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Java Source | 1997-03-14 | 1.6 KB | 54 lines |
- // Copyright(c) 1996,1997 ObjectSpace, Inc.
- // Portions Copyright(c) 1995, 1996 Hewlett-Packard Company.
-
- package COM.objectspace.jgl;
-
- /**
- * Set is the interface that is implemented by all of the
- * Generic Container Library sets.
- * <p>
- * @see COM.objectspace.jgl.HashSet
- * @see COM.objectspace.jgl.OrderedSet
- * @version 2.0.2
- * @author ObjectSpace, Inc.
- */
-
- public interface Set extends Container
- {
- /**
- * Return the first object that matches the given object, or null if no match exists.
- * @param object The object to match against.
- * @see COM.objectspace.jgl.Set#put
- */
- public Object get( Object object );
-
- /**
- * If the object doesn't exist, add the object and return null, otherwise replace the
- * first object that matches and return the old object.
- * @param object The object to add.
- * @see COM.objectspace.jgl.Set#get
- */
- public Object put( Object object );
-
- /**
- * Remove all objects that match the given object.
- * @param object The object to match for removals
- * @return The number of objects removed.
- */
- public int remove( Object key );
-
- /**
- * Remove at most a given number of objects that match the given object.
- * @param object The object to match for removals
- * @param count The maximum number of objects to remove.
- * @return The number of objects removed.
- */
- public int remove( Object key, int count );
-
- /**
- * Return the number of items that match a particular object.
- * @param object The object to match against.
- */
- public int count( Object object );
- }
-