In your dwr.xml you can make for the creator one of those :
new: Which uses the Java 'new' operator.
static: Which uses the 'getInstance()' method (by default) to obtain an instance of the class.
none: This does not create objects. See below for why. (v1.1+)
scripted: Uses a scripting language like BeanShell or Groovy via BSF.
spring: Gives access to beans through the Spring Framework.
jsf: Uses objects from JSF. (v1.1+)
struts: Uses struts FormBeans. (v1.1+)
pageflow: Gives access to a PageFlow from Beehive or Weblogic. (v1.1+)