public static DataWriter defaultXmlElementFormat() {
        return XmlElementsDataWriterBuilder.builder()
                .build();
    }
Produces XML like:
<pre>
{@code
<?xml version="1.0" encoding="UTF-8"?>
<records xmlns=\"namespace\">
  <record>
    <field1>field1-value1</field1>
    <field2>field2-value1</field1>
    <field3>field3-value1</field1>
  </record>
  <record>
    <field1>field1-value2</field1>
    <field2>field2-value2</field1>
    <field3>field3-value2</field1>
  </record>
  </records>
}
</pre>
stroom-test-common/src/main/java/stroom/test/common/data/XmlElementsDataWriterBuilder.java