Class FindNearest (2.25.1)

public final class FindNearest extends GeneratedMessageV3 implements FindNearestOrBuilder

Nearest Neighbors search config. The ordering provided by FindNearest supersedes the order_by stage. If multiple documents have the same vector distance, the returned document order is not guaranteed to be stable between queries.

Protobuf type google.datastore.v1.FindNearest

Static Fields

DISTANCE_MEASURE_FIELD_NUMBER

public static final int DISTANCE_MEASURE_FIELD_NUMBER
Field Value
Type Description
int

DISTANCE_RESULT_PROPERTY_FIELD_NUMBER

public static final int DISTANCE_RESULT_PROPERTY_FIELD_NUMBER
Field Value
Type Description
int

DISTANCE_THRESHOLD_FIELD_NUMBER

public static final int DISTANCE_THRESHOLD_FIELD_NUMBER
Field Value
Type Description
int

LIMIT_FIELD_NUMBER

public static final int LIMIT_FIELD_NUMBER
Field Value
Type Description
int

QUERY_VECTOR_FIELD_NUMBER

public static final int QUERY_VECTOR_FIELD_NUMBER
Field Value
Type Description
int

VECTOR_PROPERTY_FIELD_NUMBER

public static final int VECTOR_PROPERTY_FIELD_NUMBER
Field Value
Type Description
int

Static Methods

getDefaultInstance()

public static FindNearest getDefaultInstance()
Returns
Type Description
FindNearest

getDescriptor()

public static final Descriptors.Descriptor getDescriptor()
Returns
Type Description
Descriptor

newBuilder()

public static FindNearest.Builder newBuilder()
Returns
Type Description
FindNearest.Builder

newBuilder(FindNearest prototype)

public static FindNearest.Builder newBuilder(FindNearest prototype)
Parameter
Name Description
prototype FindNearest
Returns
Type Description
FindNearest.Builder

parseDelimitedFrom(InputStream input)

public static FindNearest parseDelimitedFrom(InputStream input)
Parameter
Name Description
input InputStream
Returns
Type Description
FindNearest
Exceptions
Type Description
IOException

parseDelimitedFrom(InputStream input, ExtensionRegistryLite extensionRegistry)

public static FindNearest parseDelimitedFrom(InputStream input, ExtensionRegistryLite extensionRegistry)
Parameters
Name Description
input InputStream
extensionRegistry ExtensionRegistryLite
Returns
Type Description
FindNearest
Exceptions
Type Description
IOException

parseFrom(byte[] data)

public static FindNearest parseFrom(byte[] data)
Parameter
Name Description
data byte[]
Returns
Type Description
FindNearest
Exceptions
Type Description
InvalidProtocolBufferException

parseFrom(byte[] data, ExtensionRegistryLite extensionRegistry)

public static FindNearest parseFrom(byte[] data, ExtensionRegistryLite extensionRegistry)
Parameters
Name Description
data byte[]
extensionRegistry ExtensionRegistryLite
Returns
Type Description
FindNearest
Exceptions
Type Description
InvalidProtocolBufferException

parseFrom(ByteString data)

public static FindNearest parseFrom(ByteString data)
Parameter
Name Description
data ByteString
Returns
Type Description
FindNearest
Exceptions
Type Description
InvalidProtocolBufferException

parseFrom(ByteString data, ExtensionRegistryLite extensionRegistry)

public static FindNearest parseFrom(ByteString data, ExtensionRegistryLite extensionRegistry)
Parameters
Name Description
data ByteString
extensionRegistry ExtensionRegistryLite
Returns
Type Description
FindNearest
Exceptions
Type Description
InvalidProtocolBufferException

parseFrom(CodedInputStream input)

public static FindNearest parseFrom(CodedInputStream input)
Parameter
Name Description
input CodedInputStream
Returns
Type Description
FindNearest
Exceptions
Type Description
IOException

parseFrom(CodedInputStream input, ExtensionRegistryLite extensionRegistry)

public static FindNearest parseFrom(CodedInputStream input, ExtensionRegistryLite extensionRegistry)
Parameters
Name Description
input CodedInputStream
extensionRegistry ExtensionRegistryLite
Returns
Type Description
FindNearest
Exceptions
Type Description
IOException

parseFrom(InputStream input)

public static FindNearest parseFrom(InputStream input)
Parameter
Name Description
input InputStream
Returns
Type Description
FindNearest
Exceptions
Type Description
IOException

parseFrom(InputStream input, ExtensionRegistryLite extensionRegistry)

