How to write a conditional collect in groovy?

Question

Imagine I have this structure:

class Foo {    String bar } 

Now imagine I have several instance of Foo whose bar value is baz_1, baz_2, and zab_3.

I want to write a collect statement that only collects the bar values which contain the text baz. I cannot get it to work, but it would look something like this:

def barsOfAllFoos = Foo.getAll().bar assert barsOfAllFoos == [ 'baz_1', 'baz_2', 'zab_3' ] def barsWithBaz = barsOfAllFoos.collect{ if( it.contains( "baz" ) { it } ) } // What is the correct syntax for this? assert barsWithBaz == [ 'baz_1', 'baz_2' ] 

Answer 1

You need findAll:

barsOfAllFoos.findAll { it.contains 'baz' }