com.cookingfox.lapasse.api.state.observer.StateChanged Maven / Gradle / Ivy

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package com.cookingfox.lapasse.api.state.observer;

import com.cookingfox.lapasse.api.event.Event;
import com.cookingfox.lapasse.api.state.State;

/**
 * Wraps the state change properties: new state and the event that caused the state change.
 *
 * @param  The concrete type of the state object.
 */
public interface StateChanged {

    /**
     * @return The event that caused the state change.
     */
    Event getEvent();

    /**
     * @return The new state.
     */
    S getState();

}