Some general questions about swing

Hi,
I used to do some swing development couple years back but since then I have been more involved in the j2ee scene. I have lost some touch and was wondering if some of my questions can be answered. I'd appreciate every effort.
First of all, I am trying to make an applet that can be used to upload multiple pics at the same time. Similar idea to facebook picture upload applet. My Q's are
-> can every swing application be turned into an applet? or when the developer starts writing an application he should write it from an applet POV
-> I noticed that the applet on facebook looks a lot like a window application. icons and the look and feel of the application is not that of a applets i saw couple years ago with sun java look and feel, how can this be achieved? is there some small example?
-> can someone suggest an example || tutorial of an applet that shows how to upload an image to the server?
and lastly for mental satisfaction :)
-> how hard do you think it is to build such an application. I assume it will just have a JTree on the left side and on right side it will show contents of the folder that is currently clicked.
Thanks for your time

thanks for the tutorial link.
However, the tutorial explains how to show icons from images. But what about in my case when the images arent even on the server yet.
Basically when the user is browsing files and gets to their my pics folder on the right side i want to show icons of images in that folder. for this reason i doubt I will be able to use what they've implemented in that tutorial. As the pics havnt yet been uploaded by the user i have no direct access to the images.

Similar Messages

Some general questions about recently purchased Powerbook G4 15"

Hi guys,
I finally got my used Powerbook G4 15" A1095 1.5ghz off eBay and it's got some issues, any help would be great:
1.White areas on the screen, not to concerned about it but i can see them?
2.Some spots of dirt "behind" the screen all the way down the right edge of the display? These are not dead pixels?
3.Won't read dual layer dvd's? (i know it can't burn them)
4.Tatty case. (I have purchased a new lower case top case and lid from The bookyard for a total of £60 and i am having our It guys replace these for me to tidy it up.)
5.After buying these bits i've since discovered the lower ram slot is faulty so i'm stuck with 1gb?
6.Can the dirt behind the screen be removed when the lid is changed or are they in the display itself?
I did try and return the book to the seller but pretty much got nowhere so i'm stuck with it. On the plus side the screen has no dead pixels, is nice and bright and the machine runs pretty fast. I only use it for web surfing and music some it's fine.
Phew! sorry the the mass of questions!

Sounds like you bought yourself a project - or some else's troubles.
The internal drive won't read dual layer DVDs. They were not even invented when the PB was released.
The dirt behind the screen hints that the machine has been apart. It is possible to get the front glass off, but as eww stated it is not a fun or easy job.
The white spots sound about right for an aging Powerbook. I'm guessing you are not using it as a portable cos I'm sure the battery is smoked too. Hook it up to a nice large external display. The PBs have a powerful video card and give great color depth on a decent display.
The failed RAM slot is a killer, but common. Mine is the same. 1GB of RAM does the job, so don't give it a second thought.
Sadly, the Powerbooks are at the end of their life cycle as a portable, but they do make great desktop computers with a few peripherals. Set it up with a nice widescreen display, an external firewire DL DVD drive and a cooler pad and you should have a lot of fun with it.
Don't put Leopard OSX 10.5 on it! It will just slow it down and give you a whole new bunch of issues to address.

Some general questions about java

Hi,
I am a beginner with java and actually i am new to programming as such. i want to ask certain questions.
I read in The Java Tutorial that java is both a 'compiled' and an 'interpreted' language while most languages fall in either one of the two categories. What is the difference between a compiled and an interpreted language?
All the java programs that we right are compiled by the java compiler. So in what language was this java compiler and java VM written
What is the definition of native code. Does it depend on the operating system ? If so, is it defined by the operating system ? If I am not mistaken, an OS in itself is a huge program, so which language can be used to create an OS. For instance, can an expert in java create his own OS using the java programming language ?
These questions may sound silly but I need to know the answers

