Package org.apache.bookkeeper.bookie

Class IndexInMemPageMgr

java.lang.Object

org.apache.bookkeeper.bookie.IndexInMemPageMgr

class IndexInMemPageMgr
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
(package private) final int	entriesPerPage
(package private) final int	pageLimit
(package private) final org.apache.bookkeeper.bookie.IndexInMemPageMgr.InMemPageCollection	pageMapAndList
(package private) final int	pageSize

Constructor Summary

Constructors

Constructor	Description
IndexInMemPageMgr(int pageSize, int entriesPerPage, ServerConfiguration conf, IndexPersistenceMgr indexPersistenceManager, StatsLogger statsLogger)

Method Summary

Modifier and Type	Method	Description
(package private) void	flushOneOrMoreLedgers(boolean doAll)
(package private) long	getEntryOffset(long ledger, long entry)
(package private) long	getLastEntryInMem(long ledgerId)
(package private) LedgerEntryPage	getLedgerEntryPage(long ledger, long pageEntry)	Get the ledger entry page for a given pageEntry.
(package private) LedgerEntryPage	getLedgerEntryPageFromCache(long ledger, long firstEntry, boolean onlyDirty)
int	getPageSize()
LedgerCache.PageEntriesIterable	listEntries(long ledgerId)	Return iterator over pages for mapping entries to entry loggers.
(package private) void	putEntryOffset(long ledger, long entry, long offset)
(package private) void	removePagesForLedger(long ledgerId)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

pageSize

final int pageSize

entriesPerPage

final int entriesPerPage

pageLimit

final int pageLimit

pageMapAndList

final org.apache.bookkeeper.bookie.IndexInMemPageMgr.InMemPageCollection pageMapAndList

Constructor Details

IndexInMemPageMgr

public IndexInMemPageMgr(int pageSize,
 int entriesPerPage,
 ServerConfiguration conf,
 IndexPersistenceMgr indexPersistenceManager,
 StatsLogger statsLogger)

Method Details

getPageSize

public int getPageSize()

Returns:

page size used in ledger cache

getLedgerEntryPage

LedgerEntryPage getLedgerEntryPage(long ledger,
 long pageEntry)
                            throws IOException

Get the ledger entry page for a given pageEntry.

Parameters:

ledger - ledger id

pageEntry - first entry id of a given page

Returns:

ledger entry page

Throws:

IOException

getLedgerEntryPageFromCache

LedgerEntryPage getLedgerEntryPageFromCache(long ledger,
 long firstEntry,
 boolean onlyDirty)

removePagesForLedger

void removePagesForLedger(long ledgerId)

getLastEntryInMem

long getLastEntryInMem(long ledgerId)

flushOneOrMoreLedgers

void flushOneOrMoreLedgers(boolean doAll)
                    throws IOException

Throws:

IOException

putEntryOffset

void putEntryOffset(long ledger,
 long entry,
 long offset)
             throws IOException

Throws:

IOException

getEntryOffset

long getEntryOffset(long ledger,
 long entry)
             throws IOException

Throws:

IOException

listEntries

public LedgerCache.PageEntriesIterable listEntries(long ledgerId)
                                            throws IOException

Return iterator over pages for mapping entries to entry loggers.

Parameters:

ledgerId -

Returns:

Iterator over pages

Throws:

IOException