[ADF, JDev12.1.3] A test of a VO view in a managed bean and iterate on the rowset. What's not here...?

Similar Questions

• [ADF, JDev12.1.3] How to pass an Integer value sets to a workflow, and then it reads a bean?

  Hallo,

  for a test, I need to set the value of an entry of a stubborn workflow used as dialog...

  

  Then in the bean that is associated with a known fragment of the btf, I need to read the value, so I used this code...

  Integer protocol = (Integer) AdfFacesContext.getCurrentInstance().getPageFlowScope().get("protocol");
  

  This exception triggers...

  javax.el.ELException: java.lang.ClassCastException: java.lang.Long cannot be cast java.lang.Integer

  What's wrong?

  Thank you

  Federico

  If I remember correctly, in JSF that EL has Long type so this probably also applies to ADF.

  For example, you can cast a Long or you can use the type field (from some managed bean) an integer as an input parameter.

  Dario

• [ADF, JDev12.1.3] How to create a new record in a table filling one filed with the IP address of the client?

  Hallo,

  I create a stubborn workflow that begins with a create operation on the table where a new record should be added.

  The recording fields must be filled in by the user, but before committing, I have to fill a field of the reocord with the address IP of the PC of the user.

  Could you kindly advice me which are the possible recommended approaches to achieve this?

  Thank you

  Federico

  Hello

  See this post: Blog of Zeeshan Baig: how to get the IP address of the customer in ADF merge request

  You can use a createWithParams operation and to fill in this field.

  Reference: Andrejus Baranovskis Blog: CreateWithParams operation for Oracle ADF 11g BC

  Kind regards

  Ruben.

• [ADF, JDev12.1.3] Opening SESSION: a session ID, HTTPSession, brought bean, UserData... where to store the information? (And other doubts...)

  Hallo,

  my simple application has this main stream job boundless...

  

  1)

  I see that when I call the login page of this URL http://127.0.0.1:7101 / MyApplication/faces/login, to which - in the address bar - it is auto-ajouté for example ' jsessionid = Wn2ymE_3cC2JXHYtG7_ocZDgMgonLyr376zejB-ui28UPlm5tiuB! 1535501325 ".

  So I guess that the session exists as soon as the user access the login page.

  • I would like to know if I have to worry about a possible previous session (especially another user session).
  • If the user on the home page click the back button in the browser the application creates a new session to destroy the possible previous session?
  • BdW, if my request to place the values in the HTTP session would be a good practice as part of the bean connection null all the attributes of the session?
  • And if my request to place the values in UserData would be a good practice as part of the bean connection null all the attributes of the container UserData?

  2)

  • Is it better to store the information in the HTTP session or UserData?
  • It is less safe than the other? Otherwise why is there the need to have 2 types of sessions?
  • Could he have no sense in storing an individual data in the HTTP session and UserData at the same time?
  • I have seen that the HTTP session is very easy to access, view and (if necessary) and the layers of the model. Is the same as for UserData, or it can be accessed only by the model layer?

  3)

  • In my case, I want to share my application the user in user data:
    • First and last name (only at the end of the display)
    • Name of the service (only at the end of the display)
    • Username and DepartmentId (these hairy should be passed to the query and the view of your criteria)
  • Where I put those values? Who, in the HTTP session? Who in UserData?

  4)

  • I'm in doubt if using a scope session bean or - since the data that I have to share is really little - use the 'basic' (e.g. ectx.getSessionMap () .put ("key", "ValueToStore")).
  • If I use an extended session bean and I store of simple values (integer, String,...) I don't have to worry about serialization (de)?
  • A scope session bean is accessible from the model layer as the HTTP session basis (what I can put by ectx.getSessionMap () .put ("Key", "ValueToStore"))?
  • And in my situation I could handle everything with a single between UserData anda HTTP session?

  These questions are intended to create a simple login system that stores data needed somewhere in the different parts of my application.

  So any advice is welcome!

