Hi
I will add a sample to the predicate wiki page
http://camel.apache.org/predicate.html
But there is a hikup with the apache server right now, so here is part
of the source code for an unit test:
import static org.apache.camel.builder.PredicateBuilder.not;
...
protected RouteBuilder createRouteBuilder() {
return new RouteBuilder() {
public void configure() {
// START SNIPPET: e1
from("direct:start")
.choice()
.when(not(header("username").regex("goofy|pluto"))).to("mock:people")
.otherwise().to("mock:animals")
.end();
// END SNIPPET: e1
}
};
}
On Tue, Feb 17, 2009 at 5:01 AM, Trevv <4...@safe-mail.net> wrote:
>
> Most of my uses of .when are like the first snippet below, very easy to read.
>
> But I have a few uses of .when which need to negate the Predicate, and in
> those places I'm using code like the second snippet below. It works well,
> and there are no compiler warnings, but it is NOT easy to read. How should
> I make this code easier to read?
>
> // take the first branch, if the regex DOES match...
>
> choice().
> when(header("foo").
> regex("cheese|whey"))
>
> ========
>
> // take the first branch, if the regex DOES NOT match...
>
> choice().
> when(PredicateBuilder.
> not(Builder.
> <MinaExchange>header("foo").
> regex("cheese|whey")))
> --
> View this message in context:
> http://www.nabble.com/How-to-negate-a-Predicate--tp22049751s22882p22049751.html
> Sent from the Camel - Users mailing list archive at Nabble.com.
>
>
--
Claus Ibsen
Apache Camel Committer
Open Source Integration: http://fusesource.com
Blog: http://davsclaus.blogspot.com/
