Is it possible to pass a null value to a method?

is it possible to pass a null value to a method?
like this
public String getParameterXX(String testvalue)
String strX = "whatever";
if(testvalue!=null)
strX = strX + " man " ;
Is this possible ?
is this legal
String i = getParameterXX(null);

I also ran a similar code using null in a method, it just considers null as another string and concatenates it so
public String getParameterXX(String testvalue)
String strX = testvalue+"whatever";
return strX;
public static void main(String [] args)
Test tt = new Test();
String i = tt.getParameterXX(null);
System.out.println(i);
Gives me "nullwhatever"

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Pass a null value to a JDBC stored procedure call?

pass a null value to a JDBC stored procedure call? Is this even possible? My DBA gave me a procedure to call that sometimes requires a null value. I don't think this is even possible.

do you mind tell me how to resolve your problem?i using the setnull method,but it doesn't work.

Is it possible to pass the property value dynamically to composite.xml

Hi,
Is it possible to pass the property value dynamically to composite.xml from bpel?
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Also, when I included the following code inside .bpel
invoke name="InvokeListFileFTPAdapter-ListFiles"
partnerLink="ListFilesFTPAdapter"
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<bpelx:toProperties>
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variable="AuditVariable"/>
</bpelx:toProperties>
</invoke>
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Hi,
You can use bpel preferences for that:
1.
In the composite add a property, for ex:
<component name="test">
<implementation.bpel src="test.bpel"/>
<property name="bpel.preference.exam">abc</property>
</component>
2.
To get the value within your bpel process use: ora:getPreference(exam)
3.
Then, you can change the value in the EM:
Under Farm_soa_domain>weblogic domain>your_domain>soa_server1
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Is it possible to pass table type values as input parameter for con prg?

Hi All,
Could you please confirm that is it possible to pass table type value as input to concurrent program?
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Thanks,

Hi student;
Please check (http://apps2fusion.com/at/45-as/241-enablingdisabling-concurrent-program-parameters)
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Helios

How do I pass a null value to the reportDocument?

I'm using CR 2008 and VS 2005.
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See if this does the trick:
Dim crParameterDiscreteValue As New CrystalDecisions.Shared.ParameterDiscreteValue()
crParameterDiscreteValue.Value = Nothing
C# would look something like;
CrystalDecisions.Shared.ParameterDiscreteValue crParameterDiscreteValue;
crParameterDiscreteValue = new CrystalDecisions.Shared.ParameterDiscreteValue();
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Ludek
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Is it possible to pass a null Input Oracle parameter to a stored procedure

I have a stored procedure that take 3 inputs and gives 1 output.I'm using Oracle parameter to add all 3 input parameters as follows :
OracleParameter inobj = cmd.Parameters.Add("wid", OracleDbType.Int32,50);
inobj.Direction = ParameterDirection.Input;
inobj.Value = _employeeID;
and added the output parameter as follows:
OracleParameter outobj = _cmd.Parameters.Add("w_first", OracleDbType.Varchar2, 50);
outobj.Direction = ParameterDirection.Output;
On the UI end , the user has a choice to provide 1 input or all inputs or any 2 inputs based on his interest. Stored Proc looks as follows:
SP( inp1 in parameter, inp2 in parameter, inp3 in parameter, output1 out parameter)
If i just get 1 input or 2 inputs from the user, is it fine to query the data for output using same stored procedure or should i have individual stored procedures for each scenario(combination of different inputs)?
Will i get any pl/sql error that says invalid number of arguements?

This means if i have 1 input , i need to have a different method to pass 1 parameter value and other input parameters as null and if there are 2 inputs will need different method to handle. So 5 different methods all together?
What if the stored procedure is as follows ,will its make things easier so that only one method is used for all scenarios?(optional parameters is set default value as null in the stored proc)
Create or Replace
Procedure GetFoo
(cur_z OUT sys_refcursor,
pub_date IN varchar2,
fname IN varchar2 default null,
lname IN varchar2 default null,
phone IN varchar2 default null
IS
BEGIN
---get some data
END;
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BODI: Is it possible to pass parameter/variable value out of a data flow?

