Frameworks for Fat client development

Hi Folks,
Can someone suggest a couple of frameworks that can used for developing think client UI in java. We are working on multiple options we have to choose lime SWINGS, JFaces etc... please suggest if you have any idea.
Ramesh.

jwenting wrote:
georgemc wrote:
wpafbuser1 wrote:
georgemc wrote:
wpafbuser1 wrote:
Echo2Isn't that a rich web framework, though? Not that it matters now, since the OP has clearly been taken up by aliens, never to be heard from againYeah, but everyone wants everything webified these days so I thought I'd throw that in the mix. It's also a no install (so is Web Starting a Swing app in the opinion of some). But whatever, I shouldn't have ressurected that thread. My bad.If you read the OP, the technologies he suggests are thick client ones, I just ran with that. No harm suggesting rich web too I guess though
Webstart can be a no-install, but it depends very much on the situation. Our main product is Webstart, but it's certainly not a no-install.rich web is getting ever fatter...
A lean Swing application talking to a web serice layer may well be thinner than a bulky web app doing tons of Javascript processing...And probably more robust, too. Unit-testing AJAX is a b!tch, and I bet the majority of people "writing" it don't even bother

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package com.nst.clientcomp;
import javax.swing.JFrame;
import javax.swing.JPanel;
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protected JPanel panel;
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Vicky

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Fat Client-Web based architecture design help ?????

Hellow experts
i have recently joined a java project
which is a fat client-web based application.
clients can work from any location or place using the internet
they will connect to the web server which will be provide the data
to the clients application
i am working on the improvement of architecture n design of the project
pls help me in deciding the best and the fastest way to develop this application further.
i am designing a framework based on my experience and
am also doing some research on whats latest which can accelerate
and improve the development process.
here's what i have and want to know what u think abt it.
pls suggest some new good frameworks if you are aware of.
Technologies to be used
Fat client front end : Java Swings
Web server : Tomcat,Struts
Database : Mysql
FrameWorks
Client side
XXXView.Java(is the GUI layer) (where xxx is any module specific name)
|
XXXWebHandle.java(this java file will have the code to
connect to the webserver using the apache httpclient)
it will call a struts action file specifically
the data collected from the gui components will be transformed
into xml and sent to the struts action file.
Server Side
xxxaction.java(this file will parse the xml data from client side
and save it to the datbase using jdbc statements
it will also retrive data and metadata from database using jdbc queries
and convert it into xml and send it back as http response to the XXXwebhandle.java
which then parses back the xml data and puts it on the GUI components of XXXview.java files.
THe Problems
1) the conversion of database query resultset to xml at server and the xml back to fields data
takes a lot of time and is cumbersome to code as we need code the xml
defination pattern for every data exchange between server and client.
we need to remove XML .................is it possible????
can we send data back to client as java objects and if yes then how??.
2) right now we are making JDBC calls to mysql database using a common Utility class file
created for handling all kinds of sql statements and return the data via a hashtable object.
We need to use a ORM tool here............dont know which to use and how to use.
heard of hibernate and EJB.pls suggest which one to use
Overall i would appreciate if someone can suggest me good architecture.
is there any framework readily available for developing these kinda apps
pls guide or give me links where i can get info abt this.
thanks
Jags

