WebCenter Sites and Model–view–controller (MVC) framework

A customer of our started developing their sites using Webcenter Sites, they want to support additional functionality such as transaction management, exception handling, custom logging and so on. I was wondering if anyone has experience with the Model–view–controller (MVC) framework, they consider it an ideal candidate for these features. Has anyone here used the MVC framework in conjunction with WebCenter Sites to write additional java classes, facade layers and utilize the Spring controller to wire the same ? Are you aware of any other options available for this purpose ?
regards,
Pietro

Hi Pietro -
Using Sites IN a MVC framework is very difficult, because the entire context of WebCenter Sites is burned into the COM.FutureTense.Servlet.SContentServer servlet. You can't really work around that with any degree of reliability. Unfortunately, that means that dropping Sites into a pre-existing third party MVC framework doesn't really work.
There are a lot of good reasons for that, not the least of which is the two-tiered pagelet-level caching system that makes Sites so very fast at delivery... not that it's any consolation.
To deal with this some former colleagues of mine and I built the GST Site Foundation ("GSF") framework, which provides a Spring-like MVC container WITHIN sites, instead of the other way around. If you're familiar with Spring, you'll see patterns similar with the GSF. My current team and I have blogged about this extensively:
What is this whole GST Site Foundation thing? | Function1
Create a Simple "Contact Us" Form with GSF | Function1
How to Add Your Own DAO to the GSF Actions | Function1
The full stream is here: GSF | Function1
But ultimately, the special sauce is the following: in Sites, create an XML element that contains nothing but a <FTCS> tag, a <CALLJAVA> tag, and a closing </FTCS> tag. Your CALLJAVA will then call a class that implements the Seed or Seed2 interface, and from in there you have access to the (properly managed) ICS object where you can do all of your magic. You can then build a lightweight controller here to handle any action you can dream up:
https://github.com/dolfdijkstra/gst-foundation/blob/master/gsf-wra/src/main/java/com/fatwire/gst/foundation/controller/A…
Let me know if I can help!
Regards,
Tony

Similar Messages

Update methode in model-view-controller-pattern doesn't work!

I'm writing a program in Java which contains several classes. It must be possible to produce an array random which contains Human-objects and the Humans all have a date. In the program it must be possible to set the length of the array (the number of humans to be produced) and the age of the humans. In Dutch you can see this where is written: Aantal mensen (amount of humans) and 'Maximum leeftijd' (Maximum age). Here you can find an image of the graphical user interface: http://1.bp.blogspot.com/_-b63cYMGvdM/SUb2Y62xRWI/AAAAAAAAB1A/05RLjfzUMXI/s1600-h/straightselectiondemo.JPG
The problem I get is that use the model-view-controller-pattern. So I have a model which contains several methodes and this is written in a class which inherits form Observable. One methode is observed and this method is called 'produceerRandomArray()' (This means: produce random array). This method contains the following code:
public void produceerMensArray() throws NegativeValueException{
     this.modelmens = Mens.getRandomMensen(this.getAantalMensen(), this.getOuderdom());
for (int i = 0; i < this.modelmens.length; i++) {
          System.out.println(this.modelmens.toString());
this.setChanged();
this.notifyObservers();
Notice the methods setChanged() and notifyObservers. In the MVC-patterns, these methods are used because they keep an eye on what's happening in this class. If this method is called, the Observers will notice it.
So I have a button with the text 'Genereer' as you can see on the image. If you click on the button it should generate at random an array. I wrote a controller with the following code:
package kristofvanhooymissen.sorteren;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
/**Klasse GenereerListener.
* @author Kristof Van Hooymissen
public class GenereerController implements ActionListener {
     protected StraightSelectionModel model;
     /**Constructor.
     *@param model Een instantie van het model wordt aan de constructor meegegeven.
     public GenereerController(StraightSelectionModel model) {
          this.model = model;
     /**Methode uit de interface ActionListener.
     * Bevat code om de toepassing te sluiten.
     public void actionPerformed(ActionEvent arg0) {
     this.model=new StraightSelectionModel();
     try{
     this.model.produceerMensArray();
     } catch (NegativeValueException e){
          System.out.println("U gaf een negatieve waarde in!");
     this.model.setAantalMensen((Integer)NumberSpinnerPanel.mensen.getValue());
     this.model.setOuderdom((Integer)NumberSpinnerPanel.leeftijd.getValue());
StraighSelectionModel is of course my model class. Nevermind the methods setAantalMensen and setOuderdom. They are used to set the length of the array of human-objects and their age.
Okay. If I click the button my observers will notice it because of the setChanged and notifyObservers-methods. An update-methode in a class which implements Observer.
This method contains the follow code:
public void update(Observable arg0,Object arg1){
          System.out.println("Update-methode");
          Mens[] temp=this.model.getMensArray();
          for (int i = 0; i < temp.length; i++) {
               OnbehandeldeLijst.setTextArea(temp[i].toString()+"\n");
This method should get the method out of the model-class, because the produceerRandomArray()-methode which has been called by clicking on the button will save the produce array in the model-class. The method getMensArray will put it back here in the object named temp which is an array of Mens-objects (Human-objects). Then aftwards the array should be put in the textarea of the unsorted list as you could see left on the screen on the image.
Notice that in the beginning of this method there is a System.out.println-command to print to the screen as a test that the update-method has been called.
The problem is that this update method won't work. My Observable class should notice that something happened with the setChanged() and notifyObservers()-methods, and after this the update class in the classes which implement Observer should me executed. But nothing happenens. My controllers works, the method in the model (produceerRandomArray() -- produce random array) has been executed, but my update-method won't work.
Does anyone has an explanation for this? I have to get this done for my exam an the 5th of january, so everything that could help me would be nice.
Thanks a lot,
Kristo