  Thank you

  Federico

  1)

  I see that when I call the login page of this URL http://127.0.0.1:7101 / MyApplication/faces/login, to which - in the address bar - it is auto-ajouté for example ' jsessionid = Wn2ymE_3cC2JXHYtG7_ocZDgMgonLyr376zejB-ui28UPlm5tiuB! 1535501325 ".

  So I guess that the session exists as soon as the user access the login page.

  • I would like to know if I have to worry about a possible previous session (especially another user session).
  • If the user on the home page click the back button in the browser the application creates a new session to destroy the possible previous session?
  • BdW, if my request to place the values in the HTTP session would be a good practice as part of bean connection null all the attributes of the session?
  • And if my request to place the values in UserData would be a good practice as part of bean connection null all the attributes of the container UserData?

  -When you close your browser, this will destroy the session

  -None

  -It will be much easier to invalidate the entire session (HttpSession method for this object)

  -When you destroy the http session, it will destroy the Application modules, and it will destroy UserData

  2)

  • Is it better to store the information in the HTTP session or UserData?
  • It is less safe than the other? Otherwise why is there the need to have 2 types of sessions?
  • Could he have no sense in storing an individual data in the HTTP session and UserData at the same time?
  • I have seen that the HTTP session is very easy to access, view and (if necessary) and the layers of the model. Is the same as for UserData, or it can be accessed only by the model layer?

  -We already discussed in a previous thread so I won't comment

  -both are secure. HttpSession exist in java web applications and UserData is specific ADF.

  -Maybe (for example, it is not recommended to access the HttpSession of model project, so you can store some data in the UserData (to be referenced from your, etc.) and managed (so you can bind them directly to UI) Bean)

  -Are accessible only from template (but you can expose a custom to ViewController method that accesses UserData)

  3)

  • In my case, I want to share my application the user in user data:
  • • First and last name (only at the end of the display)
    • Name of the service (only at the end of the display)
    • Username and DepartmentId (these hairy should be passed to the query and the view of your criteria)
  • Where I put those values? Who, in the HTTP session? Who in UserData?

  My opinion:

  Name, first name, name of the Department-> session brought average managed (so you can link that directly to the user interface components)

  UserId, DepartmentId-> UserData (or you can store managed bean and pass as parameters to methods of model project)

  4)

  • I'm in doubt if using a scope session bean or - since the data that I have to share is really little - use the 'basic' (e.g. ectx.getSessionMap () .put ("key", "ValueToStore")).
  • If I use an extended session bean and I store of simple values (integer, String,...) I don't have to worry about serialization (de)?
  • A scope session bean is accessible from the model layer as the HTTP session basis (I can put by ectx.getSessionMap () .put ("key", "ValueToStore"))?
  • And in my situation I could handle everything with a single between UserData anda HTTP session?

  -with getSessionMap () .put (), you must pay attention to the data types when you change or retrieve values (for example, do you know if DepartmentId is Integer, BigDecimal, oracle.jbo.domain.Number,..) If this isn't "type-safe". In addition, it is easier to understand what your application keep in session if you managed bean that in order to find all the places you're calling the method getSessionMap () .put ().  And controlled beans are a 'natural' way to keep data in a JSF/ADF application.

  -Not (just brand bean session with the Serializable attribute)

  -You can do something similar to this, but this is not a recommended practice because it would break the MVC pattern

  -If you do not have too much, you can keep everything in HttpSession and expose methods to set the binding vars.

  Dario

• [ADF, JDev12.1.3] How to get the column headers, request of VO and VO bind vars used by an af:table?

  Hallo,

  I want to create a method that takes as a parameter the id of an af:table (used to display the search results) and returns:

  • the column headings of the af: table
  • Visible property (true/false) of the columns af:table
  • the actual query of the VO instance used to create the af: table
  • the values of real bind variables passed to the query of the instance of VO

  I would like to create a servlet which takes the parameters reruns the query and returns a report Excel/PDF file that contains exactly the same columns and same of the af records: table.

  I'm a little confused on who use the code to achieve this... you kindly help me?

  I did a similar qustion here Re: [ADF, JDev12.1.3] how to export an af:table to Excel in an ADF Essentials application? but then I guessed that it was preferable to create a new thread.