Okay, a compiled language is completely translated into object code (one and zeroes, usually) before it is run. An interpreted language is turned into object code as it runs. The object code for most languages is the ones and zeroes that make sense to the processor. The object code for Java is Java bytecode.
Java bytecode is a set of universal commands that make sense to any Java Runtime Environment (JRE or Java Virtual Machine JVM. I think they're the same thing, someone correct me if I'm wrong,). The JRE is an interpreter. Each JRE is specific to the platform, that is; there's a Windows JRE and a Solaris JRE and yada yada. The JRE interprets the bytecode commands and turns them into commands for the platform. For instance, a bytecode command is something like, "draw a window" and the JRE turns this into the Windows or Solaris command that draws a window.
I don't know what language Java was written in. It may not all be written in one language. It's very possible that the Java compiler (javac) and the java interpreter (the JRE) are written in entirely different languages. I'd suspect the answer to this can be found in van der Linden's "Just Java" book.
Native code, in Java, usually refers to legacy code, existing code written in whatever language that you wish to use in a Java program. Maybe the native code costs too much to convert; maybe it works really well, maybe it does soemthing special, whatever -- you want to use it so you use the native command in a Java program to tell Java to run this piece of code in whatever language. Native code doesn't really have anything to do with the OS other than it's code that runs on the OS you want the Java program to run on.
An OS can be written in anything you want, but some languages are better than others. I think the Mac OS is/was mostly Pascal. Wasn't C invented in order to write Unix?

Some General Questions about using SSL sockets

1 Since both SSL and TLS rely on public-key cryptography, can I use it efficiently for encrypting large amount of data transfer within a network? Or I�ll be better off using secret key.
2 If I understand correctly, I can install client/server certificate (public key) along with the software installation. Is that right? In other words, I don�t have to create them programmatically.
3 To convert our unsecured client/server application, is it enough to replace plain sockets with SSL sockets and use a self signed certificate for the server? (Ours is a closed network and we don�t require any client authentication).
4 How does SSL handles server to server communications?
5 How do you encrypt data ( some of the fields) in a text file?
Thank you all.

hey there.
1.yes you can use it to encrypt large amounts of data, and heres why:
when you use SSL, it uses public key encryption to first tranfser across a private key. then from then on the data is simply private key encrypted, which is relatively fast and easy.
2. Yes, you may chose to make them programatically or not
4. the question doesn't really make sense. In the end, what is a Server and what is a Client is up to your application. From SSL's point of view, you just have two machines with Sockets on either side that are connected. You can use SSLSocket.setClientMode(boolean) to choose which of those socket will act as the "server" for the purpose of the authentication handsake.

Some general questions about multi-threading

Hey Everybody,
I have a dilemma with a multi-threaded program that I have written.
Well to be truthful I actually wrote the program with no consideration whatsoever for multithreading.
As a result of this complete lack of concern I get a completely hung user interface.
My program performs a lot of network communications over URL��s and also writes information from URL��s to disk. The combination of networking and I/O in my program and the fact that I have not built multi-threading into the program has lead to complete failure of the user interface. When I say complete failure I mean complete failure. If it were only button��s not responding then I wouldn��t be all that worried, however the entire drawing area of my programs ��Frame�� completely freezes. It��s cool if nothing is maximized or minimized over the frame but as soon as this happens my programs drawing area has a ��serious hang over!��.
I have begun learning about threads, in principle they sound wicked however in practice they have proven to be a brain tease (oops �K.. honesty).
The difficulty of threads should not be all that daunting to me, however I have a couple of very simple questions that I would love to have answered�K..anybody out there!!!!!!!!!
This is the normal basic method of running a thread that I have been attempting to incorporate into my program:
1). Extend the thread class,
2). Override the run() method in the subclass (created from step 1),
3). Create an instance of the subclass,
4). Call the start() method on the instance (from step 3).
I have read that every statement the thread will execute is contained within it��s run() method.
Question 1). This being the case is it possible to have member variables or methods inside a class that extends thread? Please explain!
Question 2). Can a class that extends thread contain a constructor? Please explain!
Question 3). If a subclass of thread cannot contain a constructor as I assume to be the case then how can code executing within the newly spawned thread reference information from the object that spawned it?
If anybody out there on the great net can answer even half of one of these questions I will be more than grateful. Thanks for your time, and rock on Java!
David

