Stream

Join this community to post or comment

Sebastian Nozzi
moderator

Articles, Podcasts, Talks  - 
 
This is not a talk about Scala itself, but I could not help thinking "but... this is 100% what Scala is good for!".

A very recommended talk about software design & testing which, unknowingly, showcases many of the aspects that make Scala so great.

#softwaredevelopment   #testing   #scala   #erlang   #haskell   #actors  
This talk is about using simple values (as opposed to complex objects) not just for holding data, but also as the boundaries between components and subsystems. It moves through many topics: functional programming; mutability's relationship to OO; isolated unit testing with and without test ...
2
Add a comment...

John Sullivan

Libraries  - 
 
psyched to talk next month at the Twin Cities Scala meetup! https://www.meetup.com/tc-scala/events/233380412/
1
Add a comment...

Paddy lock

Articles, Podcasts, Talks  - 
 
A High Level Overview Of #Scala Programming Language

In this article we will discuss on overview of scala programming language the concepts on Object oriented and functional programming.
1
Add a comment...

Gabriel Volpe

Articles, Podcasts, Talks  - 
 
Check out my new blog post where I talk about Type safety on Akka actors using Typed Actors! #scala   #akka  
Hi everybody! On these days I had a break and I was able to investigate something different from work not related to streams and I discovered this library Typed Actors by @knutwalker which I liked …
5
1
Gabriel Volpe's profile photoSebastian Nozzi's profile photo
3 comments
 
Great, thanks for the pointers!
Add a comment...

Eduo Shaun

Articles, Podcasts, Talks  - 
 
Learn How To Use #functions And #methods In #scala
Scala provides both methods and functions to organize code and accomplish tasks. Although methods and functions are sometimes used interchangeably to refer to the same thing they are different. Methods belong to a class with a name, signature and annotations while a function is a self contained object that is assignable to a variable. One
In this blog we will discuss on various functions and Methods in Scala and the differences between methods and functions in Scala
1
Add a comment...

Jim O'Flaherty

Distributed Computing  - 
12
1
Jim O'Flaherty's profile photo
 
The download page is finally working. Been waiting all day for it to be updated so it could be properly downloaded!
http://spark.apache.org/downloads.html
Add a comment...

Jim O'Flaherty

Core Language  - 
 
I really liked the idea of using annotations to indicate if a method or function is "pure" (no side effects and referentially transparent) or "impure" (has side effects or not referentially transparent). I saw a SlideShow referencing a 2.10 compiler plug-in. However, it hasn't been touched in 3 years. Any chance there is an update for 2.11? And does anyone know if there is plans for something like this in the coming 2.12?
http://lrytz.github.io/slides/lamp-lara-efftp.html#/
2
Jim O'Flaherty's profile photoAlexey Raga's profile photo
10 comments
 
@):- +Ben Kyrlach​ thanks for you educated care about my needs and for suggesting the best solution in no time! :-) 
Add a comment...

Alex Fruzenshtein

Core Language  - 
 
It's hard to write about such simple topics, but I tried to explain it for one of my friends and as a result published my thoughts to the blog :)
Overview of pattern matching syntax and examples in scala. Look how it can be used in common situations and with collections.
7
2
Ewan Slater's profile photoAlex Fruzenshtein's profile photo
2 comments
 
+Ewan Slater Thanks =D
Add a comment...

John Sullivan

Libraries  - 
 
Your persistence layer for #Scala / #NoSQL applications now has a getting started guide. #longevity   #dddesign   #AkkaHTTP  
I'm happy to announce that the Getting Started Guide for longevity is now available. It walks through a sample application called Simple Blogging, which uses longevity on the back end, and Akka HTTP on the front. This guide w...
1
Add a comment...

Me Me

Libraries  - 
 
Hi
Problem in install framework lift
./sbt

Maboud:
:: problems summary ::
:::: WARNINGS
module not found: org.scala-sbt#sbt;0.13.7

==== local: tried

/root/.ivy2/local/org.scala-sbt/sbt/0.13.7/ivys/ivy.xml

— artifact org.scala-sbt#sbt;0.13.7!sbt.jar:

/root/.ivy2/local/org.scala-sbt/sbt/0.13.7/jars/sbt.jar

==== activator-launcher-local: tried

file:/root/.activator/repository/org.scala-sbt/sbt/0.13.7/ivys/ivy.xml

==== activator-local: tried

file:/opt/activator/repository/org.scala-sbt/sbt/0.13.7/ivys/ivy.xml

==== Maven Central: tried

https://repo1.maven.org/maven2/org/scala-sbt/sbt/0.13.7/sbt-0.13.7.pom

— artifact org.scala-sbt#sbt;0.13.7!sbt.jar:

https://repo1.maven.org/maven2/org/scala-sbt/sbt/0.13.7/sbt-0.13.7.jar

==== typesafe-releases: tried

http://repo.typesafe.com/typesafe/releases/org/scala-sbt/sbt/0.13.7/sbt-0.13.7.pom

