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| java.lang.Object
 javolution.util.FastCollection
javolution.util.FastSet
All known Subclasses: j2me.util.LinkedHashSet, j2me.util.HashSet,
| FastSet | | public class FastSet extends FastCollection implements Set,Reusable(Code) | | This class represents a set collection backed by a
FastMap ;
smooth capacity increase and no rehashing ever performed.
FastSet , as for any
FastCollection sub-class, supports
thread-safe fast iterations without using iterators. For example:[code]
for (FastSet.Record r = set.head(), end = set.tail(); (r = r.getNext()) != end;) {
Object value = set.valueOf(r);
}[/code]
author:
Jean-Marie Dautelle
version:
4.2, December 18, 2006 |
| Constructor Summary | |
| public | FastSet()
Creates a set of small initial capacity. | | public | FastSet(String id)
Creates a persistent set associated to the specified unique identifier
(convenience method). | | public | FastSet(int capacity)
Creates a set of specified initial capacity; unless the set size
reaches the specified capacity, operations on this set will not allocate
memory (no lazy object creation). | | public | FastSet(Set elements)
Creates a set containing the specified elements, in the order they
are returned by the set iterator. |
| FastSet | | public FastSet()(Code) | | Creates a set of small initial capacity.
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| FastSet | | public FastSet(String id)(Code) | | Creates a persistent set associated to the specified unique identifier
(convenience method).
Parameters:
id - the unique identifier for this map.
throws:
IllegalArgumentException - if the identifier is not unique.
See Also: javolution.context.PersistentContext.Reference |
| FastSet | | public FastSet(int capacity)(Code) | | Creates a set of specified initial capacity; unless the set size
reaches the specified capacity, operations on this set will not allocate
memory (no lazy object creation).
Parameters:
capacity - the initial capacity. |
| FastSet | | public FastSet(Set elements)(Code) | | Creates a set containing the specified elements, in the order they
are returned by the set iterator.
Parameters:
elements - the elements to be placed into this fast set. |
| add | | final public boolean add(Object value)(Code) | | Adds the specified value to this set if it is not already present.
Parameters:
value - the value to be added to this set. true if this set did not already contain the specified element.
throws:
NullPointerException - if the value is null. |
| clear | | final public void clear()(Code) | | |
| delete | | final public void delete(Record record)(Code) | | |
| head | | final public Record head()(Code) | | |
| reset | | public void reset()(Code) | | |
| setValueComparator | | public FastSet setValueComparator(FastComparator comparator)(Code) | | Sets the comparator to use for value equality.
Parameters:
comparator - the value comparator. this |
| size | | final public int size()(Code) | | Returns the number of elements in this set (its cardinality).
the number of elements in this set (its cardinality). |
| tail | | final public Record tail()(Code) | | |
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