batch

package
v1.2.160 Latest Latest
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 Go to latest Published: Jun 11, 2019 License: AGPL-3.0 Imports: 7 Imported by: 1

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Functions

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Types

type Committer 

type Committer interface {
	Start()
	Queue(Value)
	Stop()
}

Committer commits items in a background thread

func NewCommitter 

func NewCommitter(label string, db *sqlx.DB, sql string, timeout time.Duration, wg *sync.WaitGroup, callback ErrorCallback) Committer

NewCommitter creates a new committer that will commit items in batches as quickly as possible.

type ErrorCallback 

type ErrorCallback func(err error, value Value)

ErrorCallback lets callers get a callback when a value fails to be committed

type Value 

type Value interface {
	RowID() string
}

Value represents the interface values must satisfy. The RowID() method should return the unique row ID (if any) for the item. This will be used to make sure that no update is made on the same value in the same statement. (which would fail for bulk updates) Items which are being inserted may return an empty string for RowID()

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