Handeling Null value using Essabse cube.

Hi Gurus,
I am new to OBIEE with Essabse cube. I have imported the cube and develop the report. I have flatened the measure. Everything is working fine. When i had a report request to have the Organisation and the Period Hierarchy along with the Measures.http://i41.tinypic.com/34s3pl2.png
As you see in the pic that the Quater and the Year total for UCR 60 Days are wrong. As there is no value for the month of March. I am not sure how i have to handel that. I am using the defult Agg External for those measures.
Please let me know where i am going wrong.
Thanks in advance.
Regards
@li

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SSRS Report date parameter values using SSAS Cube as datasource

Hey Guys,
i m building an SSRS report using SSAS cube as the data source. The report contains shared data-sets which provide the required data. below is the set up.
Sql server version : Sql server 2008R2
Report builder 3.0
I have, Report A, powered by Dataset D, running on Cube C. The dataset has 3 parameters out of which one of them is a date parameter- P1. I have it set up such that on the report there is another parameter - P2 which contains the type as Date ( to
ensure the user is exposed to a date picker), the input from this, P2 is then manipulated to required format before fed into the dataset parameter P1 (hidden). I have two questions regarding this parameter.
Currently, when the user pick's a date (P2) which has no values, the report errors out as it doesn't find that corresponding member on the cube. Can it be made such that if the member doesn't exists, a simple error message like "date not found"
pops up as opposed to report failing?
Secondly, can i manipulate the date picker (P2) exposed to the user such that the unavailable dates are grey'ed out on the date parameter (P2)?
Please let me know if there is any more info required on each of the questions.
Thanks
Srikanth

Hello Katherine,
below are the errors which pop up with the 'Constrained' function in place and without. The MDX query is what follows.
Without:
An Error has occurred during report processing. (rsProcessingAborted). The Execution Failed for the shared data set “Dataset1”.(rsDataSetExecutionError). Query Execution failed for dataset ‘DataSet1’. (rsErrorExecutingCommand). The dimension ‘[10 Sep 2014]’
was not found in the cube when the string, [10 Sep 2014], was parsed.
With Constrained flag:
An Error has occurred during report processing. (rsProcessingAborted). The Execution Failed for the shared data set “Dataset1”.(rsDataSetExecutionError). Query Execution failed for dataset ‘DataSet1’. (rsErrorExecutingCommand). Query(1,1476) The restrictions
imposed by the CONSTRAINED flag in the STRTOSET function were violated.
SELECT
NON EMPTY
[Measures].[A]
,[Measures].[B]
,[Measures].[C]
,[Measures].[D]
,[Measures].[E]
} ON COLUMNS
,NON EMPTY
[DimA].[LevelA].[LevelA].ALLMEMBERS*
[DimB].[LevelB].[LevelB].ALLMEMBERS*
[Date].[Date].[Date].ALLMEMBERS
DIMENSION PROPERTIES
MEMBER_CAPTION
,MEMBER_UNIQUE_NAME
ON ROWS
FROM
SELECT
StrToSet (@FilterA ,CONSTRAINED) ON COLUMNS
FROM
SELECT
StrToSet(@Date, CONSTRAINED) ON COLUMNS
FROM [Cube1]
WHERE
[DimC].[Level1].&[Member1]
,[DimC].[Level2].&[Member1]
,[DimC].[Level3].&[Member1]
,[DimC].[Level4].&[Member1]
Thanks
Srikanth

How to handel null values

Hi all,
I am new to JSF and I am facing a problem while validating a field the field is an accepts int value, so i am able to check if the value entered is an int or not and even it is greated than 0 or not, but when i try to check it with a blank value or null I am getting the following error --
"Exception setting property sessionTimeout of base with class com.efunds.oe.fm.dto.ProfileCompositeDTO, Bean: com.efunds.oe.fm.dto.ProfileCompositeDTO, property: sessionTimeout, newValue: null ,newValue class: null method parameter class: int, nullException setting property sessionTimeout of base with class com.efunds.oe.fm.dto.ProfileCompositeDTO, Bean: com.efunds.oe.fm.dto.ProfileCompositeDTO, property: sessionTimeout, newValue: null ,newValue class: null method parameter class: int, null"
Edited by: Ajitav on Apr 21, 2008 5:40 AM

Hi,
I used the wrapper class Integer but still i am getting the same error but if I change the type from int to String I am not getting the error, but i need to have that value as int, for some reason.

