org.neo4j.kernel.impl.transaction.xaframework
Class LogExtractor

java.lang.Object
  org.neo4j.kernel.impl.transaction.xaframework.LogExtractor

public class LogExtractor
extends Object

Nested Class Summary

static interface	LogExtractor.LogLoader
static class	LogExtractor.LogPositionCache
static class	LogExtractor.TxPosition

Constructor Summary

LogExtractor(LogExtractor.LogPositionCache cache, LogExtractor.LogLoader logLoader, XaCommandFactory commandFactory, long startTxId, long endTxIdHint)

Method Summary

void	close()
long	extractNext(LogBuffer target)
protected void	finalize()
static LogExtractor	from(String storeDir)
static LogExtractor	from(String storeDir, long startTxId)
LogEntry.Commit	getLastCommitEntry()
LogEntry.Start	getLastStartEntry()
long	getLastTxChecksum()

Methods inherited from class java.lang.Object

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

Constructor Detail

LogExtractor

public LogExtractor(LogExtractor.LogPositionCache cache,
                    LogExtractor.LogLoader logLoader,
                    XaCommandFactory commandFactory,
                    long startTxId,
                    long endTxIdHint)
             throws IOException

Throws:

IOException

Method Detail

extractNext

public long extractNext(LogBuffer target)
                 throws IOException

Returns:

the txId for the extracted tx. Or -1 if end-of-stream was reached.

Throws:

RuntimeException - if there was something unexpected with the stream.

IOException

close

public void close()

finalize

protected void finalize()
                 throws Throwable

Overrides:

finalize in class Object

Throws:

Throwable

getLastCommitEntry

public LogEntry.Commit getLastCommitEntry()

getLastTxChecksum

public long getLastTxChecksum()

getLastStartEntry

public LogEntry.Start getLastStartEntry()

from

public static LogExtractor from(String storeDir)
                         throws IOException

Throws:

IOException

from

public static LogExtractor from(String storeDir,
                                long startTxId)
                         throws IOException

Throws:

IOException