Power Groovy DSL Features
[ 156 ]street:"2 Rock Road",city:"Bedrock")
def customerList = [ fred, barney]when:
builder.customers {
for (cust in customerList) {
customer(id:cust.id) {
name(firstName:cust.firstName,surname:cust.surname)
address(street:cust.street, city:cust.city)
}
}
}then:
xmlIsIdentical writer.toString(), "customers.xml"Builders for every occasion
Out of the box, the Groovy libraries include a suite of builders for most of the
common construction tasks that we might encounter. Here is a list of some of them:
- MarkupBuilder: This we have already seen. It can be used to generate any
XML-style tagged output. Class: groovy.xml.MarkupBuilder. - NodeBuilder: This is a useful builder for building tree-like structures of node
instances in memory. Class: groovy.util.NodeBuilder. - DOMBuilder: This builder will construct a WC3 DOM tree in memory from
the GroovyMarkup that we provide. Class: groovy.xml.DOMBuilder. - SAXBuilder: This is very similar to the DOMBuilder insofar as the end result
is a WC3 DOM in memory. The difference is that it works with an existing
SAX ContentHandler class and fires SAX events to it as the GroovyMarkup is
executed. Class: groovy.xml.SAXBuilder. - JMXBuilder: Also in the same vein as AntBuilder is the JMXBuilder class,
which can be used to deploy JMX management beans by using simple
markup-style syntax. JMXBuilder is a Groovy-based DSL for declaratively
exposing services, POJOs, POGOs, and so on, via the Java Management
Extensions (JMX). Class: groovy.jmx.builder.JMXBuilder. - SwingBuilder: Next we'll cover SwingBuilder in detail with
an example. This builder constructs Swing-based UIs. Class:
groovy.swing.SwingBuilder.
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