Returning values from JNI functions to Java

I have a JNI function which returns a "jstring" to the calling Java function.
I need also to return 2 byte values.
Can I return them all...? if so, how?

I have a JNI function which returns a "jstring" to the
calling Java function.
I need also to return 2 byte values.
Can I return them all...? if so, how?"Also"? Then you do the same thing as if you were returning two different types in java only code, you wrap it in an object.

Similar Messages

Getting Return values from RFC function call with visual basic

Hi,
I am creating a sample app to connect to a SAP system which call its RFC functions created with ABAP. It was known that the function will return more than 1 return values.
   SAP Function name ==> "ZFMTP_RFC_GET_RESULT"
        Export parameters (to SAP):
                - Student Name [char 10]         ==> "STUNAME"
                - Student ID         [char 20]        ==> "STUID"
       Return values (From SAP):
                - Results [char 10]        ==> "RESULT"
                - Remarks [char 200]        ==> "REMARKS"
i have managed to get sample codes for connecting and call a RFC function with vb but they only get a return value. How do i retrieve multiple return values like the above function "RESULT" and "REMARKS"?
Here's my vb code to accessing the function
        Dim R3 As Object
        Dim FBFunc As Object
        Dim returnFunc As Boolean
        Dim connected As Boolean
        R3 = CreateObject("SAP.Functions")
        R3.Connection.Client = "000"
        R3.Connection.User = "BCUSER"
        R3.Connection.Password = "minisap"
        R3.Connection.Language = "DE"
        R3.Connection.System = "dtsystem"
        R3.Connection.Applicationserver = "xxx.xxx.xxx.xxx"
        connected = R3.Connection.Logon(0, True)
        If connected <> True Then
            MsgBox("Unable to connect to SAP")
        End If
        FBFunc = R3.add("ZFMTP_RFC_GET_RESULT")
        FBFunc.exports("STUNAME") = "Jonny"
        FBFunc.exports("STUID") = "12345"
        returnFunc = FBFunc.Call() <<== How do i get the return value? or RESULT and REMARKS of the RFC Function?
thanks alot.
Edited by: Eugene Tan on Mar 4, 2008 7:17 AM

Hi Gregor,
Thanks for the link....i am having some doubts with the codes, hope you can clarify them for me if you know the codes..
Below is the code snippet.
Set impReturn = CHPASS_FN.Imports("RETURN") <<=== is RETURN the standard keyword to get a                                                                                return object?
expPassword.Value = currpass
expNewPass.Value = newpass
expFillRet.Value = "1"
''' Call change password function
If CHPASS_FN.Call = True Then
    outFile.Write (", Called Function")
    Message = impReturn("MESSAGE") <<==== So if i have 3 return values..i just replace with the return                                                               value variable names?
    outFile.WriteLine " : " & Message
Else
    outFile.Write (", Call to function failed")
End If
thanks alot...all your help is very appreciated.

Returning both raise_application_error and return value from db function...

Hi ,
I use Oracle 10g and forms10g.
I have written a db packaged function such as:
function fnc_ipologismos_xiliometron(code_poleis_apo_var in varchar2,code_poleis_pros_var in varchar2)
   return number
   is
    apostasi_var ref_apostaseis_poleon.apostasi%type;
    onomasia_pol_apo_var ref_poleis.onomasia%type;
    onomasia_pol_pros_var ref_poleis.onomasia%type;
    begin
     begin
        select onomasia into onomasia_pol_apo_var
          from ref_poleis
          where code_poleis=code_poleis_apo_var;
     end;
     begin
        select onomasia into onomasia_pol_pros_var
          from ref_poleis
          where code_poleis=code_poleis_pros_var;
     end;
     begin
      select apostasi into apostasi_var
       from ref_apostaseis_poleon
       where code_poleis_apo=code_poleis_apo_var and code_poleis_pros=code_poleis_pros_var;
      exception
       when no_data_found
then
apostasi_var:=0;
return apostasi_var;
raise_application_error(-20015,'a message');
--return apostasi_var;
end;      return apostasi_var;
    end;The problem is that when the exception written above (in bold) returns 0 and exits the function.... whereas i want this value to be returned as well as the message in the raise_application_error....
I call this function in WHEN-VALIDATE-ITEM of a block item... such as:
if pkg_mod3_general.fnc_ipologismos_xiliometron
(:mod3_entoli_metakinisis.code_poleis_apo_type_id,:mod3_entoli_metakinisis.code_poleis_type_id)=0
            and :mod3_entoli_metakinisis.seq_code_meso_metakin_type_id=2
            then
              raise form_trigger_failure;
end if;     When the above condition is true then no message is displayed and the cursor sticks to the item(as the raise_application_error in the db packaged function is after the exit of the function) and when the condition is false then no message is displayed again ... as expected.....
How is it get the desired result.....- get the message from the raise_application_error and the function returns 0.....?????
Many thanks,
Simon

