J2SE to J2EE - general question

Hi,
I have an application, made up of several classes, written in J2SE. What does it entail to make these classes J2EE-compliant? changing import statements to include J2EE-specific classes? is it a major overhaul?

It depends on your application really, by the sounds of it you should first familiarise yourself with J2EE technology.
A good place to start is the J2EE tutorial
http://developer.java.sun.com/developer/earlyAccess/j2ee/tutorial.html

Similar Messages

J2SE to J2EE

I'm considering a jump from J2SE to J2EE. My question is,
What are the main differences between the two?

"I have been using databases in some of my apps."
JDBC lies completely inside J2SE, J2EE does not add anything to it.
"I would like to add a servlet to my latest app."
If you are looking into using JSPs, Servlets, and the rest of J2EE to replace PHP server applications, then you are on the right track. If you just want to use a Servlet in a regular, desktop app, you are probably looking at it wrong (adding the necessary Servlet Container (web server) would be a huge footprint to the app, and prolly something that your users would not want on their computer...)
"...explain some of the advantages of using enterprise instead of the standard edition"
You don't use it instead of the standard edition, you use it on top of the standard edition. You use it to write web applications. That way, you have one centralized server that does the work. The user has versions of a client (a web browser or any client that can read the data you send... this could be a J2SE desktop app if you wanted...) that the user interacts with, and which in turn interacts with the server which does the work.
So J2EE is about layered control.
1) The client app displays info to the user and provides a means of interaction
2) The server stands as a listening device that sends messages to the correct part of the app and back to the user.
2) 1) The Servlets act as a control mechanism that runs the business logic (work)
2) 2) Other layers may handle data access and storage (databases, XML. EJBs?)
2) 3) Other layers may handle dispaly generation (JSPs) or return information (JMS)
The advantage is that your work is done in one place. Everyone who uses the app doesn't need to update everytime the application does. Every user doesn't need to have a DB on their computer. Users can communicate and share information more efficiently. At the same time no user gains access to someone else's data because the data storage and access is twice removed from the client...

J2SE and J2EE Which with what ?

I am running Windows NT 4.0 server, with SP6a & Windows NT 4.0 work station, with SP6a. On reading the various combinations of J2Se and J2EE, which do I need to match. Also I am using ant 1.5.3 and looking at some CORBA 3 work using JacORB 1.4.1. I have been using J2SDK 1.4.1_02 for general jave work.
From what I have been reading it looks as if I need J2SE 1.3.1_02 with J2EE 1.3.1.
What is the real combinations of J2SE and J2EE needed for such a asystem ?
Also at present I do not particularly wish to move to a Win2000 Server/workstation combintion as yet.
Thanks
Omegaall

You may now download J2EE 1.4 which will be compatible with your existing installation of J2SE 1.4.1_02.
However, J2EE consists of the application server and additional tools. They are not required, nor are they recommended for heavy duty enterprise work; J2EE is simply a basic "reference" platform for you to get your feet wet on.
Other alternatives do exist, and if you've tracked down Ant, you probably already know about Tomcat, JBoss, WebSphere and a number of commercial engines. All of these packages essentially take J2EE and extend them further (or are faster, or are more reliable, etc etc).
If you have been asked to develop COBRA objects - as opposed to, and I stress this, as opposed to - merely being interested in the technology, then I strongly strongly strongly suggest you find out what your customer is using and set up a scheme similar to theirs. By developing to the same platform, you can save yourself a lot of deployment and packaging headaches, and essentially develop the objects "the right way" for that system.

General question on SQL Server 2000 to Oracle 10g

Hello all,
I just have a general question on migration from SQL Server 2000 to Oracle 10g using SQL Developer.
How does it migrate Users with proper privileges from SQL Server to Oracle? Follow the interface steps? Or should the users be created on destination Oracle side?
Thank you.

