Package org.apache.bookkeeper.meta

Interface LayoutManager

All Known Implementing Classes:

NullMetadataBookieDriver.NullLayoutManager, ZkLayoutManager

public interface LayoutManager

Layout manager for writing/reading/deleting ledger layout.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	LayoutManager.LedgerLayoutExistsException	The Ledger layout exists exception.

Method Summary

Modifier and Type	Method	Description
void	deleteLedgerLayout()	Delete ledger layout.
LedgerLayout	readLedgerLayout()	Return the ledger layout.
void	storeLedgerLayout(LedgerLayout layout)	Store the ledger layout.

Method Details

readLedgerLayout

LedgerLayout readLedgerLayout()
                       throws IOException

Return the ledger layout.

Returns:

the ledger layout

Throws:

IOException - when fail to read ledger layout.

storeLedgerLayout

void storeLedgerLayout(LedgerLayout layout)
                throws IOException

Store the ledger layout.

Parameters:

layout - ledger layout

Throws:

IOException - when fail to store ledger layout.

deleteLedgerLayout

void deleteLedgerLayout()
                 throws IOException

Delete ledger layout.

Throws:

IOException