Declarative validation on view objects

Is it possible to set declarative validation on view objects(which override validation in underlying entity objects)?

[Duplicate post|https://forums.oracle.com/forums/thread.jspa?threadID=2325821&tstart=0]

Similar Messages

  • Validation on View Objects

    Cab we set validation on View Objects to override the validations on underlying entity objects?

    Hi Arun,
    I m using Oracle Fusion Middleware (Jdeveloper ) version 11.1.2.0.0.
    Currently i m very begginer to Oracle ADF and for my knowledge purpose i want to know whether we can write validation on view objects declaratively not programatically to override the entity objects level validation.
    The link u specified contains information related to the validation on view objects programatically not declaratively.
    Using the version that i mentioned, i m not able to create validation on view objects declarativley...

  • Validation at View Object level and not Enity Object

    How would you create validation logic at the view object level and not at the entity object level? I have many VOs that reference the same EO and want some validation logic to be applied only to certain VOs.
    Thanks,
    Quoc

    My use case for this is to perform form validation inputted by the user via a JSPX page.

  • How to put validation between attributes at View Object level in BC4J

    Hi,
    Is it possible in BC4J to put validation between attributes at View Object level?
    I know that I can do it at Entity Object level in validateEntity method, but I have several View Objects connected with one Entity Object and don't want to have the same validation logic for all View Objects.
    Thanks for any help!

    It returns errorWhat error does it return?
    John

  • ADF View object validation. Cannot have same column value multiple time.

    Hi Expert,
    I have a ADF viewobject validation question. I have the Department and employee view objects. Each department have multiple employees. (may be u can also assume. the employee name is an VO attribute not the database field)
    I need to implement the following validation rule
    One department shouldn't have same employee name. How can i implement this validation rule in the ADF-BC.
    Looking forward ur expert suggestions. Thanks
    -t

    Assuming that the employee name (which you have said is a transient attribute) is created by concatenating some other fields, you could, I suppose create a unique index in the DB or a unique validator in the EO to ensure that the department ID (assume you have such an attribute) and the fields that make up the name are unique. It seems kind of unusual to be validating a transient field like this.
    John

  • [SOLVED] Row level view object validation (cross-field/multi-field)

    Hi,
    I'm trying to implement a validation rule across multiple view object fields in ADF 11g (11.1.1.2.0). I have 4 fields that the user needs to either leave all blank or there are some pretty complicated rules around which fields should be specified in combination. I'm having trouble using standard expression type validation rules because:
    - The validation rule is always attached to a particular field
    - The validation rule is not executed if the field is left blank. I need it to.
    - I can't control which field the validation message shows in (it always shows in the field on which the rule is attached).
    Is there any way I can hook into the v
    I've found the following example that seems to tackle similar problems:
    +107. Displaying ADF BC Mandatory Field Errors Using UI Hint Labels+
    http://blogs.oracle.com/smuenchadf/examples/
    It's fairly long and complex solution though, which quite a lot of code to be written. This example is from 10g (in 2007). Does anyone know of a more elegant way to achieve this in 11g (in 2010 :) )?

    Thanks John! I didn't realise you could define entity-level rules - now found it in the Business Rules section of the entity properties.
    One more question: is there any way that I can specify which field is in error when an entity-level validation fails? It would be nice if my error message was attached to the field that is in error.

  • Problem in using View Object for validation

    Hi,
    I have defined a simple swing form to practice. It has one Entity Object and two View objects. One of these view objects is an updatable VO based on the EO and the other one has a simple "select count(*)" from a table. I defined a method validation on one of the EO attributes to see how can i use the VO for validation. On the other hand i defined the Application Module to use both of my views. As far as i undrestood, when i define a VO for AM, the AM will instantiate it the first time it starts running. Here is the code inside the method validation for FirstName attribute:
    /**Validation method for FirstName
    public boolean validateFirstName(String data) {
    ViewObject vo = getDBTransaction().getRootApplicationModule().findViewObject("CountEmployeeInstance");
    if (vo == null) {
    System.out.println("vo is null");
    else {
    vo.executeQuery();
    if (vo.hasNext()){
    System.out.println("count = " + ((CountEmployeeRowImpl) vo.next()).getCount());
    else {
    System.out.println("vo has no next");
    return true;
    The problem is that vo.executeQuery() does not return any record. In fact the vo.hasNext() returns false and i get the message "vo has no next" on the console. Please pay attention that the VO's sql statement is SELECT COUNT(*) and it always returns a record. I found that if i use vo.closeRowSet() before vo.executeQuery() everything works fine.
    Please tell me that what is my problem and why is it working like this?
    Best Regards,
    Alireza Vali

