I want to access that BEA instance variable inside of a external java class

Hi,
This is N.pradeep. I am a java programmer, and I am new to BEA AquaLogic BPM studio5.7. I have a question regarding how to retrieve an instance variable of BEA Aqua Logic to an external Java Program. i.e. I want to access that BEA instance variable inside of a external java class, and vice versa.

You can use PAPI or PAPI-WS for accessing BPM instance variable from a Java code, thougt I am not sure how the reverse will be done. Assuming that you are aware aof PAPI-WS and have created the necessary stubs out of the PAPI-WS WSDL using Axis, you can access instance variables using the API's or operations defined therein.
Thanks and Regards
Vivek Nandey
BEA Certified Developer for Integration Solutions
[email protected]

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I want to call External Java class from the PL/SQL

Hi,
I am using Oracle Apps R11i (11.5.7), I wanted to call external Java class from the PL/SQL. This external Java class is residing in another application server.
How do I do this.
I know one way. Develop C routine in Oracle Apps to call external java class and call this C routine from the PL/SQL.
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Thanks in advance.
-Venkat

First of all, this is a Java application you're talking about, right (i.e. it has a main() function)? It's not just a class that you're trying to instantiate is it? If it's an application, you obviously have to start a new virtual machine to run it (rather than using the virtual machine built into the database like stored java). I'm a little leary of your mention of an "application server" as this would more commonly mean that a virtual machine is already over there running with access to this class. In which case, you'd typically interface with SOAP or some other RPC API.
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Hi
Is It possible to access a BPM container variable (Simple type say a String )in a Mapping (message mapping). This mapping is present in the same BPM itself. Is it possible to access the variable in the mapping.
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http://help.sap.com/saphelp_nw04/helpdata/en/59/e1283f2bbad036e10000000a114084/content.htm
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Passing numerical variables to and from a Java class

I'm trying to do something that seems like it should be fairly simple, but apparently it isn't. I'm new to Java and JDBC, so I'm hoping that I'm missing something fundamental and fairly basic.
Basically, I want to pass a set of (number) variables to a Java class from a PL/SQL Procedure, and get back a series of numbers based on calculations to the first set of numbers. (In my real world project, I have to perform a series of matrix calculations to determine regression parameters for two sets of data, but we'll keep this simple.) However, I can find nothing that tells me how to do this, and I'm receiving a series of errors when I attempt it.
For example, let's say I want to send in two decimal numbers, a and b, and receive back the sum s, the difference d, the product p and the quotient q. So, the java class would be:
* MathEx.java
class MathEx {
public static void main(double a, double b, double sum, double diff, double prod, double quo) {
sum = a + b;
diff = a - b;
prod = a * b;
quo = a / b;
Fairly simple, right? It compiles fine using "javac MathEx.java", and then I load the class into the database:
loadjava -u steve/steve MathEx.class
Everything works great. Now, I create a wrapper Procedure. This is where the problem comes in. How do I declare the incoming and outgoing parameters in the Procedure? No matter what I try, I get " the declaration of "MathEx.main([whatever])" is incomplete or malformed"
The procedure I'm trying is:
create or replace procedure Call_MathEx
a NUMBER,
b NUMBER,
s NUMBER,
d NUMBER,
p NUMBER,
q NUMBER
AS
language JAVA
name 'MathEx.main(oracle.sql.NUMBER,oracle.sql.NUMBER,
oracle.sql.NUMBER,oracle.sql.NUMBER,oracle.sql.NUMBER,oracle.sql.NUMBER,)';
I've tried the following values for possible variable types in the "name 'MathEx.main(" statement:
oracle.sql.NUMBER
java.lang.Number
java.lang.Double
java.Math.BigDecimal
The only thing I can get to work is if I just use "java.lang.string[]" and send everything at once, then use parseDouble() to read the parameters inside the Java class. However, that makes it impossible to then read the new values of the sum, difference, product and quotient in the calling procedure, since the variable retain the same value as before the call to the Java class.
Any help is greatly appreciated.