Thread t = new Thread(MyRunnableDerivedClass);
t.start();I hope it is understood that MyRunnableDerivedClass is actually an object of the MyRunnableDerivedClass. sorry for the confusion.
so here's a thread that reads from a file using constructors, member variables, other funcs. It's not optimal but shows use of all of the above. I just typed this in so there are probably syntax errors, but you should get the point.
public class ThreadedFileReader implements Runnable
    private File m_File;
    byte[] contents = new byte[0];
    public ThreadedFileReader( File f )
       m_File = f;
    public void run()
        BufferedInputStream bis = null;
        try
            bis = new BufferedInputStream( new FileInputStream( m_File ));
            int avail = bis.available();
            while (avail > 0)
                int oldLen = contents.length();
                contents = expand( contents, avail );
                bis.read( contents, oldLen, avail );
                avail = bis.available();
        catch (Exception e)
        { //do something witty
        finally
            try{ if (bis != null) bis.close(); } catch (Exception e){}
   private byte[] expand( byte[] oldBuf, int addedLen )
      byte[] newBuf = new char[oldBuf.length + addedLen];
      System.arrayCopy( newBuf, 0, oldBuf, 0, oldBuf.length );
      return newBuf;
   public byte[] getContents()
       return contents;
//here's where we use it
File f = new File( "c:\myfile" );
ThreadedFileReader tfr = new ThreadedFileReader( f );
Thread t = new Thread( tfr );
t.start();
t.join();
// At this point the thread has died, but the thread object still exists
byte [] data = tfr.getContents();

Some general questions about Sun Java Communications Suite

Hello Everybody,
We are a small group of individuals (2 Java developers and 1 Linux expert and Web Application developer), located in Germany.
We are fully new to �Solaris� and Sun Java Communications Suite and know, that it�s a highly professional software system for large scale deployment. However we plan to install (64 Bit version) and manage it in a small network environment, consisting of a Server (4 GB RAM, RAID 5, AMD Dual CPU) based on Solaris 10 (X86) and *20* clients based on Win XP, Solaris and Linux.
It�s a network of a non-profit organization, providing social services to local society.
At clients we will use the Communications Express and the needed services are: Calander, Mail and Address book. (no need of Outlook Connector, Instant Messaging, Document Management, etc.)
Our long-term aim is - after learning of professional architecting, deployment and management of Communications Suite - to provide integration and development services to organizations (schools and small / medium sized Business) and public in cooperation with ISP or infrastructure-providers like Sun Microsystems.
Now, our main questions are:
*1.-* Is the Server phy. recourse enough to deliver the mentioned services of Communication Suite to 20 clients without problems?
*2.-* Isn�t Communications Suite oversized for such small network mentioned above or better, if we use another collaboration software system like Opengroupeware (http://opengroupware.org/) ? Opengroupeware is developed using non-java lang and therefore doesn�t match our strategy.
*3.-* Does the Communications Suite download-pack includes all necessary components of Sun Java ES (Directory Server, Access Manager, etc.) or these components are to be downloaded separately?
*4.-* What is the difference between the Sun Java System Messaging Server and the Sun Java System Message Queue?
We appropriate very much your answers and any further useful information regarding our project.
Thanks
Asghar

1> I believe your hardware can support 20 users (you might need to tune the Web Server heap size) - I had a Sparc 2x450mhz w/ 2GB of ram supporting 50+ users quite comfortably - with roughly half using POP and the other half IMAP/webmail. Ideally though, for best performance you would want to break up the main servers (LDAP, WEB, and MS) between hosts) - probably not necessary for 20 users. Having all on one machine simplifies things too (but also makes it a single-point-of-failure). Your disk obviously is important, the faster the better - that it's redundant is also nice - larger deployments might use much fancier storage systems to provide speed and redundancy, and use an the App Server instead of the Web Server as a container for Comms Express.
2> I don't think it's "oversized" - might you mean overkill? In this case I don't think overkill is a bad thing. Why not have very capable software, even if you don't really need it -is how I see things.
3> I believe you get all you need in the download. Though I've never tried the 64bit version (which I am guessing is only really necessary for larger deployments where you want to obtain maximized performance for heavier loads). I recommend following the single host evaluation document to get the hang of the install.
4> I'm not sure - though the Messaging install I believe requires the MQueue stuff, I think it's sort of an API for messaging, also available separately, but used by JES Messaging system?
Good Luck,
s7

