NPE in the method so that access to the contents of the line.

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  Hello.
  I use Jdeveloper 11.1.1.3.0 ADF BC and ADF Faces.
  I want to implement the simple hide/show button in my page. The use case is as follows,
  I will give the step and scripts required to reproduce the case if anyone is interested.
  1 - the database contains a table TEST and here is the script to create. where the flag column is used as an indicator to show or hide line in my page.

  CREATE TABLE TEST
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    ID    NUMBER,
    NAME  VARCHAR2(50 BYTE),
    FLAG  VARCHAR2(1 BYTE)
  )
  
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  1, 'one', 'Y'); 
  INSERT INTO TEST ( ID, NAME, FLAG ) VALUES ( 
  2, 'two', 'Y'); 
  INSERT INTO TEST ( ID, NAME, FLAG ) VALUES ( 
  3, 'three', 'Y'); 
  INSERT INTO TEST ( ID, NAME, FLAG ) VALUES ( 
  4, 'four', 'Y'); 
  commit;

  2 - I created my business EO, VO, Module of Application components. and I have added where clause to my display. and here is the full query.

  SELECT Test.ID, 
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         Test.FLAG
  FROM TEST Test
  WHERE FLAG = 'Y'

  3 - I created a page and drag and drop my TestView1 of the data control in the table of the ADF in my page.
  4. Add an additional column and slide SetCurrentRowWithKey action as a button and set the parameter #{row.rowKeyStr}, and create an action Binder method (hideRow) to this button in a bean.
  5. change the (hideRow) method to set the Flag attribute for the current selected row "N", and then rerun the query. the goal is to hide the line of the screen.
  6 - drag a new button (cancel the changes) and bind its action to a method that iterates over all the lines in the view object and all of the flag attribute to 'Y' and rerun the query. The goal is to show hidden lines.
  Here is my page source

  <?xml version='1.0' encoding='UTF-8'?>
  <jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" version="2.1"
            xmlns:f="http://java.sun.com/jsf/core"
            xmlns:h="http://java.sun.com/jsf/html"
            xmlns:af="http://xmlns.oracle.com/adf/faces/rich">
    <jsp:directive.page contentType="text/html;charset=UTF-8"/>
    <f:view>
      <af:document id="d1">
        <af:messages id="m1"/>
        <af:form id="f1">
          <af:table value="#{bindings.TestView1.collectionModel}" var="row"
                    rows="#{bindings.TestView1.rangeSize}"
                    emptyText="#{bindings.TestView1.viewable ? 'No data to display.' : 'Access Denied.'}"
                    fetchSize="#{bindings.TestView1.rangeSize}"
                    rowBandingInterval="0"
                    filterModel="#{bindings.TestView1Query.queryDescriptor}"
                    queryListener="#{bindings.TestView1Query.processQuery}"
                    filterVisible="true" varStatus="vs"
                    selectedRowKeys="#{bindings.TestView1.collectionModel.selectedRow}"
                    selectionListener="#{bindings.TestView1.collectionModel.makeCurrent}"
                    rowSelection="single" id="t1" styleClass="AFStretchWidth"
                    binding="#{Test.myTable}">
            <af:column sortProperty="Id" filterable="true" sortable="true"
                       headerText="#{bindings.TestView1.hints.Id.label}" id="c1">
              <af:inputText value="#{row.bindings.Id.inputValue}"
                            label="#{bindings.TestView1.hints.Id.label}"
                            required="#{bindings.TestView1.hints.Id.mandatory}"
                            columns="#{bindings.TestView1.hints.Id.displayWidth}"
                            maximumLength="#{bindings.TestView1.hints.Id.precision}"
                            shortDesc="#{bindings.TestView1.hints.Id.tooltip}"
                            id="it3">
                <f:validator binding="#{row.bindings.Id.validator}"/>
                <af:convertNumber groupingUsed="false"
                                  pattern="#{bindings.TestView1.hints.Id.format}"/>
              </af:inputText>
            </af:column>
            <af:column sortProperty="Name" filterable="true" sortable="true"
                       headerText="#{bindings.TestView1.hints.Name.label}"
                       id="c3">
              <af:inputText value="#{row.bindings.Name.inputValue}"
                            label="#{bindings.TestView1.hints.Name.label}"
                            required="#{bindings.TestView1.hints.Name.mandatory}"
                            columns="#{bindings.TestView1.hints.Name.displayWidth}"
                            maximumLength="#{bindings.TestView1.hints.Name.precision}"
                            shortDesc="#{bindings.TestView1.hints.Name.tooltip}"
                            id="it2">
                <f:validator binding="#{row.bindings.Name.validator}"/>
              </af:inputText>
            </af:column>
            <af:column sortProperty="Flag" filterable="true" sortable="true"
                       headerText="#{bindings.TestView1.hints.Flag.label}"
                       id="c2">
              <af:inputText value="#{row.bindings.Flag.inputValue}"
                            label="#{bindings.TestView1.hints.Flag.label}"
                            required="#{bindings.TestView1.hints.Flag.mandatory}"
                            columns="#{bindings.TestView1.hints.Flag.displayWidth}"
                            maximumLength="#{bindings.TestView1.hints.Flag.precision}"
                            shortDesc="#{bindings.TestView1.hints.Flag.tooltip}"
                            id="it1">
                <f:validator binding="#{row.bindings.Flag.validator}"/>
              </af:inputText>
            </af:column>
            <af:column id="c4">
              <af:commandButton
                                text="hide"
                                disabled="#{!bindings.setCurrentRowWithKey.enabled}"
                                id="cb1" partialTriggers="::t1"
                                action="#{Test.hideRow}" partialSubmit="false"/>
            </af:column>
          </af:table>
          <af:commandButton actionListener="#{bindings.Rollback.execute}"
                            text="Rollback"
                            immediate="true" id="cb2">
            <af:resetActionListener/>
          </af:commandButton>
          <af:commandButton actionListener="#{bindings.Commit.execute}"
                            text="Commit"
                            id="cb3"/>
          <af:commandButton text="cancel Changes" id="cancel"
                            action="#{Test.showAllHiddenRows}"
                            partialSubmit="false"/>
        </af:form>
      </af:document>
    </f:view>
    <!--oracle-jdev-comment:preferred-managed-bean-name:Test-->
  </jsp:root>

