Author Archives: Harmeet Singh(Taara)

Back2Basics: For Expression Served From Scala Magic Box – I.


In Scala, lots of the things are kind of a magic for Java developers. Sometimes this magic amazes the code but sometimes it has ruined the developer’s life. Today we are going to discuss one of the magic called “For … Continue reading

Posted in Functional Programming, Java, Scala | Tagged , , , , , , , , , , | 2 Comments

Back2Basics: Pass-By-Name and HOF in Scala argue as a Husband And Wife.


Scala has lots of features and one of the features always confused me called “pass-by-name” argument.  For me pass by name is same as “higher-order-function” but different from just syntax otherwise everything is same. While googling out for their difference, I … Continue reading

Posted in Functional Programming, Scala | Tagged , , , , , , , , | 2 Comments

Back2Basics: Do you know Scala Eta-Expansion and HOF Chemistry?


I am working on Scala from last 2 years, and pretty confident about Scala concept like HOF, Currying and more. But Recently again looking into the HOF (Higher Order Functions) in Scala. I am pretty confident, HOF is “Passed a … Continue reading

Posted in Functional Programming, Java, Scala | Tagged , , , , , , , , , , , , | 2 Comments

Developers Needs SDKMAN Not Super-Man


Every developer has pain for setup development environment to his/her machine with lots of the setups. Sometimes, the pain goes beyond while we need to test same application on multiple versions of SDKs or virtual machines. If you are a … Continue reading

Posted in apache spark, buildtools, Java, linux, sbt, Scala, Spark | Tagged , , , , , , , , , , , , , , , , , , , , | 2 Comments

Knolders review of #venkat_50_50_tour at #DelhiJUG17 meetup


Dr. Venkat Subramaniam celebrates his 50th anniversary with distributing his smiles throughout the world’s Java User Groups (JUG) meetups, conferences, and events. Recently, he was in India and Delhi-NCR Java User Group organized one stop meetup for him. Needless to say, core to our … Continue reading

Posted in event, Functional Programming, Java, Reactive | Tagged , , , , , , , , , , , | 3 Comments

Simple Things You Can Learn From Cassandra Nodetool (Monitor/Manage) For DC/OS


Cassandra native tool called nodetool is used for monitoring and managing cassandra cluster for dcos Continue reading

Posted in Best Practices, big data, Cassandra, cluster, NoSql | Tagged , , , , , , , , , , , , , | 4 Comments

Cinnamon: Way For Monitoring & Metrics Generation for Akka ActorSystem


We are developing huge applications and deployed on multiple virtual machines and clusters. For monitoring applications, we need to enable logs into our application and analysis that logs with help of some tools like elastic stack. But !! what if … Continue reading

Posted in #telemetry, Akka, Metrics, Monitor, Scala | Tagged , , , , , , , , , , , , , | 1 Comment

Knolx – Java 9 Modulatiry


Hi all, Knoldus has organized a 30 min session on 28th May 2017 at 4:05 PM. The topic was Java 9 Modularity. Many people have joined and enjoyed the session. I am going to share the slides and Video here. Please … Continue reading

Posted in Java, jlink, modularity, Scala | Tagged , , , , | Leave a comment

Reverse engineering using Slick 3.2 and Scala


Sometime, we have requirements for create classes corresponding to the existing database or Sometimes, in our initial phase of project, we are going to design database and tables first, after that, we are going to create classes for mapping our … Continue reading

Posted in Functional Programming, Reactive, Scala, Slick | Tagged , , , , , , , , , , , , | 3 Comments

Scala Trait and Mixin – Points to Remember


Trait can be viewed not only as interfaces in other languages, but also as classes with only parameterless constructor. Whenever there is some code in trait, the trait is called mixin. trait Alarm { def trigger(): String } In scala … Continue reading

Posted in Best Practices, Functional Programming, Scala | Tagged , , , , , , , , , , , , , | 1 Comment