org.jboss.messaging.core.journal.impl
Class Reclaimer

java.lang.Object
  org.jboss.messaging.core.journal.impl.Reclaimer

public class Reclaimer
extends java.lang.Object

A ReclaimerTest The journal consists of an ordered list of journal files Fn where 0 <= n <= N A journal file can contain either positives (pos) or negatives (neg) (Positives correspond either to adds or updates, and negatives correspond to deletes). A file Fn can be deleted if, and only if the following criteria are satisified 1) All pos in a file Fn, must have corresponding neg in any file Fm where m >= n. 2) All pos that correspond to any neg in file Fn, must all live in any file Fm where 0 <= m <= n which are also marked for deletion in the same pass of the algorithm.

Author:

Tim Fox

Constructor Summary

Reclaimer()

Method Summary

void	scan(JournalFile[] files)

Methods inherited from class java.lang.Object

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

Constructor Detail

Reclaimer

public Reclaimer()

Method Detail

scan

public void scan(JournalFile[] files)