  Thank you

  Federico

  For this, you can use this type of code

  Context LocaleContext = _adfTableBinding.getLocaleContext ();

  for (attr AttributeDef: attributeDef) {}

  Label As String = attr.getUIHelper () .getLabel (context);

  _logger.info ("Attritbute name:" + attr.getName () + "column name:" + attr.getColumnName () + "Col4Query name:" + attr.getColumnNameForQuery () +)

  "Name:"+ label);

  }

  which produces this output

  Timo

• [ADF, JDev12.1.3] When the operationBinding.getErrors () .isEmpty () which are 1) common causes and 2) actions recommended to do?

  Hallo,

  When you call a method from the link layer errors my arrive and the code base to make sure it is...

  if (! operationBinding.getErrors().isEmpty()) {
    // Error handling
    return false;
    }
  

  In the error handling, we can save the error and perform other actions.

  List errors = operationBinding.getErrors();
  Throwable t = null;
  Iterator<Throwable> it = errors.iterator();
  while (it.hasNext()) {
    t = it.next();
    log(t.getMessage());
    // Specific action for the exception
    }
  

  Given that my error handling section don't ever serve during the tests... I ask you what kind of error may occur when you call a method in the link layer?

  What are the common mistakes that can happen?

  What actions are usually performed in case of error?

  Cancellation of the transaction?

  Output of the application?

  What have I to do not forget to check?

  Thank you

  Federico

  Federico, read http://www.oracle.com/technetwork/issue-archive/2013/13-mar/o23adf-1897193.html , who read the part called "Oracle ADF Error Handling Architecture". Frank described here kind of mistakes that each layer can lift and how to manage them. You can even start your own exceptions derived from local and get in the list.

  Delivery errors, it's something you have to decide on each case. Get an error while you commit could do a necessary restore, but only sometimes display a form one let the fix for the user of the problem. If you call a method in the rich throws module request a mistake because a service is not available, you can continue if you do not need data he or so while the application if the data are required.

  It must be decide for ach calls you make. In general you must connect at least a message with error to leave to find the best solution in a later version, and then just to save the message.

  Timo

• [ADF, JDev12.1.3] When you use create/restoreSavepoint... Restore operation is still useful? And other doubts...

  Hallo,

  Dario and Timo advised me (in this thread Re: [ADF, JDev12.1.3] Master w/playback af:form only af:tables detail: how to handle insert and edit through forms?) I make a request using the functions create/restoreSavpoint to this fragment in my application.

  

  The tables are read-only, and the user can insert and modify records by a form of popup.

  Each table has its own pop-up that I created using a btf executed as diaolog (*).

  Before I open the popup, I create the backup point.

  BindingContext bctx = BindingContext.getCurrent();  
  DCDataControl dcDataControl = bctx.getDefaultDataControl();  
  String sph = (String) dcDataControl.createSavepoint();  
  AdfFacesContext.getCurrentInstance().getPageFlowScope().put("AdfmSavePoint", sph); 
  

  When the popup is closed, I restore the backup point if the Cancel button was clicked...

  Object confirmOrCancel = returnEvent.getReturnValue();  
  if (((String) confirmOrCancel).equals("cancel")) {  
    String sph = (String) AdfFacesContext.getCurrentInstance().getPageFlowScope().get("AdfmSavePoint");  
    BindingContext bctx = BindingContext.getCurrent();  
    DCDataControl dcDataControl = bctx.getDefaultDataControl();  
    dcDataControl.restoreSavepoint(sph);  
  } 
  

  I have these doubts:

