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- /*
- File: LLPairEnumeration.java
-
- Originally written by Doug Lea and released into the public domain.
- Thanks for the assistance and support of Sun Microsystems Labs, Agorics
- Inc, Loral, and everyone contributing, testing, and using this code.
-
- History:
- Date Who What
- 24Sep95 dl@cs.oswego.edu Create from collections.java working file
- 13Oct95 dl Changed protection statuses
-
- */
-
- package collections;
-
- import java.util.Enumeration;
- import java.util.NoSuchElementException;
-
- /**
- *
- *
- * Enumerator for pair collections based on LLPairs
- * @author Doug Lea
- * @version 0.93
- *
- * <P> For an introduction to this package see <A HREF="index.html"> Overview </A>.
- **/
- final class LLPairEnumeration extends CEImpl {
- private LLPair cur_;
- private boolean useKeys_;
-
- public LLPairEnumeration(UpdatableCollection c, LLPair fst,boolean useKeys) {
- super(c);
- cur_ = fst;
- useKeys_ = useKeys;
- }
-
- /**
- * Implements java.util.Enumeration.nextElement.
- * @see java.util.Enumeration#nextElement
- **/
- public Object nextElement() {
- decRemaining();
- Object v = (useKeys_)? cur_.key(): cur_.element();
- cur_ = (LLPair)(cur_.next());
- return v;
- }
-
- }
-
-