java - why reactive programming replacing observer pattern -

reactive programming uses idea of observer pattern . not looking reasons why have use reactive approach instead of observer pattern.i seeing lot of similarities between observer pattern , reactive approach. why use reactive programming deprecating observer pattern?

there many reasons, first take be: reactive programming much more using observer pattern.

see reactive manifesto example. makes clear reactive programming has @ least 4 important corners - responsiveness, resilience, elasticity, , "message-busing". fundamental qualities; , none of them (directly) leads "observer pattern".

in essence, reactive programming establishing whole new set of practices/patterns; reducing "replacing observer patterns" put ... wrong.

in on words: think assessment over-simplification ignoring major parts of makes reactive programming.

of course, when using observer pattern on place solve place, living in "reactive world" degree.