com.sleepycat.je.log
Class CheckpointMonitor

java.lang.Object
  com.sleepycat.je.log.CheckpointMonitor

 class CheckpointMonitor
extends java.lang.Object

The checkpoint monitor saves information about log writes to decide when a checkpoint is needed.

Constructor Summary

CheckpointMonitor(EnvironmentImpl envImpl)

Method Summary

(package private) void	activate() Wake up the checkpointer.
(package private) boolean	recordLogWrite(int entrySize, LoggableObject item) Update checkpoint driving information.

Methods inherited from class java.lang.Object

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

Constructor Detail

CheckpointMonitor

CheckpointMonitor(EnvironmentImpl envImpl)
            throws DatabaseException

Throws:

DatabaseException

Method Detail

recordLogWrite

boolean recordLogWrite(int entrySize,
                       LoggableObject item)

Update checkpoint driving information. Call from within the log write latch.

Returns:

true if a checkpoint is needed.

activate

void activate()

Wake up the checkpointer. Note that the check on bytesWritten is actually within a latched period.