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## com.opensymphony.xwork2
Interface ActionEventListener

    public interface ActionEventListener

Provides hooks for handling key action events

Method Summary
`String` | `handleException(Throwable t, ValueStack stack)` Called when an exception is thrown by the action
`Object` | `prepare(Object action, ValueStack stack)` Called after an action has been created.

Method Detail

### prepare

    Object prepare(Object action,
                   ValueStack stack)

  Called after an action has been created.

  Parameters:
    `action` - The action
    `stack` - The current value stack
  Returns:
    The action to use

### handleException

    String handleException(Throwable t,
                           ValueStack stack)

  Called when an exception is thrown by the action

  Parameters:
    `t` - The exception/error that was thrown
    `stack` - The current value stack
  Returns:
    A result code to execute, can be null

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