Git Product home page Git Product logo

hot-cold-observable's Introduction

Hot-Cold-Observable

Cold Observable

Image of cold observable

  • Observable only emit item when has subscribe
  • It will emit again when has new subscribe
  • Example:
var coldObservable = Observable.create<Int> {
    for (i in 0..2) {
        println("Source Emit $i")
        it.onNext(i)
    }
}

coldObservable.subscribe({
    println("onNext, subscriber1: $it")
}, {})
coldObservable.subscribe({
    println( "onNext, subscriber2: $it")
}, {})
  • Result:
Source Emit 0
onNext, subscriber1: 0
Source Emit 1
onNext, subscriber1: 1
Source Emit 2
onNext, subscriber1: 2
Source Emit 0
onNext, subscriber2: 0
Source Emit 1
onNext, subscriber2: 1
Source Emit 2
onNext, subscriber2: 2

Hot Observable

Image of hot observable

  • Observable emit item when created
  • Observable doesn't again emit when has a new subscribe
  • Example
var coldObservable = Observable.interval(1, TimeUnit.SECONDS)
    .doOnNext {
        println("Emitted $it")
    }
var connectableObservable: ConnectableObservable<Long> = coldObservable.publish()

connectableObservable.connect()

Thread.sleep(2000)

connectableObservable.subscribe({
    println("onNext, subscriber1: $it")
}, {})

Thread.sleep(2000)
connectableObservable.subscribe({
    println( "onNext, subscriber2: $it")
}, {}))
  • Result
Emitted 0
Emitted 1
Emitted 2
    onNext, subscriber1: 2
Emitted 3
    onNext, subscriber1: 3
Emitted 4
    onNext, subscriber1: 4
    onNext, subscriber2: 4

Create Hot Observable

Recommend Projects

  • React photo React

    A declarative, efficient, and flexible JavaScript library for building user interfaces.

  • Vue.js photo Vue.js

    ๐Ÿ–– Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.

  • Typescript photo Typescript

    TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

  • TensorFlow photo TensorFlow

    An Open Source Machine Learning Framework for Everyone

  • Django photo Django

    The Web framework for perfectionists with deadlines.

  • D3 photo D3

    Bring data to life with SVG, Canvas and HTML. ๐Ÿ“Š๐Ÿ“ˆ๐ŸŽ‰

Recommend Topics

  • javascript

    JavaScript (JS) is a lightweight interpreted programming language with first-class functions.

  • web

    Some thing interesting about web. New door for the world.

  • server

    A server is a program made to process requests and deliver data to clients.

  • Machine learning

    Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.

  • Game

    Some thing interesting about game, make everyone happy.

Recommend Org

  • Facebook photo Facebook

    We are working to build community through open source technology. NB: members must have two-factor auth.

  • Microsoft photo Microsoft

    Open source projects and samples from Microsoft.

  • Google photo Google

    Google โค๏ธ Open Source for everyone.

  • D3 photo D3

    Data-Driven Documents codes.