This was driving me nuts, I put in a larger SSD today going from a 120GB to a 240GB and blew away my Windows Partition to make the process easier to expand OS X, etc. After installing windows again the only thing in device manager that wouldn't load was the Bluetooh USB Host Controller. Tried every package in Bootcamp for version 4.0.4033 and 5.0.5033 and no luck.
Finally came across this site:
http://ron.dotsch.org/2011/11/how-to-get-bluetooth-to-work-in-parallels-windows- 7-64-bit-and-os-x-10-7-lion/
1) Basically Right click the Device in Device manager, Go to Properties, Select Details tab, Choose Hardware ids from Property Drop down.   Copy the shortest Value, his was USB\VID_05AC&PID_8218
2) Find your bootcamp drivers and under bootcamp/drivers/apple/x64 copy AppleBluetoothInstaller64 to a folder on your desktop and unzip it. I use winrar to Extract to the same folder.
3) Find the files that got extracted/unzipped and open the file with notepad called AppleBT64.inf
4) Look for the following lines:
; for Windows 7 only
[Apple.NTamd64.6.1]
; No action
; OS will load in-box driver.
Get rid of the last two lines the following:
; No action
; OS will load in-box driver.
And add this line, paste your numbers in you got earlier for USB\VID_05ac&PID_8218:
Apple Built-in Bluetooth=AppleBt, USB\VID_05ac&PID_8218
So in the end it should look like the following:
; for Windows 7 only
[Apple.NTamd64.6.1]
Apple Built-in Bluetooth=AppleBt, USB\VID_05ac&PID_8218
5) Save the changes
6) Select Update the driver for the Bluetooth device in device manager and point it to the folder with the extracted/unzipped files and it should install the Bluetooth drivers then.
Updated:
Just found this link as well that does the same thing:
http://kb.parallels.com/en/113274

