How to find the length of a viewIntObject

Summary:

How to find the length of a viewIntObject. Below is the code snippet. Need to find how many records this has returned, so we can avoid the while loop since the while loop execution takes too much time.

def viewIntObj1=newView('Subscription')
viewIntObj1.appendViewCriteria("SubscriptionId = '" + SubscriptionId + "'")
viewIntObj1.executeQuery()
viewIntObj1.reset()

while (viewIntObj1.hasNext()){

//other code here

}

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Code Snippet (add any code snippets that support your topic, if applicable):

def viewIntObj1=newView('Subscription')
viewIntObj1.appendViewCriteria("SubscriptionId = '" + SubscriptionId + "'")
viewIntObj1.executeQuery()