Attribute Pointer is null

hi experts!
I have a requirement to use SingleMarkableCell in a Table. It is implemented without any error. But to fulfill the requirement, Attribute Pointer must be accessed in each and every server round-trip. Pointer value printed in wdModifyView is NULL, but there is proper value if called in any Action.
What I need is on each click on Table Cell, the corresponding cell value or x, y co-ordinates should be printed.
Please help me to implement this approach.
Thanks in anticipation,
Nikhil

Solved using Calculated Attribute. I was waiting for a solution which reduces calculated attributes. My requirement has more than 20 calculated attribute. If there is a way to do it except making these much attribute as calculated, please let me know.
Thank you.

Similar Messages

Need Help :: Current row attribute value returning null

Hi Frds,
I am facing the problem that
Current row attribute value returning null............ even though value is there..... plz.. he
This is the code in PFR
OAApplicationModule am = pageContext.getApplicationModule(webBean);
if (pageContext.getParameter("queryBtn")!= null)
    String pPersonId = pageContext.getParameter("ctrlPersonId");
     String rowReference = pageContext.getParameter(EVENT_SOURCE_ROW_REFERENCE);
     OptionsVORowImpl curRow = (     OptionsVORowImpl) am.findRowByRef(rowReference);
    String dtlsItem = (String)curRow.getFlexValue();   /* this is returning null value */
/* here creating the hashmap and calling the page with the hashmap*/
Thanks & Regards,
jaya
Message was edited by: 9d452cf7-d17f-4d1e-8e0e-b22539ea8810

Hi Jaya,
You want to catch Flexfield values?
Try below code for catch value.
OAApplicationModule am = pageContext.getApplicationModule(webBean);
if (pageContext.getParameter("queryBtn")!= null)
OADescriptiveFlexBean dfb = (OADescriptiveFlexBean)webBean.findChildRecursive("flexDFF"); //get the DFF bean
OAWebBean dffbean = (OAWebBean)dfb.findChildRecursive("flexDFF0"); //get the field that applies to the attribute1 column that is being rendered
OAMessageStyledTextBean Stylebean = (OAMessageStyledTextBean)dffbean;
String dtlsItem = (String)Stylebean.getText(pageContext);
/* here creating the hashmap and calling the page with the hashmap*/
Thanks,
Dilip

How to show an Default Image in case of Image src attribute is pointing to null

Hi ,
I am displaying Images on to DataGrid by reading an XML File .
This works fine if the Image src is prsent.
Now my question is that sometimes the Image src might be null , then in which case i need to
display some default Image .
<mx:HBox id="hBox">
<mx:Image source="{rep.currentItem.@src}"/>
</mx:HBox>
<images>
<image src="images/One.png" />
<image src="images/Two.png"/>
<image src=""/>
</images>
Please tell me as how to show an Default Image in case of Image src attribute is null .
Please share your ideas on this .
Thanks in advance .

bind the image source to a function
<mx:Image source="{getImage()}"/>
then write a function to detect if an image is present
private function getImage():String
     if ( rep.currentItem.@src == null)
          return "default.png";
     else
          return rep.currentItem.@src;

Setting an attribute back to null

Hi All.
During provisioning to certain resource, I set an attribute to some value (It gets set properly), Now I want to set it back to null(empty string). It is not setting back to null and still displays the old value
<set name='user.global.attr1'>
<null/> or <s></s>
</set>
Is there any way to set the attribute value back to null or clear that particular attribute
Thanks,

Any update on this, Please reply

Command Link attribute is returning null.

