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java.lang.Objectorg.apache.jackrabbit.core.version.VersionManagerImpl
public class VersionManagerImpl
This Class implements a VersionManager.
Nested Class Summary | |
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static class |
VersionManagerImpl.DynamicESCFactory
|
Field Summary | |
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protected NodeStateEx |
historyRoot
Persistent root node of the version histories. |
protected NodeTypeRegistry |
ntReg
Node type registry. |
protected LocalItemStateManager |
stateMgr
State manager for the version storage. |
Constructor Summary | |
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VersionManagerImpl(PersistenceManager pMgr,
FileSystem fs,
NodeTypeRegistry ntReg,
DelegatingObservationDispatcher obsMgr,
NodeId rootId,
NodeId rootParentId,
ItemStateCacheFactory cacheFactory,
ISMLocking ismLocking)
Creates a new version manager |
Method Summary | |
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protected ISMLocking.ReadLock |
acquireReadLock()
acquires the read lock on this version manager. |
protected ISMLocking.WriteLock |
acquireWriteLock()
Acquires the write lock on this version manager. |
protected String |
calculateCheckinVersionName(org.apache.jackrabbit.core.version.InternalVersionHistoryImpl history,
NodeImpl node,
boolean simple)
Calculates the name of the new version that will be created by a checkin call. |
protected InternalVersion |
checkin(org.apache.jackrabbit.core.version.InternalVersionHistoryImpl history,
NodeImpl node,
boolean simple,
Calendar cal)
Checks in a node |
Version |
checkin(NodeImpl node,
Calendar cal)
invokes the checkin() on the persistent version manager and remaps the newly created version objects. |
void |
close()
Close this version manager. |
protected InternalVersionItem |
createInternalVersionItem(NodeId id)
Creates an InternalVersionItem based on the NodeState
identified by id . |
protected VersionItemStateManager |
createItemStateManager(PersistenceManager pMgr,
NodeId rootId,
NodeTypeRegistry ntReg,
ItemStateCacheFactory cacheFactory,
ISMLocking ismLocking)
Creates a VersionItemStateManager or derivative. |
protected VersionHistoryInfo |
createVersionHistory(Session session,
NodeState node)
Creates a new version history. |
void |
externalUpdate(ChangeLog changes,
List events,
long timestamp,
String userData)
Handle an external update. |
VersionManagerImpl.DynamicESCFactory |
getEscFactory()
Returns the event state collection factory. |
InternalVersion |
getHeadVersionOfNode(NodeId id)
Returns the head version of the node with the given id. this is always the last of all versions. this only works correctly for liner version graphs (i.e. simple versioning) |
protected InternalVersionItem |
getItem(NodeId id)
Returns the item with the given persistent id. |
protected NodeStateEx |
getNodeStateEx(NodeId parentNodeId)
Returns the node with the given persistent id. |
PersistenceManager |
getPersistenceManager()
Return the persistence manager. |
protected SharedItemStateManager |
getSharedStateMgr()
Return the shared item state manager. |
InternalVersion |
getVersion(NodeId id)
Returns the version with the given id |
InternalVersionHistory |
getVersionHistory(NodeId id)
Returns the version history with the given id |
VersionHistoryInfo |
getVersionHistory(Session session,
NodeState node)
Returns information about the version history of the specified node. |
InternalVersionHistory |
getVersionHistoryOfNode(NodeId id)
Returns the version history for the versionable node with the given id. |
VirtualItemStateProvider |
getVirtualItemStateProvider()
returns the virtual item state provider that exposes the internal versions as items. |
boolean |
hasItem(NodeId id)
Return a flag indicating if the item specified exists. |
protected boolean |
hasItemReferences(NodeId id)
Checks if there are item references (from outside the version storage) that reference the given node. |
protected void |
itemDiscarded(InternalVersionItem item)
Invoked by the internal version item itself, when it's underlying persistence state was discarded. |
void |
itemsUpdated(Collection items)
Invoked by some external source to indicate that some items in the versions tree were updated. |
protected void |
removeVersion(org.apache.jackrabbit.core.version.InternalVersionHistoryImpl history,
Name name)
Removes the specified version from the history |
void |
removeVersion(VersionHistory history,
Name name)
Removes the specified version from the given version history. |
void |
setEventChannel(UpdateEventChannel eventChannel)
Set an event channel to inform about updates. |
protected InternalVersion |
setVersionLabel(org.apache.jackrabbit.core.version.InternalVersionHistoryImpl history,
Name version,
Name label,
boolean move)
Set version label on the specified version. |
Version |
setVersionLabel(VersionHistory history,
Name version,
Name label,
boolean move)
Sets the version label to the given version . |
void |
stateCreated(ItemState created)
Called when an ItemState has successfully
been created (i.e. its underlying persistent state was created). |
void |
stateDestroyed(ItemState destroyed)
Called when an ItemState has successfully been
removed (i.e. its underlying persistent state has been destroyed). |
void |
stateDiscarded(ItemState discarded)
Called when an ItemState has been discarded (i.e. it has
been rendered 'invalid'). |
void |
stateModified(ItemState modified)
Called when an ItemState has successfully
been modified (i.e. its underlying persistent state has changed). |
protected void |
versionCreated(InternalVersion version)
Invoked when a new internal item has been created. |
protected void |
versionDestroyed(InternalVersion version)
Invoked when a new internal item has been destroyed. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected LocalItemStateManager stateMgr
