Class TablestoreEmbeddingStore

java.lang.Object
dev.langchain4j.store.embedding.tablestore.TablestoreEmbeddingStore
All Implemented Interfaces:
EmbeddingStore<TextSegment>
public class TablestoreEmbeddingStore extends Object implements EmbeddingStore<TextSegment>

  • Constructor Details

    • TablestoreEmbeddingStore

      public TablestoreEmbeddingStore(com.alicloud.openservices.tablestore.SyncClient client, int vectorDimension)

    • TablestoreEmbeddingStore

      public TablestoreEmbeddingStore(com.alicloud.openservices.tablestore.SyncClient client, int vectorDimension, List<com.alicloud.openservices.tablestore.model.search.FieldSchema> metadataSchemaList)

    • TablestoreEmbeddingStore

      public TablestoreEmbeddingStore(com.alicloud.openservices.tablestore.SyncClient client, String tableName, String searchIndexName, String pkName, String textField, String embeddingField, int vectorDimension, com.alicloud.openservices.tablestore.model.search.vector.VectorMetricType vectorMetricType, List<com.alicloud.openservices.tablestore.model.search.FieldSchema> metadataSchemaList)

  • Method Details

    • init

      public void init()

    • getClient

      public com.alicloud.openservices.tablestore.SyncClient getClient()

    • getTableName

      public String getTableName()

    • getSearchIndexName

      public String getSearchIndexName()

    • getPkName

      public String getPkName()

    • getTextField

      public String getTextField()

    • getEmbeddingField

      public String getEmbeddingField()

    • getVectorDimension

      public int getVectorDimension()

    • getVectorMetricType

      public com.alicloud.openservices.tablestore.model.search.vector.VectorMetricType getVectorMetricType()

    • getMetadataSchemaList

      public List<com.alicloud.openservices.tablestore.model.search.FieldSchema> getMetadataSchemaList()

    • add

      public String add(Embedding embedding)
      Description copied from interface: EmbeddingStore
      Adds a given embedding to the store.
      Specified by:
      add in interface EmbeddingStore<TextSegment>
      Parameters:
      embedding - The embedding to be added to the store.
      Returns:
      The auto-generated ID associated with the added embedding.

    • add

      public void add(String id, Embedding embedding)
      Description copied from interface: EmbeddingStore
      Adds a given embedding to the store.
      Specified by:
      add in interface EmbeddingStore<TextSegment>
      Parameters:
      id - The unique identifier for the embedding to be added.
      embedding - The embedding to be added to the store.

    • add

      public String add(Embedding embedding, TextSegment textSegment)
      Description copied from interface: EmbeddingStore
      Adds a given embedding and the corresponding content that has been embedded to the store.
      Specified by:
      add in interface EmbeddingStore<TextSegment>
      Parameters:
      embedding - The embedding to be added to the store.
      textSegment - Original content that was embedded.
      Returns:
      The auto-generated ID associated with the added embedding.

    • addAll

      public List<String> addAll(List<Embedding> embeddings)
      Description copied from interface: EmbeddingStore
      Adds multiple embeddings to the store.
      Specified by:
      addAll in interface EmbeddingStore<TextSegment>
      Parameters:
      embeddings - A list of embeddings to be added to the store.
      Returns:
      A list of auto-generated IDs associated with the added embeddings.

    • addAll

      public void addAll(List<String> ids, List<Embedding> embeddings, List<TextSegment> embedded)
      Description copied from interface: EmbeddingStore
      Adds multiple embeddings and their corresponding contents that have been embedded to the store.

      The lists are positional: the i-th ID, the i-th embedding and the i-th embedded content belong together. ids and embeddings must therefore have the same size, and embedded, when provided, must have that size as well. A null list of IDs or embeddings counts as an empty list, so passing embeddings without IDs (or the other way around) is a size mismatch, not an empty input. ValidationUtils.ensureConsistentSizes(List, List, List) implements these rules and should be used by implementations.

      Passing no embeddings at all (an empty or null embeddings together with an empty or null ids, and no embedded contents) is a no-op: nothing is stored and no exception is thrown.

      Specified by:
      addAll in interface EmbeddingStore<TextSegment>
      Parameters:
      ids - A list of IDs associated with the added embeddings.
      embeddings - A list of embeddings to be added to the store.
      embedded - A list of original contents that were embedded, or null if they were not provided.

    • remove

      public void remove(String id)
      Description copied from interface: EmbeddingStore
      Removes a single embedding from the store by ID.
      Specified by:
      remove in interface EmbeddingStore<TextSegment>
      Parameters:
      id - The unique ID of the embedding to be removed.

    • removeAll

      public void removeAll(Collection<String> ids)
      Description copied from interface: EmbeddingStore
      Removes all embeddings that match the specified IDs from the store.

      Having nothing to remove is a no-op: an empty or null collection of IDs leaves the store unchanged and throws nothing, in the same way that adding no embeddings stores nothing.

      Specified by:
      removeAll in interface EmbeddingStore<TextSegment>
      Parameters:
      ids - A collection of unique IDs of the embeddings to be removed.

    • removeAll

      public void removeAll(Filter filter)
      Description copied from interface: EmbeddingStore
      Removes all embeddings that match the specified Filter from the store.
      Specified by:
      removeAll in interface EmbeddingStore<TextSegment>
      Parameters:
      filter - The filter to be applied to the Metadata of the TextSegment during removal. Only embeddings whose TextSegment's Metadata match the Filter will be removed.

    • removeAll

      public void removeAll()
      Description copied from interface: EmbeddingStore
      Removes all embeddings from the store.
      Specified by:
      removeAll in interface EmbeddingStore<TextSegment>

    • search

      public EmbeddingSearchResult<TextSegment> search(EmbeddingSearchRequest request)
      Description copied from interface: EmbeddingStore
      Searches for the most similar (closest in the embedding space) Embeddings.
      All search criteria are defined inside the EmbeddingSearchRequest.
      EmbeddingSearchRequest.filter() can be used to filter by various metadata entries (e.g., user/memory ID). Please note that not all EmbeddingStore implementations support Filtering.
      Specified by:
      search in interface EmbeddingStore<TextSegment>
      Parameters:
      request - A request to search in an EmbeddingStore. Contains all search criteria.
      Returns:
      An EmbeddingSearchResult containing all found Embeddings.

    • mapFilterToQuery

      protected com.alicloud.openservices.tablestore.model.search.query.Query mapFilterToQuery(Filter filter)

    • deleteTableAndIndex

      protected void deleteTableAndIndex()

    • innerAdd

      protected void innerAdd(String id, Embedding embedding, TextSegment textSegment)

    • innerDelete

      protected void innerDelete(String id)