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--- java:home [2014/10/19 21:48]
djo Moving FP to its own top level page
+++ java:home [2016/09/18 21:16]
djo [Getting started]
@@ Line 1: / Line 1: @@
-====== On the Server Side ======
+====== Data-first Applications ======
-Server-side development is changing too, but differently and more slowly than on the client.  Some forces I see changing server-side development are:
+This is a tutorial/vision page describing the state of the art as I see it today.
-===== Multi-core programming =====
+Data has become more important than code.
-Multi-core is here.
+  * Collecting it
+  * Analyzing it
+  * Storing it
--way servers are common these days.  4-way cell phones are here.  The laptop on which I'm writing this blog has 4 cores; so does my tablet.
+The web plus mobile apps are the user-interface of today's stack.  Virtual Reality and Augmented Reality are becoming important quickly as a platform in their own right.  Javascript has become more important than Java, [[https://github.com/eclipsesource/J2V8|both on the server and inside the browser]].
-But software development still mostly is written to utilize a single thread of execution.
+[[https://www.heroku.com|Heroku]], [[https://aws.amazon.com/|Amazon Web Services]], and similar compute and storage services make it possible for anyone with an idea to write applications that anybody in the world can use, and to take advantage of the data collected by those applications.
-The more cores we have in our hardware, the more pronounced this mismatch will become, which will pressure the industry into changing software-development practices to take advantage of the new power.
+ ===== Getting started =====
-===== Functional Programming =====
+I believe that Clojure and Clojurescript (Clojure inside the web browser) provide an opportunity to learn to develop web applications unlike anything that has come before.  This is because Clojure is a first-class functional programming language, and because that same language works everywhere.
-Functional programming (FP) is one promising means of taking advantage of multi-core processors.  When done in a pure manner, often the compiler can parallelize certain tasks automatically.  Other operations--such as applying a single function over a large collection of data--can also be parallelized automatically if coded in a functional style.
+A programmer can learn Javascript and do similar things, but I believe that Clojure and Clojurescript can take a programmer farther than Javascript can.
-Please see [[fp:home|Functional Programming Home]] for an index of my articles on FP.
+Here is my (current) favorite stack for building and deploying data-first applications.  To those who have asked me to share a "way in" to modern software development, this is my list of topics to search on Google.
+  * Git / Github
+  * Basic Linux/Unix command line skills
+  * jitpack.io to share libraries with myself and others
+  * Clojurescript and Javascript for building single-page web applications
+  * Hoplon, Javlin, and Castra to create a unified programming environment on the web browser and inside the server using Clojure and Clojurescript.
+  * A-Frame for virtual reality applications delivered via the web
+  * Clojure and/or Scala (server)
+  * Boot and Leiningen for building libraries
+  * Pouchdb (both inside the browser and inside the server)
+  * SQL as needed.  Postgres is decent as a standalone database.  If you really have to scale to big data moving fast, consider Cassandra backed by Amazon S3 on AWS.  Use Netflix projects available on Github to wire them together.
+  * The j2v8 library for integrating the best of Node.js and Java inside a server
+===== Functional Programming =====
-===== Server-side Javascript =====
+[[fp:home|Functional programming]] (FP) helps process data in parallel--either on multiple cores or across a cluster.
-Javascript can be used as a functional language, and using Node.js can run on the server side.  I have little contact with it and currently work in a large Java shop.  But to the extent that it crosses my radar, I'll make notes about that here.
+That topic is sufficiently deep that it deserves a page of its own.  :-)
 ===== General Java =====
-Here are some general notes about Java that are applicable to server-side developers.
+General notes about JVM development:
    * [[blog:In Java 5, 0 is not always equal to 0]]
    * [[Code Bloat Thread from E4 mailing list]]

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