Apache Struts 2 Documentation > Home > Guides > Core Developers Guide > Interceptors > Token Session Interceptor |

Apache Struts 2 Documentation
Token Session Interceptor
Edit Page Browse Space Add Page Add News
Added by digi9ten, last edited by Ted Husted on Oct 16, 2006 (view change)

This interceptor builds off of the TokenInterceptor, providing advanced logic for handling invalid tokens. Unlike the normal token interceptor, this interceptor will attempt to provide intelligent fail-over in the event of multiple requests using the same session. That is, it will block subsequent requests until the first request is complete, and then instead of returning the invalid.token code, it will attempt to display the same response that the original, valid action invocation would have displayed if no multiple requests were submitted in the first place.

NOTE: As this method extends off MethodFilterInterceptor, it is capable of deciding if it is applicable only to selective methods in the action class. See `MethodFilterInterceptor` for more info.

## Parameters

- None

## Extending the Interceptor

There are no known extension points for this interceptor.

## Examples

    <action name="someAction" class="com.examples.SomeAction">
        <interceptor-ref name="token-session/>
        <interceptor-ref name="basicStack"/>
        <result name="success">good_result.ftl</result>
    </action>

    <-- In this case, myMethod of the action class will not
           get checked for invalidity of token -->
    <action name="someAction" class="com.examples.SomeAction">
        <interceptor-ref name="token-session>
            <param name="excludeMethods">myMethod</param>
        </interceptor-ref name="token-session>
        <interceptor-ref name="basicStack"/>
        <result name="success">good_result.ftl</result>
    </action>