Getting Null Value

Hi
I have made on Bapi as webservice.. and i imported that webservice in model...
The structure of the model is like this.....
Request_Z_Bapi_Customer_GetDetail
.......|
.......|----- parameter
................|
................|-------customerNo
................|-------division
................|-------distributionchannel
................|-------saleOrg
................|-------passbuffer
.......|-------Response
................|------Result
.......................|-------peAddress
...............................|---city
...............................|---country
...............................|----name
...............................|----.....
...............................|----......
<b>I have writtin the following code in my Custom Controller</b>
Request_Z_BAPI_CUSTOMER_GETDETAIL_WS_customerGetDetail customer = new Request_Z_BAPI_CUSTOMER_GETDETAIL_WS_customerGetDetail();
    customer._setUser("abap");
    customer._setPassword("quinnox");
    wdContext.nodeRequest_Z_Bapi_Customer_GetDetail().bind(customer);
<b>I have executed the fuction like this...............</b>
public void executeCustomerDetails( )
    //@@begin executeCustomerDetails()
    try{
         wdContext.currentRequest_Z_Bapi_Customer_GetDetailElement().modelObject().execute();
         wdComponentAPI.getMessageManager().reportSuccess("Check "+wdContext.currentPeAddressElement().getFirstName());
    }catch(Exception e){
         wdComponentAPI.getMessageManager().reportException(e.getMessage(),true);
but when i am priniting the results i am getting the null values.........
ex:
wdComponentAPI.getMessageManager().reportSuccess("Check "+wdContext.currentPeAddressElement().getFirstName());
here i am trying to get the FirstName but i am getting null value.....
how to solve this problem....
please help me
Best Regards
Ravi Shankar B

Hi Ravi,
First i would suggest you to test/execute the webservice to makesure that its working properly.
If yes, pass all the madatory fields to the webservice input parameters. In your case customerID could be a madatory parameter to get the address.
You can pass that parameter by customer.setCustomerNo().
Regards, Anilkumar

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How can I get null values for the later weeks

Hi All,
When I execute this code I get the records till current week.
How can I display the output so that I get null values for the later weeks. (with the help of v_numOfWeeks variable in the code)
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DECLARE
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   v_id NUMBER;
   v_name VARCHAR2(1000);
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BEGIN
v_query := ' SELECT SUM(product_bkg), postn_id, postn_tbl.postn_name, b.week_num, b.period_num
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OPEN v_refcur FOR v_query;
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This is the output when I execute this code.
P3W1 COMM CNTRL ISAM 213 26961.61
P3W2 COMM CNTRL ISAM 213 12870.4
P3W3 COMM CNTRL ISAM 213 245.88
P3W1 COMM CNTRL ISAM 273 72831.2
P3W2 COMM CNTRL ISAM 273 8739.38
P3W3 COMM CNTRL ISAM 273 3764.92
P3W1 COMM CNTRL TAM 213 49844
P3W2 COMM CNTRL TAM 213 20515.17
P3W3 COMM CNTRL TAM 213 16167.46
P3W2 COMM CNTRL TAM 216 12561.4
P3W3 COMM CNTRL TAM 216 2027.1
P3W1 COMM CNTRL TAM 273 -3336.71
P3W2 COMM CNTRL TAM 273 -1376.68
P3W3 COMM CNTRL TAM 273 19707.42
P3W1 Damon Walters -609.07
P3W2 Damon Walters 30030.24
P3W3 Damon Walters 37475.1
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P3W1 COMM CNTRL ISAM 213 26961.61
P3W2 COMM CNTRL ISAM 213 12870.4
P3W3 COMM CNTRL ISAM 213 245.88
P3W4 COMM CNTRL ISAM 213
P3W5 COMM CNTRL ISAM 213
P3W1 COMM CNTRL ISAM 273 72831.2
P3W2 COMM CNTRL ISAM 273 8739.38
P3W3 COMM CNTRL ISAM 273 3764.92
P3W4 COMM CNTRL ISAM 273
P3W5 COMM CNTRL ISAM 273
P3W1 COMM CNTRL TAM 213 49844
P3W2 COMM CNTRL TAM 213 20515.17
P3W3 COMM CNTRL TAM 213 16167.46
P3W4 COMM CNTRL TAM 213
P3W5 COMM CNTRL TAM 213
P3W1 COMM CNTRL TAM 273 -3336.71
P3W2 COMM CNTRL TAM 273 -1376.68
P3W3 COMM CNTRL TAM 273 19707.42
P3W4 COMM CNTRL TAM 273
P3W5 COMM CNTRL TAM 273
P3W1 Damon Walters -609.07
P3W2 Damon Walters 30030.24
P3W3 Damon Walters 37475.1
P3W4 Damon Walters
P3W5 Damon Walters Edited by: polasa on Oct 28, 2008 6:42 PM

