Hi. I am working on a web project.In this project there is a bid system(people offers a price for products.) Each product have a time attribute so that a user can offer a price only before this time comes.Also every product has an "isClosed" attribute that indicates whether this particular product can be offered or not.Therefore , periodically I should check which products have their "isClosed" should be "true". How can I execute a program periodically? Or if anybody has a better idea rather than my incomplete solution :) , please tell me.
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