Class HibernateEmbeddingStore.DynamicDatasourceBuilder

java.lang.Object

dev.langchain4j.store.embedding.hibernate.HibernateEmbeddingStore.BaseBuilder<EmbeddingEntity>

dev.langchain4j.store.embedding.hibernate.HibernateEmbeddingStore.DynamicDatasourceBuilder

Enclosing class:

HibernateEmbeddingStore<E>

public static class HibernateEmbeddingStore.DynamicDatasourceBuilder
extends HibernateEmbeddingStore.BaseBuilder<EmbeddingEntity>

Field Summary

Fields inherited from class HibernateEmbeddingStore.BaseBuilder

createIndex, createTable, databaseKind, dimension, distanceFunction, dropTableFirst, indexOptions, indexType, queryHints, table

Method Summary

Modifier and Type	Method	Description
HibernateEmbeddingStore<EmbeddingEntity>	build()
HibernateEmbeddingStore.DynamicDatasourceBuilder	createIndex(Boolean createIndex)
HibernateEmbeddingStore.DynamicDatasourceBuilder	createTable(Boolean createTable)
HibernateEmbeddingStore.DynamicDatasourceBuilder	databaseKind(DatabaseKind databaseKind)
HibernateEmbeddingStore.DynamicDatasourceBuilder	dataSource(DataSource datasource)
HibernateEmbeddingStore.DynamicDatasourceBuilder	dimension(Integer dimension)
HibernateEmbeddingStore.DynamicDatasourceBuilder	distanceFunction(DistanceFunction distanceFunction)
HibernateEmbeddingStore.DynamicDatasourceBuilder	dropTableFirst(Boolean dropTableFirst)
HibernateEmbeddingStore.DynamicDatasourceBuilder	indexOptions(String indexOptions)
HibernateEmbeddingStore.DynamicDatasourceBuilder	indexType(String indexType)
HibernateEmbeddingStore.DynamicDatasourceBuilder	queryHints(Map<String,Object> queryHints)	Sets query hints that are applied to every similarity search (search(...) and query(...)).
HibernateEmbeddingStore.DynamicDatasourceBuilder	table(String table)
String	toString()

Methods inherited from class HibernateEmbeddingStore.BaseBuilder

createConfiguration, createConfiguration, createSessionFactory

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Details

dataSource

public HibernateEmbeddingStore.DynamicDatasourceBuilder dataSource(DataSource datasource)

databaseKind

public HibernateEmbeddingStore.DynamicDatasourceBuilder databaseKind(DatabaseKind databaseKind)

Overrides:

databaseKind in class HibernateEmbeddingStore.BaseBuilder<EmbeddingEntity>

table

public HibernateEmbeddingStore.DynamicDatasourceBuilder table(String table)

Overrides:

table in class HibernateEmbeddingStore.BaseBuilder<EmbeddingEntity>

dimension

public HibernateEmbeddingStore.DynamicDatasourceBuilder dimension(Integer dimension)

Overrides:

dimension in class HibernateEmbeddingStore.BaseBuilder<EmbeddingEntity>

createIndex

public HibernateEmbeddingStore.DynamicDatasourceBuilder createIndex(Boolean createIndex)

Overrides:

createIndex in class HibernateEmbeddingStore.BaseBuilder<EmbeddingEntity>

indexType

public HibernateEmbeddingStore.DynamicDatasourceBuilder indexType(String indexType)

Overrides:

indexType in class HibernateEmbeddingStore.BaseBuilder<EmbeddingEntity>

indexOptions

public HibernateEmbeddingStore.DynamicDatasourceBuilder indexOptions(String indexOptions)

Overrides:

indexOptions in class HibernateEmbeddingStore.BaseBuilder<EmbeddingEntity>

createTable

public HibernateEmbeddingStore.DynamicDatasourceBuilder createTable(Boolean createTable)

Overrides:

createTable in class HibernateEmbeddingStore.BaseBuilder<EmbeddingEntity>

dropTableFirst

public HibernateEmbeddingStore.DynamicDatasourceBuilder dropTableFirst(Boolean dropTableFirst)

Overrides:

dropTableFirst in class HibernateEmbeddingStore.BaseBuilder<EmbeddingEntity>

distanceFunction

public HibernateEmbeddingStore.DynamicDatasourceBuilder distanceFunction(DistanceFunction distanceFunction)

Overrides:

distanceFunction in class HibernateEmbeddingStore.BaseBuilder<EmbeddingEntity>

queryHints

public HibernateEmbeddingStore.DynamicDatasourceBuilder queryHints(Map<String,Object> queryHints)

Description copied from class: HibernateEmbeddingStore.BaseBuilder

Sets query hints that are applied to every similarity search (search(...) and query(...)). They are not applied when embeddings are added or removed.

Each entry is passed to Hibernate's SelectionQuery.setHint(String, Object). The value of HibernateHints.HINT_QUERY_DATABASE is written into the generated query, so it is specific to one database. To pass more than one such database hint, use a Collection of Strings as the value.

A database kind can add default hints, see DatabaseKind.defaultQueryHints(). A hint set here replaces the default hint with the same name. For example, a Milvus search uses the session consistency level by default, so it sees the embeddings that this application added just before it. To also see the embeddings that other applications added just before it, use the strong consistency level:

.queryHints(Map.of(HibernateHints.HINT_QUERY_DATABASE, MilvusDatabaseHints.CONSISTENCY_LEVEL + "=STRONG"))

Overrides:

queryHints in class HibernateEmbeddingStore.BaseBuilder<EmbeddingEntity>

Parameters:

queryHints - the query hints, or null for only the default hints of the database kind

Returns:

this builder

build

public HibernateEmbeddingStore<EmbeddingEntity> build()

toString

public String toString()

Overrides:

toString in class Object