Using KeyFilter Java Bean in Client Server Environment - Mr. Grover hope u r here !
Hello,
I will be grateful if some one can tell me how to use Keyfilter
java bean in Forms 6.0 client server environment.
Our requirement is to restrict entry in text field to just upper
case characters at key punch rather than after navigating out of
field.
Thanx in advance.
Are you using
http://otn.oracle.com/sample_code/products/forms/content.html#jbp
jc
Since the readme file shows exactly what you have to do.
Basically you set the implementation class for a text field to
point to this class and make sure this class is accessable.
Regards
Grant Ronald
Forms Product Management
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Ive been doing research on the best way to share scanned documents inside a client server application (PB11) but am not sure what's the quickest way to do it.
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Problem 2. When I modify the source code generated by Jdeveloper and come back to the design tab,
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maintained.
Now I modify the source code for the dropdownlist in order to add items to it.
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we have an SCM5.0 system using DP/SNP etc. Now we want to onboard another company (Joint Venture) and introduce DP first for them. We are investigating what it would mean to setup another client within our existing SCM system or what challenges we could run into (since the underlaying BW is not truly multi-client capable).
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We are about to install a BI, EP and SCM Development environment and we're considering using a server network to handle the communications between the servers so that it doesn't 'hit' the client network.
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Arwel.> My question is - is it still recommended to split client and server traffic across different networks in a SAP Java environment?
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Here is the piece of code i think it need to be changed.
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I just implemented something like this so I know what you are trying to do.
Basically TimerTask is an Abstract class, which means you can't make an instance of it. So TimeTask t = new TimeTask() won't work. Instead what you need to do is make your own class that extends TimerTask. You then need to implement the run() method which is abstract in TimerTask.
This sounds complicated at first, but it is very easy.
This is my DelayTimerTask:
import java.util.TimerTask;
*Author: Jon Parise
*email: [email protected]
public class DelayTimerTask extends TimerTask{
private boolean timeExpired = false;
/** Creates a new instance of DelayTimerTask */
public DelayTimerTask() {
timeExpired =false;
public void run(){
timeExpired =true;
public boolean isExpired(){
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}All this class does is set a flag when it is run.
The Timer class schedules a TimerTask, in this case a DelayTimer. When the scheduled time comes, everything in run is executed, which in this case sets the flag.
To schedule the task do this:
Timer delayTimer = new Timer();
DelayTimerTask delayTimerTask = new DelayTimerTask();
delayTimer.schedule(delayTimerTask,5000);
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Multithreaded sever client/server environment
I understand sockets, socket streams, but what puzzles me is how one client can send to the server and the server send only to remaining clients connected. I though getPort() and IDs but I am clueless. Can I send across a socket to the server for broadcast, what do I do to have the server broadcast? Just write to the socket and have all clients continuously reading? How would a client get a chat message to the other clients? Would the server just send them through the socket and if so, how to prevent sending it back to sender client?
I understand sockets and reader/writers through InputStream, OutputStream Scanner, and PrintWriter but the idea of what to do once clients connected to my multithreaded server baffles me. I want to be at one terminal and when I enter something on the sockets, all the remaining clients see it but just not connecting in my head.sabre150 wrote:
Always Learning wrote:
What am I missing?Don't know about what you are missing but I am missing a view of your code so can only guess at your problem. Guessing is not a very scientific approach to diagnosing problems.Sorry about that. I have posted it now ..
This is the server .... I want to capture the sockets for use to broadcast client messages but just not working right
public class is_TCPServer
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public static void sendToAll(byte[] bytes) {
for(Socket s: sockets)
try {
s.getOutputStream().write(bytes);
} catch (IOException ioe) {
// handle exception, close the socket.