Null value in a select-option

Hi all,
I have the follow question:
can I populate a range vith a null value?
I have a field in a standard table which can be "space" or "null". But if I insert:
sign = I
option = EQ
low = space
records with "null" field aren't extracted by the select statement. So is there any way to populate:
low = null or something similar?
Best Regards,
Raffaele Frattini

If the field is of type char then you need to wrte the same in quotes woth caps
else
declare
constants : c_null type i value '0'.
then assign the same
You check the null value using INITIAL laso.

Wants to eliminate null values from mapping queue

Hi All,
How can I eliminate null values from 'display queue' of a target mapping.
Can it be done through a UDF? Kindly help.
Because of null value, it is creating issue in the mapping logic.
Thanks,
John

We can remove null values using node functions.
Check the below thread:
Re: How to remove [] form Message Mapping Display Queue
Or
Try with the below UDF:
for (int i=0; i<a.length;i++)
if (! a<i>.equals(ResultList.SUPPRESS) || ! a<i>.equals(""))
result.addValue(a<i>);
Thanks,

Using null value of item

Hi All,
I use this part-of-code in pl/sql statement in a 'where' clause in order to filter records to those that took place between some hours range:
..... and to_char(STARTDATE,'HH24:MI:SS') between NVL(:P3_HOURS_FROM,'00:00:00') and NVL(:P3_HOURS_TO,'23:59:59')
P3_HOURS_FROM & P3_HOURS_TO are combo box items with LOV (0:00,0:30,1:00 ....etc that returns 00:00:00,00:30:00,1:00:00 respectively). I use a null value which is displayed as '--:--'.
when i choose some hour range the rsults are correct. the problem is when i choose null values. there is no results to the report, probably (i guess) because it somehow translate the (null) time value to the same value (and it's obvious that between same time values there isn't any result).
so i guess i use 'null' value in an inappropriate way.
Can u tell me what do i do wrong???

Are you sure you are returning NULL and just displaying '--:--' in your LOV?
If the state of your LOV is becoming '--:--' then this does not equal null in PL/SQL land.
I presume you are also submitting after changing your LOVs?
You can check the state of your items by clicking the session state in the developers toolbar at the bottom. See what your items are being set and report back!
Ben

Oracle 11.1.0.7.0 Issue with Streams when using NULL value in a key field

Hi,
we have an issue in our replicated environment using Streams.
We have a replicated table using the following index:
UK_S01_TEXT_FORMAT_TBL01 SOGID
UK_S01_TEXT_FORMAT_TBL01 INDEX_TEXT_FORMAT_ID
UK_S01_TEXT_FORMAT_TBL01 INDEX_LANGUAGE_LABEL
UK_S01_TEXT_FORMAT_TBL01 INDEX_TEXT_FORMAT_COUNTER
UK_S01_TEXT_FORMAT_TBL01 INDEX_PROVIDER_ID
UK_S01_TEXT_FORMAT_TBL01 INDEX_TARIFF_PLAN_COSP_ID
with field INDEX_PROVIDER_ID allowing NULL values. Actually we insert empty strings in there, but as far as I understand Oracle will convert it sliently in a NULL value, which is fine to our application.
When we apply a change on that table (either update or delete) we get errors at streams level and the transaction is not propagated.
Local Transaction ID: 6.28.11170
Source Commit SCN: 25397175
Source Commit Time: Dec-03-2012 12:21:30
Error in Message: 1
Error Message: ORA-26787: The row with key ("INDEX_LANGUAGE_LABEL", "INDEX_PROVIDER_ID", "INDEX_TARIFF_PLAN_COSP_ID", "INDEX_TEXT_FORMAT_COUNTER", "INDEX_TEXT_FORMAT_ID", "SOGID") = (ITALIAN, , , 0, MIKE, 124) does not exist in table
SMS.S01_TEXT_FORMAT_TBL
ORA-01403: no data found
message: 1
TableName: S01_TEXT_FORMAT_TBL
Operation Type: DELETE
_____ Old Data _____
SOID : 1010000008
SOGID : 124
INDEX_TEXT_FORMAT_ID : MIKE
INDEX_LANGUAGE_LABEL : ITALIAN
INDEX_TEXT_FORMAT_COUNTER : 0
TEXT_FORMAT : Hai raggiunto i 100MB di traffico incluso nello scatto
APPLICA_PERIOD_CRI_ID :
INDEX_TARIFF_PLAN_COSP_ID :
INDEX_PROVIDER_ID :
If I force the set of primary keys to be only the NOT NULL fields, I can successfully apply the error, but since we may have them storing both NULL and NOT NULL values, this is not a solution.
I'm wondering why the DB on one hand converts the empty string in a NULL while inserting, but it looks the Apply process onStandby is not able to do the same when looking for the record before applying the transaction.
Thanks in advance!
Cheers,
Mike

