I started working on a project and I saw some methods with this With prefix and I'm wondering if this refers to a known pattern.
Does anyone know of this naming pattern?
1 Answer
I've seen a with prefix used in a couple of different ways that may be similar to what's being done in the codebase you're working on.
Joshua Bloch's Builder pattern
var myobj = MyObj.builder() .withProperty1("property 1 value") .withProperty2("property 2 value") .build(); Clone immutable objects
var myImmutableObj = new MyImmutableObj("property 1 value", "property 2 value"); var myImmutableObjClone = myImmutableObj.withProperty1("different property 1 value"); 
- Very interesting, I think they are using both approaches in this project. You nailed it, thanks!underthevoid– underthevoid2021-07-08 17:34:23 +00:00Commented Jul 8, 2021 at 17:34
- 3To be clear, this is Joshua Bloch's Builder Pattern. Not the GoF Builder Pattern.candied_orange– candied_orange2021-07-08 19:33:36 +00:00Commented Jul 8, 2021 at 19:33
- @candied_orange are both of them called "builder pattern"?underthevoid– underthevoid2021-07-08 20:08:15 +00:00Commented Jul 8, 2021 at 20:08
- @underthevoid yes. So much so that I never just say builder pattern anymore without qualifying. So much so that I nag other people about it. I hate names that require disambiguation. So much that it can make me fail to upvote an otherwise decent answer while I wait for an edit.candied_orange– candied_orange2021-07-08 21:58:41 +00:00Commented Jul 8, 2021 at 21:58
- 1@svidgen didn't want to be hasty and start an edit war. But Mike's been gone for 6 hours now. So...candied_orange– candied_orange2021-07-09 02:27:01 +00:00Commented Jul 9, 2021 at 2:27
voidand simply set fields (essentially setters); and B) methods that set fields and returnsthis.