groovy Closure Memoize Methods Simple memoization
Example
def count = 0
nonmemoized = { long n -> println "nonmemoized: $n"; count++ }
nonmemoized(1)
nonmemoized(2)
nonmemoized(2)
nonmemoized(1)
assert count == 4
def mcount = 0
memoized = { long n -> println "memoized: $n"; mcount++ }.memoize()
memoized(1)
memoized(2)
memoized(2)
memoized(1)
assert mcount == 2
