Interface StateContext

All Known Implementing Classes:
AbstractStateContext, DefaultStateContext
public interface StateContext
StateContext objects are used to store the current State and any application specific attributes for a specific client of a StateMachine. Since StateMachines are singletons and shared by all clients using the StateMachine this is where client specific data needs to be stored.

  • Method Details

    • getCurrentState

      State getCurrentState()
      Returns:
      the current State. This is only meant for internal use.

    • setCurrentState

      void setCurrentState(State state)
      Sets the current State. This is only meant for internal use. Don't call it directly!
      Parameters:
      state - the new current State.

    • getAttribute

      Object getAttribute(Object key)
      Returns the value of the attribute with the specified key or nullif not found.
      Parameters:
      key - the key.
      Returns:
      the value or null.

    • setAttribute

      void setAttribute(Object key, Object value)
      Sets the value of the attribute with the specified key.
      Parameters:
      key - the key.
      value - the value.