Sure, in a Single SQL ->
satyaki>
satyaki>select * from v$version;
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - Prod
PL/SQL Release 10.2.0.3.0 - Production
CORE    10.2.0.3.0      Production
TNS for 32-bit Windows: Version 10.2.0.3.0 - Production
NLSRTL Version 10.2.0.3.0 - Production
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satyaki>
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19      union all
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23      union all
24      select 2, 1, 15 from dual
25      union all
26      select 2, 2, 30 from dual
27      union all
28      select 2, 3, 20 from dual
29    )
30 -- End Of Test Data --
31 select period_num,
32         week_num,
33         (
34            select sum(week_tab.bkg1)
35            from week_tab
36            where period_num = m.period_num
37            and   week_num   = m.week_num
38            group by week_num, period_num
39         ) sum_bkg1
40 from (
41        select dum.week_num,
42              wk.period_num
43        from (
44                select 1 week_num from dual
45                union all
46                select 2 from dual
47                union all
48                select 3 from dual
49                union all
50                select 4 from dual
51                union all
52                select 5 from dual
53              ) dum ,
54              (
55                select distinct period_num
56                from week_tab
57          ) wk
58      ) m;
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         1          2         60
         1          3         40
         1          4
         1          5
         2          1         30
         2          2         50
         2          3         30
         2          4
         2          5
10 rows selected.
Elapsed: 00:00:00.48
satyaki>Regards.
Satyaki De.

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I have set up an array which is supposed to take the
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Midlet gets null values from servlet

