Unless you want to do it via introspection, then a good way would be to set the
appropriate actions to implement an interface having that setter.
Then you can use instanceof to see if the action in your interceptor implements
your interface. If so, cast it to the interface and call the setter.
I think this is generally the way that many S2 interceptors work. For instance,
look at ValidationAware in ParametersInterceptor.
HTH
Adam
GF on 06/03/08 12:06, wrote:
I want to do a simple thing,
I have an action like this
public class MyAction {
private String myVar;
public setMyVar(String myVar) {
this.myVar = myVar;
}
}
Inside my Interceptor i want to put in my Action a string inside myVar
property of the Action.
In few words, I need to discover if the Action has that setter, and if
its parameter type is a "String", in this case I would call that
setter.
I know how to write the interceptor but i don't know how to "try" to
set a property on the action.
Can you give me any good link?
I tried to watch the source of : StaticParametersInterceptor that
should do something like I have to do.
It does:
// for actions marked as Parameterizable, pass the static
parameters directly
if (action instanceof Parameterizable) {
((Parameterizable) action).setParams(parameters);
}
if (parameters != null) {
final ValueStack stack = ActionContext.getContext().getValueStack();
for (Iterator iterator = parameters.entrySet().iterator();
iterator.hasNext();) {
Map.Entry entry = (Map.Entry) iterator.next();
stack.setValue(entry.getKey().toString(), entry.getValue());
Object val = entry.getValue();
if (parse && val instanceof String) {
val = TextParseUtil.translateVariables((String) val, stack);
}
stack.setValue(entry.getKey().toString(), val);
}
}
Where does it call the "action setters"?
Thanks
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