Hi Guy

Just assign the variable 

def comapreVersions = { a,b ->
        return getVersion(a).toInteger() <=> getVersion(b).toInteger()
}

and then use it in your sort:


list.sort(compareVersions)



Best regards,
Søren Berg Glasius
GR8Conf Europe organizing team

GR8Conf ApS
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From: Guy Matz <guym...@gmail.com>
Reply: users@groovy.apache.org <users@groovy.apache.org>
Date: May 16, 2016 at 17:28:34
To: users@groovy.apache.org <users@groovy.apache.org>
Subject:  re-using a comparison closure  

Hi!
I have to sort a list of strings based on a number within the string . . .  I 
am able to sort using something like:
list.sort( { a,b -> getVersion(a) <=> getVersion(b)})

I need to use this in a bunch of places in my code and was hoping to replace it 
with a method, like:
list.sort( compareVersions)

with compareVersions:
def compareVersions(a, b) {
  return getVersion(a).toInteger() <=> getVersion(b).toInteger()
}

putting the method (compoareVersions) into the sort as a param doesn't work.  
Anyone know what I'm missing?

Thanks!!
Guy

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