Simple Java classes (POJO) used to generate EJB3 session

Hi there,
Since relationships between entity beans are not displayed in a EJB3 diagram, I would like to make a regular Java classes diagram (with regular classes) and then manually add annotations to these classes to make persistent (eg. add @Entity....). Then I would like to generate session beans which could use this simple classes as entity but this does not work : JDev only sees entity beans which were created as 'Entity beans from the menu'...
Any idea?
Thanks,
Fabrice.

Just found a solution: I edited the JDev project file (model.jpr in my case) and add the following line inside the <list n="annotatedEjbBeanClassUrls"> tag:
<url path="src/testejb3/model/Class1.java"/>
If works but that's not a wonderful solution. If someone has a solution which works from the IDE then I am still interested ;-)
Regards,
Fabrice.

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Simple Java class using SQLJ not compiling.

Hello all, I have a simple Java class that is using SQLJ. It will not compile though. I am not sure what I should set for classpath. Any ideas? This is what I have so far.
set PATH=C:\jdk1.2.2\bin;c:\oracle\ora81\jdbc\bin;
set CLASSPATH="C:\oracle\ora81\jdbc\lib\classes12.zip;C:\oracle\ora81\sqlj\lib\runtime12.zip;C:\oracle\ora81\sqlj\lib\translator.zip;C:\jdk1.2.2\lib\*.*"
then
javac SQLJTester.java
Here is my .java file ---
import java.io.*;
import java.sql.*;
import sqlj.runtime.*;
import sqlj.runtime.ref.*;
public class SQLJTester {
public static void update() throws Exception {
java.sql.Timestamp timeNow;
#sql {
BEGIN
:timeNow := sysdate;
END
public static void main (String[] args) {
try {
SQLJTester.update();
System.out.println ("Updated successfully");
catch (Exception e) {
System.out.println ("Caught an exception.");
Thanks ahead for your time,
Justin

When sqlj files are compiled and translted to java file with them the file with extension .ser is also generated. browsers do not recognise this .ser files they only understand .class files which the download using <codebase> instead of class path. so thats why you r not able to use sqlj in servlet. try to customize the profile. Now can some one inform how to use sqlj from eclipse. does it support?. i need to downoad sqlj.exe for that. if anyone has idea from where i can download sqlj.exe pls inform me at [email protected]

Re: Using simple java class in an .war file.

Hi All,
I have a simple question,
Can I access an simple java class from a jsp file that I have written by putting it in the "classes" folder?? What entry should go in the web.xml file?
Here is my directory structure:
sample.war
|
----test.jsp <file>
|
----WEB-INF <folder>
| |
| ----classes<folder>
| | |
| | ----simpleJavaClass.class<file>
| |
| ----lib<folder>
| |
| ----web.xml
I want to access the simpleJavaClass.class from the jsp test.jsp.
Please suggest.
Thanks and regards
Ayusman

It is possible to access the class in u r classes folder from u r jsp file.
For example
<%@ page import="com.test.service.PricingSolution,
com.test.core.PhoneNumber
%>
<% PricingSolution solution = (PricingSolution)session.getAttribute("solution"); %>
This is a simple scriplet example. You do the same using jstl tags also.
--Shinoy

Securing Web Services based on simple Java Classes

Hi @all!
We`ve got the following problem.
There`s a .NET client calling our Web services deployed on Bea Weblogic 8.1 (without
SP).
The Web Services are generated by the ANT task servicegen. They are based on simple
Java classes containing the service methods as public members.
Is there a possibility to secure these methods without using the console menu
item "Define Security Policy" ?
We can`t use this menu because it has got a javascript bug with methods returning
an array.
Thanks in advance for help.
Michael

Hi Michael,
Could you use transport level security, SSL [1]?
I'm not sure what limitation you are experiencing with the console? Is
there a traceback? Have you contacted customer support on this issue?
Thanks,
Bruce
[1]
http://edocs.bea.com/wls/docs81/webserv/security.html#1053203
Michael Albrecht wrote:
>
Hi @all!
We`ve got the following problem.
There`s a .NET client calling our Web services deployed on Bea Weblogic 8.1 (without
SP).
The Web Services are generated by the ANT task servicegen. They are based on simple
Java classes containing the service methods as public members.
Is there a possibility to secure these methods without using the console menu
item "Define Security Policy" ?
We can`t use this menu because it has got a javascript bug with methods returning
an array.
Thanks in advance for help.
Michael

How do I call a simple java class from a bpel process?

