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Changed copy on write to occur during lookup, rather than after lookup.

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Much carnage, but it's way faster.


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/WCM-DEV2/root@3172 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Britt Park
2006-06-21 13:07:42 +00:00
parent 8cb3db78e3
commit 1318a5204b
14 changed files with 134 additions and 280 deletions
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41
source/java/org/alfresco/repo/avm/AVMNodeImpl.java
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@@ -148,47 +148,6 @@ abstract class AVMNodeImpl implements AVMNode, Serializable
return (AVMNode)query.uniqueResult();
}
/**
* Perform a copy on write on this node and recursively
* up to the repository root. This is a template method
* which farms out work to possiblyCopy().
* @param lPath The Lookup.
*/
public AVMNode copyOnWrite(Lookup lPath)
{
// Call the subclass's copy on write logic.
AVMNode newMe = possiblyCopy(lPath);
// No copying needed, so short circuit.
if (newMe == null)
{
return this;
}
String myName = lPath.getName();
lPath.upCurrentNode();
Repository repos = lPath.getRepository();
newMe.setVersionID(repos.getNextVersionID());
// Get our parent directory if we have one.
DirectoryNode parent = null;
if (!getIsRoot())
{
parent = (DirectoryNode)lPath.getCurrentNode();
}
if (parent != null)
{
// Recursive invocation.
DirectoryNode newParent =
(DirectoryNode)parent.copyOnWrite(lPath);
newParent.putChild(myName, newMe);
}
else // Null parent means root of repository.
{
repos.setNewRoot((DirectoryNode)newMe);
}
newMe.setRepository(repos);
newMe.setIsNew(true);
return newMe;
}
/**
* Set the owning repository for this.
* @param repo The owning repository.