Java Stored Procedures Developers Guide (part of the docs and here on OTN) would probably help.
I suspect you need:
create or replace procedure Call_MathEx
a IN NUMBER,
b IN NUMBER,
s OUT NUMBER,
d OUT NUMBER,
p OUT NUMBER,
q OUT NUMBER
AS
language JAVA
name 'MathEx.main(oracle.sql.NUMBER,oracle.sql.NUMBER,
oracle.sql.NUMBER,oracle.sql.NUMBER,oracle.sql.NUMBER,oracle.sql.NUMBER,)';
Not sure, I always let JDeveloper handle it for me :)

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This doesn't work:
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Error Message:
Scene 1, Layer 'Layer 1', Frame 1, Line 20
1119: Access of possibly undefined property L0Dup through a reference with static type flash.display:DisplayObject.
L0Dup is always visible, thus playing.
here is the function that creates "layer1" and more.
function createLayerBoxes()
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Mapping instance variables to buffer in external format

I was inspired by this OP http://forum.java.sun.com/thread.jspa?threadID=5211760 to develop my first annotation. Having no experience
at all with annotations, I would like to ask you if it is something useful or
an abuse of annotations. I have my code at work and It works, but now I am at home, so here is the idea.
class TestByteMap
@ByteMap.Offset(0) byte aByte;
@ByteMap.Offset(1) int aInt;
@ByteMap.Offset(5) short aShort;
public static void main( String[] args )
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and fromBytes() methods use reflection to move bytes between the
buffer and the annotated variables.
Thank you for any feedback!
Message was edited by:
baftos

If you need to read/write a class to a byte array, using annotations to mark which fields correspond to which offsets is somewhat better than tracking this by hand in comments. Instead of using reflection, you could mark the fields as before and use an annotation processor at compile time to generate the read/write methods appropriate for the class. In any case, it would be recommended to check for overlaps and other semantic errors in the offset annotations.

Can't we declare a static variable inside a memberfunction of a class?

Hi,
class A{
public void fun()
static int i=10;
can' we declare static variable in member function of class?
Thanks,

It is a common idiom in C and C++, but it is forbidden
in Java because it adds hidden dependencies.
The C way of writing a serial number generator:
int generate() {
static int n = 0;
return n++;
}Pure C has only global functions. So it needs inner
static variables to help to hide the data. I've had
lots of headaches trying to make C programs with inner
static variables work correctly because they usually
are hidden in cross-reference listings.
The Java way:
public static class SerialNumberGenerator() {
private static int n = 0;
public static int generate() {
return n++;
}The code above is as static as the C code given
before, but it tries to be more explicit (no hidden
variables).Hum... have you tried to compile your sample ?
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public final class SerialNumberGenerator {
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Hi there!
I have a process and I want to check certain restrictions once a day and if the result of this checks is positive I want to send a notification to other process to continue.
I've tried to use a global automatic activity but it seems to me that it doesn't has access to the instance variables because I've set some Logs and they return always empty even if the variables of the object accessed are correctly fulfilled.
The other solution is to use the project variables but this variables are less flexible to changes on the restrictions.
My questions are:
¿Can I really correctly access to the instance variables from a global automatic activity? -> If this is true then. ¿What may I be doing wrong?
¿Is there any other way to do this?
Thanks for reading and double thanks for reply.

It's sounds at least too tricky because you will have to launch and interactive activity from code.
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Then I write some logs to be sure but when the method was executed they return all empty.
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Hi All,
i have a doubt about scope of instance variable.
if i declare a instance variable in servlet , i want to know whether it can be shared(means everywhere ) or not.
thanks in advance
Gopal

The servlet container will create one servlet object, and run multiple threads through its service() / doGet() / doPost() methods.
That means that any instance variables of the servlet are shared between multiple requests, and can cause problems with threads accessing the same variable..
To make your servlets thread-safe
1 - have no instance variables - only use local variables in the doGet/doPost method.
2 - use the session scope for storing variables you need over multiple calls.
Cheers,
evnafets

Scope of instance variables in servlets..

Hi all,
          Sorry for asking a dumb question..
          What is the scope of instance variables in a servlet? Is the scope is
          limited to thread?
          In other words, in the following example, i am setting "testStr", in one
          request and when i tried to access the same instance variable from another
          request, i am getting it as null. Does it mean instance variable is limited
          to that particular thread/request?
          thanks in advance..
          -ramu


