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Forms error [message #191629]

Thu, 07 September 2006 06:26

orafan2003
Messages: 122
Registered: February 2006

Senior Member

Hi,
I have a function called getTaskLength to get the length of a string. I pass a value called 'user1' into the webservice and the webservice has to return a value ie a number which is the length.

declare
    jo ora_java.jobject;
    rv ora_java.jobject;
begin
      jo:=TasksModuleServiceStub.new;
   
  rv:=TasksModuleServiceStub.getTaskLength(jo,'user1');
  --:tasklist.text_item41:=rv; --> This is where I am getting the error
end;

The error is: "Expression is of wrong type"

How can I fix this error?

[Updated on: Mon, 11 September 2006 02:51] by Moderator

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Re: Forms error [message #191755 is a reply to message #191629]

Fri, 08 September 2006 00:54

sandeepk7
Messages: 137
Registered: September 2006

Senior Member

Check out the getTaskLength function as what the datatype IN parameters have and what datatype this function will return.
As of your current code rv is of Ora_java.jobject datatype while your text item :tasklist.text_item41 is not of the same datatype.

Sandy

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Re: Forms error [message #191834 is a reply to message #191755]

Fri, 08 September 2006 05:28

orafan2003
Messages: 122
Registered: February 2006

Senior Member

Hi,
This is the code in when-button-pressed

DECLARE
  jo ora_java.jobject;
  applicationlist  	ORA_JAVA.JARRAY;
  ex                    ora_java.jobject;
  listLength   		NUMBER;
  loanString   		VARCHAR2(30000);
  delimiterPos 	        NUMBER;
  
BEGIN
  jo:=TasksModuleServiceStub.new;
  
  applicationlist := TasksModuleServiceStub.getTasks(jo,'user1');

  -- How many strings did the Java return?
  listLength := ORA_JAVA.GET_ARRAY_LENGTH(applicationlist);

  -- For each string, extract the details 
  for i in 1..listLength loop

    -- Get element i from the array of strings.
    loanString := ORA_JAVA.GET_STRING_ARRAY_ELEMENT(applicationlist, i);

    -- Parse the string looking for the '@' character to get each field.
    delimiterPos := instr(loanString, '@');
    :ssn       := substr(loanString, 1, delimiterPos-1);

    loanString   := substr(loanString, delimiterPos+1);
    delimiterPos := instr(loanString, '@');
    :taskid := substr(loanString, 1, delimiterPos-1);

  end loop;
		
EXCEPTION
 	WHEN ORA_JAVA.JAVA_ERROR then 
		message('Unable to call out to Java, ' ||ORA_JAVA.LAST_ERROR);
	WHEN ORA_JAVA.EXCEPTION_THROWN then 
		ex := ORA_JAVA.LAST_EXCEPTION;
		message(Exception_.toString(ex));
	WHEN others then
		ex := ORA_JAVA.LAST_EXCEPTION;
		message('Exception2: '||Exception_.toString(ex));
end;

I am getting an error at runtime.
java.lang.ArrayIndexOutOfBoundsException

Why does this error occur and what should I do to fix it?
Kindly guide me.

[Updated on: Mon, 11 September 2006 02:55] by Moderator

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Re: Forms error [message #191853 is a reply to message #191834]

Fri, 08 September 2006 06:54

orafan2003
Messages: 122
Registered: February 2006

Senior Member

Hi I just fixed this error
by making small changes in the code
for i in 0..listLength-1 loop

I am using the above code to send a value called "user1" from my form and trying to retrieve array of values of this format from the webservice.

