Help required. EJB project.

Can someone point me to some non-trivial project that is open source and uses EJB. I would like to gain a better understanding of EJB by browsing through source code of such projects.
Thanks,
Dhaya.

Try reading a book. I think the new Roman Book will be available soon, which is really understandable and easy readable (it also includes some examples)

Similar Messages

Help Required for Project

I am doing IVRS for College as my Final Year Project. Here the caller can just retrieve some information(like student marks, attendance, ....). Came to know that java.sound should be used but unable to know how!. Can anyone plz gimme a rough idea of how to go about!

[url http://forum.java.sun.com/thread.jspa?forumID=513&threadID=450768]Check this thread out.

Please help me to develop EJB project on BEA Weblogic Platform 8.1.

Hi fols ! I am Vishal.
I want to develop EJB project using BEA Weblogic Platform 8.1 with Weblogic Server.I wih to know entire procedure to create ,deploy,test EJb using Java application,web application etc.So send me detail tutorial of it on my email id [email protected]
Thank you!

Buy a good book ... that way you will get your development up-to-speed fast.

Import the WSDL file in NWDI 7.2 using EJB Project

Hi Experts,
This is my Requirement:
I have WSDL File and it is working in the Portal.I have checked in the WSNavigator.
Now i need to import the WSDL file in NWDI 7.2 using EJB Project.
Please let me know the steps to import the WSDL File.
Thanks & Regards,
SatheshKumar R

Hi
Please look at this documents for that
[How to Develop an Enterprise Service Provider for SAP|http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/90d95d37-3f65-2a10-8fa9-a13738c93ea7?quicklink=index&overridelayout=true]
http://help.sap.com/saphelp_nwce10/helpdata/en/46/7f2fef88190ad3e10000000a11466f/content.htm
Hope this helps!!
Thanks & Regards
Vijay K
Edited by: VijaySAPEP on Sep 13, 2011 11:34 AM

How to run the ejb project in j2ee server

How to run the EJB project.
I give like
java conveterClient converterClient.jar
here conveterClient is class file name and converterClient.jar is deployed file
like wise i give some exception is come
give some help pls friends

Navigate to the "DBOrders" module in the catalog, right click on the "ORDERS" database below and click "Export Schema Stucture". That will produce a file containing the DML needed to create the database

How can I create a new EJB project ?

Hi,
I downloaded the trial version and I don't know how to create an EJB project ?
When I create a new project, I've only the web template to choose.
Where can I find informations about that ?
Thanks.
jack

Hi Jack,
This version of the Creator allows you to build applications which access existing EJB's, but doesn't create new EJB's from scratch. We are looking into that for future releases.
If you want to access an existing EJB, please see the tutorials:
http://devservices.sun.com/premium/jscreator/standard/learning/tutorials/sessionEJBcomps.pdf
I believe the Sun Java Studio Standard product can help you create EJB's today, if that's what you need:
http://developers.sun.com/prodtech/javatools/jsstandard/index.html
hth,
Val

How to call external jar files in EJB project for CE

Hi,
I would be thankful if someone could help me with this -
I need to call the external jar files into my EJB project - Here is what I have done and am getting runtime exception as -
java.lang.RuntimeException: java.lang.NoClassDefFoundError: com/glance/pdf/pt/PTDoc
1. Created a EJB project" HelloWorld " using Java perspective in NWDS 7.1 called with client as HelloWorldClient and EAR project as HelloWorldEAR.
2. Am working on HelloWorld project (1st one).
3. In my code I am instantiating a class which is a class in one of the external jar file that I need to refer in my project.
4. I have set the Java Build path but it works only for the compile time and fails during runtime.
5. Have read I need to create external library DC and refer in my project "HelloWorld".
Can anyone help me with exact steps what needs to be done - during creation of external library project and then for my "HelloWorld" EJB project. How would I be able to reference or set the external library project in my EJB project?
Looking forward to hear from experts.
Thanks,
Shiv
Edited by: Shiv Khullar on Aug 30, 2010 9:39 PM

Hi Edson,
I tried it , but it still gives me runtime exception.
javax.ejb.EJBException: nested exception is: java.lang.RuntimeException: java.lang.NoClassDefFoundError: com/glance/pdf/pt/PTDoc
java.lang.RuntimeException: java.lang.NoClassDefFoundError: com/glance/pdf/pt/PTDoc
Steps I performed are -
1. Created a library project and created 2 Public parts "Compilation" and "Assembly"
2. Build the library project.
Now in my EJB project using Project Explorer - set the classpath and added both compilation jar and assembly jar files.
This is how the classpath entries for external library looks like -
<classpathentry kind="lib" path="/LocalDevelopmentLocalDevelopmentexternallibrarypdftoolsforwatermarkingdemo.sap.com/gen/default/public/WatermarkAssembly/lib/java/demo.sap.comexternallibrarypdftoolsforwatermarking~WatermarkAssembly.jar"/>
<classpathentry kind="lib" path="/LocalDevelopmentLocalDevelopmentexternallibrarypdftoolsforwatermarkingdemo.sap.com/gen/default/public/WatermarkCompilation/lib/java/demo.sap.comexternallibrarypdftoolsforwatermarking~WatermarkCompilation.jar"/>
I have also added the jar files I used in my external library project as "User Library" from Java Build Path . I dont do it , then the code fails during compilation itself.
Regards,
Shiv