Hi,
It depends which type of migration you are making.
For a 'Standard' migration when you migrate data a 'create user' statement is created as part of the migration and you will see this in the generated code.
If you are using the 'Quick' migration option then you need to create the Oracle user or use an existing user to receive the data.
Your best option is to review the documentation available from -
http://www.oracle.com/technology/tech/migration//workbench/index_sqldev_omwb.html
or directly from -
http://download.oracle.com/docs/cd/E12151_01/index.htm
and then get back with specific questions if this does not give you the information you need.
Review the chapter -
2. Migrating Third-Party Databases
in -
Oracle® Database SQL Developer User’s Guide Release 1.5
Regards,
Mike

Report Builder Question - OA AR Aging - and a general question

I'm sure this is the wrong forum for this question, but I thought there might be someone here who might be using Oracle Applications and Report Builder who'd be kind enough to help me out.
We've recently implemented Oracle Applications 11.5.10 and I have to use report builder to change the Accounts Receiveable Aging (7 bucket) to a 5 bucket report. I've already made some changes to the seeded "ARXAGMW.rdf" report, but I'm not a big Oracle Reports guy. I've stumbled through making some changes in various other reports. But this one is just plain nasty! :)
I was thinking that I could simply add buckets 6 & 7 to bucket 5, then just hide or delete the 6 & 7 buckets. But I'm not sure where to even start. Any help with this would GUARANTEE a Christmas or other holiday card this year! :)
I really want to keep this simple as possible, so any help would be very....helpful. :)
Oh, my general question is: Are there any resouces/books for Oracle Reports (Report Builder)? I feel so lost trying to modify existing reports, let alone creating new ones.
Thanks again!
Steve

Hi Steve,
I am working on the 7-bucket aging report and i want to add a new field in data model.
As the query is build dynamically, i have modified the function BUILD_CUSTOMER_SELECT to meet my requirements.
But the problem is that in the data model, the field is not present in my Grouping. and if I try to add the field in the Data Model query (Q_ Customer) section,
i get the following error: ORA-01789: query block has incorrect number of result columns.
The query is as shown below:
select rpad('a',50,'-') short_cust_name,
0 cust_id,
rpad('a',30,'-') cust_no,
rpad('a',500,'-') sort_field1,
rpad('a',40,'-') sort_field2,
0 payment_sched_id,
rpad('a',32,'-') class,
sysdate due_date,
0 amt_due_remaining,
0 days_past_due ,
0 amount_adjusted,
0 amount_applied,
0 amount_credited,
sysdate gl_date,
'x' data_converted,
0 ps_exchange_rate,
0 b0,
0 b1,
0 b2,
0 b3,
0 b4,
0 b5,
0 b6,
rpad('a',25,'-') bal_segment_value,
rpad('a',500,'-') inv_tid,
rpad('a',32,'-') invoice_type
, 'y' parent_cust --I WANT A NEW FIELD HERE TO BE VIEWED ON THE REPORT LAYOUT LATER
from dual
where 1=2
UNION ALL
&common_query_cus
Did i missed somthing 4 me to be able to add the field here?

General question about iTunes Match and multiple libraries

Hello to everyone,
I have a general question about the iTunes Match service, which is available since yesterday in my country (Italy). Currently my library situation is the following:
Computer A (desktop, Windows 7): "big" iTunes library (about 20 GB), at the moment not associated with my Apple ID
Computer B (MacBook Air 2011): "small" iTunes library (about 5 GB), associated with my Apple ID
At the moment, both my iOS devices (iPhone 4 and iPad 2) are synchronized with the smaller library on the MacBook Air.
Question is as follows: should I subscribe to iTunes Match, would it be possible to upload the "big" library (provided I associate it with my Apple ID) to iCloud while keeping my devices synchronized with the "small" one?
Ideally, at the end of the day, the situation should be the following: both iOS devices with music from the small library + possibility of downloading songs from iCloud (coming from the big one). Is this possible?
Maybe the question sounds stupid, but I want to be sure about this before paying for the service.
Thanks a lot.

Yes, you could also associate your larger library with iTunes match if you associated your Apple ID with it. However any purchases in the library made from another Apple ID will not be matched with iTunes much.
If both libraries are part of iTunes match, then all your devices will see all of the content from both libraries, which content you choose to have on those devices and which you have accessible via iTunes match is entirely up to you.

General Question on Proxies

Hi,
I have few general questions....
How to decide which proxy to be used: Java or ABAP?
What are the deciding factors?
Which one is better when it comes to performance?
Regards,
Rajani Kumar

bump

Where to direct a general questions about foreign films subtitles?