  And here's my two cents
  

  package view.bean;
  
  import model.views.TestViewImpl;
  
  import oracle.adf.model.BindingContext;
  
  import oracle.adf.model.binding.DCBindingContainer;
  
  import oracle.adf.model.binding.DCIteratorBinding;
  
  import oracle.adf.view.rich.component.rich.data.RichTable;
  import oracle.adf.view.rich.context.AdfFacesContext;
  
  import oracle.binding.BindingContainer;
  import oracle.binding.OperationBinding;
  
  import oracle.jbo.Row;
  import oracle.jbo.RowSetIterator;
  import oracle.jbo.ViewObject;
  
  public class Test
  {
      private RichTable myTable;
  
      public Test()
      {
      }
  
      public BindingContainer getBindings()
      {
          return BindingContext.getCurrent().getCurrentBindingsEntry();
      }
  
    
  
         public String hideRow()
      {
          BindingContainer bindings = getBindings();
          OperationBinding operationBinding =
              bindings.getOperationBinding("setCurrentRowWithKey");
          Object result = operationBinding.execute();
          DCBindingContainer dc = (DCBindingContainer)bindings;
          DCIteratorBinding iterator =
              (DCIteratorBinding)dc.findIteratorBinding("TestView1Iterator");
          iterator.getCurrentRow().setAttribute("Flag", "N");
          ViewObject vo = iterator.getViewObject();
          TestViewImpl testVO = (TestViewImpl)vo;
          testVO.executeQuery();
          AdfFacesContext adfFacesContext = AdfFacesContext.getCurrentInstance();
          adfFacesContext.addPartialTarget(this.getMyTable());
          return null;
      }
  
     
      public String showAllHiddenRows()
      {
          // Add event code here...
          BindingContainer bindings = getBindings();
          DCBindingContainer dc = (DCBindingContainer)bindings;
          DCIteratorBinding iterator =
              (DCIteratorBinding)dc.findIteratorBinding("TestView1Iterator");
          ViewObject vo = iterator.getViewObject();
          TestViewImpl testVO = (TestViewImpl)vo;
          RowSetIterator rsi = testVO.createRowSetIterator(null);
          rsi.reset();
          Row current;
          while (rsi.hasNext())
              {
                  current = rsi.next();
                  System.out.println("current flag " + current.getAttribute("Flag").toString());
                  current.setAttribute("Flag", "Y");
  
              }
          rsi.closeRowSetIterator();
          testVO.executeQuery();
          AdfFacesContext adfFacesContext = AdfFacesContext.getCurrentInstance();
          adfFacesContext.addPartialTarget(this.getMyTable());
          return null;
      }
  
      public void setMyTable(RichTable myTable)
      {
          this.myTable = myTable;
      }
  
      public RichTable getMyTable()
      {
          return myTable;
      }
  }

  the problem is, when I click on the button that hide the indicator of the value N, but the line is always indicated in the table, even if I re - run the query. I want to hide the line, and when click Cancel button I want to re - show the line.
  Is this bug or am I missing something?
  
  This problem is driving me crazy, it takes a full day of work.
  Cannot Jdeveloper solve this simple use case.
  
