Problem with file types. Please help

I recently downloaded the entire Sun Java Tutorial and have started to go through it. At the end of the first main trail about inro to OO Programming, there is a question/answer portion. There are a couple of excercies where you are to go through the ClickMe app and change some things around. When you click the 'click me' hyperlink, it would open the source in a new Internet Explorer window. That didn't work well for me as I can't very well edit anything in an Explorer window. So, I decided to change and do an 'open with' and used NotePad. Well, it didn't open it in a very readable format... so I thought 'forget it' I want to get it back to the IE format where I can at least read it easily. So, I've started to dig around and now I can no longer do an 'open with' and if you go into the View, Options, File Types 'JAVA' isn't listed anywhere in there.... BUT if I try to add a new type it says'java_auto_file' is associated with another program. So, then I got into REGEDIT and tried to modify the 'java_auto_file' key to use InterNet Explorer... but now I can't get the thing to even open in IE. HELP? If anyone can do this and see what I'm talking about can you figure out how to get me back to how it was when I pulled off the Tutorial....I'm lost. Thanks

Try Netscape -- it lets you see the source files .java when you click on the link.
Messing with Window's Registry is risky business. Try to find the old working copy and restore/rename it.

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Problem with file downloads - please help

Good morning. Since upgrading to BT Infinity 2, I have been experiencing the following problems:
Cannot update Sonos firmware to version 5 - download times out and gives error 30
Cannot download most files from safari - all start for the first few kb and then just hang
Cannot download larger PDF files from Mac Mail
These problems manifest themselves over wireless and wired connections, with the BT Homehub 5 and an Asus router. My ipad has no problems when on other networks or if I access my email from my work computer. When talking to BT technical support over the chat facility yesterday the connection dropped once every 10-30 seconds before reconnecting again. All of this leads me to believe that I have an intermittent failure on my broadband connection however BT insist that there is nothing wrong with the line or the router. I have changed channels on my router but this does not seem to make things better. Internet is working fine on all my devices for web browsing - only file downloads experiencing problems.
Please help.

Oh sorry, I thought from your description you were using an ASUS connected to the HH5, but it turns out you're using them separately.
Is there a firmware update you can get on the ASUS?
If you found this post helpful, please click on the star on the left
If not, I'll try again

I'm still having problems with XUL Runner - please help am getting desperate!

I recently sought help over a problem I am having with FF. When I try and load it, I get a message telling me that XUL runner 1.9.2.11 is not compatible with 1.9.2.12. The advice I received was to do a clean install. I have done this a number of times - using the Uninstall option in Control Panel as well as running the uninstall utility in the Firefox program folder. Each time I reinstall, and get the same problem. The only difference is that a few days ago I was installing FF 3.6.10, and that gave the error message that XUL runner 1.9.2.11 was not compatible with 1.9.2.10.
I have FF set as my default browser, so when I click on links in e-mails, etc. I get the same failure to load symptoms. However, I found by chance that FF works OK in conjunction with System Mechanic 10 - a maintenance utility I have on my machine. If I select the on-line help option from that Menu, FF loads and runs OK. I can open new tabs and have no problem loading other pages. However, even with FF open, if I click a link in an e-mail, I get the XUL Runner error message.
Although not all symptoms are the same, I am also having problems with IE8. When I run the program it loads, shows a 'connecting' message in the tab header, then closes. If I uninstall FF, then System Mechanic selects IE8 as the default browser, and as with FF, loads OK.
Chrome and Safari both run OK (thankfully). there must be someone out there who knows what this all points to - is that person you?!
Note: Trouble shooting information retrieved using FF when opened with System Mechanic.

If you have such problems then you need remove the Firefox program folder before installing a new copy of the full Firefox installer.
It is important to delete the Firefox program folder to remove all the files and make sure that there are no problems with files that were leftover after uninstalling.

Weirdest problem with ipod!PLEASE HELP ME!!!