Oops ... I had misunderstood and had the problem backwards ;-)
          > Is it known behavior? With registered servlet its working fine (a
          > instance variable is shared by all requests)
          I believe so; I typically deploy in a WAR so have not seen the problem that
          you describe. Servlets can be reloaded, so what you saw could have been
          caused bye a date/time mismatch between the .class file and the server's
          current time. On the other hand, that could be how WebLogic works.
          Peace,
          Cameron Purdy
          Tangosol, Inc.
          http://www.tangosol.com
          +1.617.623.5782
          WebLogic Consulting Available
          "Ramu" <[email protected]> wrote in message
          news:[email protected]...
          > Hi Purdy,
          >
          > I got it. I am testing the servlet as a unregistered servlet, which is
          > creating instance for every new request!!!, which created this whole
          > confusion. Is it known behavior? With registered servlet its working fine
          (a
          > instance variable is shared by all requests)
          >
          > > What theory? ;-) Instance variables are on the object, and the object
          can
          > > be used by multiple threads, thus allowing multiple threads to access
          the
          > > same instance variables.
          > what i mean by theory here is, all instance variables in servlet should
          be
          > shared by all requests. Now i got it sir.
          >
          > Thank you..
          > -ramu
          >
          >
          > >
          > > Peace,
          > >
          > > --
          > > Cameron Purdy
          > > Tangosol, Inc.
          > > http://www.tangosol.com
          > > +1.617.623.5782
          > > WebLogic Consulting Available
          > >
          > >
          > > "Ramu" <[email protected]> wrote in message
          > > news:[email protected]...
          > > > Hi,
          > > >
          > > > > No, an instance variable in a servlet class is not limited to a
          > thread.
          > > > There
          > > > > is exactly one copy of the servlet created in memory and all
          requests
          > > pass
          > > > > through the same instance, thus sharing any instance variables. A
          > > couple
          > > > of
          > > > > things to remember:
          > > > I totally agree with you, But i am wondering why my sample servlet(i
          am
          > > > attaching the file) is not sharing the instance variables across
          > > > threads/reqs. (in 1st request set some string to "testStr" instance
          > > > variable, in next request if you read the same instance variable, you
          > will
          > > > get null!!)
          > > > Our current code is having instance variables. But right now we are
          not
          > > > getting any problems. But as per theory, instance variables should be
          > > shared
          > > > across threads/requests..
          > > >
          > > > Any how we are changing our code to remove all instance variables.
          > > >
          > > > thanks,
          > > > -ramu
          > > >
          > > > >
          > > > > 1.) Using instance or class variables in servlets that are not
          > read-only
          > > > is not
          > > > > a good thing to do. This makes the servlet not thread-safe. To
          > > maintain
          > > > > variables across requests, sessions, etc., use the servlet-defined
          > > objects
          > > > to
          > > > > store the state (e.g., request, session, etc.).
          > > > >
          > > > > 2.) If you modify the servlet class on disk, WebLogic will reload
          the
          > > > servlet
          > > > > class thus discarding the old instance and creating a new one (of
          > > course,
          > > > this
          > > > > depends on some configuration parameters for servlet reloading).
          > > > >
          > > > > Hope this helps,
          > > > > Robert
          > > > >
          > > > > Ramu wrote:
          > > > >
          > > > > > Hi,
          > > > > > thanks for quick reply.
          > > > > > I am not at all using SingleThreadModel. See the following code.
          > > > > > In first request i am passing "abc" value to testStr. But in
          second
          > > > request,
          > > > > > I am getting null for testStr in second request. It looks like
          (for
          > > me)
          > > > for
          > > > > > non single threaded model also, scope of instance variables is
          > > limited
          > > > to
          > > > > > Thread/Request.. But as per theory, because its not single
          threaded
          > > > model,
          > > > > > only one instance should be there AND testStr(instace variables)
          > > should
          > > > be
          > > > > > shared across the all threads. But i am not able see that
          behaviour
          > > > here.
          > > > > > But if declare instance variable as static, o am able to share
          it
          > > > across
          > > > > > all threads/requests.
          > > > > >
          > > > > > note:
          > > > > > From browser i am setting testStr to "abc" with URL like
          > > > > > "localhost/test1?testStr=abc"
          > > > > > And 2nd req from browser is like "localhost/test1" (on server
          > output
          > > i
          > > > am
          > > > > > getting null for testStr)
          > > > > >
          > > > > > Any ideas?
          > > > > >
          > > > > > thanks,
          > > > > > -ravi
          > > > > >
          > > > > > import java.io.*;
          > > > > > import javax.servlet.*;
          > > > > > import javax.servlet.http.*;
          > > > > >
          > > > > > public class test1 extends HttpServlet
          > > > > > {
          > > > > > public String testStr;
          > > > > >
          > > > > > public void doGet (HttpServletRequest req, HttpServletResponse
          res)
          > > > > > throws ServletException, IOException
          > > > > > {
          > > > > > doPost(req, res);
          > > > > > }
          > > > > >
          > > > > > public void doPost (HttpServletRequest req,
          HttpServletResponse
          > > res)
          > > > > > throws ServletException, IOException
          > > > > > {
          > > > > > try {
          > > > > > res.setContentType("text/html");
          > > > > > PrintWriter out = res.getWriter();
          > > > > > if(req.getParameter("testStr") != null)
          > > > > > {
          > > > > > testStr = req.getParameter("testStr");
          > > > > > System.out.println("set testStr = " + testStr);
          > > > > > }
          > > > > > else{
          > > > > > System.out.println("get testStr = " + testStr);
          > > > > > }
          > > > > >
          > > > > > }
          > > > > > catch(Exception e){
          > > > > > e.printStackTrace();
          > > > > > }
          > > > > >
          > > > > > }
          > > > > > }
          > > > > >
          > > > > > "Cameron Purdy" <[email protected]> wrote in message
          > > > > > news:[email protected]...
          > > > > > > Yes or no, depending on if your servlet implements
          > > SingleThreadModel.
          > > > > > >
          > > > > > > See the servlet 2.2 spec for documentation on how many instances
          > of
          > > a
          > > > > > > servlet will be created. See the doc for the SingleThreadModel
          > > > interface.
          > > > > > >
          > > > > > > Peace,
          > > > > > >
          > > > > > > --
          > > > > > > Cameron Purdy
          > > > > > > Tangosol, Inc.
          > > > > > > http://www.tangosol.com
          > > > > > > +1.617.623.5782
          > > > > > > WebLogic Consulting Available
          > > > > > >
          > > > > > >
          > > > > > > "Ramu" <[email protected]> wrote in message
          > > > > > > news:[email protected]...
          > > > > > > > Hi all,
          > > > > > > >
          > > > > > > > Sorry for asking a dumb question..
          > > > > > > >
          > > > > > > > What is the scope of instance variables in a servlet? Is the
          > scope
          > > > is
          > > > > > > > limited to thread?
          > > > > > > >
          > > > > > > > In other words, in the following example, i am setting
          > "testStr",
          > > in
          > > > one
          > > > > > > > request and when i tried to access the same instance variable
          > from
          > > > > > another
          > > > > > > > request, i am getting it as null. Does it mean instance
          variable
          > > is
          > > > > > > limited
          > > > > > > > to that particular thread/request?
          > > > > > > >
          > > > > > > > thanks in advance..
          > > > > > > >
          > > > > > > > -ramu
          > > > > > > >
          > > > > > > >
          > > > > > > >
          > > > > > >
          > > > > > >
          > > > >
          > > >
          > > >
          > > >
          > >
          > >
          >
          >