public static FindNearest parseFrom(InputStream input, ExtensionRegistryLite extensionRegistry)
Parameters
Name Description
input InputStream
extensionRegistry ExtensionRegistryLite
Returns
Type Description
FindNearest
Exceptions
Type Description
IOException

parseFrom(ByteBuffer data)

public static FindNearest parseFrom(ByteBuffer data)
Parameter
Name Description
data ByteBuffer
Returns
Type Description
FindNearest
Exceptions
Type Description
InvalidProtocolBufferException

parseFrom(ByteBuffer data, ExtensionRegistryLite extensionRegistry)

public static FindNearest parseFrom(ByteBuffer data, ExtensionRegistryLite extensionRegistry)
Parameters
Name Description
data ByteBuffer
extensionRegistry ExtensionRegistryLite
Returns
Type Description
FindNearest
Exceptions
Type Description
InvalidProtocolBufferException

parser()

public static Parser<FindNearest> parser()
Returns
Type Description
Parser<FindNearest>

Methods

equals(Object obj)

public boolean equals(Object obj)
Parameter
Name Description
obj Object
Returns
Type Description
boolean
Overrides

getDefaultInstanceForType()

public FindNearest getDefaultInstanceForType()
Returns
Type Description
FindNearest

getDistanceMeasure()

public FindNearest.DistanceMeasure getDistanceMeasure()

Required. The Distance Measure to use, required.

.google.datastore.v1.FindNearest.DistanceMeasure distance_measure = 3 [(.google.api.field_behavior) = REQUIRED];

Returns
Type Description
FindNearest.DistanceMeasure

The distanceMeasure.

getDistanceMeasureValue()

public int getDistanceMeasureValue()

Required. The Distance Measure to use, required.

.google.datastore.v1.FindNearest.DistanceMeasure distance_measure = 3 [(.google.api.field_behavior) = REQUIRED];

Returns
Type Description
int

The enum numeric value on the wire for distanceMeasure.

getDistanceResultProperty()

public String getDistanceResultProperty()

Optional. Optional name of the field to output the result of the vector distance calculation. Must conform to entity property limitations.

string distance_result_property = 5 [(.google.api.field_behavior) = OPTIONAL];

Returns
Type Description
String

The distanceResultProperty.

getDistanceResultPropertyBytes()

public ByteString getDistanceResultPropertyBytes()

Optional. Optional name of the field to output the result of the vector distance calculation. Must conform to entity property limitations.

string distance_result_property = 5 [(.google.api.field_behavior) = OPTIONAL];

Returns
Type Description
ByteString

The bytes for distanceResultProperty.

getDistanceThreshold()

public DoubleValue getDistanceThreshold()

Optional. Option to specify a threshold for which no less similar documents will be returned. The behavior of the specified distance_measure will affect the meaning of the distance threshold. Since DOT_PRODUCT distances increase when the vectors are more similar, the comparison is inverted.

For EUCLIDEAN, COSINE: WHERE distance <= distance_threshold For DOT_PRODUCT: WHERE distance >= distance_threshold

.google.protobuf.DoubleValue distance_threshold = 6 [(.google.api.field_behavior) = OPTIONAL];

Returns
Type Description
DoubleValue

The distanceThreshold.

getDistanceThresholdOrBuilder()

public DoubleValueOrBuilder getDistanceThresholdOrBuilder()

Optional. Option to specify a threshold for which no less similar documents will be returned. The behavior of the specified distance_measure will affect the meaning of the distance threshold. Since DOT_PRODUCT distances increase when the vectors are more similar, the comparison is inverted.

For EUCLIDEAN, COSINE: WHERE distance <= distance_threshold For DOT_PRODUCT: WHERE distance >= distance_threshold

.google.protobuf.DoubleValue distance_threshold = 6 [(.google.api.field_behavior) = OPTIONAL];

Returns
Type Description
DoubleValueOrBuilder

getLimit()

public Int32Value getLimit()

Required. The number of nearest neighbors to return. Must be a positive integer of no more than 100.

.google.protobuf.Int32Value limit = 4 [(.google.api.field_behavior) = REQUIRED];

Returns
Type Description
Int32Value

The limit.

getLimitOrBuilder()

public Int32ValueOrBuilder getLimitOrBuilder()

Required. The number of nearest neighbors to return. Must be a positive integer of no more than 100.

