Is it possible to call a java control upon server startup

I have a java control that creates business rules for validation of files submitted by users. This control
makes many calls to db controls and performs a lot of
fetch operations . Is it possible to invoke this control
upon server startup and cache the results

In the current release(8.1), calling controls from a plain Java class is not supported. Controls can only be invoked from a any one of the following Workshop components JWS/JPD/JPFs/or another control.
Hope this helps.
Raj Alagumalai

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is it possible to call bls transaction on MII server startup?
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The LoadLibrary() Win32 call is used to find the physical DLL and load it into memory. This API call first look in the current directory for the file, and then uses the PATH environmental variable to try and find the file.
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You can try using the exec method in the class java.lang.Runtime, but here are some traps to watch out for when using it:
http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html

Is it possible to call a java method from servlet

Hi All,
I am trying to import a java class to my servlet and call a method of that class, is this possible. I am getting an error while importing the class.
I am using tomcat, have put my class files in th path
\WEB-INF\classes\com\kiran
My java goes like this
package com.kiran;
import java.sql.*;
import javax.sql.*;
public class DbCon
{ Connection con=null;
public Connection getCon()
-----return con;
catch(Exception e){ return con; }
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package com.kiran;
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import javax.servlet.http.*;
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http://otn.oracle.com/tech/java/jsp/pdf/developing_o8i_apps_with_plsql_and_java_twp.pdf
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http://otn.oracle.com/sample_code/tech/java/jsp/oracle9ijsp.html
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Call Client Java Proxy from Server Java Proxy

Hi Gurus!!
I'm trying to call a Client Java Proxy from a Server Java Proxy.
Is possible to do this? I think must be possible.
I have called this Client Java Proxy from another application, and run ok.
I have tried to call it following the Guide to call Java Client Proxies:
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                es.navantia.xi.mm.dispositivosRobotizadosKasto.MIRobotOut_PortTypeRemote queryOutRemote = null;
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                     Object ref = ctx.lookup("RobotOut");
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                    try {
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                          (MIRobotOut_PortTypeHome) PortableRemoteObject.narrow(
                               ref,
                               MIRobotOut_PortTypeHome.class);
                    } catch (Exception e) {
                         throw new RuntimeException(e + "1");
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                } catch (Exception e) {
                    throw new RuntimeException(e + "2");
but I get this error
"com.sap.aii.af.ra.ms.api.DeliveryException: Error invoking method mIRobotIn of proxy bean $Proxy351: es.navantia.xi.mm.dispositivosRobotizadosKasto.MIRobotOut_PortTypeHome: com.sap.aii.proxy.xiruntime.core.XmlInboundException: Error invoking method mIRobotIn of proxy bean $Proxy351: es.navantia.xi.mm.dispositivosRobotizadosKasto.MIRobotOut_PortTypeHome"
es.navantia.xi.mm.dispositivosRobotizadosKasto.MIRobotOut_PortTypeHome is the corresponding PortTypeHome to the Client Java Proxy.
I have tried to call too calling directly from the server Java Proxy to the method correcponding to the Client Java Proxy. The error I get is:
"com.sap.aii.af.ra.ms.api.DeliveryException: Error invoking method mIRobotIn of proxy bean $Proxy351: es/navantia/xi/mm/dispositivosRobotizadosKasto/DTRobot_Type: com.sap.aii.proxy.xiruntime.core.XmlInboundException: Error invoking method mIRobotIn of proxy bean $Proxy351: es/navantia/xi/mm/dispositivosRobotizadosKasto/DTRobot_Type"
Tha call to the client is:
es.navantia.xi.mm.dispositivosRobotizadosKasto.MIRobotOut_PortType clase = null;
es.navantia.xi.mm.dispositivosRobotizadosKasto.DTRobot_Type client_req = null;
es.navantia.xi.mm.dispositivosRobotizadosKasto.DTRobotResponse_Type client_res = null;
client_res = clase.mIRobotOut(client_req);
Please, any help will be useful.
Thanks and regards,
Manuel Míguez.

