The UiBinder for editing Customers.

CustomerEditor.java

public class CustomerEditor extends Composite implements Editor<Customer> {

	private static CustomerEditorUiBinder uiBinder = GWT
			.create(CustomerEditorUiBinder.class);

	interface CustomerEditorUiBinder extends UiBinder<Widget, CustomerEditor> {
	}

	@UiField
	TextBox firstName;
	
	@UiField
	TextBox lastName;

	@UiField
	AddressEditor addressEditor;
	
	@UiField
	EmailEditor emailEditor;
	
	public CustomerEditor() {
		initWidget(uiBinder.createAndBindUi(this));
	}
}

CustomerEditor.xml

<!DOCTYPE ui:UiBinder SYSTEM "http://dl.google.com/gwt/DTD/xhtml.ent">
<ui:UiBinder xmlns:ui="urn:ui:com.google.gwt.uibinder"
	xmlns:g="urn:import:com.google.gwt.user.client.ui" xmlns:d="urn:import:org.gwtexperiments.client.binding">
	<ui:style>
	</ui:style>
	<g:HTMLPanel>
		<h3>Customer</h3>
		<div>
			First Name:
			<g:TextBox ui:field="firstName" />
		</div>
		<div>
			Last Name:
			<g:TextBox ui:field="lastName" />
		</div>
		<div>
			Address
			<d:AddressEditor ui:field="addressEditor" />
		</div>
		<div>
			Email
			<d:EmailEditor ui:field="emailEditor" />
		</div>
	</g:HTMLPanel>
</ui:UiBinder>