org.iq80.leveldb

Interface WriteBatch

All Superinterfaces:

AutoCloseable, Closeable

public interface WriteBatch
extends Closeable

Author:

Hiram Chirino

Method Summary

Modifier and Type	Method and Description
WriteBatch	delete(byte[] key) If the database contains a mapping for "key", erase it.
int	getApproximateSize() The size of the database changes caused by this batch.
WriteBatch	put(byte[] key, byte[] value) Store the mapping key and value in the database.
int	size() Number of entries in the batch

Methods inherited from interface java.io.Closeable

close

Method Detail

getApproximateSize

int getApproximateSize()

The size of the database changes caused by this batch.

This number is tied to implementation details, and may change across releases. It is intended for LevelDB usage metrics.

size

int size()

Number of entries in the batch

put

WriteBatch put(byte[] key,
               byte[] value)

Store the mapping key and value in the database.

delete

WriteBatch delete(byte[] key)

If the database contains a mapping for "key", erase it. Else do nothing.