Hi Keith,
this goes against one of the basic ideas of the framework: the site
structure gives a complete overview over the flow of your
application. By reading it you know exactly which elements
participate and how they interconnect
Declaring your flow fully inside your classes makes a developer read
your entire application code before being able to see how everything
interconnects. It might maybe benefit you at one particular moment
since you don't have to write one additional line in the site
structure, however your code will be come much less maintainable.
Even that is not entirely true, since you're also adding the @Entry
annotation to the target element, which has you changing something
somewhere anyway.
Best regards,
Geert
On 26-nov-05, at 22:52, Keith Lea wrote:
I'm sick of having to edit the site xml to add a new exit, then a
flowlink for it. I think exiting should be as simple as a method
call, and exits should not be to an element by its id, but to a
class by its FQN.
I wonder what others on this list think of the idea.
I think RIFE should use bytecode transformation to allow a simple
method call to exit from one element to another.
class First extends Element {
void processElement() {
if (hasSubmission(..)) { .. do some form stuff }
String someFormValue = ...;
new Second().jump(someFormValue);
}
}
class Second extends Element {
String something;
@Entry void jump(String thatValue) {
something = thatValue;
}
void processElement() {
print(something);
}
}
I think this would be great. RIFE bytecode manipulation could make
it so the jump() call actually exited after jump returned. Such
behavior would happen for any call of a method labelled @Entry.
This could even be elegant for producing URL's, like:
Second second = new Second().jump("something");
t.setValue("user_url", second.getUrl());
For this to work, maybe jump() should not be bytecode-modified to
halt execution, but instead to set a flag within RIFE engine to
tell it to exit, once processElement returns.
Another idea could be to not use bytecode manipulation at all, but
instead change "exit" method to accept any instance of Element.
What does everyone think of this?
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