Package org.springframework.ai.vectorstore.oracle

Enum Class OracleVectorStore.OracleVectorStoreIndexType

java.lang.Object

java.lang.Enum<OracleVectorStore.OracleVectorStoreIndexType>

org.springframework.ai.vectorstore.oracle.OracleVectorStore.OracleVectorStoreIndexType

All Implemented Interfaces:

Serializable, Comparable<OracleVectorStore.OracleVectorStoreIndexType>, Constable

Enclosing class:

OracleVectorStore

public static enum OracleVectorStore.OracleVectorStoreIndexType
extends Enum<OracleVectorStore.OracleVectorStoreIndexType>

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
HNSW	The default type of index created for an In-Memory Neighbor Graph vector index is Hierarchical Navigable Small World (HNSW).
IVF	The default type of index created for a Neighbor Partition vector index is Inverted File Flat (IVF) vector index.
NONE	Performs exact nearest neighbor search.

Method Summary

Modifier and Type	Method	Description
static OracleVectorStore.OracleVectorStoreIndexType	valueOf(String name)	Returns the enum constant of this class with the specified name.
static OracleVectorStore.OracleVectorStoreIndexType[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

NONE

public static final OracleVectorStore.OracleVectorStoreIndexType NONE

Performs exact nearest neighbor search.

HNSW

public static final OracleVectorStore.OracleVectorStoreIndexType HNSW

The default type of index created for an In-Memory Neighbor Graph vector index is Hierarchical Navigable Small World (HNSW).

With Navigable Small World (NSW), the idea is to build a proximity graph where each vector in the graph connects to several others based on three characteristics:

• The distance between vectors
• The maximum number of closest vector candidates considered at each step of the search during insertion (EFCONSTRUCTION)
• Within the maximum number of connections (NEIGHBORS) permitted per vector

See Also:

• Oracle Database documentation

IVF

public static final OracleVectorStore.OracleVectorStoreIndexType IVF

The default type of index created for a Neighbor Partition vector index is Inverted File Flat (IVF) vector index. The IVF index is a technique designed to enhance search efficiency by narrowing the search area through the use of neighbor partitions or clusters.

* @see Oracle Database documentation

Method Details

values

public static OracleVectorStore.OracleVectorStoreIndexType[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static OracleVectorStore.OracleVectorStoreIndexType valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null