.google.protobuf.Int32Value limit = 4 [(.google.api.field_behavior) = REQUIRED];

Returns
Type Description
Int32ValueOrBuilder

getParserForType()

public Parser<FindNearest> getParserForType()
Returns
Type Description
Parser<FindNearest>
Overrides

getQueryVector()

public Value getQueryVector()

Required. The query vector that we are searching on. Must be a vector of no more than 2048 dimensions.

.google.datastore.v1.Value query_vector = 2 [(.google.api.field_behavior) = REQUIRED];

Returns
Type Description
Value

The queryVector.

getQueryVectorOrBuilder()

public ValueOrBuilder getQueryVectorOrBuilder()

Required. The query vector that we are searching on. Must be a vector of no more than 2048 dimensions.

.google.datastore.v1.Value query_vector = 2 [(.google.api.field_behavior) = REQUIRED];

Returns
Type Description
ValueOrBuilder

getSerializedSize()

public int getSerializedSize()
Returns
Type Description
int
Overrides

getVectorProperty()

public PropertyReference getVectorProperty()

Required. An indexed vector property to search upon. Only documents which contain vectors whose dimensionality match the query_vector can be returned.

.google.datastore.v1.PropertyReference vector_property = 1 [(.google.api.field_behavior) = REQUIRED];

Returns
Type Description
PropertyReference

The vectorProperty.

getVectorPropertyOrBuilder()

public PropertyReferenceOrBuilder getVectorPropertyOrBuilder()

Required. An indexed vector property to search upon. Only documents which contain vectors whose dimensionality match the query_vector can be returned.

.google.datastore.v1.PropertyReference vector_property = 1 [(.google.api.field_behavior) = REQUIRED];

Returns
Type Description
PropertyReferenceOrBuilder

hasDistanceThreshold()

public boolean hasDistanceThreshold()

Optional. Option to specify a threshold for which no less similar documents will be returned. The behavior of the specified distance_measure will affect the meaning of the distance threshold. Since DOT_PRODUCT distances increase when the vectors are more similar, the comparison is inverted.

For EUCLIDEAN, COSINE: WHERE distance <= distance_threshold For DOT_PRODUCT: WHERE distance >= distance_threshold

.google.protobuf.DoubleValue distance_threshold = 6 [(.google.api.field_behavior) = OPTIONAL];

Returns
Type Description
boolean

Whether the distanceThreshold field is set.

hasLimit()

public boolean hasLimit()

Required. The number of nearest neighbors to return. Must be a positive integer of no more than 100.

.google.protobuf.Int32Value limit = 4 [(.google.api.field_behavior) = REQUIRED];

Returns
Type Description
boolean

Whether the limit field is set.

hasQueryVector()

public boolean hasQueryVector()

Required. The query vector that we are searching on. Must be a vector of no more than 2048 dimensions.

.google.datastore.v1.Value query_vector = 2 [(.google.api.field_behavior) = REQUIRED];

Returns
Type Description
boolean

Whether the queryVector field is set.

hasVectorProperty()

public boolean hasVectorProperty()

Required. An indexed vector property to search upon. Only documents which contain vectors whose dimensionality match the query_vector can be returned.

.google.datastore.v1.PropertyReference vector_property = 1 [(.google.api.field_behavior) = REQUIRED];

Returns
Type Description
boolean

Whether the vectorProperty field is set.

hashCode()

public int hashCode()
Returns
Type Description
int
Overrides

internalGetFieldAccessorTable()

protected GeneratedMessageV3.FieldAccessorTable internalGetFieldAccessorTable()
Returns
Type Description
FieldAccessorTable
Overrides

isInitialized()

public final boolean isInitialized()
Returns
Type Description
boolean
Overrides

newBuilderForType()

public FindNearest.Builder newBuilderForType()
Returns
Type Description
FindNearest.Builder

newBuilderForType(GeneratedMessageV3.BuilderParent parent)

protected FindNearest.Builder newBuilderForType(GeneratedMessageV3.BuilderParent parent)
Parameter
Name Description
parent BuilderParent
Returns
Type Description
FindNearest.Builder
Overrides

newInstance(GeneratedMessageV3.UnusedPrivateParameter unused)

protected Object newInstance(GeneratedMessageV3.UnusedPrivateParameter unused)
Parameter
Name Description
unused UnusedPrivateParameter
Returns
Type Description
Object
Overrides

toBuilder()

public FindNearest.Builder toBuilder()
Returns
Type Description
FindNearest.Builder

writeTo(CodedOutputStream output)

public void writeTo(CodedOutputStream output)
Parameter
Name Description
output CodedOutputStream
Overrides
Exceptions
Type Description
IOException