Package org.apache.tapestry5.runtime

Interface Event

  • All Known Subinterfaces:
    ComponentEvent
    All Known Implementing Classes:
    ComponentEventImpl, EventImpl, RenderPhaseEvent
    public interface Event
    The core methods related to event handling. Events used in this way exist to gather data from user code, by invoking user methods and capturing the response. Return values from methods, if non-null, are passed to a ComponentEventCallback. The ComponentEvent subinterface extends this by providing access to a context, or set of information related to the event, along with additional data used, at runtime, to match events to user code methods.

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      boolean isAborted()
      Returns true if the event has been aborted (meaning that the return value from some event handler method was accepted, and processing of the event was terminated).
      void setMethodDescription(String methodDescription)
      Invoke to identify, to the event, what component and method is being acted upon (used for some kinds of exception reporting).
      boolean storeResult(Object result)
      Stores a result for the event.

    • Method Detail

      • isAborted

        boolean isAborted()
        Returns true if the event has been aborted (meaning that the return value from some event handler method was accepted, and processing of the event was terminated).
        Returns:
        true if no further event handler methods should be invoked

      • setMethodDescription

        void setMethodDescription(String methodDescription)
        Invoke to identify, to the event, what component and method is being acted upon (used for some kinds of exception reporting).
        Parameters:
        methodDescription - describes the location (i.e. file name, method name and line number) of the method

      • storeResult

        boolean storeResult(Object result)
        Stores a result for the event. Storing a non-null result value may abort the event (at the discretion of the ComponentEventCallback).
        Parameters:
        result - the result obtained from a method invocations
        Returns:
        true if the event is now aborted