I have some general questions about Java

Is there a such thing as a list of every Exception in Java?
Is there somewhere I can look at examples of try statements, catch statements I guess tutorials on the basics of Java, like what would constitute these statements.

Thanks so much. This helps with the questions that I have. I am taking a class, where the only input I'm getting is "feedback". I'm expected to read the chapter, do the assignments, mind you this is the first time I have ever seen Java. Most of the class dropped out and now I see why.
I asked the questions I did, because I didn't know "what" I understood the books explanation of the try statement pertaining to it's example, but I have nothing to apply "across the board" when it comes to try statements. The links you gave me were great, I now know how to tailor my questions. I will use the example in the link you gave me and try to equate it to my assignment. (This is a perfect example!)
readFile {
    try {
        open the file;
        determine its size;
        allocate that much memory;
        read the file into memory;
        close the file;
    } catch (fileOpenFailed) {
       doSomething;
    } catch (sizeDeterminationFailed) {
        doSomething;
    } catch (memoryAllocationFailed) {
        doSomething;
    } catch (readFailed) {
        doSomething;
    } catch (fileCloseFailed) {
        doSomething;
}I know that hitting enter more than once, entering a non integer (7.4), or entering a character "w" will cause a NumberFormatException. I am to enclose the methods in the try statement. Does that mean that I start with try {, then the section of code? Then I need a statement or code? This is where I am confused. I look at the example above and those are actual statements. Will it come a time when after "try" i will need code?
What would be my statement? Is this something that I make up? ( I know these questions are dumming it down ALOT but once I get why something is done, I'll get it everytime.) My try statement has to say something to the effect that if the user trys to enter a non-integer value....am I right so far???
try
//Calling the user-defined methods
multiplier = getNumber();
correct = takeQuiz(multiplier);
System.out.println("\t\tYou got "+correct+ " correct!" );
user inputs any invalid, non-integer
catch (NumberFormatException e)
}

General Question about SAP Documentation. Where to find?

Hello,
I am relatively new in the SAP business and so I have some general questions about the SAP Documentation.
Often internet-links like
http://help.sap.com/printdocu/core/Print46c/en/data/pdf/FIBP/FI-AP-AP-PT.pdf
are posted here by group members.
But where do these group members find these documents?
All I can see at help.sap.com is IDES (the model company created by SAP)and the WWW-version of the SAP-Bibliothek.
Were can I find these PDF-Files?
I would appreciate any hint and tip!
Thank you!
Kakue

thats true! i dont know how to find either. Everytime i need something i ask on the forum.
Here's a good link
http://www.easymarketplace.de/online-pdfs.php
Plz reward points if helpfull

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.

I have a Macbook Pro june 2011... I have 8GB ram but I only have 256mb VRAM... I've read some other questions about this and I realized... Why do I not have 560mb of VRAM since I have 8GB of RAM? Is there any way to get more VRAM to play games on steam?

I have a Macbook Pro june 2011... I have 8GB ram but I only have 256mb VRAM...
I've read some other questions about this and I realized... Why do I not have 560mb of VRAM since I have 8GB of RAM?
Is there any way to get more VRAM to play games on steam?
I've learned by reading other topics that I can't upgrade my graphics card on my Macbook Pro because it's soldered into the motherboard or somthing like that, but please tell me if there is any way to get more video ram by chaning some setting or upgrading something else. I'd also like to know why I only have 256MB of VRAM when I have 8GB of RAM, since I have 8GB of RAM I thought I was supposed to have 560mb of VRAM...
So the two questions are...
Is there any way to upgrade my VRAM, so that I can play games on steam?
Why do I only have 256MB VRAM when I have 8GB total RAM?
Other Info:
I have a quad core i7 Processor.
My graphcics card is the AMD Radeon HD 6490M.
I am also trying to play games on my BOOTCAMPed side of my mac, or my Windows 7 Professional side.
THANK YOU SO MUCH IF YOU CAN REPLY,
Dylan

The only two items that a user can change on a MBP are the RAM and HDD (Retinas not included). You have what the unit came with and the only way you will be able to change that is to purchase a MBP with superior graphics
If you are very much into gaming, the I suggest A PC. They are far superior for that type of application to a MBP.
Ciao.

