Introducing Spring Framework

Chapter 18 ■ Spring and Groovy
Listing 18-1 shows the XML that you have been using in the past chapters. Now it’s time to make it more Groovy!
Let's take a look at Listing 18-2, and don’t worry too much about mastering it now. I will explain in detail what you
doing are and the syntax.
Listing 18-2. mydocuments.groovy
beans {
xmlns context:"http://www.springframework.org/schema/context"
context.'component-scan'('base-package': "com.apress.isf.spring")
importBeans("classpath:META-INF/groovy/mydocumentsJDBC.groovy")
importBeans("classpath:META-INF/groovy/mydocumentsRabbitMQ.groovy")
importBeans("classpath:META-INF/groovy/mydocumentsMongo.groovy")
}
Listing 18-2 shows the new Spring DSL (which is equivalent to Listing 18-1). You are removing all of the clutter
from the XML! Very Groovy! Next, let me explain what every part means.
You need to start with a beans keyword, followed by curly braces that will contain all of the bean definitions; this
will be the equivalent of starting your tag.
beans {
}
//your beans definitions here
Next, you are going to use some of the namespaces. You are going to use
xmlns context:http://www.springframework.org/schema/context
This namespace will be the first element after the curly brace for beans. This is equivalent to adding the first part
in the XML. Next, you use the tag to tell the Spring container to look for some annotations and
classes beginning in the com.apress.isf.spring Java package. Also, you are importing other beans with the method
importBeans.
■ ■Note The following listings show you only the Spring DSL. These listings are equivalent to the XML. So, if needed,
you can review the book’s companion source code to see the XML in detail and compare it with the new Spring DSL.
Next, Listing 18-3 shows the JDBC groovy DSL, the mydocumentsJDBC.groovy file.
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