Set a value of Application using PL/SQL element

I have a question of enforcement F101_MAINTENANCE it needs is the value set according to the values in a table. The value would be a piece of HTML code.

Ideally this would be verified every time that a page is loaded and the value is printed on the screen on every page.

Is there a way to do this?

I use 4.0.2 on 11g

Hi Craig,.

To set an application using PL/SQL item value:

// some examples
:F101_MAINTENANCE := 'some value';  // a varchar
:F101_MAINTENANCE := 123;           // a number
:F101_MAINTENANCE := SYSDATE;       // a date

The varchar 'some value' could be HTML and could be HTML with the values of a table concatenated, like this:

DECLARE
   l_ename VARCHAR2(100);
BEGIN
   SELECT ename INTO l_ename
   FROM emp
   WHERE empl_id = 123;

   :F101_MAINTENANCE := 'Empl name: ' || l_ename || '';
END;

(Take the space out of the style attribute - it's just there because the forum keeps style stripping attribute when displaying the post values.)

This could be in a process of page to fire when the page loads. If she has to work for all pages, it could be in an application process set on fire during the loading of each page. If it should work for all but a few pages, you can place the code in an application process on fires during each page load, but then put a condition on it so it is not fire for specific pages.

Now that the application is defined, it can be used on the pages where you need. If it is used for display only, remember to not escape special characters, or else it will just display the HTML rather than surrender. And if the value of the element of the application only needs to be set in PL/SQL, be sure to set the protection of session state so that he can "Restricted - cannot be resolved in the browser.

Hope this helps,
John

If you find this information useful, please indicate the 'useful' or 'correct' post so that others benefit. *

Tags: Database

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    /**
     * This is the default constructor (do not remove).
     */
    public UsersVOImpl () {
    }

    /**
     * executeQueryForCollection - overridden for custom java data source support.
     */
    protected void executeQueryForCollection (Object qc, Object[] params, int noUserParams) {

         List<String> usersList = new ArrayList<String>();
         usersList.add("Brad");
         usersList.add("Adam");
         usersList.add("Aaron");
         usersList.add("Fred");
         usersList.add("Charles");
         usersList.add("Charlie");
         usersList.add("Jimmy");

         Iterator usersIterator = usersList.iterator();
         setUserDataForCollection(qc, usersIterator);
         hitCount = usersList.size();
         super.executeQueryForCollection(qc, params, noUserParams);

    } // end executeQueryForCollection

    /**
     * hasNextForCollection - overridden for custom java data source support.
     */
    protected boolean hasNextForCollection (Object qc) {

         Iterator usersListIterator = (Iterator)getUserDataForCollection(qc);
         if (usersListIterator.hasNext()) {
     
             return true;

         } else {

             setFetchCompleteForCollection(qc, true);
             return false;

         } // end if

    } // end hasNextForCollection

    /**
     * createRowFromResultSet - overridden for custom java data source support.
     */
    protected ViewRowImpl createRowFromResultSet (Object qc, ResultSet resultSet) {

         Iterator usersListIterator = (Iterator)getUserDataForCollection(qc);
         String user = (String)usersListIterator.next();
         ViewRowImpl viewRowImpl = createNewRowForCollection(qc);

         try {

             populateAttributeForRow(viewRowImpl, 0, user.toString());

         } catch (Exception e) {

             LOGGER.severe("Error Initializing Data", e);
             throw new JboException(e);

         } // end try/catch

         return viewRowImpl;

    } // end createRowFromResultSet

    /**
     * getQueryHitCount - overridden for custom java data source support.
     */
    public long getQueryHitCount (ViewRowSetImpl viewRowSet) {
         return hitCount;
    } // end getQueryHitCount

    @Override
    protected void create () {

         getViewDef().setQuery(null);
         getViewDef().setSelectClause(null);
         setQuery(null);

    } // end create

    @Override
    protected void releaseUserDataForCollection (Object qc, Object rs) {

         Iterator usersListIterator = (Iterator)getUserDataForCollection(qc);
         usersListIterator = null;
         super.releaseUserDataForCollection(qc, rs);

    } // end releaseUserDataForCollection

} // end class



    <af:inputListOfValues id="userName" popupTitle="Search and Select: #{bindings.UserName.hints.label}" value="#{bindings.UserName.inputValue}"
                                              label="#{bindings.UserName.hints.label}" model="#{bindings.UserName.listOfValuesModel}" required="#{bindings.UserName.hints.mandatory}"
                                              columns="#{bindings.UserName.hints.displayWidth}" shortDesc="#{bindings.UserName.hints.tooltip}" autoSubmit="true"
                                              searchDesc="#{bindings.UserName.hints.tooltip}"                                           
                                              simple="true">
                          <f:validator binding="#{bindings.UserName.validator}"/>                       
</af:inputListOfValues>

    I found a solution to this problem. It seems that, when using a view object programmatic that has a transient as its primary key attribute, you need to override the methods in the ViewObjectImpl so that he knows how to locate the line related to the primary key when the view object records are not in the cache. That's why it would work properly sometimes, but not always. Here are the additional methods that you must override. The logic you use in the retrieveByKey would be on a view view object database object and would be different if you had a primary key consisting of multiple attributes.

    @Override
protected Row[] retrieveByKey (ViewRowSetImpl viewRowSetImpl, Key key, int i) {
    return retrieveByKey(viewRowSetImpl, null, key, i, false);
}

@Override
protected Row[] retrieveByKey (ViewRowSetImpl viewRowSetImpl, String string, Key key, int i, boolean b) {

    RowSetIterator usersRowSetIterator = this.createRowSet(null);
    Row[] userRows = usersRowSetIterator.getFilteredRows("UserId", key.getAttribute(this.getAttributeIndexOf("UserId")));
    usersRowSetIterator.closeRowSetIterator();
    return userRows;

}

@Override
protected Row[] retrieveByKey (ViewRowSetImpl viewRowSetImpl, Key key, int i, boolean b) {
    return retrieveByKey(viewRowSetImpl, null, key, i, b);
}

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