Its showing all objects the user has permission to see- why does that need to be restricted?

Null values returned when using request.getParameters(

I have a html form which allows the user to choose options and select a file to upload. When I use method=Post I get null values returned. When I use method=Get I get my parameter values fine.. but I get an error.
"Posted content type isn't multipart/form-data"
I would like to know why I am getting null values returned when using Post. I am using the following to get the values from the name=value passed to the servlet.
String strIndustry = request.getParameter("frmIndustry");
String strCompany = request.getParameter("frmCompany");
String strCollabType = request.getParameter("frmCollaboration");
I have another form where the user can search information in a database that works just fine w/ either Get or Post
Or perhaps I am using oreilly MultipartRequest incorrectly??? but I copied it directly from another discussion.. ???
any thoughts
Thanks

taybon:
you could do it like this. in this case, you submit your form with the parameters (industry, company, collaboration), and upload your file at the same time. and in the target servlet, you can build your MultipartRequest object like this:
MultipartRequest multi = new MultipartRequest(request, temp_location, 50 * 1024);where variable temp_location stands for a temporatory diretory for file uploading.
and then you get your parameters, so you can build the directory with them. and after that, you can move your file to that directory using File.renameTo();
but as i've suggested in my previous posting, i just recommend you upload your file in a separate form. and then you can perform an oridianry doPost form submit with those parameters. or you may have problems with the file uploading. (this is just my personal experiences with Multipart).
there is one other thing i'd like to mention, file.renameTo() won't work if you need to move files to a network drive in windows. it won't work if you move files across file systems in unix.
Song xiaofei
Developer Technical Support
Sun Microsystems
http://www.sun.com/developers/support

