Is it possible to use iFS API within java stored procedure?

question:
is it possible to use the iFS API for file handling
within a java stored procedure (which is invoced by a trigger)?
is there an "elegant" workaround if it is not possible?
problem:
my java code using the iFS API works fine outside
the java stored procedure
but invoked via trigger as java stored procedure
it throws following exception:
IFS-20102: Unable to start service (IfsDefault)
i am using:
oracle 9.0.1
oracle internet file system 9.0.1.1.0
windows 2000
thanks

thanks for your help
i looked through the applications developers guide
the basics behind advanced queueing (as far as i understand) is:
program A inserts a message into the queue - and program B gets message from the queue and processes it
question 1:
but what is the difference between advanced queuing and a queue i create by myself
(simply with a database table) and let application B (which runs in a loop)
check if the queue is filled
or am i missing something important which makes advanced queuing more practicable for my problem?
question 2:
you wrote about advanced queuing support in iFS 9.0.3, but the newest version i found was iFS 9.0.2
did you reffer to the advanced queuing mechanism in general or to a spezial queuing feature in iFS 9.0.3?
thanks

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Java Print Service API in Java Stored Procedure (Linux)

Hi
We are running an Oracle 10g database on Linux and I am in the proces of developing a java stored procedure which should utilize the Java Print Service API.
I have made a simple stored procedure to list all available printers and the DocFlavors they support (se the code below).
My problem is that no printers are listed. I have made a standalone java app. with the same code and executed it directly on the OS level of the Linux box through the Sun JDK 1.4.2 and here I get two printers.
Is there any specific configuration I need to do to make it work?
I am wondering if I need to grant specific authorisations through dbms_java for it to work...?
Any help is greatlyh appreciated.
************************************** CODE BEGIN *************************************
import javax.print.DocFlavor;
import javax.print.PrintService;
import javax.print.PrintServiceLookup;
import javax.print.attribute.HashPrintRequestAttributeSet;
import javax.print.attribute.PrintRequestAttributeSet;
public class TestPrintService {
public TestPrintService() {
public static void listPrinters() {
// Get all available printers and their supported DocFlavors
PrintService[] pservices =
PrintServiceLookup.lookupPrintServices(null, null);
System.out.println("Printer services: " + pservices.length);
for (int i = 0; i < pservices.length; i++) {
PrintService pservice = pservices;
System.err.println("Printer: " + pservice);
DocFlavor[] docFlavors = pservice.getSupportedDocFlavors();
for (int j = 0; j < docFlavors.length; j++) {
DocFlavor docFlavor = docFlavors[j];
System.err.println("DocFlavor " + docFlavor.toString());
System.err.println();
************************************** CODE END *************************************
Cheers,
Jacob Vennervald

Found this on Oracle support:
Cannot List Available Printers From The Database Using A Java Stored Procedure [ID 372694.1]
Applies to:
Oracle Server - Enterprise Edition - Version: 10.1.0.4.0
This problem can occur on any platform.
Symptoms
Able to list available printers on a machine when running Java code outside the Database.
When running the same Java code inside the Database as a Java Stored Procedure, no printers are found.
Cause
Due to security restrictions, this is expected results.
The Java Docs state:
"Services which are registered by registerService(PrintService) will not be included in lookup
results if a security manager is installed and its CheckPrintJobAccess() method denies access."
Also from the documentation it states:
"A PrintServiceLookup implementor is recommended to check for the SecurityManager.checkPrintJobAccess() to deny access to untrusted code. Following this recommended policy means that untrusted code may not be able to locate any print services. Downloaded applets are the most common example of untrusted code."
Using the checkPrintJobAccess(); call, it does produce a Security Exception when run inside the Database but not when run outside. The exception can be viewed within the log file found in the UDUMP directory.
Solution
Run the following code to confirm obtaining available __printers can not be done...__
This is the code to create the Java Stored Procedure
CREATE OR REPLACE AND RESOLVE JAVA SOURCE NAMED "ListPrinters" AS
import javax.print.*;
public class ListPrinters {
public static String AvailablePrinters(){
String strList;
PrintService[] pservices =PrintServiceLookup.lookupPrintServices(null,null);
if (pservices.length > 0 )
strList = pservices[0].getName();
else
strList = "No printers found";
return strList;
public static String listprinters() throws Exception {
String listofprinters;
try {
SecurityManager sm = System.getSecurityManager();
if (sm != null) sm.checkPrintJobAccess();
catch (SecurityException ex) {
System.err.println("Sorry. Printing is not allowed.");
listofprinters = AvailablePrinters();
return listofprinters;
This is the PL/SQL Wrapper
CREATE OR REPLACE FUNCTION Get_Printer_Test RETURN VARCHAR2 IS
LANGUAGE JAVA
NAME 'ListPrinters.listprinters() return String';
This executes the code
SQL> SELECT Get_Printer_Test FROM DUAL;
GET_PRINTER_TEST
No printers found
This is the output found in the trace file in the UDUMP directory
*** SESSION ID:(144.28) 2006-07-08 09:02:25.518
Sorry. Printing is not allowed.

