Package org.apache.bookkeeper.meta

Interface LedgerIdGenerator

All Superinterfaces:

AutoCloseable, Closeable

All Known Implementing Classes:

LongZkLedgerIdGenerator, NullMetadataBookieDriver.NullLedgerIdGenerator, ZkLedgerIdGenerator

public interface LedgerIdGenerator
extends Closeable

The interface for global unique ledger ID generation.

Method Summary

Modifier and Type	Method	Description
void	generateLedgerId(BookkeeperInternalCallbacks.GenericCallback<Long> cb)	Generate a global unique ledger id.

Methods inherited from interface java.io.Closeable

close

Method Details

generateLedgerId

void generateLedgerId(BookkeeperInternalCallbacks.GenericCallback<Long> cb)

Generate a global unique ledger id.

Parameters:

cb - Callback when a new ledger id is generated, return code:

• BKException.Code.OK if success
• BKException.Code.ZKException when can't generate new ledger id