— artifact org.scala-sbt#sbt;0.13.7!sbt.jar:

http://repo.typesafe.com/typesafe/releases/org/scala-sbt/sbt/0.13.7/sbt-0.13.7.jar

==== typesafe-ivy-releasez: tried

http://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/sbt/0.13.7/ivys/ivy.xml

::::::::::::::::::::::::::::::::::::::::::::::

:: UNRESOLVED DEPENDENCIES ::

::::::::::::::::::::::::::::::::::::::::::::::

:: org.scala-sbt#sbt;0.13.7: not found

::::::::::::::::::::::::::::::::::::::::::::::


:::: ERRORS
Server access Error: Connection timed out url=http://repo.typesafe.com/typesafe/releases/org/scala-sbt/sbt/0.13.7/sbt-0.13.7.pom

Server access Error: Connection timed out url=http://repo.typesafe.com/typesafe/releases/org/scala-sbt/sbt/0.13.7/sbt-0.13.7.jar

Server access Error: Connection timed out url=http://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/sbt/0.13.7/ivys/ivy.xml


:: USE VERBOSE OR DEBUG MESSAGE LEVEL FOR MORE DETAILS
unresolved dependency: org.scala-sbt#sbt;0.13.7: not found
Error during sbt execution: Error retrieving required libraries
(see /root/.sbt/boot/update.log for complete log)
Error: Could not retrieve sbt 0.13.7



Please help
1
Mikołaj Sochacki's profile photoSergey Scherbina's profile photo
2 comments
 
+Me Me Most probably, you are behind a proxy.
If so, you need to add JVM properties into file sbt/conf/sbtconfig.txt

-Dhttp.proxyHost=<proxy.host>
-Dhttp.proxyPort=<proxyPort>
-Dhttps.proxyHost=<proxy.host>
-Dhttps.proxyPort=<proxyPort>

where instead <..> you must write actual values for them

Add a comment...

About this community

A Google+ community for articles and discussions related to the Scala programming language. (picture (c) Miles Sabin) Posts and conduct should follow the Scala Code of Conduct - http://docs.scala-lang.org/conduct.html This includes: no job postings.
World Wide

Sebastian Nozzi
moderator

Web App. Development  - 
 
Excellent piece of advocacy for Scala.js by top-community member Li Haoyi. Very good read.

#scala   #scalajs   #web   #javascript   #python   #coffeescript   #clojure   #clojurescript   #gwt   #ruby   #typescript  
Three years ago, I downloaded the nascent Scala.js compiler and tried to use it on a toy project. Since then, it has matured greatly: the compiler itself is rock-solid. It has a huge ecosystem of libraries. It has a vibrant community, been adopted by some of the largest commercial users of the ...
16
Add a comment...

Yasser Shah

Web App. Development  - 
 
Watch "eltmon" creating a Music Engine that senses a groups music mood, in Scala https://www.livecoding.tv/eltmon/videos/7VyAo-auricle-group-music-recommendation-engine-345
2
Add a comment...

Joseph Lust

Core Language  - 
 
Confusing misuses of Unit and the loss of type checking.
10
Atamert Ölçgen's profile photo
 
FYI; case object Good extends Result
Add a comment...
 
My new utility framework to serialize Typesafe config as case types
https://github.com/prassee/conf2case
conf2case - A micro library to convert config file to case classes
1
Add a comment...

Jim O'Flaherty

Distributed Computing  - 
 
It looks like Spark 2.0 RC5 was voted on Friday (Jul/22) to become the official 2.0 release! It's being packaged up this week in preparation for the official release (the actual public release date has not been officially announced).
http://apache-spark-developers-list.1001551.n3.nabble.com/VOTE-Release-Apache-Spark-2-0-0-RC5-tp18367p18421.html
1
Add a comment...

Gabriel Volpe

Articles, Podcasts, Talks  - 
 
Some corners have to be cut in order to release software into the world, but writing bad code in the name of "MVP" is unproductive.
6
1
Add a comment...

Gabriel Volpe

Articles, Podcasts, Talks  - 
 
#fs2   #scalaz   #streams  
Hi everybody! Last April I wrote this post about Scalaz Streams where I explained how we consume orders from Kafka, persist them to Cassandra, call a web service to update the prices and finally pu…
2
Gabriel Volpe's profile photoGary Coady's profile photo
7 comments
 
Looks great! Please consider following up on the gitter channel, if you have any more questions :-)
Add a comment...

Divan Visagie

Web App. Development  - 
 
Getting started with Finatra and Swagger
1
Add a comment...