Okay, i tried to load a playlist that had about 100 songs on it. While its loading, the update just stops. My ipod starts going crazy.The apple logo keeps lighting up and then the light doesnt come on but the logo is still there. You can hear the inside of it like trying to come on but then it just keeps doing the same thing til the battery life runs out! I really need help on this! I've tried to reset but everytime I do it it just keeps doing the same thing. I dont know if i should wipe all my songs off of itunes or what but im so confused and so aggravated with it. PLEASE HELP ME! I'D REALLY APPRECIATE IT!
Windows XP

Welcome to Apple Discussions!
See if any of these help...
iPod Only Shows An Apple Logo and Will Not Start Up
iPod Only Shows An Apple Logo
btabz

Problem with file type... some files have been changed to folders... Help !

Hello,
I have problem with some files that are located in Library / Quicktime.
I have 7 files in that folder and all are .component files.
3 of them used to look like a lego block :
DivX Encoder.component
macam.component
MayaIFF.component
But today, I have accidentally change them into folders (and I don,t Know how...) So instead of having thoses 3 files with the lego block icon , I have 3 folders and If I click on thoses folder, It open like a standard folder, so I see the "content" folder inside them...
How can I change it back to the .component file type they should be... I know how to change the type of a file, but since they are now folders, there's no "file Type" associated with them (right click / infos)...
Help !

There are lots of things that are in fact folders, but the Finder treats them as "files"--in the sense that normally when you select one you cannot see the contents of the folder. One way this is done is by the use of certain extensions, for instance .app, .pkg, .mpkg, .bundle and .component all tell the Finder to NOT display the folders as folders. If you do a GetInfo on them and the name is still "whatever.component" and the Kind: Component is still showing, and you haven't noticed any problem with QuickTime, then don't worry about it.
Those are all third party QT components. If they aren't working, you may have to reinstall them from the original source.
Francine
Francine
Schwieder

Problem with "Package Spec" please help.

Hello once again.
I'm developing a master-detail form, so I'm using a "Package Spec" variable to hold the primary key value from the master form. The primary key value for the master is generated by a sequence.
Here's the package spec:
PACKAGE primary_keygen IS
pkey varchar2(15);
END;Now the master table has the following "Before Insert" Trigger .
CREATE OR REPLACE TRIGGER MASTER_NUM_GEN
BEFORE INSERT
ON MASTER
FOR EACH ROW
DECLARE
primary_key_value varchar2(15);
BEGIN
select lpad(to_char(ref_gen.nextval), 4,'0')
into primary_key_value from dual;
primary_keygen.pkey:='ABC/'||primary_key_value;
:new.Ref_Number:=primary_keygen.pkey;
END;For the detail block. I have the following "Before Insert Trigger" to generate the primary key values.
CREATE OR REPLACE TRIGGER DET1_NUM_GEN
BEFORE INSERT
ON DETAIL1
FOR EACH ROW
BEGIN
if :new.M_ref_number is NULL THEN
:new.M_ref_number:=primary_keygen.pkey;
ENd if;
END;Works quite fine if I have only one detail block. But if I have multiple detail blocks. Depending on the user's selection. i.e. After entering data into the master block, the user selects a detail block ('Letter type'- using stacked canvases for this purpose and radio buttons for selecting the view) and then Inserts data into it. here's what I do in the Detail block2.
CREATE OR REPLACE TRIGGER OREF_NUM_GEN
BEFORE INSERT
ON DETAIL2
FOR EACH ROW
BEGIN
if :new.O_ref_number is NULL THEN
:new.O_ref_number:=pkey_gen.master_key;
ENd if;
END;Now the problem is that When I enter one record into detail1, works fine, but for the second time, when I try to insert another record. the master table gets a new reference number (primary key value) while the detail block gets the previous value that was used in the first record!, so that means 'pkey_gen.master_key' is holding the old value, while in my opinion it should hold the new value, I dont know whats wrong here. If I try to insert two consecutive records into the same detail table, I get an error saying "Unique Constraint voilated", becuase the variable is holding the old values.
And lastly after it inserts the record into the database, I get a dialog box saying, "successfuly inserted 2 records into the database" and when I click ok, the Form closes by itself, any ideas on how to stop this?
I'm really stuck here. Please help me out on this.
Thanks.
Note: I'm using Form6i with Database 10g.
Message was edited by:
fahimkhan82

