Polishing.

Reflect that prepared statements do not inherit query options to avoid cache pollution.

See #1335

Author: mp911de

spring-data-cassandra/src/main/java/org/springframework/data/cassandra/core/CassandraTemplate.java

@@ -982,6 +982,9 @@ public PreparedStatementHandler(Statement<?> statement) {
 
 		@Override
 		public PreparedStatement createPreparedStatement(CqlSession session) throws DriverException {
+
+			// Note that prepared statement settings like the keyspace are gone because using the prepare method with a
+			// statement object causes cache pollution
 			return session.prepare(statement.getQuery());
 		}
 

spring-data-cassandra/src/main/java/org/springframework/data/cassandra/core/ReactiveCassandraTemplate.java

@@ -966,6 +966,9 @@ public PreparedStatementHandler(Statement<?> statement) {
 
 		@Override
 		public Mono<PreparedStatement> createPreparedStatement(ReactiveSession session) throws DriverException {
+
+			// Note that prepared statement settings like the keyspace are gone because using the prepare method with a
+			// statement object causes cache pollution
 			return session.prepare(statement.getQuery());
 		}
 

spring-data-cassandra/src/test/java/org/springframework/data/cassandra/core/CassandraTemplateIntegrationTests.java

@@ -492,11 +492,14 @@ void selectByQueryWithNonExistingKeyspaceShouldThrowThatKeyspaceDoesNotExists()
 
 		User user = new User("heisenberg", "Walter", "White");
 		template.insert(user);
+		template.setUsePreparedStatements(false);
 
 		Query query = Query.query(where("id").is("heisenberg")).queryOptions(queryOptions);
 		assertThatThrownBy(() -> assertThat(template.select(query, User.class)).isEmpty())
 				.isInstanceOf(CassandraInvalidQueryException.class)
 				.hasMessageContaining("Keyspace 'non_existing' does not exist");
+
+		template.setUsePreparedStatements(true);
 	}
 
 	@Test // DATACASS-182