hey,
based on one of the source code examples on the java.sun.com website i made a midlet/servlet application. the midlet is sending a product id to the servlet, the servlet queries the database and shows the productinformation, the midlet reads the servlet output and displays it on his midlet form
when i invoke the servlet in my browser: http://localhost:8080/Magazijn/query?product=1 then everything works fine (i see: Product Name : Deur). when the midlet is invoking the servlet i see Product Name : null
after hours of searching the only thing i could come up with is that the servlet isn't passing the string retrieved from the resultset to the midlet
the strange thing is that when i papss a normal string, for instance:
String test = "test";
out.println(test);
that he shows this correct both in my browser and midlet
when i do this:
prodName = resutl.getString("name");
out.println(prodName);
i see "Deur" in my browser, but i see "null" in my midlet
anyone can help me?
here's the servlet source:
import java.io.*;
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.Date;
public class Magazijn extends HttpServlet {
public void doGet(HttpServletRequest request,
          HttpServletResponse response)
                    throws IOException, ServletException {
          doPost(request,response);
public void doPost(HttpServletRequest request,
          HttpServletResponse response)
                    throws IOException, ServletException {
     String url="jdbc:mysql://localhost/test?user=root&password=root";
     Connection con = null;
     Statement stmt;
     ResultSet rs;
     String query;
     int prodId;
     String prodNaam;
     String prodPlaats;
     String prodAantal;
     response.setContentType("text/plain");
     PrintWriter out = response.getWriter();
     BufferedReader br = request.getReader();
     String buf = br.readLine();
     try {
               //laden van de mysql driver
               Class.forName("com.mysql.jdbc.Driver");
               //maken van connectie met database
               con = DriverManager.getConnection (url, "root", "root");
               //aanmaken van statement object
               stmt = con.createStatement();
               //nakijken welke naam we zoeken van product
               String prod = request.getParameter("product");
               //uitvoeren van query en die opvangen in een resultset
               query = "SELECT * from onderdelen where id="+prod;
               ResultSet result = stmt.executeQuery(query);
               result.next();
               prodId = result.getInt("id");
               prodNaam = result.getString("naam");
               prodPlaats = result.getString("plaats");
               prodAantal = result.getString("aantal");
          out.println(new Date());
          out.println("");
               out.println("Product ID: "+prodId);
               out.println("Productnaam: "+prodNaam);
               out.println("Plaats: "+prodPlaats);
               out.println("Aantal: "+prodAantal);
          catch(ClassNotFoundException e) {
               out.println("Could not load database driver: " + e.getMessage());
          catch(SQLException e) {
               out.println("SQLException caught: " + e.getMessage());
          finally {
               //sluiten database connectie
               try {
                    if (con != null) con.close();
               catch (SQLException e) {}
here's the midlet source:
import javax.microedition.rms.*;
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
import javax.microedition.io.*;
import java.io.*;
import java.util.Vector;
public class MagazijnMidlet extends MIDlet implements CommandListener {
Display display = null;
List menu = null;
TextBox input = null;
String prodid = null;
String url = "http://localhost:8080/Magazijn/query";
static final Command backCommand = new Command("Terug", Command.BACK, 0);
static final Command submitCommand = new Command("Verstuur", Command.OK, 2);
static final Command exitCommand = new Command("Afsluiten", Command.STOP, 3);
String currentMenu = null;
public MagazijnMidlet() { }
public void startApp() throws MIDletStateChangeException {
display = Display.getDisplay(this);
menu = new List("Maak uw keuze", Choice.IMPLICIT);
menu.append("Opvragen product gegevens", null);
menu.addCommand(exitCommand);
menu.setCommandListener(this);
mainMenu();
public void pauseApp() { }
public void destroyApp(boolean unconditional) {
notifyDestroyed();
void mainMenu() {
display.setCurrent(menu);
//Vraag om productnummer op te geven
public void askProdid() {
input = new TextBox("Geef Productnummer:","", 5, TextField.ANY);
input.addCommand(submitCommand);
input.addCommand(backCommand);
input.setCommandListener(this);
input.setString("");
display.setCurrent(input);
//Maken connectie midlet + verwerking
void invokeServlet(String url) throws IOException {
HttpConnection c = null;
InputStream is = null;
OutputStream os = null;
StringBuffer b = new StringBuffer();
TextBox t = null;
try {
c = (HttpConnection)Connector.open(url);
c.setRequestMethod(HttpConnection.POST);
c.setRequestProperty("IF-Modified-Since",
     "20 Jan 2001 16:19:14 GMT");
c.setRequestProperty("User-Agent",
     "Profile/MIDP-1.0 Configuration/CLDC-1.0");
c.setRequestProperty("Content-Language", "en-CA");
// send request to the servlet.
os = c.openOutputStream();
String str = "product="+prodid;
byte postmsg[] = str.getBytes();
System.out.println("Length: "+str.getBytes());
for(int i=0;i<postmsg.length;i++) {
os.write(postmsg);
// or you can easily do:
//os.write(("product="+prodid).getBytes());
os.flush();
// receive response and display it in a textbox.
is = c.openInputStream();
int ch;
while((ch = is.read()) != -1) {
b.append((char) ch);
System.out.print((char)ch);
Form formProdGeg = new Form ("Gegevens product");
StringItem infoItem = new StringItem("",b.toString());
formProdGeg.append (infoItem);
formProdGeg.addCommand (backCommand);
formProdGeg.setCommandListener (this);
display.setCurrent (formProdGeg);
} finally {
if(is!= null) {
is.close();
if(os != null) {
os.close();
if(c != null) {
c.close();
display.setCurrent(t);
// event handler
public void commandAction(Command c, Displayable d) {
String label = c.getLabel();
if(label.equals("Afsluiten")) {
destroyApp(true);
} else if (label.equals("Terug")) {
mainMenu();
} else if (label.equals("Verstuur")) {
prodid = input.getString();
try {
invokeServlet(url);
}catch(IOException e) {}
} else {
askProdid();
tia
lee

Hi,
first for some efficeincy, in your place your connection to the database in the init() method so you can have on instance of the connection.
in your midlet place the ui initialization in its constructor
ok, Why dont you try the query in the url
i.e http://localhost:8080/Magazijn/query=";
then as you input the product id without setting requests
c = (HttpConnection)Connector.open(url+productid);
i think it will work properly
tell me what happens with you