Hi,
Maybe the best way to start is to try building a new form from scratch. For simplicity I will assume that you have one master and one detail table. Master table has a primary key and the detail table has a foreign key to the master. Based on this, with the forms you can create a database block based on your master table. Use the wizard. Again using the wizard, create a second block based on the detail table. You'll see a screen to prompt to create a relationship. Create one by selecting the master table and the right foreign key relation. Now take a close look to all triggers automatically created by the form. Also check the "Relations" object found in you master block object tree. Note that the foreight key column in the detail table has the "Copy Value From Item" property set to monitor the master block's primary key.
This is the basic. You don't need the database triggers, except (in case you want to insert through, say, SLQPlus) the one for the master table, which will look like this:
CREATE OR REPLACE TRIGGER MASTER_NUM_GEN
BEFORE INSERT
ON MASTER
FOR EACH ROW
BEGIN
IF :new.ref_number IS NULL THEN
select 'ABC/'||pad(to_char(ref_gen.nextval), 4,'0')
into :new.ref_number
from dual;
END IF;
END;
Now you have to take care about the inserts in your form. Create PRE-INSERT trigger on the master block.
IF :master.ref_number IS NULL THEN
SELECT 'ABC/'||pad(to_char(ref_gen.NEXTVAL), 4,'0')
INTO :master.ref_number
FROM dual;
END IF;
Run the form and explore different situations to see how the form is keeping the data integrity.
Compile with Shift+K (incremental). Sometimes forms blow just because not all of the trigers were compiled properly.
Hope this helps...

Having problems with Frontrow. Please help!

Hi,
i've been trying to figure this out all day today but i haven't found any solution. hopefully you Mac Geniuses can help. now, my problem isn't that my videos won't play, because they do. they all play perfectly. okay, so when i launch Frontrow, all my video files appear under their respective folders; my TV Shows appear under the TV Shows folder and my Music Videos appear under the Music Videos folder. however, for some strange reason, these files also want to appear under the Movies folder. That means they're showing up twice! -under the Movies folder and TV Shows/Music Videos. is there anyway to fix this, because it's really cluttering my Movies folder and i admit i'm a really anal neat-freak.
Also, i have correctly labeled the video files as Movie, TV Show or Music Video under iTunes. Everything is organized well under iTunes, so i doubt it's that.
please help!!
Message was edited by: ec84

It might be because with the new update, it seems as though anything stored in the MOVIES folder , shows up under movies in Front Row. I have a folder of Transformers AVI'S in my movie folder, now it shows up in the movie directory of front row

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We are using crystal report with ASP.NET/C# (Visual Studio 2005).
Using Crystal report viewer control on the web page to have previews.
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I have the following questions:
1. Does it make sense to think of previewing such a huge report on web page?
2. What should be the alternate?
3. I tried "Export to PDF" technique, but it failed.
Thanks in advance for your help.
Regards,
Kangkan

I tried to use exportToPDF technique. It works when the number of page is less. But just hangs up when the number of pages is high. I am working on finding the breaking number.
There is no problem with HD space as well.
I also tried to print the report to a printer on the server directly. I used the printer as "Adobe PDF" to use Acrobat Distiller to create the PDF. It starts up and asks for the destination for the PDF file also. Once it starts the system shown an error and the Microsoft Feedback Assistant for failed application comes up.
I am now trying to print the pages to a network printer connected to the server. Shall get back with latest update after sometime.
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Thanks and regards,
Kangkan

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Hi
i have one big problem with my OC4J Application Server: i create an instance, then i deployed my appliation with the .ear file. i have 15 page uix. my problem is when i want to see my application from the browser, some of the page run correctly ans some other no; in other world the one that don't run, in reality it run but it display the last one that run correctly.
i hope that i m celar.
can you help me.
Thank you

Islem,
Please post your log file content as well as server version, OS etc. (see:
http://forums.oracle.com/forums/ann.jspa?annID=818-Michael

Problem with PWM signal, Please Help!