Real Model View Controller with JTextField

Hi!
I am new to Java (so please bear with me). I am building a swing application. I already have added a JTable with a corresponding table model that extends AbstractTableModel. Rather than store the data in the table model, I have modified setValueAt and getValueAt to write and read cell data to another location. So far, everything is fine. When doing setValueAt, I have a fireTableCellUpdated statement that I use to update the edited cell. So far, things are all still fine.
I would like to do the same thing with a JTextField. I found an example in Core Java Volume 1 for create a class that extends PlainDocument. It uses insertString to update the document in a way that ensures that only numbers are entered. I implemented this. Everything is still fine. I changed insertString to update my remote repository (a field in another class). Everything is still fine. Next, I tried to change (override) both getText methods to read from the repository. This works, but is not reflected on the screen.
I realize that I need the equivalent of a fireTableCellUpdated statement for the class that extends PlainDocument, but do not know how to do this.
I have looked a lot over the internet for the model view controller implementation. I know that it can be done using event and event listeners, but this seems to defeat the purpose of the model view controller - it seems like you ought to be able to directly modify the model object to access external data.
My code is below.
Thanks/Phil Troy
* PlainDocument class to make it possible to:
* - Make sure input in unsigned integer
* - Automatically save data to appropriate locate
* This will hopefully eventually work by overriding the insertString and getText methods
* and creating methods that can be overridden to get and save the numerical value
class UnsignedIntegerDocument extends PlainDocument
     TutorSchedulerPlusSettings settings;
     JTextField textField;
     public UnsignedIntegerDocument(TutorSchedulerPlusSettings settings)
     {     super();
          this.settings = settings;
     public void setTextField(JTextField textField)
     {     this.textField = textField;
     // Overridden method
     public void insertString(int offs, String str, AttributeSet a) throws BadLocationException
     {     if (str == null) return;
          String oldString = getText(0, getLength());
          String newString = oldString.substring(0, offs) + str +oldString.substring(offs);
          try
          {     setValue(Integer.parseInt(newString));
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          catch(NumberFormatException e)
     public String getText()
     {     return String.valueOf(getValue());
     public String getText(int offset, int length) throws BadLocationException
     {     String s = String.valueOf(getValue());
          if (length > 0)
               s = s.substring(offset, length);
          return s;
     public void getText(int offset, int length, Segment txt) throws BadLocationException
     {     //super.getText(offset, length, txt);
          char[] c = new char[10];
          String s = String.valueOf(getValue());
          s.getChars(offset, length, c, 0);
          txt = new Segment(c, 0, length);
     public String getValue()
     {     int i = settings.maxStudents;
          String s = String.valueOf(i);
          return s;
     void setValue(int i)
     {     settings.maxStudents = i;
}

Hi!
Thanks for your response. Unfortunately, based on your response, I guess that I must not have clearly communicated what I am trying to do.
I am using both JTables and JTextFields, and would like to use them both in the same way.
When using JTable, I extend an AbstractTableModel so that it refers to another data source (in a separate class), rather than one inside of the AbstractTableModel. Thus the getValueAt method, getColumnCount method, setValueAt method, . .. all call methods in another class. The details of that other class are irrelevant, but they could be accessing data from a database (via JDBC) or from other machines via some other communication mechanism.
I would like to do exactly the same thing with a JTextField. I wish for the data to come from a class other than an object of type PlainDocument, or of any class that implements the Document interface. Instead, I would like to use a class that implements the Document interface to call my external class using methods similar to those found in AbstractTableModel.
You may ask why I would like to to this. I have specific reasons here, but more generally this would be helpful when saving or retrieving parameters set and displayed in a JTextField to a database, or when sharing JTextField to multiple users located on different machines.
As to whether this is real MVC or not, I think it is but it really doesn't matter.
I know that I can accomplish what I want for the JTextField using listeners. However, I would like my code for the JTables to be similarly structured to that of the JTextField.
Thanks/Phil Troy

Model View Controller design question

Hi,
I am creating a brand new web application, and would like to use the Model View Controller design (using Beans, JSP, and Servlets).
I am looking design suggestions for handling page forwarding. I don't want to post to a jsp, and I don't want to hard code the name of the next jsp on the forward or in the servlet. I was thinking of having a properties or xml file, which lays out the routing read by the servlet and then dispatched.
Does anyone have any other design suggestions on the best way to handle routing someone through a web application?

What you can do is create a servlet that initializes the mappings on startup...create a hashtable of mappings from a file. You'll have to parse the file, so you can either use XML and use a SAX parser, or your own format (name=path? ie. order=/order.jsp), which ever one is simpler for you to use.
To load the servlet on startup, you specify the load-on-startup parameter in the web descriptor, web.xml:
<servlet>
     <servlet-name>MappingsLoader</servlet-name>
     <servlet-class>packagename.MappingsLoader</servlet-class>
     <load-on-startup>1</load-on-startup>
</servlet>
where load-on-startup number is the order in which it loads the servlet, 1 being first.
Then once you've created the hashtable, store it in servlet context.
When you want to forward something, just use a requestdispatcher object and the hashresult to forward the request to another web component (in this case, a jsp).

