Addressing PR review

Author: sobychacko

vector-stores/spring-ai-cassandra-store/src/test/java/org/springframework/ai/vectorstore/cassandra/CassandraRichSchemaVectorStoreIT.java

@@ -143,7 +143,7 @@ static CassandraVectorStore.CassandraBuilder storeBuilder(ApplicationContext con
 			.documentIdTranslator(id -> {
 				String[] parts = id.split("§¶");
 				String title = parts[0];
-				int chunk_no = parts.length > 0 ? Integer.parseInt(parts[1]) : 0;
+				int chunk_no = 0 < parts.length ? Integer.parseInt(parts[1]) : 0;
 				return List.of("simplewiki", "en", title, chunk_no);
 			});
 	}

vector-stores/spring-ai-cassandra-store/src/test/java/org/springframework/ai/vectorstore/cassandra/WikiVectorStoreExample.java

@@ -113,7 +113,7 @@ public CassandraVectorStore store(CqlSession cqlSession, EmbeddingModel embeddin
 				.documentIdTranslator(id -> {
 					String[] parts = id.split("§¶");
 					String title = parts[0];
-					int chunk_no = parts.length > 0 ? Integer.parseInt(parts[1]) : 0;
+					int chunk_no = 0 < parts.length ? Integer.parseInt(parts[1]) : 0;
 					return List.of("simplewiki", "en", title, chunk_no, 0);
 				})
 				.embeddingModel(embeddingModel())