  1. the button "CANCEL ALL" (so far) AM restore operation is still meaningful (is always useful) when you use the check points? Or can I avoid using the restore of the AM operation, creating a backup point before you enter the fragment and restore it if the user clicks on "RESTORE ALL"?
  2. for all tables: before opening the popup insert/change the backup point is implemented pageFlowScope under the same key 'AdfmSavePoint '. Is it OK or would it be better to use a different key for each table (for example 'AdfmSavePointTable1', 'AdfmSavePointTable2',...)?
  3. If the pageFlowScope already contains a checkpoint under the "AdfmSavePoint" key... What does if I give the floor to new .put ("AdfmSavePoint", sph)? Can I be sure that the old value is overwritten?
  4. is this safe with nested savepoint? For example in my case I want to create a backup before the fragment in the image point is displayed (and restore if the user leaves the fragment by clicking "RESTORE ALL"), then within the fragment, as I said above, I would manage other points of record when inserting/editing tables.
  5. I noticed that clicking on the button "RESTORE ALL" when it relates to the AM-restore operation causes this strange thing: when before displaying the fragment I call SetCurrentRowWithKey on the master istance VO... If I click on "ROLLBACK ALL" posted master VO Records changes and 1 minutes of the main of the VO table is displayed. Why the master istance VO is not reimain in the folder I've previously selected by SetCurrentRowWithKey?
  6. With reference to the expression (*) above. The BTF 'dialogue' I created contains only the page jspx with shape and a return to activity. I also tried a) create (and restore) the backup point, b) to call createInsert inside the "dialog box" operation BTF (see images below), but the createInsert on retail VO istance called inside the 'dialogue' BTF seems not to reflect on the table as when I call createInsert by calling btf. I have to make some adjustments in the 'dialogue' of BTF?

  

  

  Thank you

  Federico

  Federico,

  (1) Yes, what should happen if a user add or edit vo1 and click ok in the dialog box but decided that ask to work must be restored?

  (2) as long as you don't have that a dialog box is open, it should work.

  (3) the flowrate range of page is a map. You can put the same key more than once. If the key already exists, the value is replaced.

  (4) in fact, I don't know, but the sounds of complicated design. I guess you can record more points, but only in the order of creation. It's as if you try to rebuild the framework. BTF yo it even for you, when worn right. Please go to ADF Architecture Square and read and watch it task flow of related things.

  (5) this behavior is as expected. A restore resets all the iterators so thagetto point at the top of he. http://www.Oracle.com/technetwork/Developer-Tools/ADF/learnmore/OCT2010-OTN-Harvest-183714.pdf 'keep the line after cancellation' shows how to handle this situation.

  (6) I suppose have you refresh the table iterator, once you close the dialog box for the new data. But that's only a guess because it depends on how the btf share control of data and the your involved.

  Timo

• [ADF, JDev12.1.3] Which is the best way to define the properties of CIU/fragments of pages. Is the approach that I have used a good choice (for a beginner)?

  Hallo,

  in my app, that I have a lot of pages and fragments in which properties (for example rendered text, disabled, Selected,...), lots of user interface components must be set, before/when the page is displayed, depending on the session and pageFlow scope attributes.

  So far I have created for each page/one backingBean brought bean fragment in which I defined an attribute for each property defined (e.g. 2 properties for each UIC: UIC is 10...) "I have 20 attributes to manage in the bean).

  Then, I linked each attribute of the bean to the respective UIC property. You can see in this my thread (unfortunately without answers ) [ADF, JDev12.1.3] backingBean bean: a lot of properties to set for lots of CIU... is better by using the properties of the binding or access code (created by ID) UIC? a small example. I put the attributes the bean Builder (or in a function of 'action' if the APP properties must be set based on the interaction of the user).

  I would like to know:

  • If it is a good approach / recommended / safe or if there is a better way;
  • If the scope backingBean is OK, or if a larger scope would be better.

  As I asked in the thread in the link above, the situation can become difficult to manage if the PPP for which setting, properties are very different.

  So I'd like if there is no alternative that I can use to get the same result with less effort.

  For example, using the class ComponentReference or invokeOnComponentAPI could simplify my life? And their use could I always use backingBean brought beans?

  Thank you

  Federico

  Federico, please understand that this forum has no sla. I have other work to do, who pays my bills. I will do my best to help, but you can not expect the instant replay.

  (1) you must not use the bean to init your beans. You can delay load or init your beans instead.

  (2) as Frank and says you can use a bean to view range and use it to make your calculations as long as you know how their parameters go to the btf

  (3) you should always use the reference of the component if you bind a component to a bean. Make a habit of all scopes.

