public void remove()
{
if (prevEvent != null)
{
prevEvent.setNextEvent(nextEvent);
}
if (nextEvent != null)
{
nextEvent.setPrevEvent(prevEvent);
}
}
public void addEvent(String eventNameX, DateTime endTimeX)
{
/*
* Three Conditions
* First Event == null - No Events - firstEvent = New Path
* First Event.getNext() == null - One Event - firstEvent.getNext().setNext(New Event)
* First Event.getNext() != null - > Two Events - find last and assign
*/
if (firstEvent == null)
{
eventNode newEvent = new eventNode(eventNameX, endTimeX);
firstEvent = newEvent;
M.debug("New Event Created, assigned to firstEvent");
}
else if (firstEvent.getNextEvent() == null)
{
eventNode newEvent = new eventNode(eventNameX, endTimeX);
firstEvent.setNextEvent(newEvent); //firstEvent.next = newPath
newEvent.setPrevEvent(firstEvent);
M.debug("New Event Created, registered as second Event created");
}
else
{
ES = firstEvent;
while (ES.getNextEvent() != null)
{
//Find last path
ES = ES.getNextEvent();
}
eventNode newPath = new eventNode(eventNameX, endTimeX);
ES.setNextEvent(newPath); //lastPath.next = newPath
newPath.setPrevEvent(ES); //newPath.last = lastPath
M.debug("Event created, Unkown Event possiton, Prev/Next Event values assigned accordingly");
}
}
public void removeEvent(eventNode remove)
{
/*
* The getters for pathNodes are not build to not return null, meaning if you try and call a method like
* remove.getNext().setNext(null) but remove.getNext() is null it will hard error
*/
if (remove == firstEvent) //If the path to remove is the first path, you simple need to re-assign first path.
{
if (remove.getNextEvent() == null) //Program will error out w/o these error checks
{
firstEvent = null;
}
else
{
firstEvent = remove.getNextEvent();
firstEvent.setPrevEvent(null);
}
}
else if (remove == firstEvent.getNextEvent())
/*
* This is a simi-redundent case
* This could be handled with the else statment
* however I like handling this case seperatly I don't know why
* Anyt thing I mess with anything to do with firstEvent, I like to call it Directly
*/
{
if (remove.getNextEvent() == null)
{
firstEvent.setNextEvent(null);
remove.setPrevEvent(null); //This is a redudent clean up that I like to do, it is not necissary
}
else
{
firstEvent.setNextEvent(remove.getNextEvent());
remove.getNextEvent().setPrevEvent(firstEvent);
remove.setNextEvent(null);
remove.setPrevEvent(null);
}
}
else
{
if (remove.getNextEvent() == null)
{
remove.getPrevEvent().setNextEvent(null);
remove.setNextEvent(null);
}
else
{
remove.getPrevEvent().setNextEvent(remove.getNextEvent());
remove.getNextEvent().setPrevEvent(remove.getPrevEvent());
remove.setNextEvent(null);
remove.setPrevEvent(null);
}
}
}