Hi all,
I have a pojo iterator with me. I have to generate command link for a attribute from that iterator. I generated them using a ForEach loop as below and put address of employee as an attribute of that tag. Now in the Action Listener i am fetching this attribute using actionEvent as below : -
    public void displayUploadAttachment(ActionEvent actionEvent) {
       System.out.println("Content Id:- "+actionEvent.getComponent().getAttributes().get("adr"));
My action Listener returns it as NULL. I am not getting why it is doing this.
<af:forEach items="#{bindings.myEmpIterator.children}"
                              var="emp">
                    <af:commandLink text="#{emp.firstName}" partialSubmit="true" id="cl22"
                                    actionListener="#{viewScope.empBean.displayEmpAddress}">
                    <f:attribute name="adr" value="#{emp.address}"/>
                    </af:commandLink>
                  </af:forEach>
J dev version
Studio Edition Version 11.1.1.6.0

Hi,
Couple of things to check.
1. Check if the address is really null (instead of #{emp.firstName} as text for the commandLink, try with #{emp.address}).
2. Instead of
System.out.println("Content Id:- "+actionEvent.getComponent().getAttributes().get("adr"));
try
System.out.println("Content Id:- "+((RichCommandLink)actionEvent.getSource()).getAttributes().get("adr"));
-Arun

Transient vo attribute binding returning null

i have a editable form with multiple input text components which i created by dropping a collection on page.
now i want to add more fields which are transient and read only.
i added two transient attributes in VO with Updatable to Never and queryable to true, i dont have the logic yet so the expression is blank. i created a label using control hint.
now i created two attribute value bindings for these new fields.
i created two input text fields and used these bindings for their label , value properties. i set readonly and disabled both true for these input text fields.
if i hard code the label and value properties of input text it works, if i use binding expressions for them, it throws some error saying could not find binding for transient fileds or thery returned null.
what stpes should i use to add a transient field to a editable form.
jdev 11.1.1.5.0

Put the transient attributes into the underlying eo, refresh the vo and add the attributes from the eo to the vo. Now they should work just as any other attribute.
Timo

Security Attributes with Multiple/NULL values

I have a couple of situations where I can't seem to get the authorization component working as I need it to work for a database source.
1) In the first case, I have two attributes set for "grant security attributes" in the data source, one of which has a single attribute value, and the other which has multiple values, e.g.
I want to set "grant security attributes" to something like "client_id role_id" where for my dataset, client_id will always be a single numeric value, but I might have multiple role_ids that can view this record. How do I specify in my data source query those multiple attribute values? I tried separating them with spaces, e.g.
SELECT ...
'A B' role_id
FROM
where "A" and "B" represent unique values (looking to match A OR B). I also tried delimiting them with commas, but neither spaces nor commas seems to work consistently.
On the authorization end, using oracle.search.plugin.security.auth.db.DBAuthManager as the authorization plug-in, I have the authorization query set as
SELECT client_id, security_lvl as role_id from test_user_id where user_id = ?
Each user may have more than one role, so in the above query, security_lvl could be something like "B C"; I'm assuming from the documentation that the delimiter for attribute values in this case should be a space.
The crawler logs make it appear that everything is getting indexed, so I suspect the issue is on the authorization front.
2) In the second case, one of my security attributes for the data source may be NULL, meaning that there's no particular authorization restriction on a particular record, so to use the same example as in #1,
role_id might be NULL for some records, in which case, I want those records returned in the search if the client_id matches, but I can't get the records with the NULL role_id to be returned at all. Again, the crawler logs indicate that everything is being indexed, and I'm not sure if there's a log where I can further troubleshooting authorization issues.
Any guidance would be appreciated.
Thanks

1) The security attributes are OR'd together so if the user has any ONE of the attributes (either client ID or role ID), the document can be seen by the user. What I would try is to create a view to call rather than directly against the table. The view can then leverage a PL/SQL function and encapsulate the logic behind the security tokens to return.
So the view would look like this...
CREATE OR REPLACE VIEW USER_SECURITY_V AS
SELECT
USER_T.ID,
MY_SECURITY_FUNCTION(USER_T.ID) AS AUTH_ID
FROM
USER_T
The PL/SQL function would look something like this...
CREATE OR REPLACE FUNCTION MY_SECURITY_FUNCTION(USER_ID NUMBER) RETURN VARCHAR2 IS
-- Do whatever you need to do to build a single space-deliminted list of tokens for both Client and Role ID "CLIENTID4 ROLEID5 ROLEID9" then return
END;
The data source authorization query then would look like this...
SELECT AUTH_ID FROM USER_SECURITY_V A WHERE A.ID = ?
Using a PL/SQL Function to control the tokens gives you the flexibility of modifying security without having to touch the data source directly
2) I don't quite follow. If any ONE of the tokens match, the document is returned. If the role ID is null, you might try stamping each document a "master" security token indicating it's open to everyone such as "ALL". Then in the PL/SQL Function, return "ALL" in front of the actual values.
The crawler logs will only tell you what is indexed at crawl time, not how searching is actually working. Try checking the server logs. These should be under something like oracle/ses/seshome/search/base_domain/servers/AdminServer/logs
Hope this helps!