Urgent - can't set managed bean value using a form, getting null

I have a form with a bean -- unbelievably, I can't get the values entered into the form by the user to get stored into the bean. Everything is null... I've looked at a zillion examples, posts and compared etc...yet still can't see what is missing.
Here's part of a trace :
[cc]Dec-31 01:25:02 ApplicationImpl - Created bean resourceBean successfully
[cc]Dec-31 01:25:02 ApplicationImpl - Storing resourceBean in scope request
[cc]Dec-31 01:25:02 VariableResolverImpl - resolveVariable: Resolved variable:id=null name=null
[cc]Dec-31 01:25:02 ValueBindingImpl - getValue Result:id=null name=null
[cc]Dec-31 01:25:02 ValueBindingImpl - -->Returning id=null name=null
If you have any ideas, please let me know--it seems just as I solve one JSF issue, I run into another on unexpectedly simple things.
Here's the ResourceBean.java, the bean-config.xml and my jsp.
package com.intalio.qa.tcm.view.beans;
import java.util.Map;
import javax.faces.context.FacesContext;
import javax.faces.model.SelectItem;
import org.apache.log4j.Logger;
import com.intalio.qa.exceptions.DuplicateIdException;
import com.intalio.qa.tcm.model.Resource;
import com.intalio.qa.tcm.view.builders.ResourceBuilder;
import com.intalio.qa.tcm.view.util.FacesUtils;
* Resource backing bean.
public class ResourceBean extends RootBean {
     * Class logger
     public static final Logger LOG =
          Logger.getLogger(ResourceBean.class);
* The Resource id
     private String id = null;
     * The Resource name
     private String name = null;
* Description
private String description= null;
     * the resource type id associated with the Resource
     private String resourceTypeId= null;
     private static SelectItem[] resourceTypeIds = new SelectItem[] {
          new SelectItem("External Software"),
          new SelectItem("Hardware"),
          new SelectItem("Intalio Product Software"),
          new SelectItem("Machine - Dual CPU"),
          new SelectItem("Machine - CPU Single"),
          new SelectItem("Memory - UNIX"),
          new SelectItem("Memory - Windows") };
* @return Returns the resourceTypeIds.
public SelectItem[] getResourceTypeIds() {
return resourceTypeIds;
* @param resourceTypeIds The resourceTypeIds to set.
public void setResourceTypeIds(SelectItem[] typeIds) {
resourceTypeIds = typeIds;
     * Default constructor.
     public ResourceBean() {
super();
init();
     * Initializes ResourceBean.
     * @see RootBean#init()
     protected void init() {
     /*True, but I'd strongly recommend instead using:
FacesContext fContext = FacesContext.getCurrentInstance();
Map requestParams = fContext.getExternalContext().getRequestParameterMap();
String companyId = (String) requestParams.get("companyID");
The getRequest(), getSession(), and getContext() methods of ExternalContext should only be used as a last resort.*/
     * Backing bean action to update Resource.
     * @return the navigation result
     public String updateAction() {
          LOG.info("updateAction is invoked");
          try {
               Resource Resource = ResourceBuilder.createResource(this);
               LOG.info("ResourceId = " + Resource.getId());
          //     viewServicesManager.getResourceService().updateResource(Resource);
          } catch (Exception e) {
               String msg = "Could not update Resource";
               LOG.error(msg, e);
               FacesUtils.addErrorMessage(msg + ": Internal Error.");
               return ActionResult.FAILURE;
          LOG.info("Resource with id of " + id + " was updated successfully.");
          return ActionResult.SUCCESS;
     * Backing bean action to create a new Resource.
     * @return the navigation result
     public String addAction() {
          try {
               Resource resource = ResourceBuilder.createResource(this);
LOG.info("resource created: " + resource.getName() + " with typeId = " + resource.getResourceTypeId());
               viewServicesManager.getResourceService().saveResource(resource);
          } catch (DuplicateIdException de) {
               String msg = "This id already exists";
               LOG.info(msg);
               FacesUtils.addErrorMessage(msg);
               return ActionResult.RETRY;
          } catch (Exception e) {
               String msg = "Could not save Resource";
               LOG.error(msg, e);
               FacesUtils.addErrorMessage(msg + ": Internal Error");
               return ActionResult.FAILURE;
          String msg = "Resource with id of " + id + " was created successfully.";
          LOG.info(msg);
          return ActionResult.SUCCESS;
     * Backing bean action to delete Resource.
     * @return the navigation result
     public String deleteAction() {
          LOG.info("deleteAction is invoked");
          try {
     //          Resource Resource = ResourceBuilder.createResource(this);
     //          viewServicesManager.getResourceService().deleteResource(Resource);
               //remove the ResourceList inside the cache
//               FacesUtils.resetManagedBean(BeanNames.RESOURCE_LIST_BEAN);
          } catch (Exception e) {
               String msg = "Could not delete Resource. ";
               LOG.error(msg, e);
               FacesUtils.addErrorMessage(null, msg + "Internal Error.");
               return ActionResult.FAILURE;
          String msg = "Resource with id of " + id + " was deleted successfully.";
          LOG.info(msg);
          FacesUtils.addInfoMessage(msg);
          return ActionResult.SUCCESS;
     public String getId() {
          return id;
     * Invoked by the JSF managed bean facility.
     * <p>
     * The id is from the request parameter.
     * If the id is not null, by using the id as the key,
     * the Resource bean is initialized.
     * @param newQueryId the query id from request parameter
     public void setId(String newId) {
          LOG.info("setId " + newId);
          id = newId;
     public String getName() {
          return name;
     public void setName(String newName) {
          name = newName;
     public String getDescription() {
          return description;
     public void setDescription(String newDescription) {
          description = newDescription;
     public String getResourceTypeId() {
          return resourceTypeId;
     public void setResourceTypeId(String newResourceTypeId) {
          resourceTypeId = newResourceTypeId;
     public String toString() {
          return "id=" + id + " name=" + name;
     