you cannot RETURN and RAISE a function.
RETURN ends the function immediately
RAISE ends the program unit and jumps in the EXCEPTION-Handler, if it exists. Else the function ends

Return value from database function taking a lot more time than the query

Hi guys,
I have a Query that does a call to a database function. The function takes in a few parameters and returns a Date. Now, the query within the function takes barely .05 seconds. However, doing a select get_join_dates from dual is taking almost 6 seconds for each call.
Here is the Query:
select s.student_id, s.student_name, s.organization_code
from   student s
where s.student_id = :p_student_id
and    s.student_enrollment_date = get_join_dates( :p_year,
                                                   :p_month,
                                                   :p_student_id,
                                                   s.organization_code );And here is the database function. The select inside this function barely takes 0.05 seconds per call. This function gets called 3 times in my case as there are 3 records in the org_body table for this student.
create or replace function
get_join_dates( p_yyyy in org_body.fiscal_yyyy%type,
                       p_month in org_body.fiscal_mm%type,
                       p_student_id in student.student_id%type,
                       p_organization_code in org_body.organization_code%type) return date as
    t_enrollment_date date;
    cursor cur_latest_enrollment_date is
      select max(enrollment_date)
      from   org_body
      where fiscal_yyyy = p_yyyy
      and    fiscal_mm = p_month
      and    student_id = p_student_id
      and    organization_code = p_organization_code;
BEGIN
    open cur_latest_enrollment_date ;
    fetch cur_latest_enrollment_date into t_enrollment_date;
    close cur_latest_enrollment_date ;
    return t_enrollment_date;
exception
    when others then
      null;
end;owever, when I run the following statement below, it takes close to 6 seconds to retrieve a record. In turn, my Query is becoming really slow and taking almost 35 seconds. Imagine that with more records.
select get_join_dates( 2010, '01', '2167543', 'PSYCH01' ) from dual;If I run my query with this condition below, it takes 0.5 seconds.
select s.student_id, s.student_name, s.organization_code
from   student s
where s.student_id = :p_student_id
and      s.student_enrollment_date = '01-JAN-10'Any ideas would be greatly appreciated.

Any reason why you are doing this with the stored function?
You could just do this with SQL. Embed the query in the function as a subquery in your initial query from STUDENT.
select s.student_id, s.student_name, s.organization_code
from   student s
where s.student_id = :p_student_id
and    s.student_enrollment_date =
(select max(enrollment_date)
      from   org_body
      where fiscal_yyyy = :p_year
      and    fiscal_mm = :p_month
      and    student_id = s.student_id
      and    organization_code = s.organization_code);Why your function is not performing: I cannot say that with the information you have provided.
Maybe sqltrace a call and see what the reason is.

Getting values from a function module called in a WDA method

Friends,
I am trying to execute a function module from WDA.
I have created a service call for the function module. The function module takes values from the user, looks up the corresponding values of another field and returns the values in an internal table.
I am using the "Method Call in Used Controller" of WD Code wizard to call the function module.
When the event handler method containing the call to the function module is executed, nothing happens.
I am not sure how to pass values to the function module and to get the return values from the function module.
I am new to using function modules from WDA. Please help me out.
Thanks and Regards.

