A series of IBM developer works tutorials on groovy and grails

Java bans operator overloading. Groovy does not. Learn everyday uses of 3 types of overloadable operators. By Andrew Glover. IBM developerWorks.

First installment; shows simple way to unit test Java code with Groovy, JUnit. By Andrew Glover. IBM developerWorks.

Shows how to use GroovySql to build simple data-reporting program. GroovySql merges closures and iterators to ease Java Database Connectivity (JDBC) coding by shifting resource management from coder to Groovy framework. By Andrew Glover. IBM developer...

With release of a JSR-241 compliant parser, changes to Groovy syntax were formalized. Treats most important changes to syntax, shows handy feature not in older Groovy. By Andrew Glover. IBM developerWorks.

Views are integral to MVC programming, which is ubiquitous to enterprise programming; shows how Groovy template engine framework simplifies view programming, makes code more maintainable. By Andrew Glover. IBM developerWorks.

Shows many ways to embed simple, easy-to-write Groovy scripts in more complex Java code; where and when it's useful. By Andrew Glover. IBM developerWorks.

Primer on Meta Object Protocol, an old-is-new way to build programs, languages, and programs as languages. By Andrew Glover. IBM developerWorks.

Enhance standard closures with Curry method, invented by Haskell Curry; was in Groovy before JSR compliant releases. By Andrew Glover, Ken Barclay, John Savage. IBM developerWorks.

Ant and Maven are common in build processing, but XML is sometimes a less expressive configuration format; Groovy builder utility makes it easy to mix Groovy, Ant and Maven for more expressive, controlled builds. By Andrew Glover. IBM developerWorks.