     <managed-bean>
          <description>
               Managed bean
          </description>
          <managed-bean-name>applicationBean</managed-bean-name>
          <managed-bean-class>
               com.intalio.qa.tcm.view.beans.ApplicationBean
          </managed-bean-class>
          <managed-bean-scope>application</managed-bean-scope>
          <managed-property>
               <property-name>viewServicesManager</property-name>
               <value>#{viewServicesManagerBean}</value>
          </managed-property>
          </managed-bean>
     <managed-bean>
          <description>
               View service manager impl for business services
          </description>
          <managed-bean-name>viewServicesManagerBean</managed-bean-name>
          <managed-bean-class>
               com.intalio.qa.tcm.view.beans.ViewServicesManagerBean</managed-bean-class>
          <managed-bean-scope>application</managed-bean-scope>
     </managed-bean>
     <managed-bean>
          <description>
               Backing bean that contains product information.
          </description>
          <managed-bean-name>resourceBean</managed-bean-name>
          <managed-bean-class>
               com.intalio.qa.tcm.view.beans.ResourceBean
          </managed-bean-class>
          <managed-bean-scope>request</managed-bean-scope>
          <managed-property>
               <property-name>viewServicesManager</property-name>
               <value>#{viewServicesManagerBean}</value>
          </managed-property>
     </managed-bean>
</faces-config>
<f:view>
     <h:form id="createResourceForm" target="dataFrame">
          <h:outputText value="#{applicationBean.dummyVariable}" rendered="true" />
          <div align="center">
          <head>
          <link href="../../css/stylesheet.css" rel="stylesheet" type="text/css">
          <FONT color="#191970" size="4" face="Arial">Resources View</FONT>
          </head>
          <table style="margin-top: 2%" width="35%" cellpadding="10">
               <div align="left">
               <FONT color="#191970" size="3" face="Arial">Update Resources </FONT>
               </div>
               <tr>
                    <td align="center" valign="top" align="center" style="" bgcolor="white" />
                    <table>
                         <tbody>
                              <tr>
                                   <td align="left" styleClass="header" width="100" />
                                   <td align="left" width="450" />
                              </tr>
                              <tr>
                                   <td align="right" width="100"><h:outputText value="Id" /></td>
                                   <td align="left" width="450"><h:inputText value="#{resourceBean.id}" id="id"/> <h:message for="id" styleClass="errorMessage" /></td>
                              </tr>
                              <tr>
                                   <td align="right" width="100"><h:outputText value="Name" /></td>
                                   <td align="left" width="450"><h:inputText value="#{resourceBean.name}" id="name" /> <h:message for="name" styleClass="errorMessage" /></td>
                              </tr>
                              <tr>
                                   
     
     <td width="30%" align="left" valign="top"><h:form id="buttonCommandsForm">
          <h:panelGroup id="buttons">
               <h:panelGrid columns="1" cellspacing="1" cellpadding="2" border="0" bgcolor="white">
                    <h:commandButton value="Add" style="height:21px; width:51px;font-size:8pt; font-color: black;" action="#{resourceBean.addAction}">
                    </h:commandButton>
                    <h:commandButton id="deleteCB" value="Delete" style="height:21px; width:51px;font-size:8pt" action="#{resourceBean.deleteAction}">
                    </h:commandButton>
                    <h:commandButton id="spaceFillerButton" style="height:21px; width:51px;font-size:8pt;background-color: #ffffff;color: #ffffff;border: 0px;">
                    </h:commandButton>
                    <h:commandButton id="saveCB" value="Save" style="height:21px; width:51px;font-size:8pt" action="#{resourceBean.saveAction}">
                    </h:commandButton>
                    <h:commandButton id="updateCB" value="Update" style="height:21px; width:51px;font-size:8pt" action="#{resourceBean.updateAction}">
                    </h:commandButton>
               </h:panelGrid>
          </h:panelGroup>
     </h:form> </td>
     </tr>
     </table>
     <HR align="center" size="2" width="60%" />
     
     </div>
</f:view>
THANKS.
-L

I solved this.
Since I was testing the action code only, I didn't define a navigation entry corresponding to the action string returned for this button:
<h:commandButton value="Add" style="height:21px; width:51px;font-size:8pt; font-color: black;" action="#{resourceBean.addAction}">
</h:commandButton>After I added a nav definition, it worked. I don't know why at this point. I suspect a key step in the lifecycle was pre-empted...someone else can probably explain why. If I get a chance to research it after I'm done with my project, I'll update this post.
Thanks.
-L

