Question on Active Data in Adf Faces

hi,all
I am learning Oracle Adf, and interested in the component called Active Output Text,but I can't find the way to use it,could you please show me or find me some samples?
I have used Oracle BAM before,Can Active Output Text or some other components act as the components in BAM, I mean they can refresh themselves when changes occur in the back end?
Thank you!
Regards
xiaoguang

Hi,
yes, they work the same as in BAM. There are no examples out yet that will teach this technology. Also note that since this question is JDeveloper 11 related it should better go to the JDeveloper 11 forum:
JDeveloper and OC4J 11g Technology Preview
Frank

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    Yerzhan.

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         at oracle.dms.wls.DMSServletFilter.doFilter(DMSServletFilter.java:330)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.doIt(WebAppServletContext.java:3684)
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         at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
         at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
         at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2268)
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         at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1446)
         at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
         at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)What I'm doing wrong? And how can I dismiss that popup, as it duplicates errorView and does not get messages from a custom message bundle?
    Thanks in advance for any comments.
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  • EJB 3.0 / Data control binding / ADF Faces

    We have a great and very useful tool to generate rich client web application. Generate web component from a data structure is easy but manage the full life cycle is a little bit more complex. This complexity is dramatically increased when tool/platform are offering many models to solve the problem.
    In JDev we have three major choices:
    1) adf business components
    2) top link pojo
    3) ejb3.0
    From the client side and in my point of view (at my current understanding) the first and second choice are the easiest way to manage the persistence because they are what i say "bidirectional", that mean i will use the same data structure to persist and synchronize the database. I may only calll a method from the object to put my changes from the midle-tier into the database.
    EJB 3.0 seem to be more cormplex due essentially to the presence of the session bean that acts like conversational api. I like this architecture because it is the most flexible but from my client i have to manage these api's instead of one data structure. This mean for me to catch/detect every updates, new insert or deletes in my business object and to write the corresponding code to apply to correct entity bean methods from my session bean.
    Why not manage this logic in the data control framework by declaring which methods are to use as finder to get the data and which methods are to used to manage the persistence (persist, merge, remove) at object level.

    Exactly what i mean
    Actually Data Control architecture seem to be business object oriented with native method called from the same object to retrieve (the most part done)/synchronize the data with the database.
    This is fine than your architectue don't provide a service layer like session facade.
    With session facade you will access different business method to retrieve data and synchronize you data with the database not different method from the same object like application module do in adf bc.
    I see two solution, the best is that you extend the data control framework to offer standard crud operation and a tools to map these with one or many methods in the same (has to be the same?this is a question of architecture, i think it has to be the same but the framework may have to permit to use an another one for flexibility) session bean. This may be the same from adf bc or top link but the method may be selected automatically by the tool (wizard).
    The second solution is to build specialized sesssion bean with mandatory standardized methods and map this directly in the framework. The advantage i see is that the updates may be collected only once by the session bean by passing a specialized object manipulated by a specialized method.
    In fact the best solution is something that combines mapping in the data control and a specialized set of methods in the session bean to execute a transaction in a whole at the server level.
    What is to be decided if the framework (data control part) has to maintain a status for attribute (or set of attribute that correspond to a data control node) that are new inserted, updated or deleted and to synchronize only the changes.
    I'm very surprising that something like that it is not already in the framework ?
    How do I have to take care of changes made in a data control node object when i have used it to generate an adf faces by example in master / detail pages with an edit form like in otn examples. I see that the detail list in the detail table is updated so the data control is updated correctly by the edit form when i submit the changes but how to finally get this changes and synchronize with the database ?
    ps i reply previously by mistake by email sorry ... not that the email is not exactly the same as the post here
    Michel

  • Information about adf data model's state management in JSF/ADF faces?

