groovy Memoized Functions Memoize on methods
Example
Since Groovy 2.2 groovy.transform.Memoized annotation is added to convenient memoize methods with simply adding the @Memoized annotation:
import groovy.transform.Memoized
class Calculator {
int sum(int x, int y){
println "sum ${x} + ${y}"
return x+y
}
@Memoized
int sumMemoized(int x, int y){
println "sumMemoized ${x} + ${y}"
return x+y
}
}
def calc = new Calculator()
// without @Memoized, sum() method is called twice
calc.sum(3,4)
calc.sum(3,4)
// prints
// sum 3 + 4
// sum 3 + 4
// with @Memoized annotation
calc.sumMemoized(3,4)
calc.sumMemoized(3,4)
// prints
// sumMemoized 3 + 4
