[[groovy]]
= Apache Groovy
:page-section-summary-toc: 1

Groovy is a powerful, optionally typed, and dynamic language, with static-typing and static
compilation capabilities. It offers a concise syntax and integrates smoothly with any
existing Java application.

[[beans-factory-groovy]]
== The Groovy Bean Definition DSL

The Spring Framework provides a dedicated `ApplicationContext` that supports a Groovy-based
Bean Definition DSL, as known from the Grails framework.

Typically, such configuration live in a ".groovy" file with the structure shown in the
following example:

[source,groovy,indent=0,subs="verbatim,quotes"]
----
	beans {
		dataSource(BasicDataSource) {
			driverClassName = "org.hsqldb.jdbcDriver"
			url = "jdbc:hsqldb:mem:grailsDB"
			username = "sa"
			password = ""
			settings = [mynew:"setting"]
		}
		sessionFactory(SessionFactory) {
			dataSource = dataSource
		}
		myService(MyService) {
			nestedBean = { AnotherBean bean ->
				dataSource = dataSource
			}
		}
	}
----

This configuration style is largely equivalent to XML bean definitions and even
supports Spring's XML configuration namespaces. It also allows for importing XML
bean definition files through an `importBeans` directive.