mirror of
https://github.com/Alfresco/alfresco-community-repo.git
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619f31b1bd
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/WCM-DEV2/root@3236 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
289 lines
10 KiB
XML
289 lines
10 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >
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<hibernate-mapping package="org.alfresco.repo.avm">
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<!-- AVMNodeBean is the abstract base for filesystem like objects.
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We're using the one table per class hierarchy strategy to implement
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polymorphism. -->
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<class table="avm_nodes" abstract="true"
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name="AVMNodeImpl"
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proxy="AVMNode"
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optimistic-lock="version"
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lazy="true">
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<cache usage="read-write"/>
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<!-- The id is set programmatically using an Issuer. See below. -->
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<id name="id"
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column="id"
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type="long"/>
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<!-- I suppose this would be more efficient to encode type by an int.
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We'll see if using a string makes a difference. -->
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<discriminator column="class_type"
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type="string"
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length="20"/>
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<!-- We're using hibernate's own versioning scheme for concurrency control.
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I don't know how well that will play with a full Spring-JTA stack. -->
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<version column="vers"
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name="vers"
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type="long"/>
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<!-- This should really be not null, but I haven't figured out
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the right way to build the relation so that nullability constraints
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won't cause violations in the db during saves. -->
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<many-to-one name="repository" column="repository"
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class="RepositoryImpl"/>
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<property name="versionID" type="int" column="version_id"
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not-null="true"/>
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<property name="isNew" column="is_new" type="boolean"
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not-null="true"/>
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<component name="basicAttributes" class="BasicAttributesImpl">
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<property name="creator" type="string" not-null="true"/>
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<property name="owner" type="string" not-null="true"/>
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<property name="lastModifier" type="string" not-null="true"/>
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<property name="createDate" type="long" not-null="true"/>
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<property name="modDate" type="long" not-null="true"/>
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<property name="accessDate" type="long" not-null="true"/>
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</component>
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<property name="isRoot" column="is_root" type="boolean"/>
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<!-- Directories, two flavors. -->
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<subclass name="DirectoryNodeImpl"
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proxy="DirectoryNode"
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abstract="true"
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lazy="true">
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<!-- A Layered Directory is our smart symlink thingy. -->
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<subclass name="LayeredDirectoryNodeImpl"
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proxy="LayeredDirectoryNode"
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discriminator-value="layereddirectory" lazy="true">
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<!-- The layer id is an implementation trick to disambiguate
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exactly what layer is being refered to in various circumstances. -->
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<property name="layerID" column="layer_id" type="long"/>
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<!-- The is the moral equivalent of the value of a symlink. -->
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<property name="indirection" column="indirection"
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type="string" length="511" />
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<!-- This marks a layered directory as either knowing itself what
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it points at (true) or inheriting what it points at from its
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container (false). -->
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<property name="primaryIndirection"
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column="primary_indirection" type="boolean"/>
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<!-- Map of names to DirectoryEntries. -->
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</subclass>
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<!-- Just plain directories. -->
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<subclass name="PlainDirectoryNodeImpl"
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discriminator-value="plaindirectory" proxy="PlainDirectoryNode" lazy="true">
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<!-- For reference count based garbage collection of purged nodes
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to work we need to specially mark the root directory of
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a Repository as special so that its absence of parents will
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not cause it to be vacuumed away. TODO: for ease of queries,
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this probably wants to be in the base class. -->
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<!-- A map of names to DirectoryEntries. In the AVM world, it makes sense
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that nodes don't know there own names, only their containers do. -->
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</subclass>
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</subclass>
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<!-- There are two kinds of files, plain and symlinky. -->
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<subclass name="FileNodeImpl"
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proxy="FileNode"
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abstract="true"
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lazy="false">
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<!-- Plain files just have a reference to a Content object. -->
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<subclass discriminator-value="plainfile"
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name="PlainFileNodeImpl" proxy="PlainFileNode" lazy="true">
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<many-to-one name="content" column="content_id"
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class="FileContentImpl" fetch="join" cascade="save-update">
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</many-to-one>
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</subclass>
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<!-- Layered files are almost exactly copy on write symlinks. -->
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<subclass name="LayeredFileNodeImpl"
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discriminator-value="layeredfile" proxy="LayeredFileNode" lazy="true">
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<property name="indirection" type="string" length="511"
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column="indirection" />
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</subclass>
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</subclass>
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</class>
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<!-- Contents are objects to hang actual bytestreams off. They are explicitly reference
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counted. -->
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<class table="contents" name="FileContentImpl" proxy="FileContent"
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optimistic-lock="version">
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<cache usage="read-write" />
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<id name="id" column="id" type="long"/>
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<version name="vers" column="vers" type="long"/>
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<!-- The reference count. Contents are explicitly reference counted for now,
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however it make sense to fold this into a generalized garbage collection
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scheme. -->
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<property name="refCount" column="ref_count" type="int"
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not-null="true"/>
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</class>
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<!-- A Repository is the what we used to call a virtual repository.