Ejb project

Hi,
i am doin java client proxy in XI.i ve imported the beans generated from XI into an EJB project in NDS and have changed the ejb-jar.xml accordingly.However the "BUILD EJB ARCHIVE" option is not enabled.Can anyone help?
Regards,
Divya

HI
GOOD
GO THROUGH THESE LINKS
http://help.sap.com/saphelp_nw04/helpdata/en/86/58cd3b11571962e10000000a11402f/content.htm
http://www.sapgenie.com/xi/
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/f272165e-0401-0010-b4a1-e7eb8903501d
THANKS
MRUTYUN

EJB project IDE build dos not include properties files

We have property files also which we want included as part of the build process
for EJB projects but if we use the IDE build it does not include them. We have
to therefore export the IDE build and customize it to include *.properties like
this
<zip basedir="${dest.path}" zipfile="${ejb.outputJar}" encoding="UTF8">  <zipfileset dir="${project.local.directory}" includes="*.properties"
/> </zip>
which causes a problem for us because the exported build file is specific to a
user's local PC and cannot be used in a team environment.
How can we have the IDE build include all the files within an EJB project i.e.
include properties files also.

Hey Jamie,
Currently there is no support to include other .properties files into
the internal build. There's a build.properties that you get as part of
an EJB project which you could place your values into and use that as
your template for your team based development and check that into your
source control.
If you'd really like to get gross and hack Workshop a little bit you
could modify the default EJB project template to use your .properties
file for every EJB project you create. This would then splat a copy of
your .properties file into the root of the EJB project.
To do that you'd go to {your BEAHOME}\workshop\templates and crack open
the ejb-project.zip template zip file and merge your settings into the
existing build.properties file. This has the same
effect as replacing the .properties file after you've created your
project only it keeps you from having to perform that step each time.
The downside of this is that each person on your team would then have to
update that template zip file in their workshop installation. (I'd make
sure to backup the original template file before performing this
activity so you can always go back to the original template).
Hope this helps,
-Michael
Jamie wrote:
We have property files also which we want included as part of the build process
for EJB projects but if we use the IDE build it does not include them. We have
to therefore export the IDE build and customize it to include *.properties like
this
<zip basedir="${dest.path}" zipfile="${ejb.outputJar}" encoding="UTF8">  <zipfileset dir="${project.local.directory}" includes="*.properties"
/> </zip>
which causes a problem for us because the exported build file is specific to a
user's local PC and cannot be used in a team environment.
How can we have the IDE build include all the files within an EJB project i.e.
include properties files also.

Unable to build EJB project.

Hi All,
I am new to CE and trying to crete an EJB project. I am following the below tutorial.
http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/b030e7fb-2662-2b10-0dab-c4aa52c3550b?quicklink=index&overridelayout=true
I have configured the data source, created the EJB module, created the Entity Bean & session bean. While trying to build the project, I am getting an error "Unable to provide dictionary objects. Please check if the connected project is sttll valid."
Please help me resolving the issue.
Regards,
Bhavya.

Hi Divya,
Follow the above steps in the following link how to use external library in DC's
/people/bertram.ganz/blog/2008/11/24/how-to-use-external-jar-files-in-web-dynpro-development-components
1)Expose the JAR file in two separate public parts, one with purpose assembly (1) and another one with purpose compilation (2).
2)Use the public part with purpose compilation in the Web Dynpro "client" development component
Let me know if you are still facing the problem.
Hope this helps you...
Regards,
Saleem
Edited by: Saleem Baig Mohammed on Jun 2, 2009 2:35 PM

Audit Log is required for Project server

Hi,
Audit Log is required for EPM / Project Server 2010
Following are the requirements.
Project Name, Resource Name and Date of Following Events.
1. Project checked Out By, Date (This is highly important)
2. Project Checked In By, Date
3. Project Published By, Date
4. Project Saved By, Date

Hi Hachishti,
Please refer to a recent similar thread with excellent answer from Paul.
http://social.technet.microsoft.com/Forums/projectserver/en-US/435fbb7a-1c82-419c-b83e-e89419dc66aa/project-server-2010-view-plan-save-history?forum=projectserver2010general
Hope this helps.
Guillaume Rouyre - MBA, MCP, MCTS

Using swing to develop EJB project

Hi, Folks
I am using jbuilder7 to develop swing connect to ejb project, one requirement is that i should doing control with the editable table. That requirement make me to tied with JBuilder component JDBTable. However the development time would become remarkable long. does anybody have experience of using fancy swing and EJB in the same project?
thansk in advance.

