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## Package com.opensymphony.xwork2.interceptor

Interceptor classes.

See:
Description

Interface Summary
Interceptor | An interceptor is a stateless class that follows the interceptor pattern, as found in `Filter` and in AOP languages.
NoParameters | This marker interface should be implemented by actions that do not want any parameters set on them automatically (by the ParametersActionFactoryProxy) This may be useful if one is using the action tag and want to supply the parameters to the action manually using the param tag.
ParameterNameAware | This interface is implemented by actions that want to declare acceptable parameters.
PreResultListener | PreResultListeners may be registered with an ActionInvocation to get a callback after the Action has been executed but before the Result is executed.
ScopedModelDriven<T> | Adds the ability to set a model, probably retrieved from a given state.

Class Summary
AbstractInterceptor | Provides default implementations of optional lifecycle methods
AliasInterceptor | The aim of this Interceptor is to alias a named parameter to a different named parameter.
ChainingInterceptor | An interceptor that copies all the properties of every object in the value stack to the currently executing object, except for any object that implements `Unchainable`.
ConversionErrorInterceptor | This interceptor adds any error found in the `ActionContext`'s conversionErrors map as a field error (provided that the action implements `ValidationAware`).
DefaultWorkflowInterceptor | An interceptor that does some basic validation workflow before allowing the interceptor chain to continue.
ExceptionHolder | A simple wrapper around an exception, providing an easy way to print out the stack trace of the exception as well as a way to get a handle on the exception itself
ExceptionMappingInterceptor | This interceptor forms the core functionality of the exception handling feature.
I18nInterceptor | An interceptor that handles setting the locale specified in a session as the locale for the current action request.
LoggingInterceptor | This interceptor logs the the start and end of the execution an action (in English-only, not internationalized)
MethodFilterInterceptor | An abstract `Interceptor` that is applied to selectively according to specified included/excluded method lists.
MethodFilterInterceptorUtil | Utility class contains common methods used by `MethodFilterInterceptor`.
ModelDrivenInterceptor | Watches for `ModelDriven` actions and adds the action's model on to the value stack.
ParameterFilterInterceptor | The Parameter Filter Interceptor blocks parameters from getting to the rest of the stack or your action.
ParametersInterceptor | This interceptor sets all parameters on the value stack.
PrefixMethodInvocationUtil | A utility class for invoking prefixed methods in action class.
PrepareInterceptor | This interceptor calls prepare() on actions which implement `Preparable`.
ScopedModelDrivenInterceptor | An interceptor that enables scoped model-driven actions.
StaticParametersInterceptor | This interceptor populates the action with the static parameters defined in the action configuration.
TimerInterceptor | This interceptor logs the amount of time in milliseconds.

## Package com.opensymphony.xwork2.interceptor Description

Interceptor classes.

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