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public interface Set<E>
Collection interface representing a group of unique elements.
Nested Class Summary | |
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static class |
Set.SetListenerList<E>
Set listener list. |
Method Summary | |
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boolean |
add(E element)
Adds an element to the group. |
void |
clear()
Removes all elements from the collection. |
int |
getCount()
Returns the number of elements in the set. |
ListenerList<SetListener<E>> |
getSetListeners()
Returns the set listener collection. |
boolean |
remove(E element)
Removes an element from the group. |
void |
setComparator(Comparator<E> comparator)
Sets the collection's sort order, re-ordering the collection's contents and ensuring that new entries preserve the sort order. |
Methods inherited from interface org.apache.pivot.collections.Group |
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contains |
Methods inherited from interface org.apache.pivot.collections.Collection |
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getComparator, isEmpty |
Methods inherited from interface java.lang.Iterable |
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iterator |
Method Detail |
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boolean add(E element)
Group
add
in interface Group<E>
element
- The element to add to the group.
SetListener.elementAdded(Set, Object)
boolean remove(E element)
Group
remove
in interface Group<E>
element
- The element to remove from the set.
SetListener.elementRemoved(Set, Object)
void clear()
Collection
clear
in interface Collection<E>
SetListener.setCleared(Set)
int getCount()
void setComparator(Comparator<E> comparator)
Collection
Calling this method more than once with the same comparator will re-sort the collection.
setComparator
in interface Collection<E>
comparator
- The comparator used to order elements in the collection, or null if the
collection is unsorted.SetListener.setCleared(Set)
ListenerList<SetListener<E>> getSetListeners()
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