Rashmi,
Is the function module intended to collect input data from the UI and process it? - Yes
If yes, then the input (importing parameter) to the Function Module is a table of values (which should be ideally from the context mapped to the Table UI Element). - The importing parameter is a single value NOT a table and is mapped to the view context.
Now this table UI Element is bound to the view controller context , which in turn is mapped to the component controller context. And you are indeed being able to read the value of this internal table in the component controller method where the function module is being called by means of get_static_attributes_table (Is this right? - Yes, I am able to read the table of values that is passed from the component controller view to form view context by using get_static_attributes_table.
Or are you being able to read it in the event handler method of the view controller and not being able to read it in the component controller method) -
The function module takes a single value as import parameter and returns a table of values as return value.
It works fine when no importing parameter is being used and returns the table of values that is getting passed from component controller context to form view context when i am able to read it using get_static_attributes_table.
Now the question is: how to pass the import parameter value to the function module. I assumed since the importing parameter is a context node (like the return values are), i should set the value ( captured when the user enters the value in the form) to the importing parameter context attribute using set_attribute method. Since it is mapped to the component controller context, i assumed it will get passed and the method will take it as input parameter.
Let me know if my assumptions are correct regarding passing the import parameters and what is missing here.
Thanks and Regards.

Remote Object - not able to get the returned value from java method

     Hi ,
I am developing one sample flex aplication that connects to the java code and displays the returned value from the
java method in flex client. Here I am able to invoke the java method but not able to collect the returned value.
lastResult is giving null . I am able to see the sysout messages in server console.
I am using flex 3.2 and blazeds server and java 1.5
Here is the code what I have written.
<?xml version="1.0" encoding="utf-8"?><mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" backgroundColor="#FFFFFF" initialize="initApp()">
<mx:Script><![CDATA[
import mx.controls.Alert;
import mx.binding.utils.ChangeWatcher;
import mx.rpc.events.ResultEvent;
import mx.messaging.*;
import mx.messaging.channels.*
public function initApp():void {
     var cs:ChannelSet = new ChannelSet();
     var customChannel:Channel = new AMFChannel("my-amf", "http://localhost:8400/blazeds/messagebroker/amf");     cs.addChannel(customChannel);
     remoteObj.channelSet = cs;
public function writeToConsole():void {      remoteObj.writeToConsole(
"hello from Flash client");
      var returnedVal:String = remoteObj.setName().lastResult;     Alert.show(returnedVal);
//[Bindable]
// private var returnedVal:String;
]]>
</mx:Script>
<mx:RemoteObject id="remoteObj" destination="sro" />
<mx:Form width="437" height="281">
<mx:FormItem>
</mx:FormItem>
<mx:Button label="Write To Server Console" click="writeToConsole()"/>
</mx:Form>
</mx:WindowedApplication>
Java code
public
     public SimpleRemoteObject(){
          super();     }
class SimpleRemoteObject {
     public void writeToConsole(String msg) {          System.out.println("SimpleRemoteObject.write: " + msg);     }
     public String setName(){          System.
out.println("Name changed in Java");
          return "Name changed in Java";
And I have configured destination in remote-config.xml
<destination id="sro">
   <properties>
    <source>SimpleRemoteObject</source>
    <scope>application</scope>
   </properties>
</destination>
Please help me .

You are not able to get the returned value because if you see the Remote object help you will realise you have to use result="resultfn()" and fault = "faultfn()"
In this you define what you wish to do.
More importantly in the remote object you need to define which method you wish to call using the method class like this
<mx:RemoteObject id="remoteObj" destination="sro" result="r1" fault="f1" >
     <Method name="javaMethodName" result="r2" fault="f2"/>
<mx:RemoteObject>
r2 is the function where you get the result back from java and can use it to send the alert.

