Deprecated API

Contents

• Interfaces
• Classes
• Methods

Deprecated Interfaces

Interface	Description
dev.langchain4j.retriever.Retriever

Deprecated Classes

Class	Description
dev.langchain4j.internal.Json	use Jackson's ObjectMapper
dev.langchain4j.retriever.EmbeddingStoreRetriever	use EmbeddingStoreContentRetriever instead.

Deprecated Methods

Method	Description
dev.langchain4j.data.document.Document.metadata(String)	as of 0.31.0, use Document.metadata() and then Metadata.getString(String), Metadata.getInteger(String), Metadata.getLong(String), Metadata.getFloat(String), Metadata.getDouble(String) instead.
dev.langchain4j.data.document.Metadata.add(String, Object)	as of 0.31.0, use Metadata.put(String, String), Metadata.put(String, int), Metadata.put(String, long), Metadata.put(String, float), Metadata.put(String, double) instead.
dev.langchain4j.data.document.Metadata.add(String, String)	as of 0.31.0, use Metadata.put(String, String), Metadata.put(String, int), Metadata.put(String, long), Metadata.put(String, float), Metadata.put(String, double) instead.
dev.langchain4j.data.document.Metadata.asMap()	as of 0.31.0, use Metadata.toMap() instead.
dev.langchain4j.data.document.Metadata.from(String, Object)	Use Metadata.from(String, String) instead
dev.langchain4j.data.document.Metadata.get(String)	as of 0.31.0, use Metadata.getString(String), Metadata.getInteger(String), Metadata.getLong(String), Metadata.getFloat(String), Metadata.getDouble(String) instead.
dev.langchain4j.data.document.Metadata.metadata(String, Object)	Use Metadata.metadata(String, String) instead
dev.langchain4j.data.message.ChatMessage.text()	decode through ChatMessage.type() instead.
dev.langchain4j.data.message.UserMessage.text()	Use UserMessage.singleText() or UserMessage.contents() instead.
dev.langchain4j.data.segment.TextSegment.metadata(String)	as of 0.31.0, use TextSegment.metadata() and then Metadata.getString(String), Metadata.getInteger(String), Metadata.getLong(String), Metadata.getFloat(String), Metadata.getDouble(String) instead.
dev.langchain4j.internal.Json.fromJson(String, Class<T>)	use Jackson's ObjectMapper
dev.langchain4j.internal.Json.toInputStream(Object, Class<?>)	use Jackson's ObjectMapper
dev.langchain4j.internal.Json.toJson(Object)	use Jackson's ObjectMapper
dev.langchain4j.internal.Utils.isCollectionEmpty(Collection<?>)	Use Utils.isNullOrEmpty(Collection) instead.
dev.langchain4j.model.output.TokenUsage.add(TokenUsage)	use TokenUsage.sum(TokenUsage, TokenUsage) instead
dev.langchain4j.rag.content.injector.ContentInjector.inject(List<Content>, UserMessage)	Use/implement ContentInjector.inject(List, ChatMessage) instead.
dev.langchain4j.rag.content.injector.DefaultContentInjector.createPrompt(UserMessage, List<Content>)	implement/override DefaultContentInjector.createPrompt(ChatMessage, List) instead.
dev.langchain4j.rag.content.injector.DefaultContentInjector.inject(List<Content>, UserMessage)	use DefaultContentInjector.inject(List, ChatMessage) instead.
dev.langchain4j.rag.DefaultRetrievalAugmentor.augment(UserMessage, Metadata)	use DefaultRetrievalAugmentor.augment(AugmentationRequest) instead.
dev.langchain4j.rag.RetrievalAugmentor.augment(UserMessage, Metadata)	Use/implement RetrievalAugmentor.augment(AugmentationRequest) instead.
dev.langchain4j.store.embedding.EmbeddingStore.findRelevant(Embedding, int)	as of 0.31.0, use EmbeddingStore.search(EmbeddingSearchRequest) instead.
dev.langchain4j.store.embedding.EmbeddingStore.findRelevant(Embedding, int, double)	as of 0.31.0, use EmbeddingStore.search(EmbeddingSearchRequest) instead.
dev.langchain4j.store.embedding.EmbeddingStore.findRelevant(Object, Embedding, int)	as of 0.31.0, use EmbeddingStore.search(EmbeddingSearchRequest) instead.
dev.langchain4j.store.embedding.EmbeddingStore.findRelevant(Object, Embedding, int, double)	as of 0.31.0, use EmbeddingStore.search(EmbeddingSearchRequest) instead.