forget to tell you I am using JDBTable already. the problem is that how
could i serlize the dataset to EJB in a easy way? ok, you don't need to serialize your dataset to trasmit to server side. Class com.borland.dx.dataset.DataSetData implements Serializable interface already, so you can send your dataset to server and do not care about serialization. But what to do with this DataSet on server side is very interesting question ;). As for me, it's not very handly to pull out your data from Dataset on server side (DataSet "looks" like client-side class). But, of course, it's up to you.
unfortunlly I should doing add, delete, edit from my table. So its
pretty complex to deal with this sort of issue.Why complex? I don't think so. For example, you may set 2 buttons: "Set" and "Delete" under your Jtable view and just "to fish" data client entered in your Jtable string, pack this data in your own serializable model and send this data to server session facade. As for me that's very handly and fast. And there is no complexity...
Regards.

How to performance an UPDATE query in EJB project

Hi all,
I would appreciate help very much in knowing how to update rows in database when using EJB projects. Select queries are widely explained but nothing about update ones.
Thanks in advance.

869357 wrote:
No it's not running, giving some error.That is because SQL server construct is different than that of Oracle.
Try with
update table1 a set a.id = (select min(b.id) from table2 b where a.dept = b.dept);
However, due the repeated department values will not give you the desired output.

Periodic material requirment in project

Hello Guru's,
I need your help in my project requirment :- We are working for construction project were we have an activity for concrete work.
now total work involved in this activity is 120m3 and the duration is 12 months. So period wise 10m3 work i am going to execute.
To execut this 10m3 of work I need 5kg of cement per month.
So total material required to execute the 120m3 of work in 60kg.
Now my requirment is when I create activity in proj for concrete work, i attach cement as material to this activity and generate the reservation. Against this reservation through MRP material is procured and issused to proj. (this is the process)
While attaching material I need to specify 60kg but system should generate 10kg of reservation every month is this possible???
if so how or suggest me to map this process.
Thanks in advance,
Tushar

Hi,
If I need to cretate periodic requirements for a material which is converted into a PR then do I need to assign the material perio-wise?
what i was thinking if there is any means of triggering a PR for the overall quantity and then splitting the quantity period-wise in the PR.My MM person says no functionality of this kind is available.
Would the best way-out be to create a manual PR and put the periodic requirements line-item wise?
Thanks and Regards

Unable to resolve "Missing Required java Project : com.sap.dictionary"

HI ,
Iam praveen , working on web dynpro's , I imported a project template and repaired it and all the .jar files are included in the project . But still am getting some errors like the below...
Error               Missing required Java project: com.sap.dictionary.services.     com.sap.dictionary.runtime          Build path
Error               Missing required Java project: com.tssap.sap.libs.logging.     com.sap.dictionary.runtime          Build path
Error               Missing required Java project: com.tssap.sap.libs.xmltoolkit.     com.sap.dictionary.runtime          Build path
Error               Missing required Java project: org.eclipse.core.resources.     com.sap.dictionary.runtime          Build path
Error               Missing required Java project: org.eclipse.ui.     com.sap.dictionary.runtime          Build path
Error               The project was not built due to classpath errors (incomplete or involved in cycle).     com.sap.dictionary.runtime
can anyone help me in resolving these problems, i have been trying to resolve this problem , but failed. send me solution if any one can solve it
-Praveen

Hi praveen,
your project refers to a dictionary that you haven't in the project. Besides, right click on the WD project and check all the external references to others projects. You must open the external projects pointed by your WD.
Hope this help you,
Vito

Re: Tutorial: Using an EJB Project

I am a computer engineering student who is learning weblogic. I appreciate if
anyone can help me with my question on Using an EJB Project
This tutorial can be found in weblogic 8.1: go to workshop ->help->Tutorials and
samples-> Using an EJB project
On page 11, section: Create a web application, it asks to import a webapp file
that nowhere to be found in beahome. Where can I find webapp file for this
ejb example
Thanks very much,
Jessica

Hi Jessica,
If I'm understanding your question correctly you're running
the EJB tutorial that's being shipped with the 8.1 beta correct?
I just did a quick check on my installation of the pre-beta installer
and didn't see it there so it's possible there's a bug in the installer
or something. At any rate, I've attached a zipped up copy of that
tutorial code here. Hope that helps.
Michael Kovacs
Senior Software Engineer
BEA Systems
"Jessica " <[email protected]> wrote in message
news:3e9b0cfc$[email protected]..
>
I am a computer engineering student who is learning weblogic. Iappreciate if
anyone can help me with my question on Using an EJB Project
This tutorial can be found in weblogic 8.1: go toworkshop ->help->Tutorials and
samples-> Using an EJB project
On page 11, section: Create a web application, it asks to import a webappfile
that nowhere to be found in beahome. Where can I find webapp file forthis
ejb example
Thanks very much,
Jessica[EJBProject.zip]

Help required. EJB project.

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