  Any help is highly appreciated
  
  Edited by: 857800 may 18, 2011 23:46
  
  Published by: 857800 on May 19, 2011 05:08

  OK, I tried your use case and well, I managed to do the work.
  I don't know whether or not this behavior you're seeing is a mistake. We will, one of the Oracle who comment.
  The problem you have is that you set the value "n" indicator in the set of lines, but do not save your work in the db (no commit). Then when you update the table and display the line (now with indicator = 'n') which does not clearly where clause in the VO. So the framework is not a football game the where clause with the cache lines.

  Now to the solution:
  Remove the line that you just change the flag of "n" of the collection (which does not remove it from the DB) line went after the update of the table. It's still in the comic book, so get it if you run the query again.
  You add in your method of hideRow() iterator.getCurrentRow (.removeFromCollection ()); } After the definition of the indicator to "n".
  Resulting code:

         public String hideRow()
      {
          BindingContainer bindings = getBindings();
          OperationBinding operationBinding =
              bindings.getOperationBinding("setCurrentRowWithKey");
          Object result = operationBinding.execute();
          DCBindingContainer dc = (DCBindingContainer)bindings;
          DCIteratorBinding iterator =
              (DCIteratorBinding)dc.findIteratorBinding("TestView1Iterator");
          iterator.getCurrentRow().setAttribute("Flag", "N");
          iterator.getCurrentRow().removeFromCollection();
  //        ViewObject vo = iterator.getViewObject();
  //        TestViewImpl testVO = (TestViewImpl)vo;
  //        testVO.executeQuery();
          AdfFacesContext adfFacesContext = AdfFacesContext.getCurrentInstance();
          adfFacesContext.addPartialTarget(this.getMyTable());
          return null;
      }
  

  As you can see the executeQuery() is not necessary of not more that it will come to the line.
  to get the rear lines

   public String showAllHiddenRows()
      {
          // Add event code here...
          BindingContainer bindings = getBindings();
          DCBindingContainer dc = (DCBindingContainer)bindings;
          DCIteratorBinding iterator =
              (DCIteratorBinding)dc.findIteratorBinding("TestView1Iterator");
          ViewObject vo = iterator.getViewObject();
          TestViewImpl testVO = (TestViewImpl)vo;
          // get all rows back
          testVO.executeQuery();
          RowSetIterator rsi = testVO.createRowSetIterator(null);
          rsi.reset();
          Row current;
          while (rsi.hasNext())
              {
                 current = rsi.next();
                 String id = current.getAttribute("Id").toString();
                 System.out.println("current flag " + current.getAttribute("Flag").toString() + " ID:"+id);
                 current.setAttribute("Flag", "Y");
  
              }
          rsi.closeRowSetIterator();
          AdfFacesContext adfFacesContext = AdfFacesContext.getCurrentInstance();
          adfFacesContext.addPartialTarget(this.getMyTable());
          return null;
      }
  

  Yet, I don't know if it will work in all circumstances (for example, you have 1000 + lines). It is up to you to test...

  Timo

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  Hello

  JDev 11.1.2.4

  I put in place the mechanism to keep the current line on the restoration.

  http://andrejusb.blogspot.ch/2013/03/ADF-rollback-and-keep-current-row.html

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  }

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  }

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  at oracle.jbo.server.BaseSQLBuilderImpl.doEntitySelect(BaseSQLBuilderImpl.java:552)

  at oracle.jbo.server.EntityImpl.doSelect(EntityImpl.java:8311)

  at oracle.jbo.server.EntityImpl.populate(EntityImpl.java:6975)

  at oracle.jbo.server.EntityImpl.merge(EntityImpl.java:7314)

  at oracle.jbo.server.EntityCache.addForAltKey(EntityCache.java:1087)

  at oracle.jbo.server.EntityCache.add(EntityCache.java:541)

  at oracle.jbo.server.ViewRowStorage.entityCacheAdd(ViewRowStorage.java:3173)

  at oracle.jbo.server.ViewRowImpl.entityCacheAdd(ViewRowImpl.java:3799)

  at oracle.jbo.server.ViewObjectImpl.createInstanceFromResultSet(ViewObjectImpl.java:5913)

  at oracle.jbo.server.QueryCollection.populateRow(QueryCollection.java:3637)

  at oracle.jbo.server.QueryCollection.fetch(QueryCollection.java:3492)

  at oracle.jbo.server.QueryCollection.get(QueryCollection.java:2209)

  at oracle.jbo.server.ViewRowSetImpl.getRow(ViewRowSetImpl.java:5125)

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  at oracle.jbo.server.ViewRowSetIteratorImpl.refresh(ViewRowSetIteratorImpl.java:3058)

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  Hi Experts,
  
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  Add after the table and attathed button action on the mynewmanagedbean.java bean managed.
  At the time of the Test_T1 page filled with a few No.. lines (such as 9).
  How can I access all the lines above through the key without selection of these.
  In fact, I want to print all the rows of the table in the log at the time to press the button.
  