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Each Repository has it's own branch ids and layer ids but shares node ids
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with other repositories. The physical repository is structured this way
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for better scaling. -->
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<class table="repositories" name="RepositoryImpl"
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proxy="Repository" optimistic-lock="version">
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<cache usage="read-write"/>
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<id name="name" column="name" type="string"/>
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<version name="vers" column="vers" type="long"/>
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<property type="int" name="nextVersionID"
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column="next_version_id" not-null="true"/>
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<property type="string" name="creator" column="creator" not-null="true"/>
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<property type="long" name="createDate" column="create_date" not-null="true"/>
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<!-- Every Repository has a root directory that is the current root directory. -->
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<!-- This should be not-null but hibernate (or my own idiocy) makes that difficult. -->
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<many-to-one name="root" class="DirectoryNodeImpl"
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column="current_root_id" unique="true" cascade="save-update">
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</many-to-one>
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</class>
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<class name="VersionRootImpl" proxy="VersionRoot" table="version_roots">
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<!-- <cache usage="read-write"/> -->
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<id column="id" type="long">
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<generator class="native"></generator>
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</id>
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<property name="versionID" type="int" not-null="true"
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column="version_id" index="version_roots_version_id_index">
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</property>
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<property name="createDate" type="long" not-null="true" column="create_date">
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</property>
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<property name="creator" type="string" column="creator"
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not-null="true">
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</property>
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<many-to-one name="repository" column="repository_id"
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class="RepositoryImpl" not-null="true">
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</many-to-one>
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<many-to-one name="root" class="DirectoryNodeImpl"
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column="root_id" not-null="true">
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</many-to-one>
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</class>
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<class name="ChildEntryImpl" proxy="ChildEntry" table="child_entries" optimistic-lock="version">
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<cache usage="read-write"/>
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<composite-id>
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<key-property name="name" type="string" column="name">
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</key-property>
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<key-many-to-one name="parent" column="parent_id" class="DirectoryNodeImpl">
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</key-many-to-one>
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</composite-id>
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<version name="vers" column="vers" type="long"/>
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<many-to-one name="child" column="child_id" class="AVMNodeImpl"
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not-null="true">
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</many-to-one>
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</class>
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<class table="deleted_children" name="DeletedChildImpl" proxy="DeletedChild">
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<cache usage="read-write"/>
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<composite-id>
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<key-property name="name" column="name" type="string"/>
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<key-many-to-one name="parent" class="LayeredDirectoryNodeImpl"
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column="parent_id"/>
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</composite-id>
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</class>
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<class name="HistoryLinkImpl" proxy="HistoryLink" table="history_links">
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<composite-id>
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<key-many-to-one name="ancestor" class="AVMNodeImpl" column="ancestor"/>
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<key-many-to-one name="descendent" class="AVMNodeImpl" column="descendent"/>
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</composite-id>
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</class>
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<class name="MergeLinkImpl" proxy="MergeLink" table="merge_links">
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<composite-id>
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<key-many-to-one name="mfrom" class="AVMNodeImpl" column="mfrom"/>
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<key-many-to-one name="mto" class="AVMNodeImpl" column="mto"/>
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</composite-id>
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</class>
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<query name="ChildEntry.ByNameParent">
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<![CDATA[
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from ChildEntryImpl ce
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where
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ce.name = :name and ce.parent = :parent
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]]>
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</query>
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<query name="ChildEntry.ByParent">
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<![CDATA[
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from ChildEntryImpl ce
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where
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ce.parent = :parent
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]]>
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</query>
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<query name="ChildEntry.ByParentChild">
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<![CDATA[
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from ChildEntryImpl ce
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where
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ce.child = :child and ce.parent = :parent
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]]>
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</query>
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<query name="ChildEntry.DeleteByParent">
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<![CDATA[
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delete ChildEntryImpl ce
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where ce.parent = :parent
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]]>
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</query>
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<query name="AVMNode.ByNewInRepo">
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<![CDATA[
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from AVMNodeImpl a
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where
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a.repository = :repo and a.isNew = true
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]]>
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</query>
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<query name="AVMNode.GetDescendents">
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<![CDATA[
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select hl.descendent
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from HistoryLinkImpl hl
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where hl.ancestor = :node
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]]>
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</query>
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<query name="HistoryLink.ByAncestor">
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<![CDATA[
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from HistoryLinkImpl hl
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where hl.ancestor = :node
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]]>
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</query>
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<query name="AVMNode.GetMergedTo">
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<![CDATA[
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select ml.mto
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from MergeLinkImpl ml
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where ml.mfrom = :merged
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]]>
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</query>
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<query name="MergeLink.ByFrom">
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<![CDATA[
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from MergeLinkImpl ml
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where ml.mfrom = :merged
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]]>
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</query>
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<query name="VersionRoot.GetVersionRoot">
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<![CDATA[
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select v.root
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from VersionRootImpl v
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where
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v.repository = :rep and v.versionID = :version
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]]>
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</query>
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<query name="VersionRoot.VersionByID">
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<![CDATA[
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from VersionRootImpl v
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where
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v.repository = :rep and v.versionID = :version
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]]>
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</query>
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<query name="DeletedChild.ByNameParent">
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<![CDATA[
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from DeletedChildImpl dc
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where
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dc.parent = :parent and dc.name = :name
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]]>
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</query>
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<query name="DeletedChild.ByParent">
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<![CDATA[
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from DeletedChildImpl dc
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where
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dc.parent = :parent
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]]>
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</query>
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<query name="DeletedChild.DeleteByParent">
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<![CDATA[
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delete DeletedChildImpl dc
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where dc.parent = :parent
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]]>
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</query>
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<query name="FindOrphans">
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<![CDATA[
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from AVMNodeImpl an
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where
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an not in ( select ce.child
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from ChildEntryImpl ce )
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and an.isRoot = false
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]]>
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</query>
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</hibernate-mapping>
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