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Also thanks Raghavendra, Asha,
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NULL Value in CLOB

Hi,
I am calling a stored procedure with CLOB parameter and I need to pass NULL value to CLOB paramter through ADO in VC++.
My problem is when I send CLOB value as NULL a single Digit Binary value is inserted.I am using SAFEARRAY and AppendChunk mechanism to create CommandParameters for Storedprocedure.
Any suggestion where i am going wrong...
SDG

I've never worked with CLOB's before. But, I've put a great deal of effort into trying to pass a null value to Oracle from ADO. Finally, I just gave up and simply specified other fields but not the one I wanted to be null. The end result is that the field contains null after the row is inserted. I realize you'd like a better answer, but, I thought I'd throw in my $0.02 anyhow.
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How do I set a NULL value for the parameter field

Hi
I've another question. I'm going to set single values for parameter fields.
// e.g. set today for StartDate parameter field
fc.setCurrentValue("", "StartDate", new Date());
It should be possible to set a NULL value for date parameter fields.
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Sincerely,
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Display xml- tags with NULL - value

Hello
is there a way to display a tag while the value is null in this matter :
select
xmlforest(AFRAGNR_1, AFRAGNR_2 , AFRAGNR_3 ,AFRAGNR_4 )
AS XML
FROM VIEW_ABC WHERE x = v1 and y = v2
-- result: :AFRAGNR_3 and AFRAGNR_4 is null and not displayed:
XML
<AFRAGNR_1>J</AFRAGNR_1><AFRAGNR_2>J</AFRAGNR_2>
-- by using this, its not the result I want to get,
select
xmlelement( "AFRAGNR_1" , AFRAGNR_1 ) AFRAGNR_1
,xmlelement( "AFRAGNR_2" , AFRAGNR_2 ) AFRAGNR_2
,xmlelement( "AFRAGNR_3" , AFRAGNR_3 ) AFRAGNR_3
,xmlelement( "AFRAGNR_4" , AFRAGNR_4 ) AFRAGNR_4
FROM VIEW_ABC WHERE x = v1 and y = v2
another way ?
regards Norbert
Edited by: astramare on Nov 20, 2008 12:32 PM

I have the same problem:
- I need to generate XML in format <element id="1" />
- I need to pass some null values:
SELECT XMLElement ( "ShipToAddress"
, XMLAttributes ( customer_id as "CustomerNo"
, '' as "Code"
, substr(name,1,30) as "Name"
, '' as "Name2"
, substr(street||' '||house_nr,1,30) as "Address"
, '' as "Address2"
, city as "City"
, last_name ||' '|| first_name as "Contact"
, phone as "PhoneNo"
, '' as "CountryCode"
, fax as "FaxNo"
, zip_cd||' '||postal_code_extention as "PostCode"
, '' as "County"
, email as "EMail"
, website as "HomePage")) customer
FROM customers;
result should be:
<ShipToAddress CustomerNo="100001004" Code="3" Name="4C
Cons" Name2="" Address="Metrologielaan" Address2="" City="BRUSSEL" Contact="" PhoneNo="" CountryCode="BE" FaxNo="" PostCode="1130" County="" EMail="" HomePage="" />
and NOT (this is my result at the moment):
<ShipToAddress CustomerNo="100001004" Code="3" Name="4C
Cons" Address="Metrologielaan" City="BRUSSEL" CountryCode="BE" PostCode="1130"></ShipToAddress>;
Can someone help me with this please?
Edited by: willeha on Mar 5, 2009 7:18 AM