I recently purchased a foreign film "Break Ke Badd" from the iTunes store. Although, it didn't specify that it had English subtitles, I assumed it did. After the full download, I tried to watch it and there weren't any English subs. I contacted iTunes and they more than happy to refund the money back to my account. Now after a few weeks, the iTunes store DOES list Eng subs for this film. I don't want to purchase it again and have to contact iTunes for another refund...Therefore my question is, is there a general question contact one could use to find an answer to my question. Basically, to verify that this movie, indeed has English subs before I re-purchase.
Any info is appreciated!

Yes I know as the [https://support.mozilla.org/en-US/questions/ Questions] section is more for desktop Firefox support and the place I linked to is for "Firefox OS" support in English where some who are involved with it do post in it occasionally.
I would have moved that [https://support.mozilla.org/en-US/questions/962783 thread] to the "Firefox OS" English section, however I cannot as the [https://support.mozilla.org//questions/ Questions] and [https://support.mozilla.org/forums Contributor Forums] are not the same.

Camileo charging problem (solved) and a general question!

Hi all!
First of all, I was going to ask for help as to why the Camileo S10 was not charging (the orange light wasn't flashing), and I'd seen a few people with similar problems.
The solution?
Give the contacts on the battery a clean.
The insulation sticker that comes on it must leave some kind of residue on it, and it's enough to prevent charging. Now it's flashing away happily :]
So my general question was, is it possible/advisable to use the camera on the mains?
Rather than constantly draining and charging the battery during long shoots, I'd prefer to just leave it plugged in!
Thanks very much in advance!
Paul

Hi
I think the battery handling is always the same no matter what product it is
From time to time the battery should be recalibrated.
This means that the battery should be discharged fully and after then you should charge it again until the battery would reach 100%
I do this with all my batteries; mobile phone battery, digi cam battery and notebook battery.

Update on Bioinformatics WIKI, scripting challenges, and a general question

I am waiting for my site to go on-line at Oak Ridge National Labs (USA, Tennessee). Should be another week or so, maybe less.
When that happens, you will see a veritable explosion of scripting challenges in my wiki (Emerging Technologies->Bioinformatics.)
One general question in preparation for these challenges.
There are a number of standard bioinformatic programs that can be run interactively via the web at various sites, e.g. "BLAST" and "STRIDE".
Although these can also be run locally, this requires that you download large databases and keep them updated.
So here's my question to the scripting experts:
Are scripting languages powerful enough to submit queries to web pages and then use regex's to parse the html that is returned?
Bill Mann has used PERL to do some of the required regex parsing, but there is a lot left to do, and, his stuff only works when a perl program is invoking a bioinformatic program locally, not interactively.
If so, we all can do some beautiful stuff together , if anyone is interested ...

...my wiki on...
There is by it's very nature no such thing as MY WIKI, except you run your own wiki project in an exclusive mode. Which were...well ... unusual.
Are scripting languages powerful enough to submit queries to web pages and then use regex's to parse the html that is returned?
Yes.
anton

Delete scriptcode - General question: capacity limit of Acrobat Windows

Hello everybody,
I've got a general question to the capacity limit of Acrobat Windows.
I often make forms with
for instance the current one has 18 pages. Eleven pages have fields on it. (But some pages have only one field on it) The fields of one page to another are sometimes linked with script code. The file needs nearly 1 MB.
Usual I write the script code by a double-click on the field/ calculate/ custom calculation script. (Is this the right way?) Today it happens again that a field with script code lost the script code.
That's why I wonder whether there is a capacity limit of Acrobat Windows or whether I make mistakes. (This is only one instance of several where the form has his own life.)
Thanks in advance for helping me!

http://forums.adobe.com/community/acrobat/acrobat_scripting

Difference between J2SE and J2EE...