I am gettng Null value for file when i am using a UDF as this

String FName;
DynamicConfiguration Conf = (DynamicConfiguration) container.getTransformationParameters(). get(StreamTransformationConstants.DYNAMIC_CONFIGURATION);
DynamicConfigurationKey key = DynamicConfigurationKey.create("http:/"+"/sap.com/xi/XI/System/File", "FileName");
FName = Conf.get (key);
if (FName == null)
return "null";
else
return FName
and my error is
Attempt to process file failed with com.sap.aii.adapter.file.configuration.DynamicConfigurationException: The Adapter Message Property 'FileName' was configured as mandatory element, but there is no 'DynamicConfiguration' element in the XI Message headplease any on there to help me
thanking you
sridahr

Hi,
Did u selected the option filename from the Adapter message specific atribute of file adapter.
When u run the whole scneario that time this will work if u run the scneario using test message tab of message mapping it will give null value only.
THe AMSA will work when u test it end to end.
check it out.
Advance parameter in file adapter dynamic file name
Problem in dynamic file name in File reciever adapater
/people/michal.krawczyk2/blog/2005/11/10/xi-the-same-filename-from-a-sender-to-a-receiver-file-adapter--sp14
/people/william.li/blog/2006/04/18/dynamic-configuration-of-some-communication-channel-parameters-using-message-mapping
chirag

What is the use of setting null values to Objects?

What is the use of setting null values to Objects?
regards,
namanc

It's more of a safety trap within java to handle the "programmers are still humans" exception.
String myname;
// print what???? Forgot to initialize the name!
System.out.println(myname);Java will complain about myname not being initialized. It won't when you do this:
String myname = null;
// allright, your name is null
System.out.println(myname);In the second case you are showing to java that you know what you are doing.

Using "Where" operator sometimes generates a Null Value

Hello,
I am struggling with the following problem:
Sometimes when I use the "Where" operator, I get a Null value that I can't get rid of. For example:
    [Fiscal Quarter] Where [Fiscal Quarter] = "2009 Q3"
    Returns:    "2009 Q3" and [Null]
    Note: The object [Fiscal Quarter] is a dimension.
Conversely, when I use this formula:
    [Revenue] Where [Fiscal Quarter] = "2009 Q3"
    There is just one result, e.g., $100,000, as expected.
Is there something I can add to the first formula so that I do not get the Null response?
thanks so much,
Helen Gonzalez

Hello, Ekta!
in response to your help:
Q: Is the query that is the value of the Fiscal Dimension dependent upon some other condition?
A: No, the dimension "[Fiscal Quarter]" is not dependent on anything else.
Q: Have you tried breaking the formula to smaller chunks?
Have you tried using other Conditional Operator as "Nested IF".
A: No, I haven't tried that. Any suggestions? It sounds reasonable.
Thanks,
Helen

How to transfer database table contain null values, primary key, and foreign key to the another database in same server. using INSERT method.

how to transfer database table contain null values, primary key, and foreign key to the another database in same server. using INSERT method. thanks

INSERT targetdb.dbo.tbl (col1, col2, col3, ...)
SELECT col1, col2, col3, ...
FROM sourcedb.dbo.tbl
Or what is your question really about? Since you talke about foreign keys etc, I suspect that you want to transfer the entire table definition, but you cannot do that with an INSERT statement.
Erland Sommarskog, SQL Server MVP, [email protected]

To make a field null again using web services after inserting value.

Hi All,
I just wanted to ask you there is an Any Occ. Date which is a date field at a particular object.By default the value of this field is having null value.After filling the field if I further want to make it null value,it does not allow the field to make it blank once again by web services.
Quick response will be highly appreciated.
Thanks in advance.

what i understood from you requirement is that, if tax_type is country, you want to skip state field and enter value for tax_rate. in case tax_type is state, you want to enter state also. so, as its a multi-record block, once you do set_item_property(enable/disable), it enables and disables state field for all the records.
if i am correct, what you can do as workaround is use SET_ITEM_INSTANCE_PROPERTY rather than SET_ITEM_PROPERTY and set the INSERT_ALLOWED and UPDATE_ALLOWED properties to TRUE & FALSE, as you cannot set ENABLE property using that. though the field will be enabled, but user will not be able to key-in any value.
hope it helps.