Hellow experts
i have recently joined a java project
which is a fat client-web based application.
clients can work from any location or place using the
internet
they will connect to the web server which will be
provide the data
to the clients application
Okay. As an aside, you can 'fatten' up a standard web page with technologies such as Pushlets or Ajax.
i am working on the improvement of architecture n
design of the project
pls help me in deciding the best and the fastest way
to develop this application further.
i am designing a framework based on my experience and
am also doing some research on whats latest which can
accelerate
and improve the development process.
here's what i have and want to know what u think abt
it.
pls suggest some new good frameworks if you are aware
of.
Technologies to be used
Fat client front end : Java Swings
Web server : Tomcat,Struts
Database : Mysql
IMO, you should take a look at Eclipse's SWT in addition to Java's Swing. SWT has outstanding performance and looks native. Struts is not a web server. Place that entry instead down in 'frameworks'. MySQL is a good database, but I prefer Postgres, which is also free and implements more of ANSI SQL.
FrameWorks
Place Struts here. Also consider using Spring on your server side. BTW, what is Struts doing other than acting as a Controller? Presumably your fat client is the View. No?
Client side
XXXView.Java(is the GUI layer) (where xxx is any
module specific name)
|
XXXWebHandle.java(this java file will have the code
to
connect to the webserver using the apache
httpclient)
it will call a struts action file specifically
the data collected from the gui components will be
transformed
into xml and sent to the struts action file.
Any thoughts of using either RMI, SOAP or JAXB since you will have Java objects on both ends of client and server?
Server Side
xxxaction.java(this file will parse the xml data from
client side
and save it to the datbase using jdbc statements
it will also retrive data and metadata from database
using jdbc queries
and convert it into xml and send it back as http
response to the XXXwebhandle.java
which then parses back the xml data and puts it on
the GUI components of XXXview.java files.
So, a database exists. Fairly normal stuff there.
THe Problems
1) the conversion of database query resultset to xml
at server and the xml back to fields data
takes a lot of time and is cumbersome to code as we
need code the xml
defination pattern for every data exchange between
server and client.
Again, take a look at JAXB, SOAP and/or XMLBeans.
we need to remove XML .................is it
possible???? Yes
can we send data back to client as java objects and
if yes then how??.RMI + Java Serialization or JAXB/SOAP/XMLBeans.
2) right now we are making JDBC calls to mysql
database using a common Utility class file
created for handling all kinds of sql statements and
return the data via a hashtable object.
No, no no. Hashtable (and all Maps) have no type-safety. You can introduce lots of programming errors casting from Object to another type. It is far better to create an actual Java object that will hold the data. It seems to take more time, but you will have far fewer runtime errors in your application during development, which IMO, actually speeds up the process overall.
We need to use a ORM tool here............dont know
which to use and how to use.
heard of hibernate and EJB.pls suggest which one to
use
Hibernate and, to a lesser extent, JDO are popular now.
Overall i would appreciate if someone can suggest me
good architecture.
is there any framework readily available for
developing these kinda apps
pls guide or give me links where i can get info abt
this.
Rapidly? Hard to say. I would steer clear of full blown J2EE with EJB's or MDB's if you want to speed up development. Ruby on Rails also generates some press for rapidly putting sites together.
thanks
JagsYou are welcome. Best of luck.
- Saish

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Selection of a mobile framework - for enterprise mobility app.

