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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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42
source/java/org/alfresco/repo/avm/hibernate/AVM.hbm.xml
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@@ -24,14 +24,6 @@
<version column="vers"
name="vers"
type="long"/>
<!-- BasicAttributes are attributes that pretty much all AVMNodes will
have. -->
<many-to-one name="ancestor" column="ancestor_id"
class="AVMNodeImpl"/>
<!-- Nothing does anything with this yet. We'll need it for
complete versioning semantics. -->
<many-to-one name="mergedFrom" column="merged_from"
class="AVMNodeImpl"/>
<!-- This should really be not null, but I haven't figured out
the right way to build the relation so that nullability constraints
won't cause violations in the db during saves. -->
@@ -174,6 +166,18 @@
column="parent_id"/>
</composite-id>
</class>
<class name="HistoryLinkImpl" proxy="HistoryLink" table="history_links">
<composite-id>
<key-many-to-one name="ancestor" class="AVMNodeImpl" column="ancestor"/>
<key-many-to-one name="descendent" class="AVMNodeImpl" column="descendent"/>
</composite-id>
</class>
<class name="MergeLinkImpl" proxy="MergeLink" table="merge_links">
<composite-id>
<key-many-to-one name="mfrom" class="AVMNodeImpl" column="mfrom"/>
<key-many-to-one name="mto" class="AVMNodeImpl" column="mto"/>
</composite-id>
</class>
<query name="ChildEntry.ByNameParent">
<![CDATA[
from ChildEntryImpl ce
@@ -210,14 +214,28 @@
</query>
<query name="AVMNode.GetDescendents">
<![CDATA[
from AVMNodeImpl an
where an.ancestor = :node
select hl.descendent
from HistoryLinkImpl hl
where hl.ancestor = :node
]]>
</query>
<query name="HistoryLink.ByAncestor">
<![CDATA[
from HistoryLinkImpl hl
where hl.ancestor = :node
]]>
</query>
<query name="AVMNode.GetMergedTo">
<![CDATA[
from AVMNodeImpl an
where an.mergedFrom = :merged
select ml.mto
from MergeLinkImpl ml
where ml.mfrom = :merged
]]>
</query>
<query name="MergeLink.ByFrom">
<![CDATA[
from MergeLinkImpl ml
where ml.mfrom = :merged
]]>
</query>
<query name="VersionRoot.GetVersionRoot">