Using Convert to handle NULL values for empty Strings ""

After having had the problem with null values not being returned as nulls and reading some suggestion solution I added a converter to my application.
<converter>
    <converter-id>NullStringConverter</converter-id>
    <converter-for-class>java.lang.String</converter-for-class>
    <converter-class>com.j2anywhere.addressbookserver.web.NullStringConverter</converter-class>
</converter>
...I then implemented it as follows:
public String getAsString(FacesContext context, UIComponent component, Object object)
    System.out.println("Converting to String : "+object);
    if (object == null)
      System.out.println("READING null");
      return "NULL";
    else
      if (((String)object).equals(""))
        System.out.println("READING null (Second Check)");
        return null;
      else
        return object.toString();
public Object getAsObject(FacesContext context, UIComponent component, String value)
    System.out.println("Converting to Object: "+value+"-"+value.trim().length());
    if (value.trim().length()==0 || value.equals("NULL"))
      System.out.println("WRITING null");
      return null;
    else
      return value.toUpperCase();
...I can see that it is converting my values, however the object to which the inputText fields are bound are still set to empty strings ""
<h:inputText size="50" value="#{addressBookController.contactDetails.information}" converter="NullStringConverter"/>Also when reading the object values any nulls are already converted to empty strings before ariving at the converter. It seems that there is a default converter handling string values.
How can I resolve this problem as set nulls when the input value is an empty string other then checking every string in my class individually. I would really hate to pollute my object model with empty string tests.
Thanks in advance
Edited by: j2anywhere.com on Oct 19, 2008 9:06 AM

I changed my converter as suggested :
public Object getAsObject(FacesContext context, UIComponent component, String value)
    if (value == null || value.trim().length() == 0)
      if (component instanceof EditableValueHolder)
        System.out.println("SUBMITTED VALUE SET TO NULL");
        ((EditableValueHolder) component).setSubmittedValue(null);
      else
        System.out.println("COMPONENT :"+component.getClass().getName());
      System.out.println("Converting to Object: " + value + "< to " + null);
      return null;
    System.out.println("Converting to Object: " + value + "< to " + value);
    return value;
}which produces the following output :
SUBMITTED VALUE SET TO NULL
Converting to Object: < to null
Info : The INFO line however comes from my controller object where I print out the set value :
package com.simple;
import java.util.ArrayList;
import java.util.List;
public class Controller
private String information;
/** Creates a new instance of Controller */
public Controller()
    System.out.println("Createing Controller");
    information = "Constructed";
public String process()
    System.out.println("Info : "+getInformation());
    return "processed";
public String reset()
    setInformation("Re-Constructed");
    System.out.println("Info : "+getInformation());
    return "processed";
public String setNull()
    setInformation(null);
    System.out.println("Info : "+getInformation());
    return "processed";
public String getInformation()
    return information;
public void setInformation(String information)
    this.information = information;
}I also changes my JSP / JSF page a little. Here is the updated version
<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@taglib prefix="f" uri="http://java.sun.com/jsf/core"%>
<%@taglib prefix="h" uri="http://java.sun.com/jsf/html"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<%--
    This file is an entry point for JavaServer Faces application.
--%>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>JSP Page</title>
</head>
<body>
    <f:view>
      <h:form>
        <h:inputText id="value" value="#{Controller.information}"/>
        <hr/>
        <h:commandLink action="#{Controller.process}">
          <h:outputText id="clicker" value="Process"/>
        </h:commandLink>
        <hr/>
        <h:commandLink action="#{Controller.reset}">
          <h:outputText id="reset" value="Reset"/>
        </h:commandLink>
        <hr/>
        <h:commandLink action="#{Controller.setNull}">
          <h:outputText id="setNull" value="Set Null"/>
        </h:commandLink>
      </h:form>
    </f:view>
</body>
</html>The converter is declared for the String class in the faces configuration file. From the log message is appears to be invoked, however the object is not set to null.
I tested this with JSF 1.2_04-b20-p03 as well as 1.2_09-b02-FCS.
any other suggestions what could be causing this.

Handeling Null value using Essabse cube.

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