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Showing content from https://mongodb.github.io/mongo-java-driver/5.5/apidocs/bson/org/bson/BinaryVector.html below:

BinaryVector (bson 5.5.0 API)

Direct Known Subclasses:

Float32BinaryVector, Int8BinaryVector, PackedBitBinaryVector

Binary Vectors are densely packed arrays of numbers, all the same type, which are stored and retrieved efficiently using the BSON Binary Subtype 9 format. This class supports multiple vector

's and provides static methods to create vectors.

NOTE: This class should be treated as sealed: it must not be extended or implemented by consumers of the library.

Since:

5.3

See Also:

• BsonBinary

Since server release

6.0

• Nested Class Summary

  Nested Classes

  static enum 

  Represents the data type (dtype) of a vector.

• Method Summary Methods inherited from class java.lang.Objectclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

• Method Details
  • packedBitVector

    Creates a vector with the

    BinaryVector.DataType.PACKED_BIT

    data type.

    A BinaryVector.DataType.PACKED_BIT vector is a binary quantized vector where each element of a vector is represented by a single bit (0 or 1). Each byte can hold up to 8 bits (vector elements). The padding parameter is used to specify how many least-significant bits in the final byte should be ignored.

    For example, a vector with two bytes and a padding of 4 would have the following structure:

     Byte 1: 238 (binary: 11101110)
     Byte 2: 224 (binary: 11100000)
     Padding: 4 (ignore the last 4 bits in Byte 2)
     Resulting vector: 12 bits: 111011101110
     

    NOTE: The byte array `data` is not copied; changes to the provided array will be reflected in the created PackedBitBinaryVector instance.

    Parameters:

    data - The byte array representing the packed bit vector data. Each byte can store 8 bits.

    padding - The number of least-significant bits (0 to 7) to ignore in the final byte of the vector data.

    Returns:

    A PackedBitBinaryVector instance with the BinaryVector.DataType.PACKED_BIT data type.

    Throws:

    IllegalArgumentException - If the padding value is greater than 7.

  • int8Vector

    Creates a vector with the

    BinaryVector.DataType.INT8

    data type.

    A BinaryVector.DataType.INT8 vector is a vector of 8-bit signed integers where each byte in the vector represents an element of a vector, with values in the range [-128, 127].

    NOTE: The byte array `data` is not copied; changes to the provided array will be reflected in the created Int8BinaryVector instance.

    Parameters:

    data - The byte array representing the BinaryVector.DataType.INT8 vector data.

    Returns:

    A Int8BinaryVector instance with the BinaryVector.DataType.INT8 data type.

  • floatVector

    Parameters:

    data - The float array representing the BinaryVector.DataType.FLOAT32 vector data.

    Returns:

    A Float32BinaryVector instance with the BinaryVector.DataType.FLOAT32 data type.

  • asPackedBitVector

    Returns:

    PackedBitBinaryVector.

    Throws:

    IllegalStateException - if this vector is not of type BinaryVector.DataType.PACKED_BIT. Use getDataType() to check the vector type before calling this method.

  • asInt8Vector

    Returns:

    Int8BinaryVector.

    Throws:

    IllegalStateException - if this vector is not of type BinaryVector.DataType.INT8. Use getDataType() to check the vector type before calling this method.

  • asFloat32Vector

    Returns:

    Float32BinaryVector.

    Throws:

    IllegalStateException - if this vector is not of type BinaryVector.DataType.FLOAT32. Use getDataType() to check the vector type before calling this method.

  • getDataType

    Returns:

    the data type of the vector.

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