Hi all,
I am designing a PWM signal where its output is going to connect 4 optocouplers to drive a H-bridge MOSFETs. However, I am now having a problem of getting an output signal strong enough to drive the optocoupler.
I have attached the Multi-Sim file along with this post. Please feel free to help me to solve this problem thank you.
The version of Multi-Sim I am using is 10.0.144
Attachments:
PWM_HCPL0631.ms10 ‏72 KB

Hi Justin,
I am slightly confused as to whether this is a problem with Multisim or the design of your circuit. Are the components in Multisim behaving in an unexpected manner in comparison to their real-world counterparts?
Regards,
Thomas Clark
Applications Engineer
National Instruments UK & Ireland

Activation problems with Cingular. Please help very frustrated

Ok, here is the deal, I live in Orlando, FL most of the time, but I am in Michigan and I bougt 2 iphones today, that was 1000 bucks, plus 200 in security deposits. I went to cingular, payed the deposit, and now that im at home, i cant register the product. I have been on the phone with cingular suppost getting different reasons why i cant answer but i still want to check it out here. Im getting an address verification problem. The guy is saying that when we payed the sucurity deposit, we put our florida market address on file with the Pre Approved Credit Check Number. THere saying our sim cards are michigan sim cards, and its not letting me register because of the sim cards are not in the same market as the credit check number. I tunes keeps giving me an error of address though. Is anyone receiving this same problem? The error is saying that they cannot verify the address on file, as the address that im typing in, even though it is the same address. We tried changing everything to michigan, and still got the same problem. We changed the address on the credit check number, and the address that im trying to register in michigan.
Please Help
Rodd,
Thanks guys
You can only imagine that im upset not being able to even power the thing up. It wont let you go past the emergency call feature since its not activated.
*****

Heres what you have to do Rodd...I used to be a RSM for Cingular.
First you need to cancel your first activation because your sim cards have been set up with activation in Michigan you will get a Michigan area code, prefix, etc. If you did not set it up with the exact are that you paid the deposit in, then you will not be able to activate it.
Ex: if I live in Texas, but want a California number, I have to go to Cali and set up my account, and then come back to Texas and I will have my Cali number while living in Texas.
If you tried to set it up wrong to many times it flags your account.
Either go back to the store you got them in and pay the security deposit again, or go to the closest ATT store in the area you would like to have your area code, prefix, etc. in.
Example: if you want a Michigan number, then go to Michigan..and set up your account all in the same place that you want your number....Billing addresses can be different but the activation address will be where the iPhone number is given from.
Hope this helps..God bless