How to get return value from java and read by other application?

i want to read return value from java and the other application read it.
for example:
public class test_return {
    test_return(){
    public int check(){
        return 1;
    public static void main(String args[]){
       new test_return().check();
}from that class i make as jar file. How to read the return value (1) by other application?
thx..

If your installer is requiring some process it invokes to return a particular value on failure, then the installer is seriously broken. There are a bazillion commands your installer could invoke, and any of them could fail, which in turn could invalidate the entire install process, and any of them could return any value on failure. The only value that's consistent (in my experience) is that zero means success and non-zero means failure, with specific non-zero values being different in different programs.
About the only control you have over the JVM's exit code is that if your main method completes without throwing an exception, the JVM will have an exit code of 0, and if main throws an exception (either explicitly or by not catching one thrown from below), it will be non-zero. I'm not even sure if that's guaranteed, but I would guess that's the case.
EDIT: I'm kind of full of crap here. If you're writing the Java code, you can call System.exit(whatever). But nonetheless, if your installer requires certain exit codes from any app--java or otherwise--you have a problem.
Edited by: jverd on Oct 29, 2009 1:27 AM

How to get return value from Java runtime.getRuntime.exec?

I'm running shell commands from an Oracle db (11gr2) on aix.
But, I would like to get a return value from a shell comand... like you get with "echo $?"
I use a code like
CREATE OR REPLACE JAVA SOURCE NAMED common."Host" AS
import java.io.*;
public class Host {
public static int executeCommand(String command) {
    int retval=0;
    try {
        String[] finalCommand;
        finalCommand = new String[3];
        finalCommand[0] = "/bin/sh";
        finalCommand[1] = "-c";
        finalCommand[2] = command;
      final Process pr = Runtime.getRuntime().exec(finalCommand);
      pr.waitFor();
   catch (Exception ex) {
      System.out.println(ex.getLocalizedMessage());
      retval=-1;
    return retval;
/but I do not get a return value... because I don't know how to get return value..
Edited by: user9158455 on 22-Sep-2010 07:33

Hi,
Have your tried pr.exitValue() ?
I think you also need a finally block that destroys the subprocess
Regards
Peter

Error getting return value from function

Hello
I'm getting a error calling a function with ODP.NET from C#
Code:
OracleCommand oraCom = new OracleCommand("NORMALIZACION.nif",oraCon);
oraCom.CommandType = CommandType.StoredProcedure;
OracleParameter param1 = new OracleParameter("numnif",OracleDbType.Varchar2);
param1.Value= "73667866A";
param1.Direction = ParameterDirection.Input;
OracleParameter param2 = new OracleParameter("nif",OracleDbType.Varchar2);
param2.Size = 10; //FIXME line
param2.Direction = ParameterDirection.ReturnValue;
oraCom.Parameters.Add(param1);
oraCom.Parameters.Add(param2);
oraCom.ExecuteNonQuery();
nif_norm = oraCom.Parameters["nif"].Value.ToString();
if i write the FIXME line i get a error (ORA-06502) complaining about the size, no matter the value i wrote.
If i don't write the FIXME line, it works but nif_norm is always empty, although the function i call is a single return 'Hello';
Where am I wrong??
Any help, examples with varchar2 as return value???
BTW: the same code with the MS provider for Oracle works fine.

Good point -- i shall do so.
What I think I'm missing, in my quest for ODP.NET competence, is a solid set of example code. I've searched around and found various fragements here and there, but when it comes to data access from .NET there must surely be some finitie set of possibilities (if we can discount bad practices like building dynamic SQL statements without bind variables).
For example, possibly in increasing order of complexity ...
* Read a single value from a SQL statement ... "select emp_name from emp where rownum < 2"
* Read a single value by passing in a parameter ... "select emp_name from emp where user_id = :?"
* read multiple values ... "select emp_name from emp where user_id in (:?,:?)"
* execute a stored procedure with no in or out parameters
* retreive a value from a function with no parameters
* pass a parameter to a stored procedure
* read an out parameter from a stored procedure
Then work with in and out ref cursors, blobs, whatever.
Thoughts?