Null values passed into the servlet

Hi all,
I keep getting null values for all the params that I pass into the servlet i.e. sqltype, producttype, process, instance etc....I have attempted to print some of them out on the screen but I keep getting the 'NullPointerException' error message...can anyone tell me what it is that I have down wrong in the below code?
If I run the servlet with method calls that have hardcoded arguments in them it works but not when I pass in the params from the URL...I am absolutley puzzled!
Help!
package blotter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.db.util.WriteToLogFile;
import blotter.cache.*;
Servlet to extract an object that has already been placed
in the cache by GetBondPrices servlet from the cache.
public class ExtractSecurityObject extends HttpServlet
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     String productType = "";
     String instance = "";
     String process = "";
     String asOfDate = "";
     String currencyCode = "";
     String curveId = "";
     String results = "";
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private PrintWriter out;
     private WriteToLogFile logFile;
     // called when servlet first initialised
     public void init(ServletConfig config) throws ServletException
          super.init(config);
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     public void doGet( HttpServletRequest request, HttpServletResponse response )
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productType = request.getParameter("producttype").toUpperCase();
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          curveId = request.getParameter("curveid");
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response.setContentType( "text/html" );
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out.println("<HTML>");
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results = (String)cso.putSecurityinCache(null, request.getParameter("producttype"), request.getParameter("instance"), request.getParameter("process"), request.getParameter("asOfDate"), request.getParameter("curveId"), request.getParameter("currencyCode"));
//results = (String)cso.putSecurityinCache(null, "yc", "frafu", "official", "20011105", "baceod", "sek");
out.println(results);
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results = (String)cso.putSecurityinCache(request.getParameter("sqltype"), request.getParameter("producttype"), null, request.getParameter("process"), request.getParameter("asOfDate"), request.getParameter("curveId"), request.getParameter("currencyCode"));
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               out.println(((String)o1.object).toString());
// general catch for all exceptions
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               out.println( "Exception: The item that you requested was not found in the cache" + "<BR>" );
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// write to logfile
          logFile = new WriteToLogFile();
          logFile.setSourceDirName("blotter");
          logFile.setQuery(request.getQueryString());
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out.println("</HTML>");
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     public String getServletInfo()
     return this.getClass().getName();
}

That section of the code references a cache to extract an item that has been requested by the user. If the item is not in the cache i.e. if(o1 == null) then it will call a class that generates that object and places that object into the cache. The second time the user makes the same call then they will be handed a cached copy of that object which is aimed to make the whole servlet call faster.
That section of the code works fine coz I have tested that separately. It is the reading in of the arguments that is causing the problem.

How to pass NULL value in SSRS

Hi All,
I have a parameter called Division,Region and State.While loading these parameter I am replacing NULL value as "NO Division","NO Region" and "NO State".Note all parameters are multi valued.
Now In my dataset query If I put the condition like (division=@Division or Division is null) and (region=@region or Region is null) and (state=@State
or State is null).
In this scenario if I want to exclude null values need only specific Division which is not allowing me to do that with above condition.If I need all it works fine but not with specifice division,region and sate.
Any thought on this.
thanks
Chandan
Thanks Chandan

Thats because of or conditions
As per your explanation since you replace NULL value as No division etc what you need to do is just this
(division=@Division or @Division = 'All') and (region=@region or @Region = 'All') and (state=@State or @State = 'All').
this will make sure it will bring all values including NULLs when you pass All and will only give you specific division/region etc records when you pass a specific value.
To get NULL valued records alone you need to pass value as No Division,No region etc
Also you should change dataset query for parameter combo to make prompt as No Division etc for NULL values so that it can be selected as an option inside multi valued combo box to see NULL valued records
Please Mark This As Answer if it helps to solve the issue Visakh ---------------------------- http://visakhm.blogspot.com/ https://www.facebook.com/VmBlogs

Passing null values to the attributes of a CAF operation

Hi,
In CAF I am trying to fetch data through Web Service. For this I need to pass null value for the attributes of the operation.If I set the value to null it gives me missing parameter as the error.
Can anyone tell me how to pass null values to the attributes of a CAF operation?

Hi Xavier,
Declare the two variables of type if_wd_contex_node for e.g. lv_node and if_wd_context_element for e.g. lv_element. Now in the first one lets say lv_node get the refrence of dynamically created node like:
lv_node = wd_context->get_child_node('<node name>').
Then get the refrence of element like:
lv_element = lv_node->get_element( ). (You can also pass index as parameter check the method API)
then just set the value of attribute you want like:
lv_element->set_attribute( exporting name = '<attribute name>' value = '<your value>').
Regards,
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Is it possible to pass a null value to a method?

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