  As we do not know how you calculate the State and how often it changes while the Working Group is on the page, it is difficult to give further advice.

  Timo

• [ADF, JDev12.1.3] Problem of formatting attribute VO MONEY when exports it as an Excel file using apache.poi

  Hallo,

  I have a VO with an attribute based on the field of database of MONEY.

  In the configuration of the VO for the attribute I put:

  • In the "Details" tab: Type = BigDecimal
  • In the "Indications of the UI" tab: Format type and Type like the image below

  

  These settings allow the value of the attribute (in the table, inputText) appears with thousands and decimal separator that according to my language - Italian - are. (point) and, (comma).

  For example. Silver number displayed correctly:

  10.123.000,37

  When I write the value of the attribute in an Excel cell using apache.poi...

  cell.setCellValue (attr.toString ());

  ... I see in the cell...

  10123000.3700

  ... Although I'd like to see what...

  10123000,37 (not thousands separator, the comma as separator decimal and only 2 decimal places)

  
  

  You could you kindly help me to get there?
  

  Thank you

  Federico

  Federico, this isn't really a question JDev or ADF. This can be solved by setting the cell format to the cell, you write the number. Like oyu would in excel

  style.setDataFormat(HSSFDataFormat.getBuiltinFormat("#,##0.00"));

  more info on HSSFDataFormat (javadocexamples.COM JAVA DOC BY EXAMPLES) - API, usage, demonstrations and code examples

  Timo

• [ADF, JDev12.1.3] A loop on af: table through "dcIteratorBindings.getAllRowsInRange" takes only 25 lines. Why?

  Hallo,

  I would like to export an af:table in Excel and I tried to apply the method described here http://www.techartifact.com/blogs/2013/08/generate-excel-file-in-oracle-adf-using-apache-poi.html#sthash.VSEYBrdd.UPOaYZ... by vinaykumar2.

  I noticed that the return Excel file contains max 25 rows.

  The VO behind af: table has the default configuration.

  The RangeSize of the iterator property is 25.

  oracle.jbo.Row[] rows = dcIteratorBindings.getAllRowsInRange();
  

  If I put it at 100, the return Excel file contains 100 rows max.

  I would always that all af:table are exported, so I guess I have to settle RangeSize on a very high value (e.g. 100000).

  Is RangeSize property to play with to solve the problem? Or there is a setting/alternative code to use? It affecting a high value will have an impact on performance?

  Thank you

  Federico

  Hi Federico,.

  The RangeSize - 1 value property. You will get all the lines.

• [ADF, JDev12.1.3] How to create a reusable/configurable SelectOneChoiche that displays a range of years?

  Hallo,

  in my application, I would use SelectOneChoiche components a range of years including start/end of the year can be different based on other values/conditions of display.

  I found this thread helpful Andrejus Baranovskis Blog: select a choice with select elements Tag which explains how to fill a PLOUGHSHARE of a managed bean.

  Would it be possible (and how) to create a reusable component (something to drag them to the design-time user interface) configurable with expressions of start/end of year?

  This would avoid as me to write the code to fill the SOC whenever I need one of them.

  Thank you

  Federico

  You can see this example ADF practice: component example declarative ADF which shows how to create a component declarative which shows a decimal lov.

  This Oracle magazine article Oracle ADF: Build Your Own is another example that will guide you throughout the process.

  Timo

• [ADF, JDev12.1.3] How to resize and style default popup of the message of faces?

  Hallo,

  popups messages of faces that I take the floor in managed beans or auto-affichent by the application to show errors (e.g., https://dl.dropbox.com/s/hsje8m0meci2wai/FacesMessage.png?dl=0) do not adjust automatically based on the content.

  I would like to know how I can fix this problem and:

  • If and how I can style messages (content and containing);
  • If there is a simple way to display error messages online (e.g., https://dl.dropbox.com/s/rbw9i4h80mfvcxd/ErrMesInLine.png?dl=0);
  • If you can provide me with, if there are any, some nice links other ways to display messages in the ADF applications.

