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8026768: java.util.Map.Entry comparingBy methods missing @since 1.8

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Reviewed-by: dholmes
This commit is contained in:
Henry Jen 2013-10-16 21:34:26 -07:00
parent a8aaf9f52a
commit 63f8dbc1d3
1 changed files with 25 additions and 20 deletions

5
jdk/src/share/classes/java/util/Map.java

@ -465,6 +465,7 @@ public interface Map<K,V> {
* @param <V> the type of the map values * @param <V> the type of the map values
* @return a comparator that compares {@link Map.Entry} in natural order on key. * @return a comparator that compares {@link Map.Entry} in natural order on key.
* @see Comparable * @see Comparable
* @since 1.8
*/ */
public static <K extends Comparable<? super K>, V> Comparator<Map.Entry<K,V>> comparingByKey() { public static <K extends Comparable<? super K>, V> Comparator<Map.Entry<K,V>> comparingByKey() {
return (Comparator<Map.Entry<K, V>> & Serializable) return (Comparator<Map.Entry<K, V>> & Serializable)
@ -481,6 +482,7 @@ public interface Map<K,V> {
* @param <V> the {@link Comparable} type of the map values * @param <V> the {@link Comparable} type of the map values
* @return a comparator that compares {@link Map.Entry} in natural order on value. * @return a comparator that compares {@link Map.Entry} in natural order on value.
* @see Comparable * @see Comparable
* @since 1.8
*/ */
public static <K, V extends Comparable<? super V>> Comparator<Map.Entry<K,V>> comparingByValue() { public static <K, V extends Comparable<? super V>> Comparator<Map.Entry<K,V>> comparingByValue() {
return (Comparator<Map.Entry<K, V>> & Serializable) return (Comparator<Map.Entry<K, V>> & Serializable)
@ -498,6 +500,7 @@ public interface Map<K,V> {
* @param <V> the type of the map values * @param <V> the type of the map values
* @param cmp the key {@link Comparator} * @param cmp the key {@link Comparator}
* @return a comparator that compares {@link Map.Entry} by the key. * @return a comparator that compares {@link Map.Entry} by the key.
* @since 1.8
*/ */
public static <K, V> Comparator<Map.Entry<K, V>> comparingByKey(Comparator<? super K> cmp) { public static <K, V> Comparator<Map.Entry<K, V>> comparingByKey(Comparator<? super K> cmp) {
Objects.requireNonNull(cmp); Objects.requireNonNull(cmp);
@ -516,6 +519,7 @@ public interface Map<K,V> {
* @param <V> the type of the map values * @param <V> the type of the map values
* @param cmp the value {@link Comparator} * @param cmp the value {@link Comparator}
* @return a comparator that compares {@link Map.Entry} by the value. * @return a comparator that compares {@link Map.Entry} by the value.
* @since 1.8
*/ */
public static <K, V> Comparator<Map.Entry<K, V>> comparingByValue(Comparator<? super V> cmp) { public static <K, V> Comparator<Map.Entry<K, V>> comparingByValue(Comparator<? super V> cmp) {
Objects.requireNonNull(cmp); Objects.requireNonNull(cmp);
@ -577,6 +581,7 @@ public interface Map<K,V> {
* @throws NullPointerException if the specified key is null and this map * @throws NullPointerException if the specified key is null and this map
* does not permit null keys * does not permit null keys
* (<a href="Collection.html#optional-restrictions">optional</a>) * (<a href="Collection.html#optional-restrictions">optional</a>)
* @since 1.8
*/ */
default V getOrDefault(Object key, V defaultValue) { default V getOrDefault(Object key, V defaultValue) {
V v; V v;