How to return more than one value from a function

hello everybody,
Can anyone tell me how to return more than a single value from a function, the problem is i have 4 points,
2 points form one line ,another 2 points form 2nd line ,each point is 3 dimensional(x,y,z coorinates) so i will pass these values to func(x1,y1,z1,x2,y2,z2,x3,y3,z3,x4,y4,z4), i will find the point of intersecton of two lines and i will get it as x,y,z , now how to return these 3 coordinates,usually the function returns only one value, please help me to solve it out.
Thanks.

I think the easiest way or trick here is (easiest isn't always the best as we know, but atleast this one will work) to create simple data array. and pass that. Create an array with:
<code>
class justArray {
int x=0
int y=0;
int z= 0;
...somewhere
justArray[] points= new justArray[4];
points[0].x= ..
points[0].y= ..
points[0].z= ..
points[1].x= ..
return points[]
</code>

Problem loading images from a return value of a function

hello, I write because I uin problem in loading images from a return value of a function.
I created a database with a field "image" of type string, where I put the physical address of the image. I have written like this: {__DIR__ }foto.jpg
Place the code, so you understand better
function imageViewImage(): javafx.scene.image.Image {
connetti();
lass.forName(driverName);
con = DriverManager.getConnection(url,user,"");
stmt = con.createStatement();
var richiesta:String = "SELECT image from viaggio WHERE id_viaggio=7";
rs1 = stmt.executeQuery(richiesta);
var result :String;
rs1.next();
risultato = rs1.getString("image");
JOptionPane.showMessageDialog(null, result);
var imagez = Image{
url:"{result}";
return imagez;
The image is in the source code package
First I connect to the database, run the query and I take the contents of the image.
Can anyone help me?
Is right to put in the database {__DIR__} foto.jpg or do I put only foto.jpg?

Hello unkus_nob,
I would rather suggest you to save only filename of that image like "foto.jpg" in database. And just concat it with the String variable containing "{__DIR__}".
Actually the javafx compiler converts the {__DIR__} to the existing class directory path something like : "jar:file:/..../".
var currentDir ="{__DIR__}";
risultato = "{currentDir}{rs1.getString("immagine"})";
var image = Image{
url:risultato
return image;--NARAYAN G.

Returning Values from Methods

We ran across some code in one of our classes that calls a private method. That method returns an object, but the code calling that method does not capture it. What happens to the return value in a case like this? I would have thought that to be a syntax error.
Example:
myMethod(myObject, i); // Call to myMethod without capturing its return value.
private myObject myMethod(MyObject myObject, int i) {
return myObject;
}What happens to the return value from myMethod?

(void) f(arg1, ..., argN); There's no
provision in Java to allow you express that same
intention.
What?!?!?public void f(arg1, ...,
argN);
In the C code, function f was defined as having a non-void return type.
The statement
(void) f(arg1, ..., argN);shows the caller is knowing ignoring that returned value.

RE: (forte-users) Reading return value from Javaprogram

when using the RunCommand method you can specify the an error file:
task.part.os.RunCommand(command = l_tdCommandLine,
isSynchronous = TRUE,
inputFile = Nil,
outputFile = Nil,
errorFile = l_ErrorFile.GetLocalName(TRUE));
BEGIN
l_ErrorFile.Open(SP_AM_READ);
EXCEPTION
WHEN Ex: FileResourceException DO
l_ErrorFile = NIL;
task.ErrorMgr.Clear();
END;
IF l_ErrorFile <> NIL THEN
l_tdFileContents : TextData = New();
l_ErrorFile.ReadText(l_tdFileContents);
l_ErrorFile.Close();
END IF;
Have you java program output the return value to the standard IO. This way
you will have an error file that you can read from Forte.
ka
-----Original Message-----
From: Anthony D [mailto:saigonxyahoo.com]
Sent: Tuesday, September 12, 2000 7:49 AM
To: forte-userslists.xpedior.com
Subject: (forte-users) Reading return value from Java program
Hi,
Does anyone know whether Forte application can
read a return value from a Java program?
I'm using the RunCmd method to invoke the Java
program. I'd like to read the return value from the
Java program. How do I go about doing it?
Any suggestion will be appriciated.
Thanks
AD
http://mail.yahoo.com/
For the archives, go to: http://lists.xpedior.com/forte-users and use
the login: forte and the password: archive. To unsubscribe, send in a new
email the word: 'Unsubscribe' to: forte-users-requestlists.xpedior.com