  Thank you

  Federico

  Well, for automatic resizing, you can use this workaround: https://agungor.wordpress.com/2014/05/14/handling-un-resizable-facesmessage-popup/

  Also, if I remember correctly, you can download the fix for this problem for Oracle Support(if you have support contract).

  Inline messages you must provide the id of the component when you create messages of faces.

  For global inline messages you need to af:messages component.

  As an alternative, you can use something like this: Awasthi (Jdev/ADF) Ashish Blog: better interface user-display the notification message of jQuery (for error, warning, info) to Oracle ADF

  Dario

• [ADF, JDev12.1.3] How to manage cookies (configure/create/read) in the ADF applications?

  Hallo,

  I would like to create a cookie in my ADF application.

  To start I used the code shown in this thread code example for create / read a cookie value? but the cookie seems to not be created.

  It is not present in Firebug or it can be retrieved by the code.

      Cookie userCookie = new Cookie("myCookie", "hello");
      userCookie.setMaxAge(-1);
      FacesContext ctx = FacesContext.getCurrentInstance();
      ((HttpServletResponse) ctx.getExternalContext().getResponse()).addCookie(userCookie);
  
  
      Cookie retrieveCookie = (Cookie) ctx.getExternalContext().getRequestCookieMap().get("myCookie");
      if (retrieveCookie != null)
        System.out.println("My cookie is: " + retrieveCookie.getName() + " " + retrieveCookie.getValue());
  

  What's not in the code?

  There may be something to confiure in the application of the ADF?

  Thank you

  Federico

  1. Cookie userCookie is new Cookie ("MyCookie", "Hello");.
  2. userCookie.setMaxAge(-1);
  3. FacesContext ctx = FacesContext.getCurrentInstance ();
  4. (Ctx.getExternalContext () m:System.NET.FtpWebRequest.GetResponse ()) .addCookie (userCookie) (HttpServletResponse);
  5. Cookie retrieveCookie = ctx.getExternalContext () .getRequestCookieMap () .get ("myCookie") (Cookie);
  6. If (retrieveCookie! = null)
  7. System.out.println ("my cookie is:" + retrieveCookie.getName () + "" + retrieveCookie.getValue ());

  Is - this code is run from the same method in java?

  If this will not work (cookie is added to the http response if you can't get this until the next http request arrives)

  Dario

• [ADF, JDev12.1.3] Session time-out: is it possible to perform a rederict to a URL to be composed on the basis of a model session ARVS?

  Hallo,

  using this tutorial Fortune Minds - Oracle ADF: how to redirect to a custom page each time the session of delay in the application of the ADF? I implemented a simple redirect when the session expires.

  The real URL 'redirect' should be composed according to the value stored in a var to a managed bean sessionScope, but the problem it is that... the afterPhase listener is run after the session has already expired.

  Could you kindly advice me a wokaround or a different approach to achieve this goal?

  Thank you

  Federico

  Cannot use a variable of bean in any scope as the info is gone. You can store the information in a cookie and read the form here.

  Or you use a different method like adventures of the man of Oracle ADF: heroic alternatives to avoid the annoying Popups SessionTimout ADF

  Timo

• [ADF, JDev12.1.3] Best practices for maintaining a form validation

  Hallo,

  in my application, I need to create a registration form which contains fields that must be validated (for example they should follow a format like e-mail, phone number, tax code,...).

  If the data inserted by the user are ok, a new record in my custom db table Users will be created.

  I would like to know which are the best practices for maintaining the validation, which means the place where the controls must be made and a message to the user who fills out the form when something goes wrong.

  The best vo or EO or managed bean? Or some controls should be put in the OS, others in the VO and other in the managed bean?

  I would be happy if you could give me some examples.

  Thank you

  Federico

  Assuming you want the validation on the value of the field to any screen data can be entered in (and possibly web services that rely on the same BC ADF) then put the validation on the definition of the attribute in the EO.

  If you want to add a little more friendliness and eliminate some of the network traffic to the server, you can also implement the validation client in your page - for example by using the regular expression validator.

  https://blogs.Oracle.com/Shay/entry/regular_expression_validation