    Chris,
    1- Every thing is fine with the ADF model layer in this practice. I have tested it by using Test option on AM and it works. It works exactly the same as how it works throug swing UI that i use for it.
    2- The VO is beeing found and as you see in the code, i have tested it by "if (vo == null)" just after the statement which finds it and vo is not null which means it has been instantiated by AM as it was supposed to.
    3- The VO's SQL statement is "SELECT COUNT(*) FROM EMPLOYEE" with no where clause. I have 14 records in this table.
    Every thing is OK with swing form. It runs and shows the records and all the binded operations like "next record", "previous record" and so on work perfectly on the records.
    4- The code i used is a combination of two examples. Example 9-7 and 9-8 in pages 9-12 and 9-13 of mentioned document.
    Now my findings:
    I changed the code to the following:
        /**Validation method for FirstName
        public boolean validateFirstName(String  data) {
            ViewObject vo = getDBTransaction().getRootApplicationModule().findViewObject("MaxEmployeeIdInstance");
            if (vo == null) {
                System.out.println("vo is null");
            else {
                //vo.closeRowSet();
                vo.executeQuery();
                System.out.println("Row Count = " + vo.getRowCount());
                System.out.println("Default Slot = " + vo.getCurrentRowSlot());
                vo.next();
                System.out.println("Slot after next() = " + vo.getCurrentRowSlot());
                vo.reset();
                System.out.println("Slot after reset() = " + vo.getCurrentRowSlot());
                vo.first();
                System.out.println("Slot after first() = " + vo.getCurrentRowSlot());
                vo.last();
                System.out.println("Slot after last() = " + vo.getCurrentRowSlot());
                System.out.println("----------------------");
                vo.executeQuery();
                System.out.println("Deafault index = " + vo.getCurrentRowIndex());
                vo.next();
                System.out.println("Index after next() = " + vo.getCurrentRowIndex());
                vo.reset();
                System.out.println("Index after reset() = " + vo.getCurrentRowIndex());
                vo.first();
                System.out.println("Index after first() = " + vo.getCurrentRowIndex());
                vo.last();
                System.out.println("Index after last() = " + vo.getCurrentRowIndex());
                System.out.println("Slot Before First = " + vo.SLOT_BEFORE_FIRST);
                System.out.println("Slot Beyound Last = " + vo.SLOT_BEYOND_LAST);
            return true;
        }Here are the results :
    Row Count = 1
    Default Slot = 0
    Slot after next() = 3
    Slot after reset() = 0
    Slot after first() = 0
    Slot after last() = 0
    Deafault index = 0
    Index after next() = -1
    Index after reset() = 0
    Index after first() = 0
    Index after last() = 0
    Slot Before First = 2
    Slot Beyound Last = 3
    As you see, after the execution of the statement "vo.executeQuery()" the The RowIterrator pointer is not pointing to the slot before the first record but it is pointing to the first record itself. And that is why the statement "if (vo.hasNext()" returns false because we just have one record and RowIterrator Index is standing on that record and there is no next record present. The very important thing is that even reset() method does not set the index to the slot before the first record and it sends it to the first record.
    After that, i took the statemet "vo.closeRowSet()" out of the comment and here are the results:
    Row Count = 1
    Default Slot = 2
    Slot after next() = 0
    Slot after reset() = 2
    Slot after first() = 0
    Slot after last() = 0
    Deafault index = -1
    Index after next() = 0
    Index after reset() = -1
    Index after first() = 0
    Index after last() = 0
    Slot Before First = 2
    Slot Beyond Last = 3
    These are the exact things that we expected from the first. After query execution, the pointer is set to the slot before first record and the reset() method does its defined job which is sending the pointer to the slot before the the first record.
    My Assumptions:
    The Rowset which is created by AM is somehow different from the RowSet which you create in your program. I am absolutely sure that this functionality is not a bug but a design decission. I look at my simple program and see that when it runs, the data is queried and shown on the screen which is all done by AM by instantiating my VO and executing the query on it. AM reasonably must put the RowSet pointer on the first record and not the slot before first record. And i am sure that if i use reset() method on the shown RowSet, the pointer goes to the first record and the data on the screen does not get cleared. Whe we use vo.closeRowSet() and execute the query again, the AM made RowSet is closed and a new one is created and the new RowSet is your's not AM's so it functions as you expect.
    Best Regards,
    Alireza Vali

