Monitoring Dashboard for the company I work at. The system will primarily perform monitoring of files, databases and servers. There will be a small part of the system which will allow the users to configure static data about the system eg: file locations, server names etc...
So as the app. will be a dashboard a lot of the application will consist of publishing data to the flex client to update all the monitoring views. So there will be limited database activity ie: insert/update/deletes.
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Aug 27, 2010
I have Flex/AIR app that connects to a tomcat server via BlazeDS. I'm not finding that I have to integrate an old webapp (struts/jsp) and I'd like to keep that webapp untouched except for login, authentication and session handling. Also a 3rd java app that uses httpclient.
Currently I have some blazeDS remote objects to handle login/logout with a few RPC calls. In turn, FlexSession objects are created and handled. Is there a way to use httpclient and javascript to call those blazeds RPCs so I dont have to recode and have 3 different means to handle logins and sessions?
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