12341234@@@paul@@@loan@@@34
12341235@@@jones@@@loan@@@45
12341236@@@peter@@@loan@@@98

My code seems to be right but none of the values are getting retrieved.
So I wrote another code to find out how many records are coming from the webservice.
It is like this

declare
    jo ora_java.jobject;
    rv ora_java.jobject;
    ex ora_java.jobject;
    numberOfApplications number;
begin
  jo:=TasksModuleServiceStub.new;
   
  rv:=TasksModuleServiceStub.getTaskLength(jo,'user1');
   numberOfApplications := ORA_JAVA.GET_ARRAY_LENGTH(rv);
  :tasklist.text_item41:=numberOfApplications;
end;

This code works and I am able to get the value "3".
What is the problem with my previous code that I am not able to retrieve values? I am only able to get the number of records but not able to retrieve the records.
Kindly help.

[Updated on: Mon, 11 September 2006 02:56] by Moderator

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Re: Forms error [message #192134 is a reply to message #191853]

Mon, 11 September 2006 02:56

djmartin
Messages: 10181
Registered: March 2005
Location: Surges Bay TAS Australia

Senior Member
Account Moderator

Have you solved your problem?

David

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Re: Forms error [message #192156 is a reply to message #192134]

Mon, 11 September 2006 05:24

orafan2003
Messages: 122
Registered: February 2006

Senior Member

Sir,
I haven't solved my problem.
Now I am able to get the entire string like this when I send "user1".

"bpel://localhost/default/BANK_804~1.0/14637-BpInv1-BpSeq1.6-2@@@USER1_THEBANK@@@LOAN@@@12341234@@@Robert Jones"

"bpel://localhost/default/BANK_804~1.0/14642-BpInv1-BpSeq1.6-2@@@USER1_THEBANK@@@LOAN@@@11112222@@@Shyla James"

From the above string, I have to get values like this in text items.
1) 12341234,11112222
2) Robert Jones,Shyla James
3) LOAN,LOAN
4) USER1_THEBANK,USER1_THEBANK

I am able to get only one set of values(only 2 values though..I am still writing the code) though I used a loop. Sir, what is the problem with my code that I am not able to get array of values?
This is the code.

DECLARE
  jo ora_java.jobject;
  applicationlist  	ORA_JAVA.JARRAY;
  ex ora_java.jobject;
  listLength   		NUMBER;
  loanString   		VARCHAR2(30000);
  delimiterPos 	NUMBER;
  
BEGIN
jo:=TasksModuleServiceStub.new;
  -- Call out to Java to get the list of loan applications to be approved.
  applicationlist := TasksModuleServiceStub.getTasks(jo,'user1');

  -- How many strings did the Java return?
  listLength := ORA_JAVA.GET_ARRAY_LENGTH(applicationlist);

  -- For each string, extract the details of the loan.
 
     for i in 0..listLength-1 loop

    -- Get element i from the array of strings.
    loanString := ORA_JAVA.GET_STRING_ARRAY_ELEMENT(applicationlist, i);
    
     -- Parse the string looking for the '@' character to get each field.
   delimiterPos := instr(loanString, '@');
    :tasklist.ssn       := substr(loanString, 1, delimiterPos-1);
    

    loanString   := substr(loanString, delimiterPos+1);
    delimiterPos := instr(loanString, '@');
    :tasklist.cname := substr(loanString, 1, delimiterPos-1);

   loanString   := substr(loanString, delimiterPos+1);
   delimiterPos := instr(loanString, '@');
   :tasklist.ptype := substr(loanString, 1, delimiterPos-1);
    
    loanString   := substr(loanString, delimiterPos+1);
    delimiterPos := instr(loanString, '@');
    :tasklist.taskid := substr(loanString, 1, delimiterPos-1);
  end loop;

Thank you.

[Updated on: Tue, 12 September 2006 02:52] by Moderator

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Re: Forms error [message #192412 is a reply to message #192156]

Tue, 12 September 2006 04:17

orafan2003
Messages: 122
Registered: February 2006

Senior Member

Hi, I just simplified my code to find out of I am able to retrieve both the strings or not.