    Dear All,
    i am developing an application with JSF/ADF faces + using
    adf data model (EJB, not adf bc)...
    i want to know more about state management of adf data model..
    1. under what condition, will the data in the binding context
    (methodIterator, variableIterator, accessorIterator..etc) be maintained accross
    http requests? say browse pageA.jspx, pageB.jspx, pageC.jspx..then do data
    in the corresponding pages saved somewhere else until session timeout?
    2. how do the binding context data be saved ?? http session?
    i can't find detail information in the adf bc dev guide and the adf dev guide..
    could anyone give me more information about this?? any better document??
    i have asked these question several times...but seem nobody can give me a
    full picture about the adf data model's state management....it is quite important
    in order to develop good application using adf data model.
    my company have brought oracle's support service...can i get these information
    through metalink (open a SR) ?? or actually no such information available ??
    btw, after playing with adf data model for a few weeks, i do find it is very
    hard to learn it... no complete document, information is just by providing example...
    adf data model do make:
    1. simple logic, supported by adf, more simple in coding
    2. simple logic, not supported by adf, more complex in coding
    3. complex logic, much more complex in coding...brain damage..
    lsp

    Hi,
    actually, these pages don't explain the state management about the adf data model's iterators?
    i want to know the state management of the iterators...for some iterators..it's
    state is maintained across requests...
    please see my previous post: ADF JSF data binding: why state maintained between requests? that Frank Nimphius said:
    "in this case its the iterator that survives the page navigation"...
    in the adf dev guide..section 5.5.5..it says: "Upon each request, the iterator bindings are refreshed to rebind them to the
    underlying RowSetIterator objects. By default, the rowset iterator state and the
    data caches are maintained between requests."
    in dev guide, it seems state is maintained for request for the same page, but not
    accross different pages. but in fact, the rowset iterator do survive...
    any detail document that write down the actual behavior of the iterators?
    thank you.
    lsp

  • ADF BC and the Active Data Service

    hi
    The OFM Fusion Developer's Guide for Oracle ADF 11g Release 1 (B31974-05) has a section "42 Using the Active Data Service"
    at http://download.oracle.com/docs/cd/E15523_01/web.1111/b31974/adv_ads.htm
    that says "... If you want your components to update based on events passed into ADF Business Components, then you need to use the Active Data Proxy. ..."
    but it does not seem to explain how to use ADF BC and the Active Data Service.
    I have been able to create this example application ...
    http://www.consideringred.com/files/oracle/2010/ActiveDataServiceADFBCApp-v0.01.zip
    ... that does not have a af:poll component (but has moved polling into a managed bean).
      <managed-bean>
        <managed-bean-name>sumSalBean</managed-bean-name>
        <managed-bean-class>activedataserviceadfbcapp.view.SumSalBean</managed-bean-class>
        <managed-bean-scope>session</managed-bean-scope>
        <managed-property>
          <property-name>empSumSalVO</property-name>
          <value>#{data.activedataserviceadfbcapp_view_sumSalPagePageDef.SumSal.viewObject}</value>
        </managed-property>
      </managed-bean>This is some code in the SumSalBean class:
    package activedataserviceadfbcapp.view;
    // also based on code found in "ADF’s Active Data Service and scalar data (like activeOutputText)" by Matthias Wessendorf
    // at http://matthiaswessendorf.wordpress.com/2010/01/07/adf%E2%80%99s-active-data-service-and-scalar-data-like-activeoutputtext/
    public class SumSalBean
         extends BaseActiveDataModel
         protected static final String SUM_SAL_NAME = "sumSal";
         protected final AtomicInteger fCurrentChangeCount = new AtomicInteger(0);
         protected long fActiveDataUpdateEventTime;
         protected EmpSumSalVO fEmpSumSalVO = null;
         @PostConstruct
         public void setupActiveData()
              ActiveModelContext vActiveModelContext =
                   ActiveModelContext.getActiveModelContext();
              Object[] vKeyPath = new String[0];
              vActiveModelContext.addActiveModelInfo(this, vKeyPath, SUM_SAL_NAME);
              ScheduledExecutorService vSEService = Executors.newScheduledThreadPool(1);
              vSEService.scheduleAtFixedRate(new Runnable()
                        public void run()
                             if (hasDataChanged())
                                  triggerActiveDataUpdateEvent();
                   3, // let's wait some seconds
                   2, // period between the updates
                   TimeUnit.SECONDS);
         public void triggerActiveDataUpdateEvent()
              setActiveDataUpdateEventTime(System.currentTimeMillis());
              incrementCurrentChangeCount();
              ActiveDataUpdateEvent vEvent =
                   ActiveDataEventUtil.buildActiveDataUpdateEvent(
                        ActiveDataEntry.ChangeType.UPDATE,
                        getCurrentChangeCount(), new String[0], null,
                        new String[] { SUM_SAL_NAME },
                        new Object[] { getSumSal() });
              fireActiveDataUpdate(vEvent);
         public String getSumSal()
              EmpSumSalVO vEmpSumSalVO = getEmpSumSalVO();
              return "" + vEmpSumSalVO.getFirstSumSal();
         protected void startActiveData(Collection<Object> rowKeys,
              int startChangeCount)
         protected void stopActiveData(Collection<Object> rowKeys)
         public int getCurrentChangeCount()
              return fCurrentChangeCount.get();
         protected boolean hasDataChanged()
              EmpSumSalVO vEmpSumSalVO = getEmpSumSalVO();
              return vEmpSumSalVO.hasDataChanged(getActiveDataUpdateEventTime());
         public void setEmpSumSalVO(EmpSumSalVO pEmpSumSalVO)
              fEmpSumSalVO = pEmpSumSalVO;
    }How all this behaves a runtime can be seen in this screencast
    at http://www.screentoaster.com/watch/stUEpQSkxIR19aSV9YW1NRVF9W/activedataserviceadfbcapp_v0_01_zip_demo
    I would welcome comments on how the example application in ActiveDataServiceADFBCApp-v0.01.zip can be improved, or references to information on how this should be done properly.
    question
    (q1) Where can I find some example code that does use ADF BC and the Active Data Service?
    many thanks
    Jan Vervecken

