Change - Scala

Created on Jan. 13, 2013, 2:23 a.m. by Hevok & updated on Jan. 13, 2013, 2:29 a.m. by Hevok

**Scala** is a general purpose programming language designed (as a "better Java") to express common programming patterns in a concise, elegant, and type-safe way. ¶
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A class can be simply declared like this: ¶
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.. sourcecode:: scala ¶
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class ScalaUser(var name:String,var surname:String, var email:String){} ¶
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Getters and setters are easy to create: ¶
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.. sourcecode:: scala ¶
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val setters = tp.members.filter(m=>m.isMethod && m.asMethod.isSetter).map(m=>(cutSetterEnding(m.name.toString),m.asMethod)).toMap ¶
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Scala reads and writes as it would be normal English: ¶
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.. sourcecode:: scala ¶
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something should equal("sfsf") ¶
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It is a dynamically typed language and provides similar paradigms like Python. You can for instance simply iterate over a collection: ¶
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.. sourcecode:: scala ¶
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for{ ¶
item<-collection ¶
if item=="somevalue" ¶
if item.isSomething ¶
} yield item ¶
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It is even possible to iterate over multiple collection at the same time: ¶
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.. sourcecode:: scala ¶
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for{item1<-collection1 ¶
item2<-collection2 ¶
if item1=="somevalue" ¶
if tiem2>item1 ¶
} yield( item1.someProp,item2.someProperty) ¶
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A basic function/procedure looks like this: ¶
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.. sourcecode:: scala ¶
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def someFunction(param1, param2) = ¶
{ ¶
///do something ¶
(val1,val2) ¶
} ¶
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It is not hard to work with OrientDB. To open a database: ¶
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.. sourcecode:: scala ¶
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val db:ODatabaseDocumentTx = new ODatabaseDocumentTx(url) ¶
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To create a document and fill it with data. ¶
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In order to save any class to the database all you need is two lines of code, considering you have created an instance of your class somehow: ¶
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.. sourcecode:: scala ¶
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val doc = new ObjectDocument(myPojo) ¶
doc.save() ¶
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Where myPojo is an instance of any class created before. ¶
It do
wnes not work with nested classes yet, but works well with pojo's (classes with simple fields).


Comment: Corrected more typos.

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