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Factored the ancestor-descendent and merged from-to relationships

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out of AVMNode.  Easier to get hibernate to do what I want and appears
to be a little more efficient as it removes several FK constraints
from a frequently updated table.


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/WCM-DEV2/root@3137 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Britt Park
2006-06-18 21:35:17 +00:00
parent 606096011c
commit d3f6048fbc
8 changed files with 338 additions and 40 deletions
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43
source/java/org/alfresco/repo/avm/AVMNodeImpl.java
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@@ -19,6 +19,9 @@ package org.alfresco.repo.avm;
import java.io.Serializable;
import org.hibernate.Query;
import org.hibernate.Session;
/**
* Base class for all repository file system like objects.
* @author britt
@@ -35,16 +38,6 @@ abstract class AVMNodeImpl implements AVMNode, Serializable
*/
private int fVersionID;
/**
* The ancestor of this.
*/
private AVMNode fAncestor;
/**
* The node that was merged into this.
*/
private AVMNode fMergedFrom;
/**
* The Repository that owns this.
*/
@@ -87,8 +80,6 @@ abstract class AVMNodeImpl implements AVMNode, Serializable
{
fID = id;
fVersionID = -1;
fAncestor = null;
fMergedFrom = null;
fRepository = repo;
fIsRoot = false;
long time = System.currentTimeMillis();
@@ -107,7 +98,14 @@ abstract class AVMNodeImpl implements AVMNode, Serializable
*/
public void setAncestor(AVMNode ancestor)
{
fAncestor = ancestor;
if (ancestor == null)
{
return;
}
HistoryLinkImpl link = new HistoryLinkImpl();
link.setAncestor(ancestor);
link.setDescendent(this);
SuperRepository.GetInstance().getSession().save(link);
}
/**
@@ -116,7 +114,10 @@ abstract class AVMNodeImpl implements AVMNode, Serializable
*/
public AVMNode getAncestor()
{
return fAncestor;
Session sess = SuperRepository.GetInstance().getSession();
Query query = sess.createQuery("select hl.ancestor from HistoryLinkImpl hl where hl.descendent = :desc");
query.setEntity("desc", this);
return (AVMNode)query.uniqueResult();
}
/**
@@ -125,7 +126,14 @@ abstract class AVMNodeImpl implements AVMNode, Serializable
*/
public void setMergedFrom(AVMNode mergedFrom)
{
fMergedFrom = mergedFrom;
if (mergedFrom == null)
{
return;
}
MergeLinkImpl link = new MergeLinkImpl();
link.setMfrom(mergedFrom);
link.setMto(this);
SuperRepository.GetInstance().getSession().save(link);
}
/**
@@ -134,7 +142,10 @@ abstract class AVMNodeImpl implements AVMNode, Serializable
*/
public AVMNode getMergedFrom()
{
return fMergedFrom;
Session sess = SuperRepository.GetInstance().getSession();
Query query = sess.createQuery("select ml.mfrom from MergeLinkImpl ml where ml.mto = :to");
query.setEntity("to", this);
return (AVMNode)query.uniqueResult();
}
/**