How can we save a data list in jsf?

How can we save a data list in jsf?

I have a code in jsf that fires a query in Data Base each time it is called, i have added a validation check to fire query only if list is not-empty but the list gets empty each time it is called again. I tried using save State but it did not help as other functions got hampered.. some one suggested me with page scope list.. any idea??

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