Auto Add Event Trigger with Pointer Events

using UnityEngine;
using UnityEngine.EventSystems;
using System.Collections;

public class InteractiveObject : MonoBehaviour {

    // EventTrigger for PointerEnter, Exit, Click events
    private EventTrigger myTrigger;

    // Use this for initialization
    void Start(){
        // Try to Find an EventTrigger Script on this GameObject
        myTrigger = gameObject.GetComponent<EventTrigger>();

        // If a script does not exist..
        if (myTrigger == null){
            // .. then create one.
            myTrigger = gameObject.AddComponent<EventTrigger>();

            // Register the Event for "Pointer Enter" (cursor goes Over button)
            EventTrigger.Entry entryOver = new EventTrigger.Entry();
            entryOver.eventID = EventTriggerType.PointerEnter;
            entryOver.callback.AddListener((eventData) => { OnPointerEnter(); });
            myTrigger.triggers.Add(entryOver);

            // Register the Event for "Pointer Exit" (cursor goes Out of button)
            EventTrigger.Entry entryOut = new EventTrigger.Entry();
            entryOut.eventID = EventTriggerType.PointerExit;
            entryOut.callback.AddListener((eventData) => { OnPointerExit(); });
            myTrigger.triggers.Add(entryOut);

            // Register the Event for "Pointer Click" (physical button has been pressed down and back up)
            EventTrigger.Entry entryClick = new EventTrigger.Entry();
            entryClick.eventID = EventTriggerType.PointerClick;
            entryClick.callback.AddListener((eventData) => { OnPointerClick(); });
            myTrigger.triggers.Add(entryClick);

            // Register the Event for "Pointer Up" (physical button has been released)
            EventTrigger.Entry entryUp = new EventTrigger.Entry();
            entryUp.eventID = EventTriggerType.PointerUp;
            entryUp.callback.AddListener((eventData) => { OnPointerUp(); });
            myTrigger.triggers.Add(entryUp);

            // Register the Event for "Pointer Down" (physical button has been pushed down)
            EventTrigger.Entry entryDown = new EventTrigger.Entry();
            entryDown.eventID = EventTriggerType.PointerDown;
            entryDown.callback.AddListener((eventData) => { OnPointerDown(); });
            myTrigger.triggers.Add(entryDown);
        }
    }

    // Pointer Enter Event
    public void OnPointerEnter() {
        Debug.Log("Pointer Enter");
    }

    // Pointer Exit Event
    public void OnPointerExit(){
        Debug.Log("Pointer Exit");
    }

    // Pointer Click Event
    public void OnPointerClick(){
        Debug.Log("Pointer Click");
    }

    // Pointer Up Event
    public void OnPointerUp(){
        Debug.Log("Pointer Up");
    }

    // Pointer Down Event
    public void OnPointerDown(){
        Debug.Log("Pointer Down");
    }
}