Some generic questions about JMF

Hi, as new to JMF, I would like to ask some generic questions about JMF from this community
Though including RTP stack, JMF is only compatible to old RTP draft, RFC1889. I know that Sun stopped developing/supporting JMF. What is the alternative solution for JAVA RTP implementation suitable for a serious SERVER project, not just a school-term project? Has anyone thought about that or may have already moved forward? Is that any commercial or more updated Java based RTP stack currently? I searched with google. Besides jrtp, a school project, and I could not find a nice one. Majority of RTPstack implementation is C/C++.
My second question is if there is the performance analysis and comparison of JMF. I know that some client applications such as SIP-Communicator adopt JMF for media delivery. But it is for one user in one machine. I wonder if any server application has adopt JMF as media relaying layer.
I appreciate any input from this community.

erwin2009 wrote:
Hi, as new to JMF, I would like to ask some generic questions about JMF from this communitySure/
Though including RTP stack, JMF is only compatible to old RTP draft, RFC1889. I know that Sun stopped developing/supporting JMF. What is the alternative solution for JAVA RTP implementation suitable for a serious SERVER project, not just a school-term project? Has anyone thought about that or may have already moved forward? Is that any commercial or more updated Java based RTP stack currently? I searched with google. Besides jrtp, a school project, and I could not find a nice one. Majority of RTPstack implementation is C/C++. There is one active project out there, Freedom for Media in Java, that has RTP capabilities. It's obviously not from Sun, but it's the only other RTP-capable project I am aware of, other than FOBS4Java, I believe is the name of it.
What they are suitable for is beyond my scope of knowledge, I only know of the 2 projects.
My second question is if there is the performance analysis and comparison of JMF. I know that some client applications such as SIP-Communicator adopt JMF for media delivery. But it is for one user in one machine. I wonder if any server application has adopt JMF as media relaying layer. None that I have seen, except for various projects I've helped people with on this forum. But, if someone is asking for help on a forum with his/her server application, it probably doesn't meet the guidelines you just laid out ;-)
I appreciate any input from this community.Sorry I don't have more to add to your inquires...

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
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PIN: C0001B7B4 Display/Scan Bar Code
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I have a handful of general questions about Firefox OS as a consumer..

I couldn't find a better place to post this, so I'm trying on here.
I'm in the market for a tablet (high-end), and I'm holding off on getting an Android-powered one because of Firefox OS. However, I have some general questions and concerns regarding performance, software and hardware. Here they are.
1. Is the Firefox OS interface as responsive as a native experience on say an iPad or an Android tablet? (Is there any lag on swipes between screens, button presses, etc?) If not, will it be in the future?
2. Will I miss the Android marketplace or the Apple app store, being restricted to only HTML5 apps? Do you think this will become an irrelevant question as the HTML5 app ecosystem grows?
3. Do you think the quality of HTML5 apps will be inferior to those from existing app stores because they are free?
4. Will the Firefox browser be the only one available in Firefox OS? (i.e. will there be the option to use Chrome, Opera or any other browser if the user so wishes?)
5. Will Firefox OS include useful utility apps, such as an alarm clock, a calendar, a weather app, etc?
6. I read a lot, both on the web (news, video game reviews), as well as ebooks. Will Firefox OS on a tablet be a pleasant experience conducive to e-reading? (Will it include a good ebook reader app?)
7. Will there be a high-end Firefox OS tablet that is comparable in specs to the Nexus 10? (i.e. impressive screen resolution, powerful CPU/GPU, lots of inputs/outputs like USB, HDMI, microSD, etc) When do you think such a device might become available?
8. Would it be possible to flash Firefox OS onto say a Nexus 10 or other tablet or phone if one wanted to use it as their OS instead?
Thanks!

