scala

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Get form parameters from a post request using spray/scala

I\'m really new with all this Scala/Spray. With some testing I was able to get parameters from a Get request using the parameters function. However I\'m trying to fetch some parameters sent from a POS[详细]

2023-04-12 21:14 分类：问答
What are the weaknesses in using Immutability + Actor model for concurrency programming?

While building a large multi threaded application for the financia开发者_如何学JAVAl services industry, I utilized immutable classes and an Actor model for workflow everywhere I could. I\'m pretty ple[详细]

2023-04-12 21:06 分类：问答
Why does ShutdownHookThread 'setDaemon true'

I recently needed to add a shutdown hook to a Scala app I have, and I discovered that Scala provides a helper for this called ShutdownHookThread.In its source I noticed that it sets the new thread to[详细]

2023-04-12 20:55 分类：问答
Emacs load-path scala-mode

I am trying to install ENSIME for emacs. On the first step, when I integrate the ./misc/scala-tool-support/emacs .elc files, the instructions say to[详细]

2023-04-12 19:56 分类：问答
summing a transformation of a list of numbers in scala

I frequently need to sum the transformation of a list of numbers in Scala.One way to do this of course is:[详细]

2023-04-12 19:56 分类：问答
Scala Generics and Numeric Implicits

I need to pass two functions as parameters to a scala function. That function should then evaluate them and get a number from them where it will then operate on. This number can be either a Int, Doubl[详细]

2023-04-12 19:33 分类：问答
Mixin in a trait into a package object twice

While this works as expected: trait A trait B extends A object C extends A with B The following yields illegal cyclic reference involving trait B :[详细]

2023-04-12 19:10 分类：问答
How should I extend a case class if a derived class is meant to have the same parameter and shouldn't override?

case class Message(xml : Node) { def toXML : Node = xml } case class开发者_运维知识库 ReqValidationMessage (xml : Node) extends Message(xml){[详细]

2023-04-12 18:22 分类：问答
How to use a Scala IDE (Eclipse or NetBeans based) to develop a Scala Lift web application with SBT?

I\'ve switched to a plain text editor and console SBT from NetBeans becau开发者_如何转开发se the last was enforcing Ant and used to have some other troubles with Scala. Now, as I have to explore other[详细]

2023-04-12 16:56 分类：问答
How to send a 404 (or another specific) HTTP error in Lift?

As my web application is currently a REST-only system (with no pages meant for us开发者_如何学Goer view) I\'d like to send a 404 HTTP error when index page is requested. How to do this in Lift?Does th[详细]

2023-04-12 16:15 分类：问答