Parent path point to [null] object after effects

is it possible to parent an object or null object to a single point on a shape path? Beam is closest thing I can find but this feels hacky to me, and would be nice to have a fill too.

No way. Even expressions cannot access mask/ shape layer paths.
Mylenium

How to force simple tags and null attributes to appear when using SQL/XML?

Hello everybody:
I'm developing a non-schema based XMLType view.
When the XML document is generated, i noticed two things I need to manage in order to achieve the desired result:
1. Oracle generates a <tag></tag> pair for each XMLELEMENT defined; in my case, some tags need to appear as <tag/>... how do I do? Is it possible when using schema based XMLType views? Is it possible while using a non-schema approach?
2. When using XMLATTRIBUTE('' AS "attribute") or XMLATTRIBUTE(NULL AS "attribute"), no one attribute with label "attribute" and null value appears at the output; how do I force to Oracle DB to render those attributes which are with no values (needed to render those attributes as another parsing code will await for all the items)?
3. Some tip about how to route the output to an XML text disk file will be appreciated.
Thanks in advance.
Edited by: Enyix on 26/02/2012 11:21 PM
Edited by: Enyix on 26/02/2012 11:22 PM

Hello odie_63, thanks for your reply:
Reasons why needed single tags are these two next: Needed to generate a single XML file from 50,000,000 rows, where the XML ouput matches not only row data but another default values for another elements and attributes (not from database but using strings and types with default values); by using start and end tag, the generated file is as much twice bigger than using single tags; second, needed a very precise presentation for all the document.
For generating that document, currently focus is based on using a batch process relying on Spring Batch with using a single JDBC query where a join happens between two tables. From my point of view, that approach uses: database resources, network resources, disk resources, and processing resources, including the price of making the join, sending to network, creating objects, validating, and making the file (Expending too much time generating that XML file). That processs currently is in development.
I think possibly another approach is delegating the complete generation of that file to the database using its XML capabilities. My current approach following your recomendations is to generate a clob where I will put all the XML and putting it into a table. It leads me to another issues: Considering limitations on memory, processing and disk space, needed to append a single row-as-xml into the clob as soon as possible, and putting the clob inside the field as soon as possible, or putting the clob inside the field, and appending into it as the data is generated; so How do I manage the process in order to achieve that goals?. Seen these issues aren't related to my original question, so I'll open a new post. Any help will be apreciated.
Thanks again in advance.

Null pointer with array

Please help! I'm new to Java and have done the following:
Created an array to hold 100 records.
Created 5 records for the array (index 0, 1, 2, 3, 4)
Now I'm trying to use a for loop to have a write output of the array values and I'm getting a NULL pointer exception.
Any ideas???

When an array is initialized, all its values initially point to null (except for primitives, which point to their respective 0's).Try printing out the index of the value before you print the value - it should fail at index 5. If you want to end the for-loop at the first null entry, use
for(int index = 0 ; index < array.length && array[index] != null ; index++)
   array[index].doStuff();
}if you only want to print out non-null values, and skip all the rest, instead use
for(int index = 0 ; index < array.length; index++)
   if(array[index] != null )
      array[index].doStuff();
}

Linq to XML query where clause excluding null attribute in child

I'm quite new to linq/XML and although I'm making progress I'm stuck at combining two levels of elements in a where clause. The XML is something like this
<employees type="cashier">
<employee hired="Jun 1 2000" fired="Jun 1 2013">
<stats name="jane doe">
... other stuff ...
<stats />
<employee/> <employee hired="Jun 1 2000">
        <stats name="john doe">
            ... other stuff ...
        <stats />
    <employee/>
<employees/>
I'm trying to retrieve all employees of type "cashier" that haven't been fired.
I tried this
IEnumerable<XElement> CashierElements = from el in xDoc.Root.Descendants("employees")
where (string)el.Attribute("type")=="cashier"
&& (string)el.Element("stats").Attribute("fired") != null
select el;
But that returns entries where the fired attribute doesn't exist. I'm not even sure I can reference the stats element attribute in this way but VS2013 doesn't complain about it.
I have managed to muddle past by using two linq selections, the one above without the stats comparison followed by a second on the results that checks for "fired" being null.
How would I achieve this with one select statement?
Thanks!

