Retain type for bitwise update

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/query/Update.java

@@ -1047,6 +1047,19 @@ public class Update implements UpdateDefinition {
 			return reference;
 		}
 
+		/**
+		 * Updates to the result of a bitwise and operation between the current value and the given one.
+		 *
+		 * @param value
+		 * @return never {@literal null}.
+		 * @since 4.5.9
+		 */
+		public Update and(int value) {
+
+			addFieldOperation(BitwiseOperator.AND, value);
+			return reference;
+		}
+
 		/**
 		 * Updates to the result of a bitwise or operation between the current value and the given one.
 		 *
@@ -1059,6 +1072,19 @@ public class Update implements UpdateDefinition {
 			return reference;
 		}
 
+		/**
+		 * Updates to the result of a bitwise or operation between the current value and the given one.
+		 *
+		 * @param value
+		 * @return never {@literal null}.
+		 * @since 4.5.9
+		 */
+		public Update or(int value) {
+
+			addFieldOperation(BitwiseOperator.OR, value);
+			return reference;
+		}
+
 		/**
 		 * Updates to the result of a bitwise xor operation between the current value and the given one.
 		 *
@@ -1071,6 +1097,19 @@ public class Update implements UpdateDefinition {
 			return reference;
 		}
 
+		/**
+		 * Updates to the result of a bitwise xor operation between the current value and the given one.
+		 *
+		 * @param value
+		 * @return never {@literal null}.
+		 * @since 4.5.9
+		 */
+		public Update xor(int value) {
+
+			addFieldOperation(BitwiseOperator.XOR, value);
+			return reference;
+		}
+
 		private void addFieldOperation(BitwiseOperator operator, Number value) {
 			reference.addMultiFieldOperation(BIT_OPERATOR, key, new Document(operator.toString(), value));
 		}

spring-data-mongodb/src/test/java/org/springframework/data/mongodb/core/MongoTemplateUpdateTests.java

@@ -29,7 +29,6 @@ import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
-
 import org.springframework.data.annotation.Id;
 import org.springframework.data.annotation.Version;
 import org.springframework.data.domain.Sort;
@@ -339,6 +338,30 @@ class MongoTemplateUpdateTests {
 				.append("_class", "org.springframework.data.mongodb.core.MongoTemplateUpdateTests$Versioned"));
 	}
 
+	@Test // GH-5146
+	void bitOperatorShouldRetainInputType() {
+
+		MongoCollection<org.bson.Document> collection = collection(Score.class);
+		collection.insertOne(new org.bson.Document("_id", "bitwise-update-int").append("extraCredit", 10));
+		collection.insertOne(new org.bson.Document("_id", "bitwise-update-long").append("extraCredit", 10));
+
+		Query queryInt = Query.query(Criteria.where("_id").is("bitwise-update-int"));
+		Update updateInt = new Update().bitwise("extraCredit").or(100);
+		template.updateFirst(queryInt, updateInt, template.getCollectionName(Score.class));
+
+		Query queryLong = Query.query(Criteria.where("_id").is("bitwise-update-long"));
+		Update updateLong = new Update().bitwise("extraCredit").or(100L);
+		template.updateFirst(queryLong, updateLong, template.getCollectionName(Score.class));
+
+		org.bson.Document $project = org.bson.Document
+				.parse("{ $project : { 'extraCredit-field-type' : { $type : '$extraCredit'}} }");
+		ArrayList<org.bson.Document> fieldTypesAfterUpdate = collection.aggregate(List.of($project))
+				.into(new ArrayList<>());
+		assertThat(fieldTypesAfterUpdate).containsExactly(
+				new org.bson.Document("_id", "bitwise-update-int").append("extraCredit-field-type", "int"), //
+				new org.bson.Document("_id", "bitwise-update-long").append("extraCredit-field-type", "long"));
+	}
+
 	private List<org.bson.Document> all(Class<?> type) {
 		return collection(type).find(new org.bson.Document()).into(new ArrayList<>());
 	}