Think beyond frameworks, The real gems are in the languages
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This document discusses the importance of learning programming languages over frameworks. It argues that frameworks reflect the opinions of their underlying languages, and languages with fewer opinions give users more flexibility. The document uses Groovy and Grails to illustrate how language evolution influences framework evolution. It provides examples of how Groovy leverages concepts like static typing, meta-programming, domain-specific languages, and inheritance vs. composition to increase productivity. The key message is that frameworks enable productivity but learning languages unleashes more potential for innovation.
![LeveragingDSLs
29
menuItems = [
new MenuItem(
menuCode: 'customer_new',
group: ‘customer',
label: 'Add Customer',
controller: ‘customer',
action: 'create'
),
]](https://image.slidesharecdn.com/thinkbeyondframeworksgr8conf2017-170108183517/85/Think-beyond-frameworks-The-real-gems-are-in-the-languages-29-320.jpg)
![LeveragingDSLs
30
menuItems = [
menuItem {
menuCode 'customer_new'
group 'customer'
label: 'Add Customer'
controller: 'customer'
action: 'create'
}
]](https://image.slidesharecdn.com/thinkbeyondframeworksgr8conf2017-170108183517/85/Think-beyond-frameworks-The-real-gems-are-in-the-languages-30-320.jpg)
![LeveragingDSLs
31
menuItems = [
menuItem {
menuCode 'customer_new'
group 'customer'
label 'Add Customer'
controller 'customer'
action 'create'
}
]](https://image.slidesharecdn.com/thinkbeyondframeworksgr8conf2017-170108183517/85/Think-beyond-frameworks-The-real-gems-are-in-the-languages-31-320.jpg)
Think beyond frameworks, The real gems are in the languages
- 1. ThinkBeyondFrameworks, theRealGemsareinthe Languages Naresha K Chief Technologist, Channel Bridge Software Labs naresha.k@gmail.com @naresha_k 1
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- 3. DISCLAIMER 3 The contents of this presentation may hurt your feelings! Proceed with caution
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- 7. Grails 4 Opensource, Forums, Slack Community3 On-demand capabilities, Reuse, Share Plugin Ecosystem 2 Convention over configuration, Groovy Productivity1 JVM, Spring, Hibernate Built on proven tech
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- 10. 10 Layer 4 Layer 3 Layer 2 Layer 1
- 14. ProgrammingConcepts Objects Functions Higher Order Functions Inheritance Encapsulation Polymorphism Statically Typed Dynamic Typing Immutability Composition Parallel processing Lazy Evaluation
- 15. 15 Frameworks reflect the opinion of the language they are built on
- 16. 16 Lesser the opinionated the language => more decisions to be made by it’s users
- 17. Groovy&GrailsEvolution TIMELINES 17 Initial Dynamic Groovy 2.0 Static Typing Groovy 1.6 AST Transformation
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- 22. SpecifyingTypes 22 def friend = new Person(name: 'Raj') def friend = new Person(name: 'Raj') def friend = new Person(name: 'Raj') def friend = new Person(name: ‘Ravi') // vs Person me = new Person(name: 'Naresha')
- 23. SpecifyingTypes 23 class Person { String name Integer age }
- 24. SpecifyingTypes 24 class MyController { def myService // vs AnotherService anotherService }
- 26. LeveragingMetaProgramming 26 class MyService { @Transactional(propagation = Propagation.REQUIRES_NEW) def m1(){} def m2() { m1() // vs myProxy.m1() } }
- 27. LeveragingMetaProgramming 27 sc.clazz.metaClass.getMyProxy = { -> grailsApplication.mainContext.getBean(propertyName) }
- 28. LeveragingDSLs 28 class MenuItem { String menuCode String group String label String controller String action }
- 29. LeveragingDSLs 29 menuItems = [ new MenuItem( menuCode: 'customer_new', group: ‘customer', label: 'Add Customer', controller: ‘customer', action: 'create' ), ]
- 30. LeveragingDSLs 30 menuItems = [ menuItem { menuCode 'customer_new' group 'customer' label: 'Add Customer' controller: 'customer' action: 'create' } ]
- 31. LeveragingDSLs 31 menuItems = [ menuItem { menuCode 'customer_new' group 'customer' label 'Add Customer' controller 'customer' action 'create' } ]
- 32. LeveragingDSLs 32 class MenuItem { String menuCode // Other attributes def menuItem(Closure config){} menuCode(val) { menuCode = val} }
- 33. 33 Frameworks are gateways to productivity, not barriers for innovation
- 34. Think Beyond Frameworks, Learn Languages Happy Learning… “