Hi,
1) Your XML contains the attribute "fired" on "employee" element. Your query search this attribute on the "stats" element.
2) you say "that haven't been fired" by you search an attribute fired != null ? I'm not sure about your logic.
If I understand your request, your LINQ Query is more than :
IEnumerable<XElement> CashierElements =
// Loop on <employees>
from emps in xDoc.Root.Descendants("employees")
// only 'cashier' type
where (string)emps.Attribute("type") == "cashier"
// Loop on <employee> in filtered <employees>
from emp in emps.Elements("employee")
// only the employee not fired
where emp.Attribute("fired") == null
// select the employee element
select emp;
Regards
Yan Grenier
Merci de bien vouloir "Marquer comme réponse", les réponses qui ont répondues à votre question, et de noter les réponses que vous avez trouvé utiles.

Pros and Cons - Representation of boolean attributes

A coworker and I are discussing the different ways to represent boolean attributes in a new schema.
So far, there are three options we came up with and were wondering what the pros, cons, and opinions were. There are many attributes that work like the following examples:
Addresses - A person may have multiple addresses
Shipping Address - One and only one address is the shipping address for a person
1) shipping is a boolean attrbiute of the Addresses table represented by a char(3) datatype than can be "yes" and "no"
2) A seperate shipping address table contains a primary key made up of the primary key from the People table and the primary key from the Addresses table.
3) One intermediate table is made for all the boolean value associated with the address entity, creating a many to many relationship between Addresses and "boolean attributes".
I prefer 1, he prefers 2 and suggested 3.
I like 1, because
It enforces the relationship that a person can only have one shipping address, since the key is composed of a person and an address, and is unique.
It is also easy to add too or drop when clients change their minds as much as they do. I can also associate extra data with it if the users decide to start asking for more (they often do)
I dislike 2, because I have to actually compare text to get a boolean value. It also leaves room for people to make typos or put something besides yes or no. I don't mind 2 of an entity happens to have bunches of boolean attributes as I don't want to create 25 seperate tables...I guees it depends on what the data is.
We've got attributes that work like this all over the place. Shipping addresses, billing addresses, primary phone number, primary email address. Courses that are 'advanced" courses, active vs non active, etc.
I see his argument for long queries or too many tables, if an entity has many boolean attributes and I start making tables for all of them, but when there are 1-4 I think it makes more sense to make a seperate table for groupings of things. I see it more as a subset than an attribute...Give me all the addresses that are shipping addresses or give me all the courses that are not in the active course table.
What are your thoughts?
Edited by: brekehan on Apr 16, 2010 11:12 AM