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Sukanta Rudra,
I love to work with SAP products and so i m in SAP. Having worked on several other mobile applications before , i can clearly see the ease in development of Enterprise applications using SAP products portfolio.
Often I have seem blogs in SCN, advocating for frameworks other than that of SAP. No harm
Please mention the blogs as a reference for more understanding. I can always only see Cordova / appcelerator being the recommended platforms by SAP for cross platforms development.
SAP Partners with Adobe-Cordova/phonegap , Appcelerator, Sencha (the three big players in cross platform development)
Developer Announcement: Third Party Tools
SAP Drives Openness and Choice for Millions of Mobile App Developers
More over i have worked mostly on all the three for a while and have experienced the ease in development with cordova.
Also the HWC (Hybrid Web Container ) - the former way for developing hybrid applications on SAP Mobile Platform till 2.x has Cordova/phonegap plugins inbuilt in it. Literally it followed the approch of Cordova and ui framework was of Jquery Mobile .
But Now with the release of SMP 3.X things are completely under the control of developer. There are no restrictions to use a particular framework for development and developers are free to use their choice for development (SMP 3.x highlights BYOT - Bring Your Own Tools for Developers).
Adding to above , just would like to mention there are few products mainly focused and developed on cordova technology (KAPSEL plugins, Appbuilder, Fiori Client , River RDE in future integrating Kapsel plugins)
SMP 3.x is all open for developers , we are free to use any platform as per our requirements and convenience now.
PLease have a look at these videos on how SMP 3.x strategy stands for
My experience has been using Kony-SKY framework for developing the mobility apps (not mobile web). SKY plugins has been certified by SAP, to be used for developing mobility applications. (SAP does embrace other vendors). My questions pointed out above, was out of the struggles we had while implementing the project. Many at times, I felt I was reinventing the same tools while integrating into the SAP backends.
I am not a Kony guy, but will surely look into this and would check if i can help you.But out of my experience with Cordova /HWC/ Kapsel , it was satisfactory.
I presume you might have used/using SAP's Fiori apps, SAPUI5, mobile architecture and would like to gather some more information very specific to SAP's environment. I have no experience now on delivering apps using SAP's products. Maybe three months from now, I would get deep with 'SAP Fiori UX and SAP Screen Personas'. Maybe you could throw some light on few more queries.
Yeah , thanks to SAP for Fiori being out of License now and UI5 an Opensource. I have had the opportunity to also work and implement Fiori transnational applications and also develop Custom UI5 applications .
Note : Personas is really a good product , but on the down side is n't responsive in nature , so might not be a best fit for mobile devices
How are builds generated for different platforms? (Android uses.apk, Blackberry uses .cod, iPhone uses .ipa)
I can help you understand this with an Android Phone Gap project example
Typically Native Android apps are developed using Core Java.
Initially all the Core libraries of Android and java are loaded with import command
import android.os.Bundle;
Now Cordova libraries are added to existing libraries
import android.os.Bundle;
import org.apache.cordova.*;
and Android uses the concept activities and layout for screen navigation and designing.
and by default any android project should have an activity and layout for launching the application, for which the code looks something similar to this
setContentView(R.layout.main);
so , a Relative layout is initially launched as main view.
As mentioned in the blog in " How does it actually work section " cordova loads web views instead of the native layouts /activities
How Does it actually work ?
Technically the User Interface of a Cordova Application is effectively a WebView that occupies the complete screen and runs in the native Container. So , it is the same web view that is used by the Native Operating systems. This purely means that only the Native Containers changes according to the OS and internally the web pages remain the same. (Since the browser rendering of webpages are different for each operating systems)
For       IOS it is UIWebView class
             Android it is in android.webkit.webview
             Windows it is WebViewClass and the similar goes to other OS .
This line of code is responsible for that
super.loadUrl("file:///android_asset/www/index.html");
our developed web applications should reside in the above mentioned location to access as any native web view
also few other hacks are to be done at
public class [appname]Activity extends Activity {
to
public class [appname] Activity extends DroidGap {
and to the android manifest file accordingly to get the permissions
Now internally the android applications works just like any native applications but accessing the web applications files in the web view. and just generates the .apk accordingly to the application.
Say a query is executed from a mobility app, say the result set is some 1000 rows, how does the data fetch mechanism work. Do you use some delta data fetch mechanism?
if i were to handle this , would try to filter this out to sections. Lets imagine huge PO s are resulted upon a query, i would try to create some sections/categories for Unreleased/Open/Approved /... and again try to perform some dynamic filter operations on each category selection/ or make use of pagination property to move across the items/records
Also user would not be interested to scroll and search for his item from a huge collection of items.
More over for handling of huge records Native approach is preferred to Hybrid/mobile web.
When a mobility connection snaps while the user is using the app, does the app stop immediately? Or rather how is user informed about non availability of the network connection?
Lets assume two cases here
1) Complete Online application
2) Online Offline Application
1) If user is trying to access the data from the application , since this being an online application , a proper network connectivity id to be checked properly before making any request .
for phone gap/cordova , Network Object helps us to check if network connectivity is available to make any request. else throw an alert to check the connectivity/ turn on the connectivity.
Similarly a Connectivity manager API exists for Android . Here is an example. Same would apply for other OS also.
2) For online - offline application . user wouldn't be able to read records from back end , but can perform other necessary operations on the device, and once the device gets connected to network, can sync with the back end . An alert should be thrown to inform the user about the loss in network connectivity and the limitations in accessing the data .
Build/release mechanism and subsequent tracking for mobility apps for periodic release of apps - say there would regular fixes to bugs, upgrades to framework SDK, device OSs might get upgraded - Is there a tool for tracking all these, etc
Yes. MDM tools are perfect fit for these. Afaria and Mocana are doing well now.
And, anything that you would like to share, related to SAPs environment, that makes implementation easier.
SAP Mobility is really booming and will grow , dominate in enterprise mobility in future.
For our understanding:
Let us know for more.
Edit :
IG is a part of SMP 3 but not a separate component as NWG
Regards
Virinchy
Message was edited by: Virinchy P