  • Creating View Objects at Runtime for Validation

    In Oracle® Application Development Framework
    Developer’s Guide For Forms/4GL Developers tutorial there is a topic about Creating View Objects at Runtime for Validation.
    Is there any sample code available for this topic?
    Please help
    Regards
    S Karar

    I have created a helper method . The code is given below
    protected ViewObject getValidationVO(String viewObjectDefName) {
    // Create a new name for the VO instance being used for validation
    String name = "Validation_" + viewObjectDefName.replace('.', '_');
    // Try to see if an instance of this name already exists
    ViewObject vo = getDBTransaction().getRootApplicationModule().findViewObject(name);
    // If it doesn't already exist, create it using the definition name
    if (vo == null) {
    vo = getDBTransaction().getRootApplicationModule().createViewObject(name,viewObjectDefName);
    return vo;
    // Validation_bc4j_project of type ApplicationModule not found
    and created a validation method.
    The code inside validation method is given below.
    public boolean validateAvgMr(Number data) {
    String batch_catg = getQuality();
    // Get the view object instance for validation
    ViewObject vo = getValidationVO("bc4j_project.v_sqc0150");
    if (getTestStage()=="DOLLOP" && getQuality()=="DECO")
    // Set it's bind variables (which it will typically have!)
    vo.setNamedWhereClauseParam("batch_catg","DECO");
    vo.executeQuery();
    Number dol_mr_lcl=(Number)vo.first().getAttribute("DolMrLclStd");
    setStdMrLcl(dol_mr_lcl);
    return true;
    return true;
    I have checked the validation view and it is returing value with the same bind variable value but is not returning any value when using inside this method validation.
    I have checked several times but can't find the fault in the code.
    Please help

  • ADF forms based on BPM human tasks - Invoking webservices/view objects.

    Hi All,
    Is anyone aware of whether the following is a valid implementation that has been carried out before.
    1. ADF forms based on BPM 11G human tasks.
    2.The ADF forms invoke webservices via Webservice data controls. It is pertinent to note that the webservice bring back complex data types. We've tried writing a few forms, resulting in data benig brought back, but not being able to print them to the screen.
    3. The ADF forms also use View Object based on sql to bring back tables of data. If view objects are embedded within the forms, the applciation gives rise to a null pointer exception.
    Considering the form will be invoked via a BPM worklist entry, is there a setting or configuration we should consider before hand. Is this feasible, is there knowledge of this being done commercially.
    Any examples or information regarding the same will be immensely helpful.
    Thanks and Regards,
    Preethi.
    NB : I have posted this in the BPM forum as well as I feel it is relevant to both BPM and ADF.

    Hi Joonas.
    Plese let me explain me better for your understanding
    A big summary for what I meant it's the following:
    1- In the procces you made, when you add the HT activity, you have to implement it, this means declare the input(s) parameters you want. This implementation create the .task file.
    2- Create an application, and projects as HT you have. Each poject are based on the .task file, and automatically create a Data Control (for each project based on a .task) with all you need.
    This w'll be an empty application, so you can customize it all you want. The task selected should have all the parameters previously defined. Those parameters can change if you want.
    2- Create a page(s) in the task flow for the task implementation. You can even split the the payload of the task in differents pages, create your custom pages and any logic you need.
    3- An important aspect is how to match these application with the HT implemented in the process. It's possible, it's a configuration en the Enterprise Manager.
    4- Deploy your application
    All these are explain in the book I mentioned
    Th book you can find it here:
    https://blogs.oracle.com/soacommunity/entry/oracle_soa_suite_11g_handbook_1
    Regards Dariel.
    PS: Please, let me know if you need more details.

  • Declarative Validation

    Hi,
    I have a master detail views in which master view has bind variables. one of the detail record's column value depends on the master record's column value. Is there any possibility to declaratively validate the detail record's column based on the master record's column value.
    I tried with the Compare Rule on detail record's column to compare with the master view object's attribute. As the master view has bind variables, the validation is failing even I enter the correct data.
    Can you please help in setting declarative validation for the detail view object's attibutes.
    Thanks and Regards,
    S R Prasad

    I have a table with columns Control_Num, Accident_Date, Received_Date in the Master table. In the detail table I have Control_Num, Service_Date columns. The control number in detail table is foriegn key reference to control number in master table. We have to make sure the service_date in detail record should not be before the accident date and should not be after received date.
    We have a bind variable(control_num) for the query on the master view object, which helps to fetch one master record at a time. The validation should happen for the detail record based on the correspodning master record.
    Thanks and Regards,
    S R Prasad