1. Depends on the phone but a avererage power android phone would likely cost the same as a high end firefox os phone.
2. HTML 5 is really the future of the web, I've heard that Firefox will let you package apps to be playable offline, but not sure if thats true.
3. I '''think''' Firefox OS may have paid apps that will be restricted to users who buy them.
4. I think Mozilla will be nice enough to let Google and Opera make browsers. Google let Mozilla do that with FF for android.
5. See the simulator https://addons.mozilla.org/en-us/firefox/addon/firefox-os-simulator/
6. too early to say
7. too early to say, but Foxconn (helps apple) makes some apple products, so yes in the future is see a high end Firefox OS tablet 2-3 years down the road.
8. not sure
NOTE: Please note that we are only contributors, we dont develop firefox os.
You can ask more on the IRC channel as there are likely devs there.
https://client00.chat.mibbit.com/?server=irc.mozilla.org

Some basic question about SCM Installation

Hi Folks,
Could you please advice me about some basic questions about SCM and its installation -
Q1. Do I need to have an R/3 System to be able to practice OR demo the SCM system?
Q2. If, yes, which version of SCM is compatible with the ECC 5.0?
Q3. What are the basic requirements to install SCM (version compatible with ECC 5.0) and ECC on a oracle db and windows OS?
Q4. Does SCM have APO and BI as an inbuilt functionality OR does the user need to purchase these as an Add-On?
I know these are some basic questions, but these will help me give me a direction.
With best wishes,
Krishna

Hello Krishna -
Q1. Do I need to have an R/3 System to be able to practice OR demo the SCM system?
---> There are various Modules in SCM Like APO (Sub Modules DP (stand alone), SNP Needs Master data from R/3 and has to pass on transactional Data to R/3, PPDS same as SNP, GATP same as SNP), ICH needs Data from R/3 to work with. Core Interface (CIF) connects R/3 to APO for transferring data.
Q2. If, yes, which version of SCM is compatible with the ECC 5.0?
-->For thorough understanding explore the following links
http://help.sap.com/saphelp_scm41/helpdata/en/9b/954d3baf755b67e10000000a114084/frameset.htm
http://help.sap.com/saphelp_scm50/helpdata/en/9b/954d3baf755b67e10000000a114084/frameset.htm
Q3. What are the basic requirements to install SCM (version compatible with ECC 5.0) and ECC on a oracle db and windows OS?
-->Refer Above
Q4. Does SCM have APO and BI as an inbuilt functionality OR does the user need to purchase these as an Add-On?
--> APO comes with a small BI inbuilt functionality. you can only perform certain functions using that BI.
Hope this helps.
Regards,
Suresh Garg

Some basic questions about DAC

Hello
I am just starting to use DAC now and I have some basic questions about DAC..
1: How many different kinda image tables are there, what are they used for?
2: In order to check which ETL mapping with in the same execution plan is taking a long time, what to do? I mean is there a table that stores such info?
3: How to determine which ETL task to run after and which after?
4: Is subject area always map to the Informatica workflow folder? Or what should subject area be?
Please shed some lights on it, deeply appreciate!
Thanks

Hi,
I have problems to understand you question but will do a try:
From a logical point of view objects can be only serialized reasonabely when they have a state of it's own which can be reestablished at a later point in time and space without further dependencies.
F.E. a "serialized file" would NOT make much sense cause it depends heavily on the state of the underlying file system.
You can't expected that is can be deserialized at a later point of time (physical file refered may not longer exists) or on another machine, where the serialized object was transported to.
Technical - at zero approach - it's more or less trivial. Simply implement Serializable and all non static, non transient fields of your object will be serialized automatically.
But there is a couple of pitfalls, you should study documentations regarding this feature.
Hope this helps
Martin

Some general questions about swing

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