In Struts 2, "input"
is returned when a check fails in the validate()
method. I then map <result name="input">
in struts.xml
for the appropriate page.
I am just wondering how it gets the "input"
, which is a String
when the validate()
method itself returns void
?
@Override
public void validate() {
// if checks here
}
I would like to understand this concept.
The validate()
method itself returns nothing (void
). It's invoked by validation
interceptor.
But after this interceptor usually is going workflow
interceptor. This interceptor is responsible to return INPUT
result if the action hasErrors()
.