DECLARE
  jo               Ora_java.Jobject;
   ApplicationList  Ora_java.JarRay;
   ex               Ora_java.Jobject;
   ListLength       NUMBER;
   LoanString       VARCHAR2(30000);
   Delimiterpos     NUMBER;
BEGIN
  jo := TasksModuleServiceStub.New;
  
  ApplicationList := TasksModuleServiceStub.GetTasks(jo,'user1');
  
  ListLength := Ora_java.Get_Array_Length(ApplicationList); ---returning 2 ie the number of records
  
  FOR i IN 0.. ListLength LOOP
    LoanString := Ora_java.Get_String_Array_Element(ApplicationList,i); ---the string that I get from webservice
    
    :text_item43 := LoanString;
  END LOOP;
END;

For the text_item43 I set Number of records displayed to 4.
But I am able to view only the second string and not the first one.
Is there any error in my code?

Upd-Mod: You haven't got the hint about formatting your text have you?

[Updated on: Tue, 12 September 2006 21:29] by Moderator

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Re: Forms error [message #192572 is a reply to message #192412]

Tue, 12 September 2006 21:30

djmartin
Messages: 10181
Registered: March 2005
Location: Surges Bay TAS Australia

Senior Member
Account Moderator

I looked at your problem yesterday but I was unable to get an answer in before the end of the day.

You need to do a 'Next_Record' so that each entry goes on a 'new line'. Do this after the assignment. Also, use ':blk.itm' notation, not just ':itm'.

David

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Re: Forms error [message #192746 is a reply to message #192572]

Wed, 13 September 2006 07:45

orafan2003
Messages: 122
Registered: February 2006

Senior Member

Hi,
This is my actual query in when-new-form-instance. My form is like this. I am sending a value called "user1" into the webservice and the webservice is returning me an array of values. I put those 5 values in 5 text items but when I run my form, I am able to view only the last row of 5 values. May be the values are getting over-writte. So I am sending these returned values to a table called test_bank. From this table, I want to retrieve the multiple records.
As of now the webservice is returning only 2 values but I am getting 100 values all repetetions. Can u plz correct my code?
Now I based the block on the test_bank table.

DECLARE
   jo                     ora_java.jobject;
   applicationlist        ORA_JAVA.JARRAY;
   ex                     ora_java.jobject;
   numberOfApplications   NUMBER;
   order_string           VARCHAR2 (30000);
   delimiter_Pos          NUMBER;
   TASKID                 varchar2 (2000);
   ASSIGNEE               varchar2 (300);
   PTYPE                  varchar2 (100);
   SSN                    number;
   CNAME                  varchar2 (1000);
BEGIN
   jo                    := TasksModuleServiceStub.new;
   applicationlist       := TasksModuleServiceStub.getTasks (jo, 'user1');
   numberOfApplications  := ORA_JAVA.GET_ARRAY_LENGTH (applicationlist);

   if numberOfApplications > 0 then
      for i in 0 .. numberOfApplications - 1
      loop
         order_string   := ORA_JAVA.GET_STRING_ARRAY_ELEMENT (applicationList, i);
         delimiter_Pos  := instr (order_string, '@');
         taskid         := substr (order_string, 1, delimiter_Pos - 1);
         order_string   := substr (order_string, delimiter_Pos + 1);
         delimiter_Pos  := instr (order_string, '@');
         ssn            := substr (order_string, 1, delimiter_Pos - 1);
         order_string   := substr (order_string, delimiter_Pos + 1);
         delimiter_Pos  := instr (order_string, '@');
         cname          := substr (order_string, 1, delimiter_Pos - 1);
         order_string   := substr (order_string, delimiter_Pos + 1);
         delimiter_Pos  := instr (order_string, '@');
         assignee       := substr (order_string, 1, delimiter_Pos - 1);
         order_string   := substr (order_string, delimiter_Pos + 3);
         delimiter_Pos  := instr (order_string, '@');
         ptype          := substr (order_string, 1, delimiter_Pos - 1);
      end loop;
   end if;

   insert into test_bank
        values (TASKID,
                ASSIGNEE,
                PTYPE,
                SSN,
                CNAME);

   next_record;
   standard.commit;
   go_block ('test_bank');
   execute_query;
EXCEPTION
   WHEN ORA_JAVA.JAVA_ERROR then
      message ('Unable to call out to Java, ' || ORA_JAVA.LAST_ERROR);
   WHEN ORA_JAVA.EXCEPTION_THROWN then
      ex  := ORA_JAVA.LAST_EXCEPTION;
      message (Exception_.toString (ex) );
END;

Upd-Mod: Please only post formatted code and IN CODE TABS!!

