org.apache.jackrabbit.mongomk

Class Revision.RevisionComparator

java.lang.Object

org.apache.jackrabbit.mongomk.Revision.RevisionComparator

All Implemented Interfaces:

Comparator<Revision>

Enclosing class:

Revision

public static class Revision.RevisionComparator
extends Object
implements Comparator<Revision>

A facility that is able to compare revisions of different cluster instances. It contains a map of revision ranges.

Method Summary

Methods

Modifier and Type	Method and Description
void	add(Revision r, Revision seenAt) Add the revision to the top of the queue for the given cluster node.
int	compare(Revision o1, Revision o2)
void	purge(long timestamp) Forget the order of older revisions.
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

equals

Method Detail

purge

public void purge(long timestamp)

Forget the order of older revisions. After calling this method, when comparing revisions that happened before the given value, the timestamp order is used (time dilation is ignored for older events).

Parameters:

timestamp - the time in milliseconds (see Revision.getCurrentTimestamp())

add

public void add(Revision r,
       Revision seenAt)

Add the revision to the top of the queue for the given cluster node. If an entry for this timestamp already exists, it is replaced.

Parameters:

r - the revision

seenAt - the (local) revision where this revision was seen here

compare

public int compare(Revision o1,
          Revision o2)

Specified by:

compare in interface Comparator<Revision>

toString

public String toString()

Overrides:

toString in class Object