org.mmbase.storage.util
Class ChangeManager

java.lang.Object
  org.mmbase.storage.util.ChangeManager

public final class ChangeManager

extends java.lang.Object

Version:

$Id: ChangeManager.java,v 1.2 2003/08/29 12:12:26 keesj Exp $

Author:

Pierre van Rooden

Constructor Summary

ChangeManager(MMBase mmbase)
Constructor.

Method Summary

void	commit(java.util.Map changes) Commit all changes stored in a Changes map.
void	commit(MMObjectNode node, java.lang.String change) Commits the change to a node.

Methods inherited from class java.lang.Object

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

Constructor Detail

ChangeManager

public ChangeManager(MMBase mmbase)

Constructor.

Parameters:

mmbase - the MMbase instance on which the changes are made

Method Detail

commit

public void commit(java.util.Map changes)

Commit all changes stored in a Changes map. Clears the change status of all changed nodes, then broadcasts changes to the nodes' builders.

Parameters:

changes - a map wityh node/change value pairs

commit

public void commit(MMObjectNode node,
                   java.lang.String change)

Commits the change to a node. Clears the change status of a node, then broadcasts changes to the node's parent builder. If the node is a relation, it also updates the relationcache and broadcasts these changes to the relation' s source and destination.

Parameters:

node - the node to commit the change of

change - the type of change: "n": new, "c": commit, "d": delete, "r" : relation changed