    Jan,
    ADF BC does not natively support ADF yet. Its planned for a next release. The only Data Control that out of the box support ADS is BAM. To use ADF BC with e.g. databae change notifications you
    - create a shared AM
    - Configure the VO to respond to database changes (check box)
    - Configure the database to broadcast changes
    - Use an af:poll component for the refresh because the update would be on the model layer only
    So what is in the documentation is a doc bug. In the current releae you can use ADS best with a POJO model (that you use directly for dashboard use cases). You can though use a POJO data control, but this at the current stage would just act as a pass through for the data access.
    See example 156 on http://blogs.oracle.com/smuenchadf/examples/ for how to do it with ADF BC
    Frank
    Ps.: Of course, the plan is to make everything working out of the box with no developer action required.
    Edited by: Frank Nimphius on Feb 12, 2010 6:56 AM
    Re-read your post. Maybe I need to revise my comment. Are you accessing AM directly or via the ADF layer. If the latter - I did not yet look at your sample - then this may work if you don't release the AM module you access directly (may not scale well)

  • Adf faces, data control and more than one session context ?

    I already put the question in the forum but nobody answered may be my question may not be so clear so i would put it again with other words.
    Each xml page definition are instantiated in a binding container for a http session, you are able to get the data with bindings or data that represent the current binding container (bindings) or a given container corresponding to an another page that the current (data).
    It is perfect when you don't allow multiple instances of the same page in the same application session. Browser are now offering tab management that allow user to navigate through multiple applications just by changing the current tab. It's very useful. I imagine that user's will be using it also in my application and will use it to compare or more simply just watch about two different entities of the same type (the same xml page definition, the same object instantiated in the binding container).
    Because the binding container is associated with the http session all tabs will share the same one, isn't ? So i understand the problem and that it is forbidden to have many identical page for a single instance in the binding container because of synchronization issues.
    Is all that i said true ?
    Is it a way to solve this type of problem ?
    Will this problem be addressed by adf faces and data controls ?
    Hope somebody will answer !
    Message was edited by:
    micwic