[Updated on: Thu, 14 September 2006 20:17] by Moderator

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Re: Forms error [message #193087 is a reply to message #192746]

Thu, 14 September 2006 20:24

djmartin
Messages: 10181
Registered: March 2005
Location: Surges Bay TAS Australia

Senior Member
Account Moderator

You have a 'loop' statement. You have to do the work INSIDE the loop. That means either doing an assignment to the block items in the loop and using a 'next_record' to go to the next record OR doing the 'insert' command. The 'commit' can be either inside or outside the loop. Try the following and tell me whether it works.

DECLARE
   jo                     ora_java.jobject;
   applicationlist        ORA_JAVA.JARRAY;
   ex                     ora_java.jobject;
   numberOfApplications   NUMBER;
   order_string           VARCHAR2 (30000);
   delimiter_Pos          NUMBER;
   TASKID                 varchar2 (2000);
   ASSIGNEE               varchar2 (300);
   PTYPE                  varchar2 (100);
   SSN                    number;
   CNAME                  varchar2 (1000);
BEGIN
   jo                    := TasksModuleServiceStub.new;
   applicationlist       := TasksModuleServiceStub.getTasks (jo, 'user1');
   numberOfApplications  := ORA_JAVA.GET_ARRAY_LENGTH (applicationlist);

   if numberOfApplications > 0 then
      for i in 0 .. numberOfApplications - 1
      loop
         order_string   := ORA_JAVA.GET_STRING_ARRAY_ELEMENT (applicationList, i);
         delimiter_Pos  := instr (order_string, '@');
         taskid         := substr (order_string, 1, delimiter_Pos - 1);
         order_string   := substr (order_string, delimiter_Pos + 1);
         delimiter_Pos  := instr (order_string, '@');
         ssn            := substr (order_string, 1, delimiter_Pos - 1);
         order_string   := substr (order_string, delimiter_Pos + 1);
         delimiter_Pos  := instr (order_string, '@');
         cname          := substr (order_string, 1, delimiter_Pos - 1);
         order_string   := substr (order_string, delimiter_Pos + 1);
         delimiter_Pos  := instr (order_string, '@');
         assignee       := substr (order_string, 1, delimiter_Pos - 1);
         order_string   := substr (order_string, delimiter_Pos + 3);
         delimiter_Pos  := instr (order_string, '@');
         ptype          := substr (order_string, 1, delimiter_Pos - 1);

         insert into test_bank
              values (TASKID,
                      ASSIGNEE,
                      PTYPE,
                      SSN,
                      CNAME);
      end loop;

      standard.commit;
   end if;

   go_block ('test_bank');
   execute_query;
EXCEPTION
   WHEN ORA_JAVA.JAVA_ERROR then
      message ('Unable to call out to Java, ' || ORA_JAVA.LAST_ERROR);
   WHEN ORA_JAVA.EXCEPTION_THROWN then
      ex  := ORA_JAVA.LAST_EXCEPTION;
      message (Exception_.toString (ex) );
END;

By the way, do you want the records from the previous time that the form was run to still be in the table or should you truncate the table before loading the new records?

David

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Re: Forms error [message #193157 is a reply to message #193087]

Fri, 15 September 2006 01:55

orafan2003
Messages: 122
Registered: February 2006

Senior Member

Sir,
Thanks a lot!! My form is working fine.It is getting values from the webservice and also sending values into it. I put my insert statement in the loop as you said.
I also included a delete statement with commit so that the old values are deleted. My task is successfully completed!! Sir..Thank you for your guidance.
Regards, Suj

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