  Thanks in advance.

  Sorry for the delay, the code was copied from another test case. You can work directly with the line...
  I created a new test case based on the departments of the HR schema table:

  import oracle.adf.model.BindingContext;
  import oracle.adf.model.bean.DCDataRow;
  import oracle.adf.model.binding.DCBindingContainer;
  import oracle.adf.model.binding.DCIteratorBinding;
  import oracle.adf.share.logging.ADFLogger;
  
  import oracle.jbo.Row;
  
  public class DumpRows
  {
      private static ADFLogger _logger = ADFLogger.createADFLogger(DumpRows.class);
      public DumpRows()
      {
      }
  
      public String cb3_action()
      {
          DCBindingContainer bindings =
          (DCBindingContainer)BindingContext.getCurrent().getCurrentBindingsEntry();
          DCIteratorBinding dcIteratorBindings =
          bindings.findIteratorBinding("DepartmentsView1Iterator");
  
          // Get all the rows of a iterator
          Row[] rows = dcIteratorBindings.getAllRowsInRange();
          for (Row row : rows) {
              String depname = (String)row.getAttribute("DepartmentName");
              _logger.info(depname);
          }
          return null;
      }
  }
  

  As you do not have the class of line interface build you must get the attributes in their names. Be careful here, because any misspelling is cought only when you run the application.

  Timo

• Disable access to the lines calculated in 11.1.2

  Hello
  
  I use a v11.1.2 of EPMA planning application using calculation Manager to create the business rule.
  
  In fact, I have a very simple request to disable (write) access to the cells, calculated by the business rule.
  
  This option is automatically made to the calculated by the formula of Member members. is it possible to do for calculated members by business rules rather than derivative of the cell by the validation rule.
  
  Thanks in advance.

  If you have a member that you want to write in a form a reading in there, you have a few options:
  (1) set the line or column must be set to read-only - in order to mix it with the accessible elements in writing, you must configure a separate section.
  2) there is an option to set an entire form read-only.
  (3) finally well advised against it, you could do a dynamic account which was equivalent to the other account - no real need to do so - you should doe #1.

  Kind regards

  John A. Booth
  http://www.metavero.com

• I want a user to be able to set day/remove the lines that they inserted

  Hi guys,.
  
  I have a table 2 inserting users. They can also change/remove lines in the table. However, I don't want them to be able to set day/remove other ranks of users. I just want that they have update/remove at the level of the line.
  
  How can this be achieved?
  
  Thank you

  I don't think that Oracle Label Security would be as good as opions as just using row-level security, RLS, also say Fine Gain Access Control, FGAC, just in this case. Private virtual database, CAE, has been mentioned, but Oracle defines EVP as RLS more Oracle contexts so use, technically, all that is necessary if only the user column pseudo-device is used to apply the predicate checking is RLS. From a practical point of view, there is no real difference, but Oracle made the distinction in the manual.

  IMHO - Mark D Powell-

• The line to type under the tabs disappeared. How can I get that back?

  The line under the tabs - where I could type in a question, view the address of the web site or web site is missing. How can I get that back?

  Hi WriteGirl,

  You can click View > toolbars > and check "Bar of Navigation" to get this back bar.

• I can't create a shortcut to the site on my desktop, when I click on the url bar I can drag on the browser to open a new, but as I drag him on my desktop I get the circle with the line through it, one that looks like a no entry sign. Help?

  I can't create a shortcut to the site on my desktop, when I click on the url bar I can drag on the browser to open a new, but as I drag him on my desktop I get the circle with the line through it, one that looks like a no entry sign. Help

  Try to drag the image to id web site (favicon) on the left side of the address bar, instead of the URL.

• H have a computer that runs windows vista Ive had on the line using Xp professional, but it seems that I can't find a compatible driver for the audio card suggestions?

  I have a computer running windows vista that Ive had on the line running on the line with professional Xp but it seems that I can't find a compatible driver for the audio device. Ant suggestions? The Pc has a legacy, it's a Compaq laptop

  Hi morningstar410,
   
  -What is the brand and model of your laptop? Specify the same thing to help us find the right audio driver for you.
  -For which version of the operating system you are looking for the driver?
   
  Visit the following link and check if you download the drivers here:
  http://www.Compaq.com/CPQ-country/cpq_support.html
   

  In the meantime, follow the three steps solution given in the link below and see if this helps you.

  No sound in Windows

   
  Keep me updated on the status of the issue.