    I already put the question in the forum but nobody answered may be my question may not be so clear so i would put it again with other words.
    Each xml page definition are instantiated in a binding container for a http session, you are able to get the data with bindings or data that represent the current binding container (bindings) or a given container corresponding to an another page that the current (data).
    It is perfect when you don't allow multiple instances of the same page in the same application session. Browser are now offering tab management that allow user to navigate through multiple applications just by changing the current tab. It's very useful. I imagine that user's will be using it also in my application and will use it to compare or more simply just watch about two different entities of the same type (the same xml page definition, the same object instantiated in the binding container).
    Because the binding container is associated with the http session all tabs will share the same one, isn't ? So i understand the problem and that it is forbidden to have many identical page for a single instance in the binding container because of synchronization issues.
    Is all that i said true ?
    Is it a way to solve this type of problem ?
    Will this problem be addressed by adf faces and data controls ?
    Hope somebody will answer !
    Message was edited by:
    micwic

  • Customizing ADF Faces Look & Feel. Some questions & suggestions

    Hi everybody,
    We are developing an application with ADF Faces using JHeadStart. For the moment, I am studying the way we must modify the JHS templates to adapt each element to our needs.
    As it's told in the JHeadStart Developer's Guide, there are two ways to customize Look & Feel:
    1) Modifying the templates
    2) ADF Skinning
    I'm using both methods, but I feel that thay are not good enough to adapt the L&F to our customer requirements.
    My main problem now is in the ADF Table customization. I want to use ADF Table because it offers us a lot of features that are not in the jsf table (the selection column, the table overflow...), and is very usefull combined with the generated JHS code. But at the same time, it doesn't offer a lot of functionality in the look & feel customization. Using JSF Table, I can set the CSS style for headers, rows, columns, the table, I can set the border, cellspacing and cellpadding. But I cannot do
    any of these thing (or at least, I don't see how) with the ADF Table.
    Our customer (a government) have a strict definition of the look & feel of his web applications. They want we use their CSS styles definition file, so they can modify at once the Look & Feel of all their applications. Modifying the L&F through skinning generate other styles, not use the style classes in our CSS (o so I think).
    So, the questions:
    1) There is any way to set the suitable styles for the ADF Table components (headers, rows)?
    1bis) Why, If I have defined a new skin, with only just a few selectors, some styles from oracle are applied? Maybe because the render kit in the 'adf-skins.xml' is "oracle.adf.desktop"? If it is true, how can I make that they are not used, I must implement a render kit or can I use another existent?
    2) Can I decide how looks the select column (for example a button instead of a radio button)? Can I decide where does it goes (right or left)?
    3) There is any way to hidden the text Show/Hide of the showDetail in the table (the tableOverflow), as I can change the icons through skinning? If it is not possible, How can I overwrite the text. I need it in Catalan, but it is shown in English for this locale. Where is the message bundle I should overwrite?
    4) There is any way to force a tree to start fully expanded?
    5) There is anywhere documentation about the javascript functions used in ADF and their meaning? I think for example in the previous question. If I knew which javascript function I should call for expand the tree and its parameters, I could put the call in the onload event of the body.
    6) I use a selectInputDate. I have skinned the launch-icon, and I would like to do a similar thing in the chooseDate that is opened in a new window. But It seems not to be affected for my skinning directives (if I put a chooseDate in the same page, its L&F follow the skinning rules I've defined). I don't know if this dialog is an ADF feature or a JHS generated feature.
    7) There is any way to keep unmodified the id I've choosed for a component? (I mean, an inputText with id="hello" in a form with id="form" will have in the HTML an id = "form:hello", but I would like it to be simply 'hello')
    8) How can I control the position and the size of a dialog (the chooseDate dialog or a dialog I've created)? In the cases I've been testing, it seems the dialog is forced to resize depending on the content. I would like to know if I can establish a fixed size.
    9) There is any way to open a non-modal dialog? (which I could keep open at the same time that another instance of the same dialog)
    For the moment, I think I have no more question. But give me time.... :-D
    The suggestion I've to do is basically more flexible components for a better customization (for example, the styles settings I've talked about previously). ADF components are nice and powerful, but I think they should generate pages that follow the tendencies in the web development: tableless pages (I cannot understand the utility of the objectSpacer existing the margins), use of CSS for layout...
    Any answer, comment or suggestion will be welcome.
    Carles.
    Message was edited by:
    cbios

