Added in API level 36
Also in T Extensions 16

EmbeddingVector

---

Kotlin |Java

class EmbeddingVector : Parcelable

kotlin.Any
↳	android.app.appsearch.EmbeddingVector

Embeddings are vector representations of data, such as text, images, and audio, which can be generated by machine learning models and used for semantic search. This class represents an embedding vector, which wraps a float array for the values of the embedding vector and a model signature that can be any string to distinguish between embedding vectors generated by different models.

For more details on how embedding search works, check AppSearchSession.search and SearchSpec.Builder.setRankingStrategy(String).

Summary

Inherited constants

From class Parcelable Int CONTENTS_FILE_DESCRIPTOR Descriptor bit used with describeContents(): indicates that the Parcelable object's flattened representation includes a file descriptor. Int PARCELABLE_WRITE_RETURN_VALUE Flag for use with writeToParcel: the object being written is a return value, that is the result of a function such as "Parcelable someFunction()", "void someFunction(out Parcelable)", or "void someFunction(inout Parcelable)". Some implementations may want to release resources at this point.

Public constructors
EmbeddingVector(values: FloatArray, modelSignature: String) Creates a new EmbeddingVector.

Public methods
Boolean	equals(other: Any?) Indicates whether some other object is "equal to" this one.
String	getModelSignature() Returns the model signature of this embedding vector, which is an arbitrary string to distinguish between embedding vectors generated by different models.
FloatArray	getValues() Returns the values of this embedding vector.
Int	hashCode()
Unit	writeToParcel(dest: Parcel, flags: Int) Flatten this object in to a Parcel.

Properties
static Parcelable.Creator<EmbeddingVector!>	CREATOR

Public constructors

EmbeddingVector

Added in API level 36
Also in T Extensions 16

EmbeddingVector(
    values: FloatArray, 
    modelSignature: String)

Creates a new EmbeddingVector.

Parameters
values	FloatArray: This value cannot be null.
modelSignature	String: This value cannot be null.

Exceptions
java.lang.IllegalArgumentException	if values is empty.

Public methods

equals

Added in API level 36

fun equals(other: Any?): Boolean

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

• It is reflexive: for any non-null reference value x, x.equals(x) should return true.
• It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
• It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
• It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
• For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters
obj	the reference object with which to compare.
o	This value may be null.

Return
Boolean	true if this object is the same as the obj argument; false otherwise.

getModelSignature

Added in API level 36
Also in T Extensions 16

fun getModelSignature(): String

Returns the model signature of this embedding vector, which is an arbitrary string to distinguish between embedding vectors generated by different models.

Return
String	This value cannot be null.

getValues

Added in API level 36
Also in T Extensions 16

fun getValues(): FloatArray

Returns the values of this embedding vector.

Return
FloatArray	This value cannot be null.

hashCode

Added in API level 36

fun hashCode(): Int

Return
Int	a hash code value for this object.

writeToParcel

Added in API level 36

fun writeToParcel(
    dest: Parcel, 
    flags: Int
): Unit

Flatten this object in to a Parcel.

Parameters
dest	Parcel: This value cannot be null.
flags	Int: Additional flags about how the object should be written. May be 0 or PARCELABLE_WRITE_RETURN_VALUE. Value is either 0 or a combination of android.os.Parcelable#PARCELABLE_WRITE_RETURN_VALUE, and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES

Properties

CREATOR

Added in API level 36
Also in T Extensions 16

static val CREATOR: Parcelable.Creator<EmbeddingVector!>