/**
* Get the node with the highest value in the list
*
* @return The node with the highest item value
*/
private DoubleNode<E> highest() {
DoubleNode<E> highest = head.getNext();
Iterator<DoubleNode<E>> i = nodeIterator();
while (i.hasNext()) {
DoubleNode<E> current = i.next();
if (current.getValue().compareTo(highest.getValue()) > 0) {
highest = current;
}
}
return highest;
}
/**
* Add an item in rising order
*
* @param value The value to be added
*/
public void add(E value) {
DoubleNode<E> closest = lowest();
if (size == 0 || closest.getValue().compareTo(value) > 0) {
addFirst(value);
return;
}
Iterator<DoubleNode<E>> i = nodeIterator();
while (i.hasNext()) {
DoubleNode<E> current = i.next();
if (current.getValue().compareTo(value) < 0
&& current.getValue().compareTo(closest.getValue()) > 0) {
closest = current;
}
}
addAfter(closest, value);
}
/**
* Remove all items with matching value
*
* @param value The value to be removed
* @return Whether one or more items were removed
*/
public boolean remove(E value) {
boolean removed = false;
Iterator<DoubleNode<E>> i = nodeIterator();
while (i.hasNext()) {
DoubleNode<E> current = i.next();
if (value.equals(current.getValue())) {
removeNode(current);
removed = true;
}
}
return removed;
}