Null values not getting

Hi all,
Below query is not getting null values. Please help me to get the null values.
SELECT
T5.name,
T4.VOD_NAME,
count(T6.ATTRIB_03)
FROM
SIEBEL.S_VOD_VER T1
INNER JOIN VOD T2 ON T1.VOD_ID = T2.ROW_ID
LEFT OUTER JOIN ISS_OBJ_DEF T3 ON T1.VOD_ID = T3.VOD_ID
LEFT OUTER JOIN VOD T4 ON T3.PAR_VOD_ID = T4.OBJECT_NUM
LEFT OUTER JOIN PROD_INT T5 ON T2.OBJECT_NUM = T5.CFG_MODEL_ID
left outer join PROD_INT_XM T6 ON T5.row_id= T6.PAR_ROW_ID
WHERE
T4.vod_name = 'Componentes' and T1.CURR_VER_FLG='Y' and T3.last_vers = 0 and T6.TYPE = 'GALA_PROD_OPER'
group by T5.name,T4.VOD_NAME having count(T6.ATTRIB_03) != 7
Edited by: user9522927 on Jun 16, 2010 11:44 PM
Edited by: user9522927 on Jun 16, 2010 11:44 PM

Hi,
As you do the inner join it will not retrieve the null rows.
See the below illustration:
SQL> select * from a;
ID
12
12
10
11
13
7 rows selected.
SQL> select * from b;
ID
12
13
45
25
36
9 rows selected.
********* no null rows retrieved for inner join below ******************
SQL> select a.id from a inner join b on a.id=b.id;
ID
12
12
13
********* null rows retrieved for outer join below **************
SQL> select a.id from a left outer join b on a.id=b.id;
ID
12
12
13
10
11
7 rows selected.
Edited by: adnanKaysar on Jun 17, 2010 1:04 PM

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
     String sqlType = "";
     String productType = "";
     String instance = "";
     String process = "";
     String asOfDate = "";
     String currencyCode = "";
     String curveId = "";
     String results = "";
     private String debug;
private PrintWriter out;
     private WriteToLogFile logFile;
     // called when servlet first initialised
     public void init(ServletConfig config) throws ServletException
          super.init(config);
     // method called for each get request
     public void doGet( HttpServletRequest request, HttpServletResponse response )
               throws ServletException, IOException
          String toWrite = " ";
// Get the object identifier from the parameters passed in
          sqlType = request.getParameter("sqltype");
productType = request.getParameter("producttype").toUpperCase();
          instance = request.getParameter("instance");
          process = request.getParameter("process");
          asOfDate = request.getParameter("asofdate");
          curveId = request.getParameter("curveid");
          currencyCode = request.getParameter("ccy").toUpperCase();
          out.println(currencyCode);
          if ( request.getParameter("debug") !=null)
               debug = request.getParameter("debug");
          else
               debug ="";
          // set the mime type to html
response.setContentType( "text/html" );
out = response.getWriter();
out.println("<HTML>");
          try
          // write some parameters to a log file
          toWrite = toWrite + "<li>" + getServletInfo() + " at " + new Date() + " " + sqlType + " " +
                    productType + " " + instance + " " + process + " " + asOfDate + " " + curveId + " " +
                    currencyCode;
     CachedObject o1 = (CachedObject)CacheManager.getCache("EB_" + currencyCode + productType + asOfDate);
if(o1 == null){
          CacheSecurityObject cso = new CacheSecurityObject();
               if((request.getParameter("sqltype") == null) && (request.getParameter("instance") != null)){
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);
               } else {
//results = (String)cso.putSecurityinCache("bondtypes", "bond", null, "official", "20011105", "baceod", "eur");
results = (String)cso.putSecurityinCache(request.getParameter("sqltype"), request.getParameter("producttype"), null, request.getParameter("process"), request.getParameter("asOfDate"), request.getParameter("curveId"), request.getParameter("currencyCode"));
out.println(results);
          else{
               out.println(((String)o1.object).toString());
// general catch for all exceptions
          catch(Exception exception)
               out.println( "Exception: The item that you requested was not found in the cache" + "<BR>" );
               toWrite = toWrite + "Exception : " + exception.getMessage() + "\n" ;
          finally
// write to logfile
          logFile = new WriteToLogFile();
          logFile.setSourceDirName("blotter");
          logFile.setQuery(request.getQueryString());
          logFile.setServletPath(request.getServletPath());
          if (toWrite!=null)
          logFile.writeLog(getServletInfo(),toWrite);
out.println("</HTML>");
          out.close();
     // need the class name for log file
     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.

Getting Null Value

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