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Hi there i am currently trying to develope a java
stored procedure and place it in oracle and will try
to use that procedure to send a message to a server
but then it doesnt seems to work. is it possible?And what do you do with exceptions in your java proc?
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Using XMLType in a Java Stored Procedure

I have the following piece of java test code that attempts to read an XMLType object from the database. When I run this client side, using either the oci or thin driver it works fine. When I run the same code as a java stored procedure I get the exception shown below.
(The problem was first seen on 9.2.0.3/Win2K. Ive patched to 9.2.0.4 and am still getting the same error)
Can anybody please help?
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Java Test Code:
===============
import java.sql.*;
import oracle.sql.*;
import oracle.jdbc.*;
import oracle.xdb.*;
public class Test {
public static void main(String[] args) throws Exception {
System.out.println(run());
public static String run() throws Exception {
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
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// client side THIN
//Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:ORACLE", "scott", "tiger");
// server side
Connection conn = DriverManager.getConnection("jdbc:default:connection");
OracleCallableStatement stmt = (OracleCallableStatement)conn.prepareCall("{? = call XDBUriType('/test.xml').getXML()}");
stmt.registerOutParameter (1, OracleTypes.OPAQUE,"SYS.XMLTYPE");
stmt.execute();
XMLType xml = XMLType.createXML(stmt.getOPAQUE(1));
return xml.getStringVal();
SQLPLUS TRACE:
==============
SQL> VARIABLE res VARCHAR2(4000);
SQL> call run() into :res;
call run() into :res
ERROR at line 1:
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java.lang.Exception: Unimplemented Feature
Dump File:
==========
Dump file c:\oracle9i\admin\oracle\udump\oracle_ora_4964.trc
Fri Oct 24 12:04:30 2003
ORACLE V9.2.0.3.0 - Production vsnsta=0
vsnsql=12 vsnxtr=3
Windows 2000 Version 5.0 Service Pack 4, CPU type 586
Personal Oracle9i Release 9.2.0.3.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.3.0 - Production
Windows 2000 Version 5.0 Service Pack 4, CPU type 586
Instance name: oracle
Redo thread mounted by this instance: 1
Oracle process number: 12
Windows thread id: 4964, image: ORACLE.EXE
*** 2003-10-24 12:04:30.000
*** SESSION ID:(10.121) 2003-10-24 12:04:30.000
java.lang.Exception: Unimplemented Feature
at oracle.xdb.spi.XDBContext.getServerEnv(XDBContext.java)
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at oracle.xdb.XMLType.<init>(XMLType.java:846)
at oracle.xdb.XMLType.createXML(XMLType.java:469)
at cms.Test.run(Test.java:27)

I have the very same problem. Somebody from Oracle Corp please reply. If this is a bug, please do not let us waste time to research a solution. Otherwise, point a way out!
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How to use directory alias in Java stored procedure ?

hi everyone !
I want use Directory alias in Java strored procedure
I 'hv created dir alias as
Create Directory BFILE_DIR AS 'C:\MyImages'
my java statements -
myfile="C:\MyImages\myPH01.jpg"
File binaryFile = new File(myFile);
instead of giving absolute path I want give directory alias BFILE_DIR
myfile= BFILE_DIR + "myPH01.jpg"
File binaryFile = new File(myFile);
can anyone pl suugest how should I write this in Java procedure
thanks
SPD

hi everyone !
I want use Directory alias in Java strored procedure
I 'hv created dir alias as
Create Directory BFILE_DIR AS 'C:\MyImages'
my java statements -
myfile="C:\MyImages\myPH01.jpg"
File binaryFile = new File(myFile);
instead of giving absolute path I want give directory alias BFILE_DIR
myfile= BFILE_DIR + "myPH01.jpg"
File binaryFile = new File(myFile);
can anyone pl suugest how should I write this in Java procedure
thanks
SPD

Can I use log4j with a java stored procedure

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Hi Laura,
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null

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show errors
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show errors
CREATE OR REPLACE PACKAGE BODY UTIL IS
function run(lpCmdLine IN varchar2, nCmdShow IN binary_integer) return binary_integer
AS EXTERNAL
NAME "WinExec"
LIBRARY kernellib
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end;
show errors
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Is it possible to make a call to java stored procedure using RMI. ?
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<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Thomas Grounds ([email protected]):
Is it possible to make a call to java stored procedure using RMI. ?
In principle it is possible. See the Java-Doc.s of Oracle 8.1.6.
I have successful granted the java.net.SocketPermissions in my USER_JAVA_POLICY view (see Doc.) Now I was able to use the RMI-Sockets, but following
failure try to connect to RMI-Object via RMIregistry an Oracle Error occurs
ORA-03113: end-of-file on communication channel
and after that my Oracle Connection is closed.
How can I run the RMI registry on the Oracle Server ?<HR></BLOCKQUOTE>
I think you do not need the RMI registry on Oracle Server. It should be possible to start the RMI registry wherever you want in your network and access it via the right registry string.
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null

How to use a Java Thread in a Java Stored Procedure?

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Is it possible to use a Script within an action? - it doesn't seem to work...

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Good afternoon everyone
Our development team is looking for some assistance/validation of a design strategy we are deploying for a client. Let me first layout the environment and then the design issue at hand:
Business User Workstation component: Oracle SQL*Developer 1.5.x
Reporting Tool: Actuate e.Spreadsheet A10
Application Web UI: J2EE application developed with Eclipse
Application Scripting: Application has a scripting component whereby business users can write Oracle PL/SQL to perform many of the functions that are available in the Web UI, but can be batched up or repeated several times.
Application Server WebLogic 9.2.3 (client constraint)
Database Serve: Oracle 11g, Release 11.1.0.7
Lots of other stuff included but irrelevant for this conversation.
Here's the scenario in question:
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For any Oracle employees that respond, material such as Oracle Whitepapers, etc. would be great.
I can be contacted at (313) 227-4350 or at [email protected]
Thanks in advance.

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Is it possible to use iFS API within java stored procedure?

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