import java.util.Enumeration;
/**
- * The <code>LRUCacheEnumerator</code> returns its elements in
- * the order they are found in the <code>LRUCache</code>, with the
- * most recent elements first.
- *
- * Once the enumerator is created, elements which are later added
- * to the cache are not returned by the enumerator. However,
- * elements returned from the enumerator could have been closed
- * by the cache.
+ * The <code>LRUCacheEnumerator</code> returns its elements in the order they
+ * are found in the <code>LRUCache</code>, with the most recent elements
+ * first.
+ *
+ * Once the enumerator is created, elements which are later added to the cache
+ * are not returned by the enumerator. However, elements returned from the
+ * enumerator could have been closed by the cache.
*/
public class LRUCacheEnumerator implements Enumeration {
/**
- * Current element;
+ * Current element;
*/
protected LRUEnumeratorElement fElementQueue;
public static class LRUEnumeratorElement {
/**
- * Value returned by <code>nextElement()</code>;
+ * Value returned by <code>nextElement()</code>;
*/
public Object fValue;
-
+
/**
- * Next element
+ * Next element
*/
public LRUEnumeratorElement fNext;
fValue = value;
}
}
-/**
- * Creates a CacheEnumerator on the list of <code>LRUEnumeratorElements</code>.
- */
-public LRUCacheEnumerator(LRUEnumeratorElement firstElement) {
- fElementQueue = firstElement;
-}
-/**
- * Returns true if more elements exist.
- */
-public boolean hasMoreElements() {
- return fElementQueue != null;
-}
-/**
- * Returns the next element.
- */
-public Object nextElement() {
- Object temp = fElementQueue.fValue;
- fElementQueue = fElementQueue.fNext;
- return temp;
-}
+
+ /**
+ * Creates a CacheEnumerator on the list of
+ * <code>LRUEnumeratorElements</code>.
+ */
+ public LRUCacheEnumerator(LRUEnumeratorElement firstElement) {
+ fElementQueue = firstElement;
+ }
+
+ /**
+ * Returns true if more elements exist.
+ */
+ public boolean hasMoreElements() {
+ return fElementQueue != null;
+ }
+
+ /**
+ * Returns the next element.
+ */
+ public Object nextElement() {
+ Object temp = fElementQueue.fValue;
+ fElementQueue = fElementQueue.fNext;
+ return temp;
+ }
}