paulk-asert commented on code in PR #665:
URL:
https://github.com/apache/commons-collections/pull/665#discussion_r2629470244
##########
src/main/java/org/apache/commons/collections4/MultiMapUtils.java:
##########
@@ -170,6 +171,29 @@ public static boolean isEmpty(final MultiValuedMap<?, ?>
map) {
return map == null || map.isEmpty();
}
+ /**
+ * A utility method to invert the mappings from an inputMultimap
+ * and add them to an outputMultimap. Some {@code MultiValuedMap}
+ * implementations support the {@link MultiValuedMap#inverted()} method.
+ * These typically return a new multimap instance with the same class as
the original.
+ * Consider using this method instead if you wish to supply a particular
+ * type of multimap or wish to merge multiple multimap inverse mappings
into a single multimap.
+ *
+ * @param inputMultimap take key-to-value mappings from here
+ * @param outputMultimap add value-to-key mappings here
+ * @param <K> the outputMultimap key type
+ * @param <V> the outputMultimap value type
+ * @param <M> the outputMultimap multimap with key and value types
reversed compare to inputMultimap
Review Comment:
changed
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