One doubt on threads

Hi Techies,
Actually I am having one problem with TableModel and Threads. I have one server application which creates one thread for each client. It has one table that contains one row representing details of one client connection. It adds or deletes one row when client make or close connection with server respectively. The data is fed into the table through a list. The list is updated as a connection is added or lost. Here the server class has one static variable which will be incremented when ever any client closes the connection. It works fine when the clients are closed with some interval between them. But when two or more clients close the connection quickly, then the table shows corrupted data. One row data will appear in two rows. I think even before the other threads are updated themselves for first closed connection, the second connection close causes the data to be corrupted. I think there is some problem of multi threading. Can any one suggest any solution or guidance for this?
Edited by: JavaBreather on 18 Apr, 2009 4:33 PM

JavaBreather wrote:
Hi Techies,
Actually I am having one problem with TableModel and Threads. I have one server application which creates one thread for each client. It has one table that contains one row representing details of one client connection. It adds or deletes one row when client make or close connection with server respectively. The data is fed into the table through a list. The list is updated as a connection is added or lost. Here the server class has one static variable which will be incremented when ever any client closes the connection. It works fine when the clients are closed with some interval between them. But when two or more clients close the connection quickly, then the table shows corrupted data. One row data will appear in two rows. I think even before the other threads are updated themselves for first closed connection, the second connection close causes the data to be corrupted. I think there is some problem of multi threading. Can any one suggest any solution or guidance for this?
Edited by: JavaBreather on 18 Apr, 2009 4:33 PMI guess your code needs some kind of synchronization (synchronized) block. Either use synchronized list (even though I don't prefer this) or synchronize the block of code (operation) which updates table data.

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