What is the name of the method whose output depends only on the input and state of the object?

Question

I know the term "pure function", which describes a function whose output depends only on input.

Is there a similar name for a method (function of an object) whose output depends only on the input and state of the object?

+3

rico Mar 14 '11 at 12:57

2 answers

fredoverflow · Answer 1 · 2011-03-14T13:38:36+0000

Bertrand Meyer , inventor of the Eiffel programming language and author of Object-Oriented Software Engineering , calls them "query methods."

dantuch · Answer 2 · 2011-03-14T13:05:36+0000

I would call it the state method

State (design-pattern), ( )