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Could you lock the object before running the program? A 'transaction' becomes use command call to allocate (lock) an object, run the program then use command call to deallocate (unlock) the object. The allocate command has a timeout so you could wait for the object to be freed or fail right away. If you wait, the lock could still fail then you re-try or put up an error message. David Wall AS/400 Toolbox for Java Duane Kehoe <dkehoe@weycogroup.com>@midrange.com on 05/10/2001 01:47:51 PM Please respond to JAVA400-L@midrange.com Sent by: owner-java400-l@midrange.com To: JAVA400-L@midrange.com cc: Subject: AS/400 Program Call Hello, I have a program, that resides on a server and is called by serveral clients. Further one thread of this program calls programs on an AS/400 that create a file, do some work, and returns to the java thread. My problem is this: I need to use the same file for all instances of the program calls on the AS/400 and I can not have more than 1 client calling the AS/400 programs at once as the file can not be overwritten by client 2 while client 1 is running the AS/400 programs. I have syncronized the method of the thread but do not feel like this is sufficient. Does anyone have a suggestion. Thanks in advance. -- ____________________________________________________________ Long live the Penguin!!! Duane Kehoe Phone # 414.908.1814 Programmer/Analyst Fax # 414.908.1814 Weyco Group, Inc. Email: dkehoe@weycogroup.com +--- | This is the JAVA/400 Mailing List! | To submit a new message, send your mail to JAVA400-L@midrange.com. | To subscribe to this list send email to JAVA400-L-SUB@midrange.com. | To unsubscribe from this list send email to JAVA400-L-UNSUB@midrange.com. | Questions should be directed to the list owner: joe@zappie.net +--- +--- | This is the JAVA/400 Mailing List! | To submit a new message, send your mail to JAVA400-L@midrange.com. | To subscribe to this list send email to JAVA400-L-SUB@midrange.com. | To unsubscribe from this list send email to JAVA400-L-UNSUB@midrange.com. | Questions should be directed to the list owner: joe@zappie.net +---
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