Need some Document\Approach\Guidance on Webcenter Site and ATG Integration

we have a requirement where pages/templates/content will be created in Webcenter Sites and will be consumed in ATG. I am looking for some Document\Approach\Guidance for Webcenter Site and ATG Integration

I am looking for some Document\Approach\Guidance for Webcenter Site and ATG IntegrationBelow may help you:
http://www.extended-content.com/wp-content/uploads/2012/07/WhitePaper-PublishingContentToATGFromOracleWebCenter-July2012.pdf
http://www.extended-content.com/mediastore-now-integrates-with-webcenter-sites/
http://technology.amis.nl/2011/08/13/fatwire-integrated-into-webcenter-as-webcenter-sites-for-web-experience-management/
Hope this helps.
-RMishra

Model-View-Controller implementation help

Hello, all. I'm updating an old, clunky, slow-as-molasses application to a slightly more responsive and expandable app with the help of the MVC pattern. However, I'm having a little trouble figuring out the best way to implement MVC in a Java app. Specifically, I'm not sure of the best way to get the model and two views talking to each other.
My model comes in the form of a couple manager classes that provide access to all the business data for the application. This is a relatively simple client-server app where the server can request that certain data be added or deleted, and the model responds accordingly. Similarly, scheduled tasks that run every 2 minutes can cause certain data to expire or become scheduled for display.
The model provides addXXXChangeListener methods. When a model change occurs that listeners need to know about, the model calls a notifyListeners method, and all registered listeners are notified of the change. View classes that are interested in hearing about model changes register themselves as listeners with the model and implement methods in the XXXChangeListener interface. In this way, the interaction between the model and view is almost exactly like existing interactions between event sources and listeners in Swing/AWT.
Right now, there isn't a lot of decoupling between the model and view, since the View obviously needs a reference to the model to add itself as a listener. The controller for the app sets all that up. Is this a viable way of implementing MVC in a Java app? Any suggestions or advice would be greatly appreciated.

Right now, there isn't a lot of decoupling between
the model and view, since the View obviously needs a
reference to the model to add itself as a listener.
The controller for the app sets all that up. Is
s this a viable way of implementing MVC in a Java
app? Any suggestions or advice would be greatly
appreciated.In classic MVC, the code that registers the listeners, captures the events and updates the model should be in the controller. The advantage being that you could theoretically change the view to use a different model. In reality, the view is generally (but not always) pretty specific to the model (while pieces of the model may not be) so there is little gained by doing this. The other advantage is that this can be a little cleaner and allow the controller to be 'smarter'.
If you are simply worried about coupling the vew to a specfic implementation of the model, create interfaces for the Model classes and let the Controller supply the View with references to the implmentations.

WebCenter Sites and UCM integration

Hi,
Can any one help me to integrate WebCenter Sites with UCM.

There are a number of approaches to doing this, and it totally depends on the version of UCM you're using (and the version of Sites too for that matter). Have a look at this presentation that Bex Huff and I gave at Collaborate last year.
Seamless Integrations between WebCenter Content, Site Studio, and W...
Regards,
Tony

Integration between Webcenter Sites and Oracle Real time Decision(RTD)

Hi,
I want to integrate RTD with Webcenter Sites for automated targetting purpose. Can you please provide any implementation view on this?
Thanks,
Krishnendu Chatterjee

Hi,
Hi,
I am also looking for the same..
Did you get any link or documents?
Thanks,
Dev

How to add the model view controller in webcenter portal framework application

i create a webcenter portal framework application.how to create a model class in my application..please help me.

What you mean by this. You mean having model layer in webcenter portal framework application? Whats the exact requirement.? You want to create ADF BC in portal app.
If you want to use adf taskflow application , i will recommend you to make separate adf application and use as shared lib in portal.

What's the best format for a movie to be in a site and be viewed by a PC?