sockets.remove(s);
public static void main(String[] args)
int port = 0;
boolean correctArguments = false;
Scanner keyboard = new Scanner(System.in);
// Process presence or absence of command-line arguments
if (args.length > 0)
if (args[0].trim().equalsIgnoreCase("-p") && args.length > 1)
try
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Integer.parseInt(args[1]);
System.out.println("Good Arguments");
correctArguments = true;
catch (NumberFormatException formatException)
// NAN
System.err.println("Bad arguments");
if (correctArguments)
// Success
port = Integer.parseInt(args[1]);
else
System.out.println
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System.out.print("Enter the desired port: ");
String temp = keyboard.nextLine();
try
port = Integer.parseInt(temp);
catch (NumberFormatException formatException)
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port = 8189;
else
// Set port to the default value
port = 8189;
System.out.println("Using default port: " + port);
try
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// Server awaits client connection to accept
Socket clientConnection = serverSocket.accept();
sockets.add(clientConnection);
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new ServerThread(clientConnection, chatLog);
Thread t = new Thread(r);
t.start();
System.out.println("Listening on port: " + port);
catch(IOException ioException)
ioException.printStackTrace();
* Handles the client input for one server socket connection
class ServerThread implements Runnable
private long initialTime;
private long finalTime;
private long days;
private long hours;
private long minutes;
private long seconds;
private long milliseconds;
private File chatLog;
private Socket incomingConnection;
public final long DAYS_CONVERSION = 24*60*60*1000;
public final long HOURS_CONVERSION = 60*60*1000;
public final long MINUTES_CONVERSION = 60*1000;
public final long SECONDS_CONVERSION = 1000;
public ServerThread(Socket aSocket, File chatLog)
this.chatLog = chatLog;
incomingConnection = aSocket;
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String elapsedTime = "";
// Days
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// convert to days
days = finalTime / DAYS_CONVERSION;
// remove the days from the total time
finalTime = finalTime % DAYS_CONVERSION;
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if (finalTime > HOURS_CONVERSION)
// convert to hours
hours = finalTime / HOURS_CONVERSION;
// remove the hours from the total time
finalTime = finalTime % HOURS_CONVERSION;
// Minutes
if (finalTime > MINUTES_CONVERSION)
// convert to MINUTES
minutes= finalTime / MINUTES_CONVERSION;
// remove the minutes from the total time
finalTime = finalTime % MINUTES_CONVERSION;
// Seconds
if (finalTime > SECONDS_CONVERSION)
// convert to seconds
seconds = finalTime / SECONDS_CONVERSION;
// remove the seconds from the total time
finalTime = finalTime % SECONDS_CONVERSION;
// compute the milliseconds
milliseconds = finalTime % 1000;
return elapsedTime += "Days: " + days + " Hours: " + hours +
" Mins: " + minutes + " Secs: " + seconds + " MS: " +
milliseconds;
public void run()
try
try
// Record initial time
initialTime = System.currentTimeMillis();
// Establish input socket stream
InputStream inputSocketStream =
incomingConnection.getInputStream();
// Connect to the input socket stream
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// Read the user name
String userName = readSocketStream.nextLine();
// Establish output socket stream
OutputStream outputSocketStream =
incomingConnection.getOutputStream();
// Connect to the output socket stream
PrintWriter writeSocketStream =
new PrintWriter(outputSocketStream);
// Establish a file writer to the chat log
PrintWriter fileWriter =
new PrintWriter(new FileOutputStream(chatLog, true));
// Open the chat log
Scanner fileReader = new Scanner(new FileInputStream(chatLog));
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// Write client input to a chat log file
while(!done && readSocketStream.hasNextLine())
// Read the socket stream until user is finished
String clientInput = readSocketStream.nextLine();
if (clientInput.trim().equals("DONE"))
done = true;
else
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synchronized(fileWriter)
// Write client stream to the chat log file
fileWriter.println(userName + ": " +
clientInput);
// Flush the writer
fileWriter.flush();
// Feedback on server end
System.out.println(userName + ": " + clientInput);
// Close the chat log file
fileWriter.close();
// Close the chat log file
fileReader.close();
Chat file not to deleted
File file = new File(chatLog);
// Delete the chat log file
file.delete();
// Record the final time
finalTime = System.currentTimeMillis() - initialTime;
// compute and send session time to the client
writeSocketStream.println("\nSession length: " +
elapsedTime(finalTime));
writeSocketStream.println();
System.out.println();
finally
System.out.println("Closing " +
incomingConnection.getInetAddress().getHostName() + ":"+
incomingConnection.getPort());
System.out.println();
// close the network connection
incomingConnection.close();
catch(IOException ioException)
ioException.printStackTrace();
}Edited by: Always Learning on Feb 18, 2012 3:34 AM -
Problems Securing Web.show_document using the java bean
Friends,
I know this is a hot topic, but after reading through a lot of the previous posts I can not find any reference to the problem I am encountering.
I am using Forms 10g Release 2 (10.1.2.0.2)
Basically I have implemented the bean as the white paper instructs but when the report is first run I am presented with a Oracle Reports screen that has the title
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Below the submit and cancel buttons there is the following message "REP-51018: Need database user authentication"
Once these details are entered the report runs ok and if the report is run again then this logon screen is NOT shown.
Thanks in advance for any help you can provide.
RegardsHi,
you describe the problem, but you don't provide any help for this forum to help you. What is the debug output of the Jinitiator console? Note that the bean uses JSObject class that doesn't work with newer versions of Netscape, so are you using Netscape? What is the machine address ? Is the machine with a domain name, or is it local host or IP in which case setting the cookie can be failed
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