  • Refreshing the screen using a View Object

    Hi Experts,
    Here is my requirement.
    I have a View Object which queries the database and displays the results.
    So I want to my VO to be executed when I click on Refresh button.
    How can I achieve this?
    Is there any example for this?
    Thanks in advance

    I think the mistake u did is populating the collection/entity of your custom view in some other place rather than on_new_focus method of the context class. So when u first time come to the view, it is calling your custom code and populating your custom view. But when u click new, it is not executing that method and it is not refreshing. on_new_focus is called everytime
    you change to new or open in edit mode..that method should be declared as event handler method..
    Move your code to the on_new_focus method of the particular context node. see standard codes how that is created and used...
    e.g. you can see the component/view BT112H_SC/Details, context node BTPARTNERSET and method CREATE_BTPARTNERSET of CL_BT112H_S_DETAILS_CTXT of how it is used.

  • Using EL to get values from View Objects

    Hello again!
    I' m using jdev 11.1.1.4.0, with adf and business components
    Is there any way i can get a value to an af:outputText from a view object's field without
    a) having to expose all fields that I need in bindings tab?
    b) having to declare all fields to a backing bean
    I have a statistical table with about 30 numbers in a record and it would make my project impossible to follow!
    Some EL on the af:outputText with a parameter to a function on my backing bean, would sound perfect, but I've read that it's impossible...
    Any clues?
    Thank you for your efforts!
    Nikos

    I did not understand you.
    will the drag and drop your attribute on your page will solve your problem?
    or do you need to create attributeValues biding for single attribute? if yes do the following:
    1- From your page, right click and select Go to Page Definition.
    2- From the binding section, click the plus green icon to create a new control biding, and choose attributeValues from the list.
    3- select your data source from the list or create a new one, then select the attribute you need.
    4- now you have a biding, and you can set the value for your output text.
    value =#{biding.yourAttribute.inputValue}

  • How to retrieve the values from a Transient View Object

    Hi Experts,
    I am using Jdevelpoer11.1.1.5.0. I created one Transient view object with attributes EmpId,Salary.
    In Backing Bean i will create rows for that view object and display it in the form of <af:Table> like Empid, Salary and an Update Link.
    Now my problem is i want to update the salary of the particular EmpId. For Example if the EmpId is 100 and salary is 10000 now i want to increase the salary to 20000 and if i click on the update button; i want to retrieve the particular employee details in my backing bean. How can i acheive this?
    Thanks in advance.

    A better approach would be to programmatically populate rows in the <VO>Impl.java by overriding the executeQueryForCollection(0 as specified here -
    http://adfpractice-fedor.blogspot.in/2011/01/adf-bc-programmatically-populated-vo.html
    You can write the logic to update the salary in an AM method then on click of Update or in the getter of Salry field if logic is valid for all fields...

  • Uix two view-objects on one entity-object synchronize

    Hi All
    I want to add some uix pages to an old project using ADF UIX and Business Components.
    I have an entity object to a table witch about 50 fields.
    Now I create two view objects due to a better performance. One witch seven attributes for the overwiew and one with all attributes for the detail page.
    They are related via a view link.
    I create the overview as a read-only-table and the detail-page as an input-form.
    The proplem is that the synchronization don't work. The detail page shows the first dataset ever.
    Has anyone a solution or a tip where I can found that?
    Is where a performance problem if I use one view-object for both pages?
    Thanks in advance
    Roger

    Use custom DataAction for the first page:
    package controller;
    import oracle.adf.controller.struts.actions.DataAction;
    import oracle.adf.controller.struts.actions.DataActionContext;
    public class Class1 extends DataAction
      protected void validateModelUpdates(DataActionContext actionContext)
         //super.validateModelUpdates(actionContext);
          // put you custom validation here
    }http://www.oracle.com/technology/products/jdev/collateral/papers/10g/ADFBindingPrimer/index.html#usingdataaction
    Message was edited by:
    Sasha
    Message was edited by:
    Sasha