Hi.
In JDeveloper 10.1.4.3.0 I've created a simple java class that does an ftp get operation followed by an unzip. The class uses some 3rd part libraries (jars).
I want to use a simple bpel process to schedule a daily execution of this java class, and deploy it all to our SOA-server, - and was looking into using the <bpelx:exec> function.
The java class and the bpel process is all stored in the same JDeveloper project.
How do I put this together so that both my java class and the necessary jars are available to the bpel process?
I've looked into the JavaExecSample.bpel, and it's says something about "...the class com.otn.samples.javaexec.CreditCalculator is locally packaged with this BPEL process".
How do I do that?
Can I make it and test it all locally from my workstation (only JDeveloper installed, I guess there's nothing that can execute the bpel code?), or do I have to compile class etc (make war-file?) and deploy to SOA server (BPEL-INF/lib or classes?) before anything can be tested?
(I guess all this is simple, once you know how, but being a newbie to this I need a shove in the right direction :-)
Regards,
-Haakon-

To create a java class and dependent jars inside the BPEL process project you need to do the following:
1. Right click on your BPEL process project and select New and then Java Class from the Items.
2. Make the BPEL process project, JDeveloper would compile the java classes and add them into the BPEL suite case jar, see the output folder and check the BPEL suite case jar file for java classes and dependent jars.
You can test your Java classes from JDeveloper IDE, no need to deploy the classes on SOA server. When you make the BPEL project it compiles .bpel files and Java classes. You can test your classes once .bpel file and java classes compiled successfully.
Regards,
Dharmendra
http://soa-howto.blogspot.com

How to get the profile object in simple java class (Property accessor)

Hi All,
Please guide me how to get the profile object in simple java class (Property accessor) which is extending the RepositoryPropertyDescriptor.
I have one requirement where i need the profile object i.e i have store id which is tied to profile .so i need the profile object in the property accessor of the SKU item descriptor property, which is extending RepositoryPropertyDescriptor.
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Advance Thanks.

Iam afraid you might run into synchronization issues with it. You are trying to get/set value of property of a sku repository item that is shared across various profiles.
Say one profile A called setPropertyValue("propertyName", value).Now another profile B accesses
getPropertyValue() {
super.getPropertyValue() // Chance of getting value set by Profile A.
// Perform logic
There is a chance that profile B getting the value set by Profile A and hence inconsistency.
How about doing this way??
Create PropertyDescriptor in Profile (i.e user item descriptor), pass the attribute CustomCatalogTools in userProfile.xml to that property.
<attribute name="catalogTools" value="atg.commerce.catalog.CustomCatalogTools"/>
getPropertyValue()
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How to call JCS in simple java class

I want to make a atsratup class and this class will have to communicate with a
java controls.But i am not able to create an instance of java control in simple
startup class.
IF any body has called java control in simple java class pls. let me know

Hi Surinder,
you can use (some types of) controls with the following code:
Class controlClass = Class.forName("mypackage.MyControl");
MyControl control = (MyControl)WlwProxy.create(controlClass, request);
control.callMethod();
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tricks to use it in a startup class.
This is an internal, undocumneted... call and does not set any
parameters of the control, so use it with care.
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BR,
don
surinder wrote:
I want to make a startup class and this class will have to communicate with a java
controls.But i am not able to create an instance of java control in simple startup
class.
IF any body has called java control in simple java class pls. let me know
"surinder" <[email protected]> wrote:
I want to make a atsratup class and this class will have to communicate
with a
java controls.But i am not able to create an instance of java control
in simple
startup class.
IF any body has called java control in simple java class pls. let me
know

Call java class by using servlet

i written simple servlet with doGet(0. I need call java class when i run servlet
my requirement is when i start the server i will call servlet it will redirect to another page.
but before that servlet will run java class. which i have written externally.
i need to run java class by using servlet then it will redirect to another page.
could you give the proper solution

You don't call classes - you call methods.
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Web Services - Simple Java Classes

Hi folks,
I'm new to using Netweaver and web services in general. I have some existing simple java classes already that I want to convert to a web service. I've decided to try and do a simple test first to make sure I understood how to do this correctly so I followed the steps outlined in this link: (I find I understand this better than the other help files)
<a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/60046fb9-ac5b-2910-08a6-b7b04b463c62">https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/60046fb9-ac5b-2910-08a6-b7b04b463c62</a>
In the end what I got was a class file that has been turned into webservices (the code has @WebService, etc). When I try to do a deployment, everything goes well but I'm not quite sure which link I should use to check out my WSDL or anything. I tried the link like in the article above (but used http://localhost:50000 instead) and wound up getting a 404 error. Is there something I'm doing wrong?
Also, as a quick follow up...since the link shows steps on building EJB's for web services, is it correct to assume that I can use the same steps when building simple java classes? (Create project --> Java Project, create my methods/classes, create new webserive and put slider to Test to check if everything works).
Any help with this will be greatly appreciated I've been trying to figure this out for days already.

Hi Bianca,
Welcome on SDN!
Have you tried to follow the steps exactly as described in the above document? That is, move the slider to "Develop service", then deploy your application, and request http://localhost:50000/HelloWorldBeanService/HelloWorldBean?wsdl - this worked fine for me.
> I find I understand this better than the other help files
Well, which help files you use depends on which version of the NetWeaver AS Java you're using. The link above is applicable to the Java EE 5 preview version; the help files you're probably referencing are the official documentation of the NetWeaver 04 and 04s releases.
Hope it helps!
-Vladimir

How to pass a HTTP request from a simple java class

Is it possible to pass an HTTP request from a simple java class.if yes how?

