Groovy is a Java-based "next generation" programming language designed to improve Java while adding popular features from Smalltalk, Python and Ruby. Groovy syntax is a super-set of Java which allows Java developers to begin coding in Groovy as they learn it. Groovy is fully object-orientated, ...
2
votes
1answer
54 views
Testing Java as Groovy
We're looking into improving our testing process for some of our applications, and the idea that's been put forward it to write unit tests in Groovy and automatically run them with Maven.
The first ...
6
votes
4answers
457 views
What's special about currying or partial application?
I've been reading articles on Functional programming everyday and been trying to apply some practices as much as possible. But I don't understand what is unique in currying or partial application.
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1
vote
1answer
255 views
Does IntelliJ-Idea support Groovy 2.x?
I just tried IntelliJ-Idea 11.x and 12.x (EPA), but when I use Groovy 2.0.1 or 2.0.5, the code can't be run and there are some errors out there.
The Groovy plugin of idea has little information about ...
1
vote
2answers
160 views
New insights I can learn from the Groovy language
I realize that, for a programmer coming from the Java world, Groovy contains a lot of new ideas and cool tricks.
My situation is different, as I am learning Groovy coming from a dynamic background, ...
9
votes
4answers
355 views
Does groovy call partial application 'currying'?
Groovy has a concept that it calls 'currying'. Here's an example from their wiki:
def divide = { a, b -> a / b }
def halver = divide.rcurry(2)
assert halver(8) == 4
My understanding of what's ...
3
votes
3answers
369 views
When to write an explicit return statement in Groovy?
At the moment I am working on a Groovy/Grails project (which I'm quite new in) and I wonder whether it is good practice to omit the return keyword in Groovy methods. As far as I know you have to ...
4
votes
3answers
129 views
What class structure allows for a base class and mix/match of subclasses? (Similar to Users w/ roles)
I have a set of base characteristics, and then a number of sub-types. Each instance must be one of the sub-types, but can be multiple sub-types at once. The sub-types of each thing can change. In ...
0
votes
1answer
326 views
What's the best practice for rendering a different GSP template based on the type of object in a collection?
Let's say I have a collection that is setup in my controller, named "things." In this collection is a heterogeneous assortment of objects. Let's say some are of type "Thing" and some others are of ...
-1
votes
1answer
542 views
Pros and cons of using Grails compared to pure Groovy
Say, you (by you I mean an abstract guy, any guy in your team) have experience of writing and building java web apps, know about filters, servlet mappings and so on, and so on.
Also, let us assume ...
16
votes
1answer
347 views
Does Groovy follow Tennent's Correspondence Principle?
Here's an interesting discussion of Tennent's Correspondence Principle, and a brief description from Neal Gafter:
The principle dictates that an expression or statement, when wrapped in a closure ...
22
votes
5answers
6k views
Is Groovy going away? [closed]
I am sure this question has been asked many times. However, I like to ask it again with the intention of what is the future of these languages.
I was first introduced to Groovy and really liked it. I ...
2
votes
4answers
2k views
Learning Groovy vs learning Python, Ruby or Perl to get some insight on dynamic languages programming
I would like to explore programming in dynamic languages, and I found that Groovy would be really easy to learn because it is heavily based on Java.
won't I miss anything important regarding dynamic ...
4
votes
2answers
811 views
How difficult would it be to migrate a Struts/JSP application to Groovy?
I have taken over development of a JSP/Struts application. Right now it's a bit of a mess, and I'm finding the JSP pages with Struts tags to be insanely verbose. Has anyone migrated a Struts ...
8
votes
6answers
2k views
Is there a clear leader amongst JVM-based languages?
What is the current status of these projects, and has any one (or two) emerged as a clear leader?
To demonstrate my motives for asking this question, cast your mind back several years. Prototype and ...
12
votes
4answers
583 views
Pitfalls in the Grails Framework
What are some of the biggest issues/pitfalls with using the Grails framework? I'm learning the framework now, and I really like it, but I need to know what major issues I may encounter when using it ...
1
vote
3answers
2k views
Advantages of Scala vs. Groovy with JAVA EE 6 Applications
Please let me first emphasize that I am not looking for flame wars. I just want advice from people who have real experiences.
I started learning JAVA EE 6 as real newbie and am having a difficult ...
1
vote
1answer
170 views
Groovy/Grails course content
Some Java developers have asked if I could give them a 2-day primer on Grails development. I'm assuming they're familiar with:
Java language and libraries
Java web development, e.g. Servlets, JSPs
...
15
votes
14answers
3k views
Java devs: why not use Groovy? [closed]
OK, so there are quite a few people using Java these days. But as the language nears two decades of age, it isn't exactly the coolest option out there. Many of us are excited about dynamic languages ...
5
votes
3answers
2k views
Jython and JRuby vs. Groovy (and Java)
I am very interested in Python for programming on the JVM, and I've worked in Java and Ruby (not JRuby) a lot, and to a certain extent in Groovy.
What are the limits to the Java-Jython and Java-JRuby ...
