spannerutil

Documentation

Index

• Variables
• func CollectRow[T any](iter *spanner.RowIterator, scan func(row *spanner.Row, item *T) error) (r T, _ error)
• func CollectRows[T any](iter *spanner.RowIterator, scan func(row *spanner.Row, item *T) error) (rs []T, _ error)
• type IntValueDecoder
  • func Int[T inty](val *T) IntValueDecoder[T]
  • func (s IntValueDecoder[T]) DecodeSpanner(input any) error

Variables

var Error = errs.Class("spannerutil")

Error is error class for this package.

Functions

func CollectRow

func CollectRow[T any](iter *spanner.RowIterator, scan func(row *spanner.Row, item *T) error) (r T, _ error)

CollectRow scans a single row into a slice.

func CollectRows

func CollectRows[T any](iter *spanner.RowIterator, scan func(row *spanner.Row, item *T) error) (rs []T, _ error)

CollectRows scans each row into a slice.

Types

type IntValueDecoder

type IntValueDecoder[T inty] struct {
	// contains filtered or unexported fields
}

IntValueDecoder is a type wrapping an int pointer so it can decode integer values from Spanner directly (Spanner prefers to work only in int64s).

func Int

func Int[T inty](val *T) IntValueDecoder[T]

Int wraps a pointer to an int-based type in a type that can be decoded directly from Spanner.

In general, it is preferable to add EncodeSpanner/DecodeSpanner methods to our specialized int types, but this can be used for types we don't own or otherwise can't put methods on.

func (IntValueDecoder[T]) DecodeSpanner

func (s IntValueDecoder[T]) DecodeSpanner(input any) error

DecodeSpanner decodes a value from a Spanner-stored type to the appropriate int type. It implements spanner.Decoder.