THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
PreResultListener is provided to allow alteration / cause influence on a particular action invocation (eg. maybe its Result object, A PreResultListener can affect an action invocation between the interceptor/action phase and the result phase. Typical uses include switching to a different result, the Action object itself etc) Result or somehow modifying the Result or Action objects before the Result is being executed. This could be done at the Action object or at the Interceptor itself.
Examples
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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
}
});
}
...
}
|