Hi all. I was wondering what the difference between J2SE and J2EE were. I mean in the code structure. Are the packages the same, like Swing, IO, things like that. I'm a bit of a beginner in Java, only been messing around with it for about 6 months now kind of in my spare time, and I know I'm in now way ready for J2EE, but it's something I think I'd like to maybe look into. I know it's for Enterprise Applications, much bigger scale than I'm used to, but fundamentally, how is it different? Different coding conventions? New packages not in J2SE? I hope what I want is coming across okay. Thanks for all the input.
James

J2EE defines a large number of specifications, in addition to J2SE. Examples are the Servlet, JSP, JMS, and EJB specifications. Most of those specifications are designed to have implementations running inside an Application Server. There are free implementations available such as JBoss (combined with for example Tomcat), and I think youre best bet to learn is to download one of those and go from there. Servlets and JSP are a good beginning, and then maybe move on to EJB and the rest.
Br - J

SAP GRC Process Control - General Questions

Hi all,
We have the following general questions regarding SAP GRC Process Control:
1) Assume that we have set up 5 different SAP Connectors in Process Control. When you configured a specific rule and control and then, schedule the job for such control, how does the system (SAP Process Control) knows which back-end system needs to be accesed for such control?
2) In which language are the out-of-the box rule steps's script coded? In which different languages can those scripts be coded, what is to say, in which language can we code our own scripts?
3) How is the detailed flow between SAP Process Control and SAP Back-end system?
Many thanks. Regards,
Imanol

null

General Question re logical workflow (Multiple Products/Sales Teams)

Currently we are upgrading from a highly customized CRM environment developed in CRM 4.0. We are hoping to move to an out of the box solution with 2015.
But I have a general question. We are a service company with different sales groups for each of our products.
Currently we have customization for each service so a Sales person is assigned to a specific product for the customer.
So my question is, how is this handled out of the box. I am sure there are many many many companies in the same situation.
So say 10 products with sales group for each product.
Then a customer with multiple departments. Each sales group needs to contact the specific department.
So a customer could potentially have 10 different sales people contacting different people in the customers organization.
How do you know when someone has already made contact?
If we just look at the activities it is not very clear that contact has been made for a specific product.
Even with our customizations, there have been many situations where 2 sales people contact the same person at a clients office and we end up looking very unorganized.
Any thoughts or comments are appreciated.
If this is not the right place to post this type if discussion, please redirect me.
Thanks

As an example, for 37-minute sequence of footage (made up of multiple clips) it's taking 50 minutes to first export a non-self-contained, time-code-reader-filter-added Quicktime.
Did you render fully before you exported? That helps. But this is also a GOP format, and it takes longer to do pretty much everything, as it is a processor intensive format.
1) How much more memory would help this work flow go faster, and approx. how much faster??
None. RAM doesn't come into play here. PROCESSOR speed is all that matters. What will make it go faster is enabling QMaster to have Compressor access all cores of the processor. Or getting hardware to help with the compression, like the Compress HD from Matrox. But that only boosts encoding to H.264.
2) Has anyone else done this type of work-flow, and been able to do it more quickly? Is RAM the issue? Any suggestions for a more efficient work-flow?
RAM isn't the issue. Faster Processors, hardware boosting...converting the footage to ProRes before you begin editing...all help.
RAM isn't what is hindering you here.
Shane

Newbie question - general question about e-mail sync

Hi,
I have a general question about email sync and BlackBerry smartphones. Are there any devices that allow email syncing with a Microsoft Exchange 2007 system that do not require the BlackBerry Enterprise server?
Thanks; sorry if this has been asked before but I was unable to find it in the forums, documentation, etc. Everything I found assumes that for this kind of environment you will be using a BlackBerry Enterprise solution, but I can't assume.
Thanks again.
Solved!
Go to Solution.

Hi and Welcome to the Forums!
If the Exchange server has anything that faces the internet (OWA, POP, IMAP), then BIS can be used to handle email (only email...calendar and contacts require BES to sync OTA).
Or, a PC, inside the network (but with an internet path) and logged into the email server (using Outlook), can be left running, using the RIM Desktop Software's Desktop Redirector capability to forward messages to the BB.
Those are basically the options.
Hope that helps! Let us know!
Occam's Razor nearly always applies when troubleshooting technology issues!
If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.
Join our BBM Channels
BSCF General Channel
PIN: C0001B7B4 Display/Scan Bar Code
Knowledge Base Updates
PIN: C0005A9AA Display/Scan Bar Code

J2SE to J2EE - general question

Similar Messages

Maybe you are looking for