I created a temporary web site using GoLive. I imported a short movie in 2 different versions (1 medium for DSL/Cable and 1 small for Dial-up). When I tested the site either in Explorer or Safari on different Mac computers at home, they both loaded and played OK. However, none of the videos show the bottom bar where the start/stop/volume control appears. Also noticed in a PC that the video had a broken link.
I created a link for QT for Windows so that any PC would be able to download for Free (I don't know if that's the answer).
Is there a universal format that could be saved or exported in QT for PC viewers?
And, why my movies don't show the control bar at the bottom?
The movies were exported as a QT ".mov" Streaming Medium and Low. You can visit: http://www.warreninstitute.com to check them out.
I'd really appreciate if anybody would suggets a better way of handling these short movies.
Thank you!
-sal
G3, G4, G5, iMac G4 Mac OS X (10.4.4)

Avoid H.264 video codec (default in many presets) so older versions of QuickTime can view your files. Use MPEG-4 or H.263 or Sorenson 3 instead.
The reason your controller isn't showing is because you've (probably) didn't allow for it in the movie dimensions. A 320X240 .mov file would become 320X256 (16 pixels for the controller).
Make sure you're using the proper "tags" (object and embed) in your page code.
More info here:
http://docs.info.apple.com/article.html?artnum=61011
No need for "streaming" (hint tracks) in your movies. They are only used by special software if your files are served from streaming servers. Your files download and the hint tracks only add to the file size and are not needed.

Model View Controller Deployment

Hi,
I have tried to deploy the ViewController layer in an OC4J instance, and the model and another instance of OC4J.
When I tried to execute the page in the ViewController layer I receive the following message. It seems like I need something to configure in order that my databindings could access to the model layer. I have already changed the Databindings.cpx in which I point the remote Configuration of the AppModule.
Does somebody know what is wrong or how I can solve the problem?
500 Internal Server Error
JBO-30003: The application pool (ec.com.carrasco.accionespersonal.model.AppModule9iAS) failed to checkout an application module due to the following exception:
oracle.jbo.JboException: JBO-29000: Unexpected exception caught: oracle.jbo.JboException, msg=JBO-29000: Unexpected exception caught: oracle.jbo.JboException, msg=JBO-25222: Unable to create application module.
at oracle.jbo.common.ampool.ApplicationPoolImpl.doCheckout(ApplicationPoolImpl.java:1743)
## Detail 0 ##
oracle.jbo.JboException: JBO-29000: Unexpected exception caught: oracle.jbo.JboException, msg=JBO-25222: Unable to create application module.
## Detail 0 ##
oracle.jbo.JboException: JBO-25222: Unable to create application module.
at oracle.jbo.common.ampool.DefaultConnectionStrategy.createApplicationModule(DefaultConnectionStrategy.java:156)
## Detail 0 ##
javax.naming.NamingException: Error instantiating web-app JNDI-context: No location specified and no suitable instance of the type 'ec.com.carrasco.accionespersonal.model.common.ejb.beanmanaged.RemoteAppModule' found for the ejb-ref ejb/AppModuleBean

thank you for your reply,
i did as you said but the problem persists,
actually my Model Project contains a Session Bean , and the web browser error says that it can't find this session bean.
this is the first time i deploy an application using jdeveloper 10g, Do you think that i have to create a Deplyment Descriptor or something like that?
Message was edited by:
rsader

How to install webcenter sites 11.1.1.6 or 11.1.1.8 in cluster configuration and delivery mode?

I am trying to install webcenter sites 11.1.1.6 using cluster configuration and in delivery mode but its not getting installed properly.
Can anyone please share on the steps to follow while installing webcenter sites in delivery environment?

