Package com.google.genkit.plugins.postgresql

Enum Class PostgresTableConfig.DistanceStrategy

java.lang.Object

java.lang.Enum<PostgresTableConfig.DistanceStrategy>

com.google.genkit.plugins.postgresql.PostgresTableConfig.DistanceStrategy

All Implemented Interfaces:

Serializable, Comparable<PostgresTableConfig.DistanceStrategy>, Constable

Enclosing class:

PostgresTableConfig

public static enum PostgresTableConfig.DistanceStrategy
extends Enum<PostgresTableConfig.DistanceStrategy>

Distance strategies for vector similarity search.

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
COSINE	Cosine distance (1 - cosine similarity).
INNER_PRODUCT	Inner product (negative dot product for distance).
L2	L2 (Euclidean) distance.

Method Summary

Modifier and Type	Method	Description
String	getIndexOpsClass()	Gets the pgvector operator class for index creation.
String	getOperator()	Gets the SQL operator for distance calculation.
static PostgresTableConfig.DistanceStrategy	valueOf(String name)	Returns the enum constant of this class with the specified name.
static PostgresTableConfig.DistanceStrategy[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

COSINE

public static final PostgresTableConfig.DistanceStrategy COSINE

Cosine distance (1 - cosine similarity). Best for normalized vectors.

L2

public static final PostgresTableConfig.DistanceStrategy L2

L2 (Euclidean) distance. Best for comparing actual distances.

INNER_PRODUCT

public static final PostgresTableConfig.DistanceStrategy INNER_PRODUCT

Inner product (negative dot product for distance). Best when vectors are not normalized.

Method Details

values

public static PostgresTableConfig.DistanceStrategy[] 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 PostgresTableConfig.DistanceStrategy 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

getIndexOpsClass

public String getIndexOpsClass()

Gets the pgvector operator class for index creation.

getOperator

public String getOperator()

Gets the SQL operator for distance calculation.