user12999515 wrote:
This is the coworker trying to clarify the question. There is a distinct possibility that an entity represented in a database may have Boolean attributes. So the question is what is the best way to represent them. The first answer is to make them a column of a table. But let's think about it. What if we are going to search by these attributes.
A solution is to have a separate table for each Boolean attribute pointing to the primary key of the addresses table. In this case shipping address and billing address.Sure you could do that, but then you introduce a few complexities, and i'm not sure i see where the tangible benefit is. With the example provided by your colleague you would have.
Entity = address (pk_value, <other_columns>)
     where pk_value = person_id, some incremented ID for address
Entity = shipping address (pk_value)
     where pk_value = person_idSo this takes care of the business rule that a person can have at most 1 shipping address (that's good), but when you want to know ALL the address information for a given person on file you need to query
select
   a.*,
   case when sa.person_id is null then 'NO' else 'YES' end as shipping_address
from addresses a, shipping_address sa
where a.person_id = :person_id
and a.person_id = sa.person_id (+)As opposed to
Entity = address (pk_value, shipping_address, <other_columns>)
     where pk_value = person_id, some incremented ID for address
     shipping_address = 0 or 1
     with a check constraint on shipping_address ( in (0,1) )
     with a unique index to enforce the rule that a person can have at most one shipping address .. which would look something like
drop table addresses;
create table addresses
     person_id number,
     address_id number,
     shipping_address     number(1),
     constraint addresses_pk primary key (person_id, address_id),
     constraint addresses_c1 check (shipping_address in (0,1))
create unique index addresses_u01 on addresses (case when shipping_address = 1 then person_id else null end);
--shows the unique index enforcing the business rule that 1person can have at most 1 shipping address
insert into addresses values (1, 1, 0);
insert into addresses values (1, 2, 0);
insert into addresses values (1, 3, 1);
--take a break, add someone else's info
insert into addresses values (2, 2, 0);
insert into addresses values (2, 3, 1);
--back to person 1, add another shipping address (which will raise an error because of our index)
insert into addresses values (1, 4, 1);And when querying this table we have a simple
select
   a.*
from addresses a
where a.person_id = :person_id
--if you need to, decode(shipping_address, 0, 'NO', 'YES')When you start getting into adding tables to represent a 1 – 1 relationship, you're really adding overhead. In this case, instead of adding a single column (with a number(1) datatype) you'll be adding a table with a number(x) where x is the length of your person_id. So the storage goes up (i won't argue this is a big deal as we're in the year 2010 :) however when you need to query you now have 2 tables to grab data from which means more IO (you have data blocks for the address table, and data blocks for the shipping_address table).
Unless you have a situation like the following
http://www.oracle.com/technology/oramag/oracle/09-mar/o29asktom.html “Wide Load Storage” i would recommend staying away from modelling 1 – 1 relationships.

Null value in List Binding (enumeration mode)

Hi,
how can I declare a NULL value in a List binding with enumeration mode?
A user should be able to select an empty entry in a combobox to update an attribute with a null value.
I'm using JDev9052 and JClient.
Any hints?
Thanks,
Markus

Adding '-1' in JComboBox (addItem(new Integer(-1))) or in the control binding does not change the picture. Sorry.
While play with different List bindings I have discovered that a Button LOV Binding works when using a "select * UNION select null from dual" view object. It does not work with a Combobox LOV binding. Why?
Still, my problem List binding in enumeration mode (with Combobox) is unsolved. any hints or samples?
My current combobox binding:
<DCControl
id="Job"
DefClass="oracle.jbo.uicli.jui.JUComboBoxDef"
SubType="DCComboBox"
BindingClass="oracle.jbo.uicli.jui.JUComboBoxBinding"
IterBinding="EmpView1Iterator"
ApplyValidation="false"
isDynamic="false"
ListOperMode="0"
StaticList="true"
Editable="false" >
<AttrNames>
<Item Value="Job" />
</AttrNames>
<ValueList>
<Item Value="ANALYST" />
<Item Value="CLERK" />
<Item Value="MANAGER" />
<Item Value="PRESIDENT" />
<Item Value="SALESMAN" />
<Item Value="-1" />
</ValueList>
</DCControl>
My current Button LOV binding:
<DCControl
id="Job2"
DefClass="oracle.jbo.uicli.jui.JULovButtonDef"
SubType="DCLovButton"
BindingClass="oracle.jbo.uicli.jui.JULovButtonBinding"
IterBinding="EmpView1Iterator"
DTClass="oracle.adf.dt.objects.JUDTCtrlListLOV"
ApplyValidation="false"
isDynamic="false"
ListOperMode="0"
ListIter="JobListView1Iterator" >
<AttrNames>
<Item Value="Job" />
</AttrNames>
<ListAttrNames>
<Item Value="Job" />
</ListAttrNames>
<ListDisplayAttrNames>
<Item Value="Job" />
</ListDisplayAttrNames>
</DCControl>