Need advise on selecting the IDE for swing UI development

Hi,
I'm looking for a best IDE for developing swing application.
Our application is a Rich Desktop Client Application which will have more than one hunderd screens. And all the business logics will be J2EE EJB services.
At the initial stage, we thought of using the .net winform technology as Desktop Rich GUI for its best look & feel and productivity perspective, by invoking the business services thru webservices.
But later, we decided to use swing components which are somewhat promising now-a-days. This will avoid the multi-platform issues, maintainability and perfomance difficulties.
I would be so much grateful, if somebody could share me their experience on deciding the IDE which would be the best for Swing development currently.
If any one has the list of different swing UI builder IDE and the feedback list correspondingly, could you post them?
..Thiruppathy.R

Thanks All!!
I experienced both NetBeans and Eclipse recently. I did not work in-depth in any of these IDEs for swing application. All the observations are from my first impression on them.
Please find the below are my feedback on both of these IDEs from my experience in the swing application development perspective :
Net Beans
Advantages:
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Disadvantages:
1. I am not allowed to change the generated code in the IDE.
2. I can't change the component name or event method name, other than the IDE generated one.
3. Additional Design codes will be reflected only at the runtime, but not at the design time. Here the developer is loosing the flexibility of using the code changes that impact the design.
Eclipse - Visual Editor
Advantages:
1. Source and Design mode, both can be viewed simultaneously.
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Disadvantages:
1. I can't add any custom components to the palette to make it available for ready use. Only option is 'Choose Bean' to add the custom components. So I should remember the component name everytime while adding in the panel / frame.
I also tried few commercial plugins with Eclipse. Given below is my feedback from my experience,
1. Eclipse - JFormDesigner
Advantage:
1. It provides Palette Manager option and very smart in the swing components alignment settings.
DisAdvantages:
1. For the design mode, it uses JFD file and later java code will be generated from this JFD file. So what you are seeing in the design mode is JFD file, not our java source. Developer have no option to see the source changes in the design mode.
2. It is a commercial product.
2. Eclipse -> Jigloo
Advantage:
1. Easy to use.
2. Custom swing components can be added the Palette.
Disadvantage:
1. It is similar to Eclipse - Visual Editor, but the difference is in the look and feel of the palette and event handlings.
2. For commercial purpose, you have to purchase it.
I also tried the JBuilder, but seems that it provides the Eclipse - Visual Editor for Swing Application development.
I didn't try the IntelliJ IDE yet, for swing application development. Some of the forum responses tells that IntelliJ IDE is very powerful, but not recommended for swing application development.
Eclipse - Visual Editor is promissing and it's open source. As I'm beginner to the swing development, I might have some short vision on some of the above said items.
If somebody have a better comparison sheet and could share with us, I would be grateful.
..Thiruppathy.R

Want to use the Entity Framework for Oracle

Currently our web applications are installed on Windows 2003 Server, IIS 6.0. Yes, this seems like the dark ages...years behind. They have an older version of the Oracle Client on the machine (11.0.1). This version does not support Oracle.DataAccess 4.x. .NET Framework 4.0 is installed on the Windows 2003 server. This version also does not support the Entity Framework.
However, my development environment does not have any Oracle Client installed. I am just using the latest version of ODAC/ODP.NET with Visual Studio 2010. I am able to create apps locally with the Entity Framework but unfortunately cannot get them to work on the server because there of the older Oracle Client on that machine. Also there are approx. 50 applications on that server that are accessing this old version of OracleDataAccess 2.116.0 with references hard coded in the web.config. What's the best practice for dealing with legacy applications that are accessing older versions of Oracle?
In short, what do I need to do in order to upgrade to the version of Oracle that will support the Entity Framework while still supporting legacy apps? Do I go for an Oracle Client upgrade or I just merely get the latest version of ODAC/ODP.NET installed on that server?
Thanks!
Edited by: imterpsfan2 on Mar 7, 2013 12:01 PM

