Uses of Annotation Type
dev.langchain4j.Experimental

Packages that use Experimental

Package	Description
dev.langchain4j.data.document
dev.langchain4j.rag
dev.langchain4j.rag.content.aggregator
dev.langchain4j.rag.content.injector
dev.langchain4j.rag.query.router
dev.langchain4j.rag.query.transformer
dev.langchain4j.store.embedding
dev.langchain4j.store.embedding.filter

Uses of Experimental in dev.langchain4j.data.document

Methods in dev.langchain4j.data.document with annotations of type Experimental

Modifier and Type	Method	Description
boolean	Metadata.containsKey(String key)	Check whether this Metadata contains a given key.
Double	Metadata.getDouble(String key)	Returns the Double value associated with the given key.
Float	Metadata.getFloat(String key)	Returns the Float value associated with the given key.
Integer	Metadata.getInteger(String key)	Returns the Integer value associated with the given key.
Long	Metadata.getLong(String key)	Returns the Long value associated with the given key.
String	Metadata.getString(String key)	Returns the String value associated with the given key.
Metadata	Metadata.put(String key, double value)	Adds a key-value pair to the metadata.
Metadata	Metadata.put(String key, float value)	Adds a key-value pair to the metadata.
Metadata	Metadata.put(String key, int value)	Adds a key-value pair to the metadata.
Metadata	Metadata.put(String key, long value)	Adds a key-value pair to the metadata.
Metadata	Metadata.put(String key, String value)	Adds a key-value pair to the metadata.
Map<String,Object>	Metadata.toMap()	Get a copy of the metadata as a map of key-value pairs.

Uses of Experimental in dev.langchain4j.rag

Classes in dev.langchain4j.rag with annotations of type Experimental

Modifier and Type	Interface	Description
interface	RetrievalAugmentor	Augments the provided UserMessage with retrieved content.

Uses of Experimental in dev.langchain4j.rag.content.aggregator

Classes in dev.langchain4j.rag.content.aggregator with annotations of type Experimental

Modifier and Type	Interface	Description
interface	ContentAggregator	Aggregates all Contents retrieved from all ContentRetrievers using all Querys.

Uses of Experimental in dev.langchain4j.rag.content.injector

Classes in dev.langchain4j.rag.content.injector with annotations of type Experimental

Modifier and Type	Interface	Description
interface	ContentInjector	Injects given Contents into a given UserMessage.

Uses of Experimental in dev.langchain4j.rag.query.router

Classes in dev.langchain4j.rag.query.router with annotations of type Experimental

Modifier and Type	Interface	Description
interface	QueryRouter	Routes the given Query to one or multiple ContentRetrievers.

Uses of Experimental in dev.langchain4j.rag.query.transformer

Classes in dev.langchain4j.rag.query.transformer with annotations of type Experimental

Modifier and Type	Interface	Description
interface	QueryTransformer	Transforms the given Query into one or multiple Querys.

Uses of Experimental in dev.langchain4j.store.embedding

Classes in dev.langchain4j.store.embedding with annotations of type Experimental

Modifier and Type	Class	Description
class	EmbeddingSearchRequest	Represents a request to search in an EmbeddingStore.
class	EmbeddingSearchResult<Embedded>	Represents a result of a search in an EmbeddingStore.

Methods in dev.langchain4j.store.embedding with annotations of type Experimental

Modifier and Type	Method	Description
Filter	EmbeddingSearchRequest.filter()
List<EmbeddingMatch<Embedded>>	EmbeddingSearchResult.matches()
int	EmbeddingSearchRequest.maxResults()
double	EmbeddingSearchRequest.minScore()
Embedding	EmbeddingSearchRequest.queryEmbedding()
default EmbeddingSearchResult<Embedded>	EmbeddingStore.search(EmbeddingSearchRequest request)	Searches for the most similar (closest in the embedding space) Embeddings.

Constructors in dev.langchain4j.store.embedding with annotations of type Experimental

Modifier	Constructor	Description
	EmbeddingSearchRequest(Embedding queryEmbedding, Integer maxResults, Double minScore, Filter filter)	Creates an instance of an EmbeddingSearchRequest.
	EmbeddingSearchResult(List<EmbeddingMatch<Embedded>> matches)

Uses of Experimental in dev.langchain4j.store.embedding.filter

Classes in dev.langchain4j.store.embedding.filter with annotations of type Experimental

Modifier and Type	Interface	Description
interface	Filter	This class represents a filter that can be applied during search in an EmbeddingStore.
interface	FilterParser	Parses a filter expression string into a Filter object.
class	MetadataFilterBuilder	A helper class for building a Filter for Metadata key.

Methods in dev.langchain4j.store.embedding.filter with annotations of type Experimental

Modifier and Type	Method	Description
static MetadataFilterBuilder	MetadataFilterBuilder.metadataKey(String key)