when using the RunCommand method you can specify the an error file:
task.part.os.RunCommand(command = l_tdCommandLine,
isSynchronous = TRUE,
inputFile = Nil,
outputFile = Nil,
errorFile = l_ErrorFile.GetLocalName(TRUE));
BEGIN
l_ErrorFile.Open(SP_AM_READ);
EXCEPTION
WHEN Ex: FileResourceException DO
l_ErrorFile = NIL;
task.ErrorMgr.Clear();
END;
IF l_ErrorFile <> NIL THEN
l_tdFileContents : TextData = New();
l_ErrorFile.ReadText(l_tdFileContents);
l_ErrorFile.Close();
END IF;
Have you java program output the return value to the standard IO. This way
you will have an error file that you can read from Forte.
ka
-----Original Message-----
From: Anthony D [mailto:saigonxyahoo.com]
Sent: Tuesday, September 12, 2000 7:49 AM
To: forte-userslists.xpedior.com
Subject: (forte-users) Reading return value from Java program
Hi,
Does anyone know whether Forte application can
read a return value from a Java program?
I'm using the RunCmd method to invoke the Java
program. I'd like to read the return value from the
Java program. How do I go about doing it?
Any suggestion will be appriciated.
Thanks
AD
http://mail.yahoo.com/
For the archives, go to: http://lists.xpedior.com/forte-users and use
the login: forte and the password: archive. To unsubscribe, send in a new
email the word: 'Unsubscribe' to: forte-users-requestlists.xpedior.com

How to get the return values from a web page

Hi all :
how to get the return values from a web page ? I mean how pass values betwen webflow and web page ?
thank you very much
Edited by: jingying Sony on Apr 15, 2010 6:15 AM
Edited by: jingying Sony on Apr 15, 2010 6:18 AM

Hi,
What kind of web page do you have? Do you have possibility to for example make RFCs? Then you could trigger events (with parameters that could "return" the values) and the workflow could react to those events. For example your task can have terminating events.
Regards,
Karri

How to get return values from stored procedure to ssis packge?

Hi,
I need returnn values from my stored procedure to ssis package -
My procedure look like and ssis package .Kindly help me to oget returnn value to my ssis package
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author: <Author,,Name>
-- Create date: <Create Date,,>
-- Description: <Description,,>
-- =============================================
ALTER PROCEDURE [TSC]
-- Add the parameters for the stored procedure here
@P_STAGE VARCHAR(2000)
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
-- Insert statements for procedure here
--SELECT <@Param1, sysname, @p1>, <@Param2, sysname, @p2>
truncate table [INPUTS];
INSERT
INTO
[INPUTS_BASE]
SELECT
[COLUMN]
FROM [INPUTS];
RETURN
END
and i am trying to get the return value from execute sql task and shown below
and i am taking my returnn value to result set variable

You need to have either OUTPUT parameters or use RETURN statement to return a value in stored procedures. RETURN can only return integer values whereas OUTPUT parameters can be of any type
First modify your procedure to define return value or OUTPUT parameter based on requirement
for details see
http://www.sqlteam.com/article/stored-procedures-returning-data
Once that is done in SSIS call sp from Execute SQL Task and in parameter mapping tabe shown above add required parameters and map them to variables created in SSIS and select Direction as Output or Return Value based on what option you used in your
procedure.
Please Mark This As Answer if it helps to solve the issue Visakh ---------------------------- http://visakhm.blogspot.com/ https://www.facebook.com/VmBlogs

Returning values from JNI functions to Java

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