THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
A PreResultListener can affect an action invocation between the interceptor/action phase and the result phase. Typical uses include switching to a different Result or somehow modifying the Result or Action objects before the Result executes.
Examples
A PreResultListener can be added by an Action or an Interceptor.
By an Action
| Code Block |
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public class MyAction extends ActionSupport {
...
public String execute() throws Exception {
ActionInvocation invocation = ActionContext.getContext().getActionInvocation();
invocation.addPreResultListener(new PreResultListener() {
public void beforeResult(ActionInvocation invocation,
String resultCode) {
// perform operation necessary before Result execution
}
});
}
...
}
|
By an Interceptor
| Code Block |
|---|
public class MyInterceptor extends AbstractInterceptor {
...
public String intercept(ActionInvocation invocation) throws Exception {
invocation.addPreResultListener(new PreResultListener() {
public void beforeResult(ActionInvocation invocation,
String resultCode) {
// perform operation necessary before Result execution
}
});
}
...
}
|