Groovy - expanding a list into closing arguments

Question

Is it possible to have a list and use it as an argument for the closure signature, and instead multiple variables? The reason is that I have to cause closure from java code, and Java code will not know what variables are required to close groovy.

This is best used with an example.

Say I have a “closure store” where each closure can have different signatures. EG:

closures = [ closureA: { int a, String b -> a.times { System.err.println(b); } }, closureB: { int a, int b, String c -> (a+b).times { System.err.println(c); } } ] 

Then I have a method that I am exposing for my java code to trigger these closures:

 def tryClosureExpansion(String whichClosure, Object ... args) { def c = closures[whichClosure] c.call(args) // DOESNT COMPILE ! } 

And this is Java, I would call this method as follows:

 // these calls will happen from Java, not from Groovy tryClosureExpansion("closureA", 1, "Hello"); tryClosureExpansion("closureB", 1, 5, "Hello more"); 

See above on a line that does not compile. It seems to me that groovy is 'groovy' is enough to handle something like that. Any alternative that can fly?

Answer 1

whether:

 c.call( *args ) 

Work? Not on the computer to check it