partition

Documentation

Index

• type Range
  • func NewFullRange(numPartitions int) (*Range, error)
  • func NewRange(start, end uuid.UUID, numPartitions int) (*Range, error)
  • func (r *Range) Extents() (uuid.UUID, uuid.UUID)
  • func (r *Range) PartitionExtents(partition int) (uuid.UUID, uuid.UUID, error)
  • func (r *Range) PartitionForID(id uuid.UUID) (int, error)

Types

type Range

type Range struct {
	// contains filtered or unexported fields
}

Range represents a contiguous UUID region which is split into a number of partitions.

func NewFullRange

func NewFullRange(numPartitions int) (*Range, error)

NewFullRange creates a new range that uses the full UUID value space and splits it into the provided number of partitions.

func NewRange

func NewRange(start, end uuid.UUID, numPartitions int) (*Range, error)

NewRange creates a new range [start, end) and splits it into the provided number of partitions.

func (*Range) Extents

func (r *Range) Extents() (uuid.UUID, uuid.UUID)

Extents returns the [start, end) extents of the entire range.

func (*Range) PartitionExtents

func (r *Range) PartitionExtents(partition int) (uuid.UUID, uuid.UUID, error)

PartitionExtents returns the [start, end) range for the requested partition.

func (*Range) PartitionForID

func (r *Range) PartitionForID(id uuid.UUID) (int, error)

PartitionForID returns the partition index that the provided ID belongs to.