I suppose it is the problem with socket connection,Please help

Hi,
I'm trying to build a chat server in Java on Linux OS.I've created basically 2 classes in the client program.The first one shows the login window.When we enter the Login ID & password & click on the ok button,the data is sent to the server for verification.If the login is true,the second class is invoked,which displays the messenger window.This class again access the server
for collecting the IDs of the online persons.But this statement which reads from the server causes an exception in the program.If we invoke the second class independently(ie not from 1st class) then there is no problem & the required data is read from the server.Can anyone please help me in getting this program right.I'm working on a p4 machine with JDK1.4.
The Exceptions caused are given below
java.net.SocketException: Connection reset by peer: Connection reset by peer
at java.net.SocketInputStream.SocketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:119)
     at java.io.InputStreamReader$CharsetFiller.readBytes(InputStreanReader.java :339)
     at java.io.InputStreamReader$CharsetFiller.fill(InputStreamReader.java:374)
     at java.io.InputStreamReader.read(InputStreamReader.java:511)
     at java.io.BufferedReader.fill(BufferedReader.java:139)
     at java.io.BufferedReader.readLine(BufferedReader.java:299)
     at java.io.BufferedReader.readLine(BufferedReader.java:362)
     at Login.LoginData(Login.java:330)
     at Login.test(Login.java:155)
     at Login$Buttonhandler.actionPerformed(Login.java:138)
     at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1722)
     at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(AbstractButton.java:17775)
     at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:4141)
     at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:253)
     at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:261)
     at java.awt.Component.processMouseEvent(Component.java:4906)
     at java.awt.Component.processEvent(component.java:4732)
     at java.awt.Container.processEvent(Container.java:1337)
     at java.awt.component.dispatchEventImpl(Component.java:3476)
     at java.awt.Container.dispatchEventImpl(Container.java:1399)
     at java.awt.Component.dispatchEvent(Component.java:3343)
     at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3302)
     at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3014)
     at java.awt.LightweightDispatcher.dispatchEvent(Container.java:2967)
     at java.awt.Container.dispatchEventImpl(Container.java:1373)
     at java.awt.window.dispatchEventImpl(Window.java:1459)
     at java.awt.Component.dispatchEvent(Component.java:3343)
     at java.awt.EventQueue.dispatchEvent(EventQueue.java:439)
     at java.awt.EventDispatchThread.pumpOneEvent(EventDispatchThread.java:150)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:136)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:131)
     at java.awt.EventDispatchThread.run(EventDispatchThread.java:99)
     My program looks somewhat like this :
1st class definition:
public class Login extends Jframe// Login is the name of the first class;
Socket connection;
DataOutputStream outStream;
BufferedReader inStream;
Frame is set up here
public class Buttonhandler implements ActionListener
public void actionPerformed(ActionEvent e) {
String comm = e.getActionCommand();
if(comm.equals("ok")) {
check=LoginCheck(ID,paswd);
test();
public void test() //checks whether the login is true
if(check)
new Messenger(ID);// the second class is invoked
public boolean LoginCheck(String user,String passwd)
//Enter the Server's IP & port below
String destination="localhost";
int port=1234;
try
connection=new Socket(destination,port);
}catch (UnknownHostException ex){
error("Unknown host");
catch (IOException ex){
ex.printStackTrace ();
error("IO error creating socket ");
try{
inStream = new BufferedReader(new InputStreamReader(connection.getInputStream()));
outStream=new DataOutputStream(connection.getOutputStream());
}catch (IOException ex){
error("IO error getting streams");
ex.printStackTrace();
System.out.println("connected to "+destination+" at port "+port+".");
BufferedReader keyboardInput=new BufferedReader(new InputStreamReader(System.in));
String receive=new String();
try{
receive=inStream.readLine();
}catch(IOException ex){ error("Error reading from server");}
if(receive.equals("Logintrue"))
check=true;
else
check=false;
try{
inStream.close();
outStream.close();
connection.close();
}catch (IOException ex){
error("IO error closing socket");
return(check);
// second class is defined below
public class Messenger
Socket connect;
DataOutputStream outStr;
BufferedReader inStr;
public static void main(String args[])
{ Messenger mes = new Messenger(args[0]);}
Messenger(String strg)
CreateWindow();
setupEvents();
LoginData(strg);
fram.show();
void setupEvents()
fram.addWindowListener(new WindowHandler());
login.addActionListener(new MenuItemHandler());
quit.addActionListener(new MenuItemHandler());
button.addActionListener(new Buttonhandle());
public void LoginData(String name)
//Enter the Server's IP & port below
String dest="localhost";
int port=1234;
int r=0;
String str[]=new String[40];
try
connect=new Socket(dest,port);
}catch (UnknownHostException ex){
error("Unknown host");
catch (IOException ex){
ex.printStackTrace ();
error("IO error creating socket ");
try{
inStr = new BufferedReader(new InputStreamReader(connect.getInputStream()));
outStr=new DataOutputStream(connect.getOutputStream());
}catch (IOException ex){
error("IO error getting streams");
ex.printStackTrace();
String codeln=new String("\n");
try{
outStr.flush();
outStr.writeBytes("!@*&!@#$%^");//code for sending logged in users
outStr.writeBytes(codeln);
outStr.write(13);
outStr.flush();
String check="qkpltx";
String receive=new String();
try{
while((receive=inStr.readLine())!=null) //the statement that causes the exception
if(receive.equals(check))
break;
else
     str[r]=receive;
     r++;
}catch(IOException ex){ex.printStackTrace();error("Error reading from socket");}
catch(NullPointerException ex){ex.printStackTrace();}
} catch (IOException ex){ex.printStackTrace();
error("Error reading from keyboard or socket ");
try{
inStr.close();
outStr.close();
connect.close();
}catch (IOException ex){
error("IO error closing socket");
for(int l=0,k=1;l<r;l=l+2,k++)
if(!(str[l].equals(name)))
stud[k]=" "+str[l];
else
k--;
public class Buttonhandle implements ActionListener
public void actionPerformed(ActionEvent e) {
//chat with the selected user;
public class MenuItemHandler implements ActionListener
public void actionPerformed(ActionEvent e)
String cmd=e.getActionCommand();
if(cmd.equals("Disconnect"))
//Disconnect from the server
else if(cmd.equals("Change User"))
     //Disconnect from the server & call the login window
else if(cmd.equals("View Connection Details"))
//show connection details;
public class WindowHandler extends WindowAdapter
public void windowClosing(WindowEvent e){
//Disconnect from server & then exit;
System.exit(0);}
I�ll be very thankful if anyone corrects the mistake for me.Please help.