    I have been able to make the UIX 2.2 and ADF Faces LAF look near identical by updating the oracle-desktop.xss file within UIX 2.2 as follows
    <!-- Change the accent color ramp to tan -->
    <style name="DarkAccentBackground">
    <!--<property name="background-color">#cccc99</property>-->
    <property name="background-color">#d2d8b0</property>
    </style>
    There are still some differences:
    1) A black line appears on the ADF Faces on the 'menu1' facet selected tab below the text. DON'T KNOW HOW TO REMOVE THIS FROM ADF Faces or add it to UIX 2.2!!!
    2) In UIX 2.2 a bulleted list uses the HTML <li> tag. In ADF Faces it doesn't use the HTML <li> tag rather it constructs the bulleted list using lower level HTML tags with the 'bullet' becoming an image, in my browser this means the disc is smaller in Faces. The motivation for this change I think is explained via this post. Since I have no control over how this specific HTML tag is rendered it forces me to replace the /adf/images/bltdscn.gif file in adf-faces-impl.jar with a larger disc!
    http://www.thescripts.com/forum/thread96839.html
    May update this again if there are other things I notice.

  • Problem with ADF Faces; Bean (session scope) keeps Data after Session ends

    Hi,
    I have a project, which was transferred from an myFaces-project to an ADF Faces-project. Since i´am working with the ADF Faces the data in my beans (which are all in session-scope) won´t vanish after a logout.
    1) I have a method in one bean, which clears the user data (name and passwd), for example, but after a logout (redirecting to the login-page) I just have to push the loginbutton to get in the app. as the last user logged in. The bean is cleared, but where does the data come from. When the app was working with myFaces, this did not happen, the inputText and the inputHidden were empty.
    2) I have a af:table, which displays max ten lines. If the last user watched the elements 21 to 30 in that table, the next user who watches the table gets the same elements shown and not the elements 1 to 10. That shouldn´t happen in a different session.
    3) I have some listboxes in one page, where a user can make some decisions. If i logout and in again, i can see the decisions last made in these listboxes.
    All that happens with beans in session scope!
    Thanks for the replies (i hope) and excuse my bad english,
    Santiago

    Hi
    If this is the case , you can explicitly make all ur session data objects null.

  • ADF Faces RichTable doesn't validate but still display changed data

    Hello,
    I think I miss something in the ADF Faces lifecycle management. Can you help me?
    In a adf faces/jsf page,
    1- I have a RichTable which DataModel is based on a List<Department> stored in a managed bean (session).
    2- I have a button "Cancel" with immediate=true partialSubmit=false (I don't use PPR) and an ActionMethod that does a few changes (not in the model) and return "success".
    When I modify a value in the table (that has some af:inputText) and click on the Cancel button, the underlying List<Department> instance isn't changed (Which I expect because of the immediate=true property!). But the table still display the changes I've typed in the page. How can I reverse the data displayed in the table to before my change in the UI (in a simple manner)? What do I miss?
    Best Regards
    Gregory

    Hi,
    immediate = true makes sure that the component is evaluated before all the other. In addition the value change event fires before the model update to give you the opportunity to prevent the update. I don't know what your managed bean code is doing, but the fact that the table has the update indicates the RC table component to work properly. Your table model isn't updated, which I don't think will be automatic. So I assume you will have to access the current selected row, get the row object and pass it to the list for an update
    Frank

  • ADF Faces: Table detailstamp facet question

    HI!
    Is it possible to make detailstamp disclosured by default? How?
    Thanks in advance.
    Regards,
    Gustavo

    Hi there!
    Maybe it is not the right place to ask ADF Faces related questions...
    Can someone give me a pointer to where ask questions about ADF Faces?
    Thanks
    Thomas

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