POSTING TO JSP FORMS GIVES NULL OBJECT RATHER THAN EMPTY STRING

This post is for Dan Norris of DOE. He brought this up in a submitted tar, but it is addressed by the PDK community here.
We arehaving problems using the standard HTTPServletRequest getParameter
methodinside of the portal.
The standard for this method is as follows:
*If you usethis method to read from a text field without any text in it, you
get an empty string. ( "" )
*If you use it to read from a text field with text in it youwould get the
corresponding text.
*If you try to read from a field that doesn'texist then and only then would
you get a Null object.
On our portal server itis behaving differently inside of portlets.
* If you use this method to readfrom a text field without any text in it, you
get a Null Object
* If you use itto read from a text field with text in it you would get the
correspondingtext.
* If you try to read from a field that doesn't exist you also would youget a
Null object.
Also, on the same server If you access a simple JSP directlywithout the it
being a portlet, it behaves as defined by standard Javadocumentation.
Test case:
Create test.jsp with these contents:
========start test.jsp
<%@pageimport = "oracle.portal.provider.v1.*,
oracle.portal.provider.v1.http.*"%>
Form to test submission of empty form field.<br>
Text Field Value ="<%=request.getParameter("testField")%>"
<form name="test" action="<%=
HttpPortletRendererUtil.htmlFormActionLink(request,PortletRendererUtil.PAGE_LINK
) %>">
<%=
HttpPortletRendererUtil.htmlFormHiddenFields(request,PortletRendererUtil.PAGE_LI
NK) %>
<INPUT type="text" name="testField">
<INPUT type="Submit"name="Submit">
</form>
========end test.jsp
=================startprovider.xml
<provider class="oracle.portal.provider.v1.http.DefaultProvider"
session="true">
<portlet class="oracle.portal.provider.v1.http.DefaultPortlet" version="1" >
<id>1</id>
<name>TestPortlet</name>
<title>Test</title>
<description>Test</description>
<timeout>100</timeout>
<timeoutMsg>Test Portlet timed out.</timeoutMsg>
<showEdit>false</showEdit>
<showEditDefault>false</showEditDefault>
<showPreview>false</showPreview>
<showDetails>false</showDetails>
<hasHelp>false</hasHelp>
<hasAbout>false</hasAbout>
<acceptContentTypes>
<item>text/html</item>
</acceptContentTypes>
<portletRenderer class="oracle.portal.provider.v1.http.PageRenderer" >
<appPath>/</appPath>
<appRoot>/u01/app/oracle/product/ias1021/Apache/Apache/htdocs</appRoot>
<renderContainer>false</renderContainer>
<showPage>test.jsp</showPage>
<pageParameterName>next_page</pageParameterName >
</portletRenderer>
</portlet>
</provider>
=================end provider.xml
After you have theprovider added to the portal, login to the portal as
portal30 and go toAdminister Tab->Display Portlet Repository and display the
portlet.
1.Enter "test" in the text field and submit.
2. Returns Text Field Value ="test"
3. Submit form leaving the text field empty.
4. Returns Text FieldValue = "null"
Submitting the form with the text field empty should returnvalue of "", and
not "null".

fyi in case anyone else ever wants to know:
I found it... the details I was looking for were in the OC4J 9.0.2 Release Notes:
Display of null values in JSP.
In Oracle9iAS, a null value printed from a JSP page displays, by default, as
the string "null." To display nothing instead, set the attribute jsp-print-null
to false in the <web-app> element of
global-web-app.xml or orion-web.xml.

Global & waveset attributes

Hi
I have created a form with fields. All the fields are in global namespace as i need to pass the values to all the resources.
The problem is that the values are populated in my resources, but in Identity manager's user view, the values as well the attribute types are null.
I have not added these field names in the extended attributes list.
Can anyone pls help me as to why the values are not populated in Identity Manager's user view? Should these global variables be specified as extended attributes ?
Thanks in advance.

IDM does not store a copy of the resource attributes in the repository. All values you set in the global namespace will be pushed to all resources but not stored in the repo.
You can only store 5 values in the extended attributes (there are only 5 spots available) If you want to store some of the global variables in the repository you will have to use the extended attributes for that and populate them with data in the form.
WilfredS

Attribute Pointer is null

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