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36 lines
961 B
36 lines
961 B
package db
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// IdealBatchSize is the max size of batch transactions.
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// The value was determined empirically.
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const IdealBatchSize = 100 * 1024
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// Putter wraps the database write operation supported by both batches and regular databases.
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type Putter interface {
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Put(key []byte, value []byte) error
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}
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// Deleter wraps the database delete operation supported by both batches and regular databases.
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type Deleter interface {
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Delete(key []byte) error
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}
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// Database wraps all database operations. All methods are safe for concurrent use.
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type Database interface {
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Putter
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Deleter
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Get(key []byte) ([]byte, error)
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Has(key []byte) (bool, error)
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Close()
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NewBatch() Batch
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}
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// Batch is a write-only database that commits changes to its host database
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// when Write is called. Batch cannot be used concurrently.
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type Batch interface {
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Putter
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Deleter
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ValueSize() int // amount of data in the batch
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Write() error
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// Reset resets the batch for reuse
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Reset()
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}
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