  • How to create dynamic View Object and Dynamic Table

    Dear ll
    I want to create a dynamic view object and display the output in a dynamic table on the page.
    I am using Jdeveloper 12c "Studio Edition Version 12.1.2.0.0"
    This what I did:
    1- I created a read only view object with this query "Select sysdate from dual"
    2- I added this View object to the application module
    3- I created a new method that change the query of this View object at runtime
        public void changeVoQuery(String dbViewName) {
            String sqlstm = "Select * From " + dbViewName;
            ViewObject dynamicVo = this.findViewObject("DynamicVo");
            if (dynamicVo != null) {
                dynamicVo.remove();
            dynamicVo = this.createViewObjectFromQueryStmt("DynamicVo", sqlstm);
            dynamicVo.executeQuery();
    4- I run the application module for testing the method and I passed "Scott.Emp" as a parameter and the result was Success
    5- Now I want to show the result of the view on the page, so I draged and dropped the method from the data control as a parameter form
    6- I dragged and dropped the view Object "DynamicVo" as a table and I choose "generate Column Dynamically at runtime". This is the page source
    <af:panelHeader text="#{viewcontrollerBundle.SELECT_DOCUMTN_TYPE}" id="ph1">
            <af:panelFormLayout id="pfl1">
                <af:inputText value="#{bindings.dbViewName.inputValue}" label="#{bindings.dbViewName.hints.label}"
                              required="#{bindings.dbViewName.hints.mandatory}"
                              columns="#{bindings.dbViewName.hints.displayWidth}"
                              maximumLength="#{bindings.dbViewName.hints.precision}"
                              shortDesc="#{bindings.dbViewName.hints.tooltip}" id="it1">
                    <f:validator binding="#{bindings.dbViewName.validator}"/>
                </af:inputText>
                <af:button actionListener="#{bindings.changeVoQuery.execute}" text="changeVoQuery"
                           disabled="#{!bindings.changeVoQuery.enabled}" id="b1"/>
            </af:panelFormLayout>
        </af:panelHeader>
        <af:table value="#{bindings.DynamicVo.collectionModel}" var="row" rows="#{bindings.DynamicVo.rangeSize}"
                  emptyText="#{bindings.DynamicVo.viewable ? 'No data to display.' : 'Access Denied.'}"
                  rowBandingInterval="0" selectedRowKeys="#{bindings.DynamicVo.collectionModel.selectedRow}"
                  selectionListener="#{bindings.DynamicVo.collectionModel.makeCurrent}" rowSelection="single"
                  fetchSize="#{bindings.DynamicVo.rangeSize}" filterModel="#{bindings.DynamicVoQuery.queryDescriptor}"
                  queryListener="#{bindings.DynamicVoQuery.processQuery}" filterVisible="true" varStatus="vs" id="t1"
                  partialTriggers="::b1">
            <af:iterator id="i1" value="#{bindings.DynamicVo.attributesModel.attributes}" var="column">
                <af:column headerText="#{column.label}" sortProperty="#{column.name}" sortable="true" filterable="true"
                           id="c1">
                    <af:dynamicComponent id="d1" attributeModel="#{column}"
                                         value="#{row.bindings[column.name].inputValue}"/>
                </af:column>
            </af:iterator>
        </af:table>
    when I run the page this error is occured
    <Nov 13, 2013 2:51:58 PM AST> <Error> <oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter> <BEA-000000> <ADF_FACES-60096:Server Exception during PPR, #1
    javax.el.ELException: java.lang.NullPointerException
    Caused By: java.lang.NullPointerException
    Can any body help me please
    thanks

    Have you seen Shay's video https://blogs.oracle.com/shay/entry/adf_faces_dynamic_tags_-_for_a
    All you have to do is to use the dynamic table to get your result.
    Timo

Maybe you are looking for

  • Ipod nano 8g not detected by windows and itunes please help

    ok i recently got an ipod nano and i havent been able to put anything on it cuz it isnt detected by my pc. it just says usb device not recognized when i connect it. BUT i can still charge my ipod so i dont think its the ipod or the usb cable. the onl

  • Display Invoice Details in 3 pages only, as per the tags, data is overflown

    Hi, I have a requirement to display invoice details in pdf output from XML Source using rtf template. The PDF output will display invoice details for One address number per page. When I execute the report in JDE standard version I get the pdf output

  • Java Plugin not working with firefox 3.o.13  and linux.

    this is my ln -s to the plugin at /usr/lib/mozilla/plugins libjavaplugin_oji.so -> /usr/local/jdk1.6.0_16/jre/plugin/i386/ns7/libjavaplugin_oji.so Any ideas why java is not working? Here's the ln -s again: #pwd #/usr/lib/mozilla/plugins # ls -l lrwxr

  • Read a Kernel Panic?

    Is there any way from reading this message to tell what is actually causing the kernel panic errors? Thanks

  • IView Displaying sets of 15 DMS documents at a time.

    I have an iView which is displaying DMS documents. It currently displays 15 at a time with "1-15 16-30 31-45 46-53 > >>  / 53 " displayed at the bottem of the list. How do I get it to display more than 15? Even better if someone could point me to som