Delayed scrolling with a scrollbar

I am trying to create a scrollbar where the view will not move until the mouse button is released. In other words, the user can move the scrollbar up and down, but nothing happens to the view until the mouse button is released and then the view is updated based on the scrollbar.
I'm trying to use this for a table that retrieves cache blocks of data as needed. When the table model's getValueAt method is called, it checks if the value is cached. If it is not cached it retrieves the data across a network. I'm using lots of data and do not want to retrieve all the data at once (takes too long). If I use the regular scrollbar, the scrolling lags because of the time it takes to get the data for each small movement of the scrollbar.
I'm not really sure where to start on this. I'm just looking for ideas on how to do this and any suggestions on better methods. Thanks in advance.

I found it here http://www.plcs.net/downloads/index.php?action=view&filename=fly_wheel.zip&directory=Allen_Bradley&P...
There's a text file within the zip that contains the registration information. (This app was made free before it was abandoned)

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