Hi,
Now I get another error message:
com.sap.aii.af.ra.ms.api.DeliveryException: Error invoking method mIRobotIn of proxy bean $Proxy351: es/navantia/xi/mm/dispositivosRobotizadosKasto/MITextoOut_PortTypeRemote: com.sap.aii.proxy.xiruntime.core.XmlInboundException: Error invoking method mIRobotIn of proxy bean $Proxy351: es/navantia/xi/mm/dispositivosRobotizadosKasto/MITextoOut_PortTypeRemote
Now, my source is:
MITextoOut_PortTypeHome queryOutHome = null;
MITextoOut_PortTypeRemote queryOutRemote = null;
try {
//     Get naming context
Context ctx = new InitialContext();
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Object ref = ctx.lookup("java:comp/env/ejb/TextoOut");
// Object ref = ctx.lookup("java:comp/env/ejb/MITextoOut_PortTypeBean");
//     Cast to Home interface
     queryOutHome = (MITextoOut_PortTypeHome)
PortableRemoteObject.narrow(ref,
MITextoOut_PortTypeHome.class);
//     Get Remote interface
queryOutRemote = queryOutHome.create();
} catch (Exception e) {
System.out.println("RemoteException occurred: "+e.getMessage());
e.printStackTrace();
//return;
try {
      queryOutRemote.$messageSpecifier();
} catch (RemoteException e2) {
      // TODO Auto-generated catch block
      e2.printStackTrace();
DTTexto_Type Texto_type = new DTTexto_Type();
Texto_type.setTexto(req_texto);
DTTextoResponse_Type Texto_response = new DTTextoResponse_Type();
try {
     Texto_response = queryOutRemote.mITextoOut(Texto_type);
} catch (SystemFaultException e1) {
      // TODO Auto-generated catch block
      e1.printStackTrace();
} catch (ApplicationFaultException e1) {
      // TODO Auto-generated catch block
      e1.printStackTrace();
} catch (RemoteException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
I have tryed removing queryOutRemote.$messageSpecifier() and I get the error:
com.sap.aii.af.ra.ms.api.DeliveryException: Error invoking method mIRobotIn of proxy bean $Proxy351: es/navantia/xi/mm/dispositivosRobotizadosKasto/DTTexto_Type: com.sap.aii.proxy.xiruntime.core.XmlInboundException: Error invoking method mIRobotIn of proxy bean $Proxy351: es/navantia/xi/mm/dispositivosRobotizadosKasto/DTTexto_Type
Somebody knows what could be the cause of these errors?
Thanks and regards,
Manuel.

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Hello,
I am using Java Studio Enterprise 8 with JSAS 8.1.
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HI
Is it possible to call a Java program in OWB_902560.
If so how ...Pls. advice me..
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Narasimha.

You can call PL/SQL programs from OWB either by defining transformations or as expressions. From PL/SQL you can call a java stored procedures in the database as follows:
1. Define the java stored procedure. For example, let's suppose that you store the following Java class in the database:
import java.sql.*;
import oracle.jdbc.driver.*;
public class Adjuster {
public static void raiseSalary (int empNo, float percent)
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String sql = "UPDATE emp SET sal = sal * ? WHERE empno = ?";
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PreparedStatement pstmt = conn.prepareStatement(sql);
pstmt.setFloat(1, (1 + percent / 100));
pstmt.setInt(2, empNo);
pstmt.executeUpdate();
pstmt.close();
} catch (SQLException e) {System.err.println(e.getMessage());}
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AS LANGUAGE JAVA
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Hi,
Previous explanation i gave is not correct.
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Can I call a Java program from a SQL Server Trigger?

Hello,
I want to encrypt some data in a database column in SQL Server. Today I am using java code to encrypt the value and store it in the database using JDBC.
Now I want to use a VB client to store the encrypted value in the SQL Server DB. Since the encryption is handled by a java class, can I write a trigger in SQL Server that while inserting the raw data, calls the java class for encrypting the value and then inserts the encrypted value into the column?
In general, is it possible to call a java class from a SQL Server trigger?
Thanks
Bipin

Here are 3 examples of code for insert, update and delete:
CREATE TRIGGER [PLI_INSERT_TRIGGER] ON [dbo].[PLI]
FOR INSERT
AS
Declare @cmd sysname, @code sysname, @list sysname
     Select @code = PLI_K_COD, @list = PLI_K_LISTINO from inserted
     Set @cmd = 'java mirrorDb.Copy PLI INSERT ' + @code + ' ' + @list
     EXEC master..xp_cmdshell @cmd
CREATE TRIGGER [PLI_UPDATE_TRIGGER] ON [dbo].[PLI]
FOR UPDATE
AS
Declare @cmd sysname, @code sysname, @list sysname
     Select @code = PLI_K_COD, @list = PLI_K_LISTINO from inserted
     Set @cmd = 'java mirrorDb.Copy PLI UPDATE ' + @code + ' ' + @list
     EXEC master..xp_cmdshell @cmd
CREATE TRIGGER [PLI_DELETE_TRIGGER] ON [dbo].[PLI]
FOR DELETE
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     EXEC master..xp_cmdshell @cmd
you must go "sql server entreprise manager" right click on the table you want to add triggers and select: all activities, manage triggers.
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ON [dbo].[PLI] specify the table on which you want to setup trigger.
FOR DELETE, INSERT, UPDATE specify the event.
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the "Select @code = PLI_K_COD, @list = PLI_K_LISTINO from inserted" set the variables with the value of the columns of the table I am interested to read from my java program, for example the variable @code receive the value of the column pli_k_kod (is the key) of the table PLI.
The "Set @cmd = 'java mirrorDb.Copy PLI DELETE ' + @code + ' ' + @list " prepared the variable @cmd with the java command followed by the package.classname and parameters.
The EXEC launch the command to the operating system.
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Java Controls, JSPs, Servlets and Filters