How to wash out an AM instance variable at the end of user session (logout)

We have a need to create AM instance variables to hold some session level data, which is too complex to be held in a transient VO.
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Thanks for the insight.

If two users both enter the processRequest logic at
the same time, is it possible that they will both get
the same
result? My understanding of this was that if they
each execute the first line, then each execute the
second
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Is there a way to configure iCloud to allow different email addresses to access one iCloud instance?

I would like to set up iCloud on my home PC using my Apple ID (email account). I would also like to set up my son and daughter to be able to access that iCloud instance from their iPhones and Macs - but it seems like I have to give them access to the email account that I use as my Apple ID.
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If I create a new apple email ID to create the iCloud account, will that require me to change my whole Apple ID as well?
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Thanks Roger.
I don't have as much an issue with the access to the Apple account so much as setting it up on my kid's iPhone (say...) also pulls my personal emails too. I want to give them access to the iCloud - just not my emails!
Should I do this by setting up an alias in iCloud and setting their access using *that* ID?

How to access a file in Unix server from windows using java

I want to access a file in unix server from windows using java program.
I have the following code. I am able to open the url in a web browser.
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Accessing the text/property file inside the root context

Hi
          I want to access the property file lying inside the root context folder
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Hi
Using this.getClass().getClassLoader().getResource("config_settings");
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Basically it means that java will look for your file in the classpath.
The defualt class path of a web server is usualy the following:
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all the best
tal

I want to access that BEA instance variable inside of a external java class

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