# The pipeline as Spring beans (the shipped configuration, fake models)

stage / role                 bean name                    actual class
DocumentTransformer          chunker                      TokenTextSplitter
EmbeddingModel               embeddingModel               HashingEmbeddingModel
VectorStore                  vectorStore                  PgVectorStore
RetrievalAugmentationAdvisor retrievalAdvisor             RetrievalAugmentationAdvisor
LlmReranker                  reranker                     LlmReranker
ChatModel                    chatModel                    FakeChatModel
ChatClient                   ragChatClient                DefaultChatClient
FactCheckingEvaluator        factChecker                  FactCheckingEvaluator
IngestionService             ingestionService             IngestionService
RagQueryService              ragQueryService              RagQueryService