You're connecting to the server twice. After you've successfully logged in, pass the Socket to the Messenger class.
public class Messenger {
    Socket connect;
    public static void main(String args[]) {
        Messenger mes = new Messenger(args[0]);
    Messenger(Socket s, String strg) {
        this.connect = s;
        CreateWindow();
        setupEvents();
        LoginData(strg);
        fram.show();
}

I have a problem with my microphone, please help if you can

Hello everyone.
I have a problem with my microphone. After i bougth Creative's sound card "Sound blaster X-Fi Xtreme Audio" and installed it, everything was allright and my microphone was working great, but this was when I used Windows XP, when i started to use Windows 7, it suddenly was very weak and i almost didn't heard it.
Currently, I have bouth Windows XP and Windows 7 installed, so I know the microphone is working when I am switching up between the OS, because it still works good on Windows XP.
If you can help please tell me.
I am using Windows 7 64 bit, I made sure the flexijack settings in the Audio controll panel are set to microphone and not line in, in the Windows 7 audio controll I have set the microphone volum to maximum and made sure it is configured properly.
Thank you for helping.

Originally Posted by tav2000
Hello everyone.
I have a problem with my microphone. After i bougth Creative's sound card "Sound blaster X-Fi Xtreme Audio" and installed it, everything was allright and my microphone was working great, but this was when I used Windows XP, when i started to use Windows 7, it suddenly was very weak and i almost didn't heard it.
Currently, I have bouth Windows XP and Windows 7 installed, so I know the microphone is working when I am switching up between the OS, because it still works good on Windows XP.
If you can help please tell me.
I am using Windows 7 64 bit, I made sure the flexijack settings in the Audio controll panel are set to microphone and not line in, in the Windows 7 audio controll I have set the microphone volum to maximum and made sure it is configured properly.
Thank you for helping.
Hi tav,
While waiting for other forum members to post..
Perhaps you havent installed the latest drivers yet? (link HERE)
Cheers!

Problems with Boot Camp - PLEASE HELP!

