Can anyone tell me what the keyword "super" does in this parameter list for
the constructor below? I can only find documentation for the more mundane
use when a method references an ancestor.
public WeightedCollection(Comparator<? super E> comp)
package pcgen.base.util;
<</ deleted stuff>>
/**
* Constructs an empty WeightedCollection with the given Comparator used to
* establish equality and order in the WeightedCollection.
*
* @param comp
* The Comparator this Set will use to determine equality and
* order of the WeightedCollection
*/
public WeightedCollection(Comparator<? super E> comp)
{
if (comp == null)
{
theData = new ListSet<WeightedItem<E>>();
}
else
{
theData = new TreeSet<WeightedItem<E>>(
new WeightedItemComparator<E>(comp));
}
}
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