imterpsfan2 wrote:
What I would probably like to do is somehow set the dll directory to my local bin directory and just put all the .dlls for the most recent ODP.NET in my app and leave the existing applications as they are until I can migrate them.
I've seen examples of this but doesn't seem to work for me.You can do that by having both Oracle clients installed, and using the DLLPath configuration option to force the applications to use the one you want.
That said, the next version of the managed client is going to support working in Entity Framework, and that is just an assembly you can include in the project with no Oracle installation at all. So really, the best answer is going to be to use that once they release it.
(Also - most of the time something compiled for Oracle 11.x will work in 11.2.0.3 without doing anything. The 11.2.0.3 installer adds binding redirects to itself from older versions, provided you were loading from the GAC.)

Looking for a client appointment app

I'm looking for an application for a friend who is a personal trainer. And if such an application doesn't exist, I'm considering writing one (I'm a software engineer)
The application would maintain a database of clients, and a schedule of appointments with them.
For each client, the following data needs to be maintained: contact information, current statistics (weight, body fat percentage, strength) as well as a history of statistics. Clients pay for a package of sessions in advance, and the app would keep track of how many prepaid sessions remain, updating that number with each scheduled appointment and each payment. Every client has recurring appointments, several per week, but rescheduling is common, and needs to be easy. And the app should be able to print out a year report for taxes.
I was thinking that it should interface with Address Book for contact information, and Calendar for appointments.
The main app should run on Snow Leopard, but mobile access through an iOS 4 sister app would be great. (Although if it works with Address Book and Calendar, their synchronization through MobileMe might be sufficient)
Is there any such thing? There must be other trainers, and other professionals with similar needs.
-Ron.

Hi Ron,
was there a template for bento that met all of the requirements that you detailed? My wife is a personal trainer and we've been looking for similar functionality in an app. Currently she's using the calendar app and contact book, but as you say, rescheduling is frequent and tracking remaining sessions would be very helpful. Let me know,
Paul

How to manage one wsp and dll for multiple clients in farm environment

1. There is a product which is developed using C sharp , jquery,CSS and sharepoint object models which have been packaged into .wsp file. Whenever we introduce new functionality to the product we used to branch the
previous code as a version , say Version 1.0 and new functionality of the product will in another solution. This is how we are managing the code in TFS as versions. Each newer version will have new functionalities. We do not give latest functionality for all
the clients. Each client is having its own version of functionality. Technically in order to access the functionality, the wsp solution should be present in the solution repository which is available in SharePoint central administrator site. This solution
will be deployed on the client’s site. We are following the above process in SharePoint standalone installation where we used to purchase dedicated server per client and installed sql, SharePoint foundation 2010 as standalone installation and adding the client
related version of the code to the solution repository. Later host on the site which is created for that client purpose. This process is same for all the clients where we purchase individual server for each client .
Now we want to host our product in farm environment of sharepoint foundation 2010 where we are going to try 3 level architecture.
• SQL Server-In this sever we are going to install sql server 2008R2 standard edition. Which should serve the database service for all the web applications/sitecollections which we are going to create in Web front end server.
• Application server- In this server we are going to install the sharepoint as farm and will install search server express for serving search functionality for our product
• Web front end server- In this server we are going to add this server to Sharepoint farm which we have created in application server. Here we are going to create web applications and site collections for all the clients.
In this scenario how to manage multiple versions of same wsp solution?
Another major issue w.r.t the architecture of the product and new approach for client deployment as follow.We have CSS, jquery files for serving the functionality.These files have been mapped to 14 hive folder.If any changes we do one of the jquery file or
css file which is meant for latest version and not for old version, then how to manage this new functionality for that particular css or jquery file in 14 hive folder, since there is only one 14 hive folder. What is the best practice to make this happen? Another
thing is, how to manage dll files for individual client?

It sounds like you have a farm scoped solution at work. In that case you can only have a single instance of it per farm, you'd have to branch each version so they appear to be seperate solutions entirely (thus ruining your clients upgrade process).
Bluntly i don't think a single farm can manage all your user environments.

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