I'm having problems with Boot Camp. Here's what's happening. I ran Boot Camp Assistant, partitioning a 32GB BOOTCAMP drive. I insert my copy of XP and start the installation. My MBP restarts and boots into the Windows Setup. I let it run through the initial actions. I press ENTER to proceed, F8 to accept the license agreement, then when I get to the part where I should be able to select the Partition 3 BOOTCAMP drive (as it says in the Apple Boot Camp Manual) there is only a Partition 1 Unknown drive. It is the only drive to choose from and its a C: drive. I can't figure out why after I run boot camp the partitioned drive doesn't appear as an option in the windows installation. Please help!!!
Message was edited by: CarlConti08

Boot into Leo, start Disk Utility and you should see two partitions, your Leo partition and a Fat32 partition of 32GB at the end of the drive.
If not, boot camp didn't create it for some reason. If it is there then check it with DU and make sure its OK.
While your in there give it a name so you can easily identify it in your windows installer.
If there is no partition, create one using Disk Utility at the END if the drive. make sure you create it as a msdos (Fat32) partition and give it a name. The name cannot be more than 11 characters must be comprised of numbers and/or letters (no special characters).
Verify it before exiting DU.
Put in windows install disk, reboot - hold option key after the chime until you see the boot screen - select windows CD to begin install.
Don't forget to install Leo windows drivers after installing windows.
Kj

PROBLEM WITH NEW ROW --- PLEASE HELP

Hello,
I've had it with the framework. It's been 20 hours and counting that I am trying to insert/validate a new record.
Things just don't work as advertised.
Here's the situation:
I have an entity object with various validation rules in the validate() method.
Then I have a simple JSP page to insert new records.
At submit of button, I follow the framework's default
create new row and fill it up, with the difference
that i need to validate the row as soon as I fill it up
with data from the http request:
<jbo:OnEvent name="Create">
<jbo:Row id="newrow" datasource="ds" action="CreateInRange" >
<% try { %>
<jbo:SetAttribute dataitem="*" />
<%
newrow.validate(); //******* NOTICE HERE THAT I VALIDATE
} catch (JboException ex) {
newrow.remove();
throw ex;
} %>
</jbo:Row>
</jbo:OnEvent>
Unexpected behavior 1: If the validation fails,
newrow DOES NOT GET REMOVED!!!! I know this
since when I view data thru a data table component,
the row is there WITH THE ERROR INFORMATION set!!.
If I do a commit transaction, then the erroneous information ENDS UP IN THE DATABASE!!!!!
Unexpected behavior 2: If I do a rollback, every
call to subsequent pages results in a jsp error:
java.lang.ClassCastException: oracle.jbo.html.jsp.datatags.OnEventTag
PLEASE HELP.
Chris Lambrou

I have (hopefully) found a solution to my part of this problem. I was getting the ClassCastExceptions on any page with a <jbo:row> tag after doing a failed DML action. I have tested this with the delete event. (btw, I am using jdev9.0.3.3 w/ BC4J/JSP) Before what I was doing was this:
<% try { %>
<jbo:Row id="delrow" datasource="ds" rowkeyparam="jboRowKey" action="Delete" />
<% } catch (JboException jboEx) { %>
do something
<% } catch (Exception ex) { %>
uh-oh, this is bad
<% } %>
If I removed the try/catch block everything worked fine. Unfortunatlely, I need to try/catch block here. To work around the problem I changed the code to this:
<% Row rowDelete = ds.getRowFromKey(params.getParameter("jboRowKey")); %>
<% try { %>
<%
rowDelete.remove();
%>
<% } catch (JboException jboEx) { %>
do something
<% } catch (Exception ex) { %>
uh-oh, this is bad
<% } %>
The second bit of code does the same thing (but it doesn't use a bean like I think <jbo:Row> does) and it doesn't cause the ClassCastError on subsequent errors.
I really hope this helps someone else because it took me forever to get a workaround!
~Rob Lundeen

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