程序包 org.apache.bookkeeper.mledger.impl

类 ReadOnlyCursorImpl

java.lang.Object

org.apache.bookkeeper.mledger.impl.ManagedCursorImpl

org.apache.bookkeeper.mledger.impl.ReadOnlyCursorImpl

所有已实现的接口:

ManagedCursor, ReadOnlyCursor

public class ReadOnlyCursorImpl
extends ManagedCursorImpl
implements ReadOnlyCursor

嵌套类概要

从类继承的嵌套类/接口 org.apache.bookkeeper.mledger.impl.ManagedCursorImpl

ManagedCursorImpl.State, ManagedCursorImpl.VoidCallback

从接口继承的嵌套类/接口 org.apache.bookkeeper.mledger.ManagedCursor

ManagedCursor.FindPositionConstraint, ManagedCursor.IndividualDeletedEntries

字段概要

从类继承的字段 org.apache.bookkeeper.mledger.impl.ManagedCursorImpl

bookkeeper, config, FALSE, INPROGRESS_MARKDELETE_PERSIST_POSITION_UPDATER, inProgressMarkDeletePersistPosition, LAST_MARK_DELETE_ENTRY_UPDATER, lastMarkDeleteEntry, ledger, markDeletePosition, mbean, messagesConsumedCounter, pendingMarkDeleteOps, persistentMarkDeletePosition, READ_POSITION_UPDATER, readPosition, state, STATE_UPDATER, statsLastReadPosition, TRUE, WAITING_READ_OP_UPDATER

构造器概要

构造器

构造器	说明
ReadOnlyCursorImpl(org.apache.bookkeeper.client.BookKeeper bookkeeper, ManagedLedgerConfig config, ManagedLedgerImpl ledger, PositionImpl startPosition, String cursorName)

方法概要

修饰符和类型	方法	说明
void	asyncClose(AsyncCallbacks.CloseCallback callback, Object ctx)	Close the cursor asynchronously and release the associated resources.
MLDataFormats.ManagedLedgerInfo.LedgerInfo	getCurrentLedgerInfo()
long	getNumberOfEntries(com.google.common.collect.Range<PositionImpl> range)	Return the number of messages that this cursor still has to read.
void	skipEntries(int numEntriesToSkip)	Skip n entries from the read position of this cursor.

从类继承的方法 org.apache.bookkeeper.mledger.impl.ManagedCursorImpl

asyncClearBacklog, asyncDelete, asyncDelete, asyncFindNewestMatching, asyncGetNthEntry, asyncMarkDelete, asyncMarkDelete, asyncReadEntries, asyncReadEntries, asyncReadEntriesOrWait, asyncReadEntriesOrWait, asyncReplayEntries, asyncReplayEntries, asyncResetCursor, asyncSkipEntries, cancelPendingReadRequest, checkAndUpdateReadPositionChanged, clearBacklog, close, delete, delete, findNewestMatching, findNewestMatching, getBatchPositionAckSet, getCursorLedger, getCursorLedgerLastEntry, getCursorProperties, getDeletedBatchIndexesAsLongArray, getEstimatedSizeSinceMarkDeletePosition, getFirstPosition, getIndividuallyDeletedMessages, getIndividuallyDeletedMessagesSet, getLastActive, getLastIndividualDeletedRange, getLastLedgerSwitchTimestamp, getManagedLedger, getMarkDeletedPosition, getMessagesConsumedCounter, getName, getNextAvailablePosition, getNextLedgerPosition, getNonContiguousDeletedMessagesRangeSerializedSize, getNthEntry, getNumberOfEntries, getNumberOfEntriesInBacklog, getNumberOfEntriesInStorage, getNumberOfEntriesSinceFirstNotAckedMessage, getPendingReadOpsCount, getPersistentMarkDeletedPosition, getProperties, getReadPosition, getState, getStats, getThrottleMarkDelete, getTotalNonContiguousDeletedMessagesRange, hasMoreEntries, hasPendingReadRequest, internalAsyncMarkDelete, internalResetCursor, isActive, isBkErrorNotRecoverable, isClosed, isDurable, isIndividuallyDeletedEntriesEmpty, isMessageDeleted, markDelete, markDelete, putProperty, readEntries, readEntriesOrWait, readEntriesOrWait, recoverFromLedger, removeProperty, replayEntries, resetCursor, rewind, seek, setActive, setAlwaysInactive, setCursorProperties, setInactive, setState, setThrottleMarkDelete, skipEntries, toString, trimDeletedEntries, updateLastActive

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.bookkeeper.mledger.ManagedCursor

seek

从接口继承的方法 org.apache.bookkeeper.mledger.ReadOnlyCursor

asyncReadEntries, asyncReadEntries, close, findNewestMatching, getNumberOfEntries, getReadPosition, hasMoreEntries, readEntries

构造器详细资料

ReadOnlyCursorImpl

public ReadOnlyCursorImpl(org.apache.bookkeeper.client.BookKeeper bookkeeper,
 ManagedLedgerConfig config,
 ManagedLedgerImpl ledger,
 PositionImpl startPosition,
 String cursorName)

方法详细资料

skipEntries

public void skipEntries(int numEntriesToSkip)

从接口复制的说明: ReadOnlyCursor

Skip n entries from the read position of this cursor.

指定者:

skipEntries 在接口中 ReadOnlyCursor

参数:

numEntriesToSkip - number of entries to skip

asyncClose

public void asyncClose(AsyncCallbacks.CloseCallback callback,
 Object ctx)

从接口复制的说明: ManagedCursor

Close the cursor asynchronously and release the associated resources.

指定者:

asyncClose 在接口中 ManagedCursor

指定者:

asyncClose 在接口中 ReadOnlyCursor

覆盖:

asyncClose 在类中 ManagedCursorImpl

参数:

callback - callback object

ctx - opaque context

getCurrentLedgerInfo

public MLDataFormats.ManagedLedgerInfo.LedgerInfo getCurrentLedgerInfo()

getNumberOfEntries

public long getNumberOfEntries(com.google.common.collect.Range<PositionImpl> range)

从接口复制的说明: ReadOnlyCursor

Return the number of messages that this cursor still has to read.

This method has linear time complexity on the number of ledgers included in the managed ledger.

指定者:

getNumberOfEntries 在接口中 ReadOnlyCursor

覆盖:

getNumberOfEntries 在类中 ManagedCursorImpl

参数:

range - the range between two positions

返回:

the number of entries in range