The recommendation from the Oracle WebCenter & ADF Architecture Team is to keep the parts decoupled, installing WebCenter Sites on a separate machine. Otherwise it would be leading towards a 'Type 3' integration. Specifically looking at the proof-of-concept application 'Spark', which requires WebCenter Sites and WebCenter Portal installed on the same machine:
+"Due to this co-deployment requirement, most clients have avoided installing or using Spark. And not without reason: installing two big, complex applications on the same environment is problematic with regards to scalability and tuning."+
http://blogs.oracle.com/ATEAM_WEBCENTER/entry/integrating_webcenter_sites_with_webcenter3
The introductory article on integrating WebCenter Sites and WebCenter Portal:
http://blogs.oracle.com/ATEAM_WEBCENTER/entry/integrating_webcenter_sites_with_webcenter
Thanks

Integrating WebCenter Sites 11.1.1.8 and Endeca

Hi all,
What’s New in Oracle WebCenter Sites 11.1.1.8 document states there is an integration of WC Sites with Endeca.
"Oracle Endeca Integration: Incorporate faceted search and guided navigation into WebCenter Sites driven websites to deliver more precise, relevant and complete search results. Enable site visitors to find information quickly with guided navigation. This Proof-of-Concept (PoC) reference implementation demonstrates how to integrate Endeca cartridges within WebCenter Sites. It includes sample code and best practice guidance. It will be productized at a later date."
Could you please guide me to where to find such PoC and more info about this integration?
We need to accompplish integration of WCSites and Endeca GuidedSearch.
Any help will be very much appreciated.
Regards,
Juan

The recommendation from the Oracle WebCenter & ADF Architecture Team is to keep the parts decoupled, installing WebCenter Sites on a separate machine. Otherwise it would be leading towards a 'Type 3' integration. Specifically looking at the proof-of-concept application 'Spark', which requires WebCenter Sites and WebCenter Portal installed on the same machine:
+"Due to this co-deployment requirement, most clients have avoided installing or using Spark. And not without reason: installing two big, complex applications on the same environment is problematic with regards to scalability and tuning."+
http://blogs.oracle.com/ATEAM_WEBCENTER/entry/integrating_webcenter_sites_with_webcenter3
The introductory article on integrating WebCenter Sites and WebCenter Portal:
http://blogs.oracle.com/ATEAM_WEBCENTER/entry/integrating_webcenter_sites_with_webcenter
Thanks

WebCenter Portal and WebCenter Sites Integration

We have a client requirement where we need to provide Web Content Management and Portal Solution in Oracle WebCenter product stack.
Contents, Templates and other Content Assets will be created and managed in WebCenter Sites, WebCenter Portal will be used for content delivery (Display content to end user). There is another requirement of content editing from WebCenter Portal; where a set of users will have the right to editing content present in WebCenter Sites.
Is there any available solution for integrating WebCenter Sites and WebCenter Portal to fulfill above requirements?

The best available info is in this thread: Integrating webcenter sites content in to Webcenter portal
Take a look also at this one: Re: WebcenterSites Vs WebcenterPortal

Should I use a MVC framework for an large RIA application

The book of "Adobe Flex 3 Training from the Source" does not
talk about any MVC frameworks in its
eCommerce example. I think Flex's events, functions, and mx
components are MVC already. Do they have to be in separate file to
call them MVC? I do not find that core Flex is harder to read and
understand than using a MVC framework. I think using the MVC
framework would hurt the performance because too many additional
events are dispatched. Any comments?

MVC is one design pattern that is pretty darn useful for a
lot of applications, IMHO. There are frameworks that more or less
force you to think in MVC pattern terms, like Cairngorm and
PureMVC. But you certainly don't need to use a framework to create
an overall design pattern of model, view, controller. However, it
sure can make it easier if you're doing a large project. The book
you're talking about is a good example. They don't use a framework
but they have tried to use a form of MVC in the way that they
implement all the components to ensure things are loosely coupled.
As far as hurting performance, I'm no expert but there are so
many thousands of events occurring all the time in Flex that you
might actually enhance performance if you take more control by
using custom events of your own creation within a well designed
framework.
I'm a fan of the Mate because I get it and it doesn't impose
a strict structure like Cairngorm. I don't have a whole lot of
experience with OOP (though I'm sure getting it thanks to this
forum). Many others have their own opinions and will surely
recommend other frameworks. However, the bottom line is that if
you're doing a big project, I would think it would be a huge help
to at least have a conceptual framework approach in your mind, if
not part of the code.
Here's a video intro to Mate
http://tinyurl.com/mateintro

WebCenter Sites and Model–view–controller (MVC) framework

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