[DSL]: ApacheCamel

As i wrote early i like some 'specific' style of programming. So now i have yet some examples:

From here:
-------------------------
onException(ValidationException.class).to("activemq:validationFailed");

onException(MyFunctionalException.class).process(new MyFunctionFailureHandler()).stop();

from("jms:queue:order:input")
.to("bean:validateOrder");
.to("bean:transformOrder")
.to("bean:handleOrder");

from("direct:start")
.choice()
.when().xpath("//type = 'myType'").to("bean:myServiceBean")
.end()
.to("mock:result");

onException(MyUserException.class).onWhen(header("user").isNotNull())
.maximumRedeliveries(1)
.to(ERROR_USER_QUEUE);

from here:
-------------------------
from("direct:start")
.doTry()
.process(new ProcessorFail())
.to("mock:result")
.doCatch(IOException.class, IllegalStateException.class)
.to("mock:catch")
.doFinally()
.to("mock:finally")
.end();

from here:
-------------------------

from("jms:queue:order")
.choice()
.when(header("type").isEqualTo("widget")).to("bean:widgetOrder")
.when(header("type").isEqualTo("wombat")).to("bean:wombatOrder")
 .otherwise()
    .to("bean:miscOrder");

from("direct:start")
  .choice()
      .when(not(header("username").regex("goofy|pluto"))).to("mock:people")
      .otherwise().to("mock:animals");
  .end();

 .end();

from here:
----------------------
from("direct:mixed2")
  // using a different propagation which is requires new
    .transacted("PROPAGATION_REQUIRES_NEW")
  // tell Camel that if this route fails then only rollback this last route
    // by using (rollback only *last*)
    .onException(Exception.class).markRollbackOnlyLast().end()
  // this step will be okay
    .setBody(constant("Giraffe in Action")).beanRef("bookService")
  // this step will fail with donkey
    .setBody(constant("Donkey in Action")).beanRef("bookService");