Is it possible to pass an HTTP request from a simple
java class.if yes how?If you're talking about creating a HttpRequest object and passing it to a servlet, that would be a red flag to me that your design is flawed. You shouldn't have to do that - the application server (Tomcat, Weblogic, etc) should be the only thing that has to worry about creating that kind of object and passing it to you.

Than how can i get java class by using it's class file?

Hi
After compilation of a java program, it creates a class file.
After getting class file suppose class file has been deleted.
Than how can i get java class by using it's class file?
Thanks in advance.

get a decompiler and run your class file through it--I'll assume you want the source code back and that you are not trying to recover a missing class file by attempting to use the class file that is missing--if it's missing, then I've not a clue on how to get it back by using what is already missing.
BTW: many of your compilers have source control--if it does, just restore your missing file.

How to Run a .sql file from simple java class

How to execute a .sql file consisting of Complex Queries,procedures through simple java class.
The queries may have different delimiters,queries independant of each other.
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Constraints. Since My .sql may Contain different De-limiters.
If any one can Suggest Some Solution.
It will be Great Help.
regards
Anil

Check out ibatis script runner, it' a third party library but quite handy for running sql files...
m

Import java class that uses DbConnection

How to import java class that uses DbConnection? I don't want to write my own PluginDataSource.
It is possible to get Connection in imported java classes?

This is not possible. Even connection used by individual PDS are only limited to those individaul PDS only and are not shared across them.
Thanks
Rohit

Simple java class for SQL like table?

Dear Experts,
I'm hoping that the java people here at the Oracle forums will be able to help me.
I've worked with Oracle and SQL since the 90s.
Lately, I'm learning java and doing a little project in my spare time.
It's stand alone on the desktop.
The program does not connect to any database
(and a database is not an option).
Currently, I'm working on a module for AI and decision making.
I like the idea of a table in memory.
Table/data structure with Row and columns.
And the functionality of:
Select, insert, update, delete.
I've been looking at the AbstractTableModel.
Some of the best examples I've found online (they actually compile and work) are:
http://www.java2s.com/Code/Java/Swing-JFC/extendsAbstractTableModeltocreatecustommodel.htm
http://tutiez.com/simple-jtable-example-using-abstracttablemodel.html
Although they are rather confusing.
In all the examples I find, there always seems to be
at least three layers of objects:
Data object (full of get/set methods)
AbstractTableModel
GUI (JFrame, JTable) (GUI aspect I don't need or want)
In all the cases I've seen online, I have yet to see an example
that has the equivalent of Delete or Insert.
Just like in SQL, I want to define a table with columns.
Insert some rows. Update. Select. Delete.
Question:
Is there a better java class to work with?
Better, in terms of simpler.
And, being able to do all the basic SQL like functions.
Thanks a lot!

Hi Timo,
Thanks. yes I had gone thru the java doc already and they have mentioned to use java.sql.Struct, but the code which got generated calls constructor of oracle.jpub.runtime.MutableStruct where it expects oracle.sql.STRUCT and not the java.sql.STRUCT and no other constructor available to call the new implementation and that is the reason i sought for some clues.
protected ORAData create(CmnAxnRecT o, Datum d, int sqlType) throws SQLException
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Regards,
Vinothgan AS

Efficiency Question: Simple Java DC vs Used WD Component

Hello guys,
The scenario is - I want to call a function that returns a FileInputStream object so I can process it on my WD view. I can think of two approaches - one is to simply write a simple Java DC that does so and just use it as a used DC so I can call the functionality from there. Or create another WD DC that exposes the value (as binary) via component interface.
I'm leaning on the simple Java DC approach - its easier to create. But I'm just curious on what would be the Pro-side (if there's any) if I use the WD Component interface approach? Is there a plus for the efficiency? (Though I doubt) Or is it just a 'best/recommended practice' approach?
Thanks!
Regards,
Jan

Hi Jan
>one is to simply write a simple Java DC that does so and just use it as a used DC so I can call the functionality from there
Implemented Java API for the purpose mentioned in your question is the right way, I think. The Java API can be even located in the same WebDynpro DC as your WebDynpro components. There is not strongly necessity to put it into separate Java DC.
>Or create another WD DC that exposes the value (as binary) via component interface
You should not do this because in general WD components' purpose is UI, not API. Implementing WD component without any UI, but with some component interface has very-very restricted use cases. Such WD component shall only be a choice in the cases when the API is WebDynpro based and if you have to strongly use WebDynpro Runtime API in order to implement your own API.
If your API does not require WebDynpro Runtime API invocations or anything else related to WebDynpro then your choice is simple Java API.
>But I'm just curious on what would be the Pro-side (if there's any) if I use the WD Component interface approach? Is there a plus for the efficiency?
No. Performance will be better in simple Java API then in WebDynpro component interface. The reason is the API will not pass thought heavy WebDynpro engine.
BR, Siarhei

Simple Java classes (POJO) used to generate EJB3 session

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