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Groovy and Grails Online Training Course Content

Groovy Fundamentals

  • Differences between Groovy and Java
  • Compiling and executing Groovy programs
  • The basic Groovy data types and optional typing
  • Writing Groovy scripts
  • Declaring classes
  • Overriding operators and type coercion
  • GDK: the Groovy library
  • Groovy strings
  • Regular expressions in Groovy

Groovy Collections

  • Ranges
  • Lists
  • Maps
  • Iterators and polymorphic algorithms

Closures in Groovy

  • Declaring closures
  • Available options for calling closures

Groovy Control Structures

  • The “Groovy truth”
  • Conditional execution
  • Looping constructs

Using Classes and Scripts

  • Groovy fields and local variables
  • Methods and operations
  • Safe dereferencing with the ?. operator
  • Organizing classes in packages
  • Using inheritance
  • POGO’s vs. POJO’s

Grails Training Outline


Groovy Fundamentals

  • Differences between Groovy and Java
  • Declaring classes
  • Using assertions
  • Groovy Strings
  • Closures
  • Lists and Maps
  • Expandos
  • Ranges
  • Lists, Maps, and Sets
  • Builders
  • Metaprogramming

Grails Project Structure

  • Overview of a Grails project
  • Directories for model classes, controllers, and views
  • Data source configuration
  • Logging
  • Command line utilities
  • IDE integration

Domain Classes

  • Object-Relational Mapping with GORM
  • Optional properties
  • Constraints and validation
  • Modeling relationships
  • Performing CRUD operations
  • Dynamic queries
  • Connection to Hibernate


  • Dynamic scaffolding
  • Working with the dynamic operations
  • Static scaffolding
  • Generating controllers
  • Generating views


  • Setting the default action
  • Accessing request attributes
  • Flash scope
  • Data binding and type conversion
  • Rendering a response
  • Redirects and returns

Groovy Server Pages

  • Built-in Grails tags
  • Dynamic tags
  • Layouts and templates
  • Pagination
  • Creating custom tags

Adding Ajax Support

  • Basics of Ajax
  • Ajax-supporting tags
  • Rendering JSON and XML responses

Services and Jobs

  • Transactions
  • Services and dependency injection

Java Integration

  • ORM integration with Hibernate
  • Dependency injection with Spring
  • Working with legacy databases


  • Architecture
  • Installing plugins
  • Review of common plugins