feature: allow containsNone predicate to take a single element (resol…

redis-om-spring/src/main/java/com/redis/om/spring/metamodel/indexed/TagField.java

@@ -7,8 +7,11 @@
 import com.redis.om.spring.search.stream.predicates.tag.EqualPredicate;
 import com.redis.om.spring.search.stream.predicates.tag.InPredicate;
 import com.redis.om.spring.search.stream.predicates.tag.NotEqualPredicate;
+import com.redis.om.spring.util.ObjectUtils;
 
 import java.util.Arrays;
+import java.util.Collections;
+import java.util.Set;
 import java.util.function.Consumer;
 import java.util.function.ToLongFunction;
 
@@ -58,6 +61,14 @@ public NotEqualPredicate<E, T> containsNone(T value) {
     return new NotEqualPredicate<>(searchFieldAccessor, value);
   }
 
+  public NotEqualPredicate<E, ?> containsNone(String value) {
+    if (!ObjectUtils.isCollection(value.getClass())) {
+      return new NotEqualPredicate<>(searchFieldAccessor, Set.of(value));
+    } else {
+      return new NotEqualPredicate<>(searchFieldAccessor, value);
+    }
+  }
+
   public Consumer<E> add(Object value) {
     return new ArrayAppendAction<>(searchFieldAccessor, value);
   }
@@ -101,5 +112,4 @@ public <R> ArrayPopAction<E, R> remove(Integer index) {
   public Consumer<E> trimToRange(Integer begin, Integer end) {
     return new ArrayTrimAction<>(searchFieldAccessor, begin, end);
   }
-
 }

redis-om-spring/src/test/java/com/redis/om/spring/search/stream/EntityStreamDocsTest.java

@@ -792,6 +792,19 @@ void testFindByTagsContainsNone() {
     assertTrue(names.contains("RedisInc"));
   }
 
+  @Test
+  void testFindByTagsContainsNoneSingleValue() {
+    List<String> names = entityStream //
+        .of(Company.class) //
+        .filter(Company$.TAGS.containsNone("innovative")) //
+        .map(Company$.NAME) //
+        .collect(Collectors.toList());
+
+    assertEquals(1, names.size());
+
+    assertTrue(names.contains("RedisInc"));
+  }
+
   @Test
   void testFindFirst() {
     Optional<Company> maybeCompany = entityStream.of(Company.class) //

redis-om-spring/src/test/java/com/redis/om/spring/search/stream/EntityStreamHashTest.java

@@ -697,6 +697,20 @@ void testFindByTagsContainsNone() {
     assertTrue(names.contains("RedisInc"));
   }
 
+  @Test
+  void testFindByTagsContainsNoneSingleValue() {
+    // The containsNone predicate will wrap the value in a Set if a single value is provided
+    List<String> names = entityStream //
+        .of(Company.class) //
+        .filter(Company$.TAGS.containsNone("innovative")) //
+        .map(Company$.NAME) //
+        .collect(Collectors.toList());
+
+    assertEquals(1, names.size());
+
+    assertTrue(names.contains("RedisInc"));
+  }
+
   @Test
   void testFindFirst() {
     Optional<Company> maybeCompany = entityStream.of(Company.class) //