Hi, everybody.
How can i invoke a custom java control from a JSP ?
How can i invoke a custom java control from a Servlet or Filter ?
I've tried using WlwProxy.create(controlInterfaceClass, request) but i don't know if this is the "official and recommended" way of do it. By the way, invocation is falling because Workshop is trying to find a .jcx file (i have only a .jcs).
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Hi Vimala.
All the business logic of my project will be implemented as Java Controls (that's the reason of my questions about Controls' accessibility):
1. From a JSP
A) I can use netui tag <netui-data:callControl>
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2. From init method of a startup Servlet
I can't call a Java Control from here. Can i implement analogous feature using Builtin Timer Control ?
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I can call a page flow to execute Java Control and to populate http request (or session) within some Java Beans. After this, the Servlet will "consume" these Java Beans.
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I'm accepting any suggestion (official or "unofficial") about how to make this easier.
Thanks !!!
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        HttpServletRequestWrapper newRequest =
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            RequestDispatcher dispatcher = this.request
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            /* include doesn't work (.jpf ?) */
            dispatcher.forward(newRequest, newResponse);
            invocationData = (InvocationData) newRequest
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            if (invocationData.getException() != null) {
                throw invocationData.getException();
            } else {
                if (invocationData.getReturnValue() != null) {
                    result = invocationData.getReturnValue();
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                                           + InvocationData.ATT_NAME + ".");
    Control targetControl = (Control) this.controlMap.get(invocationData
                                                          .getTarget());
    if (targetControl == null) {
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    try {
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                                           .getParameters());
        invocationData.setReturnValue(returnValue);
    } catch (IllegalArgumentException e) {
        LOG.error("Could not invoke method", e);
        throw new UnhandledException(e);
    } catch (IllegalAccessException e) {
        LOG.error("Could not invoke method", e);
        throw new UnhandledException(e);
    } catch (InvocationTargetException e) {
        LOG.debug("An error has ocurred when invoking method", e);
        invocationData.setException(e.getCause());
    request.setAttribute(InvocationData.ATT_NAME, invocationData);
}

Call a java function on retrieval

Hi,
Is it possible to call a java function on retrieval from a member formula or may be business rule. Will it be more efficient than the member formula itself ? Currently our member formula on dynamic member is timing out.
It'll be nice if you could point me towards some material to read on and experiment.
Any pointers will be helpful.
Thanks.

>> if I'm wrong but this CRC will work only if my data is in database tables
    Data dynamically retrieved from Essbase VIA APS with using MDX queries
>>dynamic calc member is retrieving and calculation data from the planning cube itself.
No . It ONLY for stored member.
I need reduce using DCALC
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Just now i don have any detailed document for this. But
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   2) You need advanced PL-SQL experience for using it

Calling a java webdynpro component inside a SAP Workflow

Hi Experts ,
Is it possible to call a java webdynpro component inside a SAP Workflow from the task .
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Regards
Sarmistha

Someone has posted this, Take a look if it helps you:
"1. Activate your service in transaction SICF;
2. Activate the WS_HANDLER in SICF (probably you have to do more in SICF, SAP notes will be given to you in your browser when you want to call the service);
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6. Generate a task from your defined service in WF_EXTSRV;
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8. Test your workflow. Here you probably get some errror messages that the service cannot be called by for instance inactive ICF services. Activate the correct paths in transaction SICF."
Regards, IA
<MODERATOR: For reference, that 'Someone' was Joost in [this thread|Re: Callback from WebDynpro to Workflow]>
Edited by: Mike Pokraka on Jun 19, 2008 4:52 PM

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Hi there,
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If possible where to find some sample code or material?
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Thank you for you great answer. it is clear and helpful.
but I am not very good at database. I still have question on "databaseLink".
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In your code:
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I will spend some time on Oracle to try to fully understand it.
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Is it possible to call a java control upon server startup

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