com.sleepycat.je.log
Class CheckpointFileReader
java.lang.Object
com.sleepycat.je.log.FileReader
com.sleepycat.je.log.CheckpointFileReader
public class CheckpointFileReader
- extends FileReader
CheckpointFileReader searches for root and checkpoint entries.
Fields inherited from class com.sleepycat.je.log.FileReader |
anticipateChecksumErrors, cksumValidator, currentEntryChecksum, currentEntryOffset, currentEntryPrevOffset, currentEntrySize, currentEntryTypeNum, currentEntryTypeVersion, env, eof, fileManager, nextEntryOffset, readBufferFileEnd, readBufferFileNum, readBufferFileStart, startLsn |
Constructor Summary |
CheckpointFileReader(EnvironmentImpl env,
int readBufferSize,
boolean forward,
long startLsn,
long finishLsn,
long endOfFileLsn)
Create this reader to start at a given LSN. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
CheckpointFileReader
public CheckpointFileReader(EnvironmentImpl env,
int readBufferSize,
boolean forward,
long startLsn,
long finishLsn,
long endOfFileLsn)
throws IOException,
DatabaseException
- Create this reader to start at a given LSN.
- Throws:
IOException
DatabaseException
isTargetEntry
protected boolean isTargetEntry(byte logEntryTypeNumber,
byte logEntryTypeVersion)
- Overrides:
isTargetEntry
in class FileReader
- Returns:
- true if this is a targetted entry.
processEntry
protected boolean processEntry(ByteBuffer entryBuffer)
throws DatabaseException
- This reader instantiate the first object of a given log entry
- Specified by:
processEntry
in class FileReader
- Returns:
- true if this entry should be returned
- Throws:
DatabaseException
isRoot
public boolean isRoot()
- Returns:
- true if last entry was a root entry.
isCheckpointEnd
public boolean isCheckpointEnd()
- Returns:
- true if last entry was a checkpoint end entry.
isCheckpointStart
public boolean isCheckpointStart()
- Returns:
- true if last entry was a checkpoint start entry.
Copyright 2004-2005 Sleepycat, Inc. All Rights Reserved.