protected final NodeTypeRegistry ntReg
protected NodeStateEx historyRoot
Constructor Detail |
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public VersionManagerImpl(PersistenceManager pMgr, FileSystem fs, NodeTypeRegistry ntReg, DelegatingObservationDispatcher obsMgr, NodeId rootId, NodeId rootParentId, ItemStateCacheFactory cacheFactory, ISMLocking ismLocking) throws RepositoryException
RepositoryException
Method Detail |
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public VirtualItemStateProvider getVirtualItemStateProvider()
getVirtualItemStateProvider
in interface VersionManager
public PersistenceManager getPersistenceManager()
public void close() throws Exception
close
in interface VersionManager
Exception
- if an error occurspublic VersionManagerImpl.DynamicESCFactory getEscFactory()
protected VersionHistoryInfo createVersionHistory(Session session, NodeState node) throws RepositoryException
node
- NodeState
RepositoryException
getVersionHistory(Session, NodeState)
public boolean hasItem(NodeId id)
id
- the id of the item
true
if the item exists;
false
otherwiseprotected InternalVersionItem getItem(NodeId id) throws RepositoryException
id
- the id of the item
RepositoryException
- if an error occurspublic Version checkin(NodeImpl node, Calendar cal) throws RepositoryException
checkin
in interface VersionManager
node
- node to checkincal
- create time of the new version, or null
RepositoryException
- if an error occurspublic void removeVersion(VersionHistory history, Name name) throws VersionException, RepositoryException
removeVersion
in interface VersionManager
history
- version history to remove the version fromname
- name of the version
RepositoryException
- if an error occurs
VersionException
public Version setVersionLabel(VersionHistory history, Name version, Name label, boolean move) throws RepositoryException
label
to the given version
.
If the label is already assigned to another version, a VersionException is
thrown unless move
is true
. If version
is null
, the label is removed from the respective version.
In either case, the version the label was previously assigned is returned,
or null
of the label was not moved.
This method must not be synchronized since it could cause deadlocks with
item-reading listeners in the observation thread.
setVersionLabel
in interface VersionManager
history
- version historyversion
- name of the versionlabel
- new labelmove
- if true
label will be moved
null
RepositoryException
- if an error occurspublic void itemsUpdated(Collection items)
items
- items updatedpublic void setEventChannel(UpdateEventChannel eventChannel)
eventChannel
- event channelprotected void itemDiscarded(InternalVersionItem item)
protected boolean hasItemReferences(NodeId id) throws RepositoryException
id
- the id of the node
true
if there are item references from outside the
version storage; false
otherwise.
RepositoryException
- if an error occurs while reading from the
repository.protected NodeStateEx getNodeStateEx(NodeId parentNodeId) throws RepositoryException
parentNodeId
- the id of the node
RepositoryException
- if an error occurs while reading from the
repository.protected SharedItemStateManager getSharedStateMgr()
protected VersionItemStateManager createItemStateManager(PersistenceManager pMgr, NodeId rootId, NodeTypeRegistry ntReg, ItemStateCacheFactory cacheFactory, ISMLocking ismLocking) throws ItemStateException
VersionItemStateManager
or derivative.
pMgr
- persistence managerrootId
- root node idntReg
- node type registrycacheFactory
- cache factoryismLocking
- the ISM locking implementation
ItemStateException
- if an error occurspublic void stateCreated(ItemState created)
ItemState
has successfully
been created (i.e. its underlying persistent state was created).
Not used.
stateCreated
in interface ItemStateListener
created
- the ItemState
that has been 'created'public void stateModified(ItemState modified)
ItemState
has successfully
been modified (i.e. its underlying persistent state has changed).
Not used.
stateModified
in interface ItemStateListener
modified
- the ItemState
that has been 'modified'public void stateDestroyed(ItemState destroyed)
ItemState
has successfully been
removed (i.e. its underlying persistent state has been destroyed).
Remove item from cache on removal.
stateDestroyed
in interface ItemStateListener
destroyed
- the ItemState
that has been 'destroyed'public void stateDiscarded(ItemState discarded)
ItemState
has been discarded (i.e. it has
been rendered 'invalid').
Not used.
stateDiscarded
in interface ItemStateListener
discarded
- the ItemState
that has been discardedItemState.discard()
public void externalUpdate(ChangeLog changes, List events, long timestamp, String userData) throws RepositoryException
externalUpdate
in interface UpdateEventListener
changes
- external changes containing only node and property ids.events
- events to delivertimestamp
- when the change occured.userData
- the user data associated with this update.
RepositoryException
- if the update cannot be processedpublic InternalVersion getVersion(NodeId id) throws RepositoryException
getVersion
in interface VersionManager
id
- id of the version to retrieve
RepositoryException
- if an error occurspublic InternalVersionHistory getVersionHistory(NodeId id) throws RepositoryException
getVersionHistory
in interface VersionManager
id
- id of the version history
RepositoryException
- if an error occurspublic InternalVersionHistory getVersionHistoryOfNode(NodeId id) throws RepositoryException
getVersionHistoryOfNode
in interface VersionManager
id
- id of the node to retrieve the version history for
RepositoryException
- if an error occurs or the history does not exitpublic InternalVersion getHeadVersionOfNode(NodeId id) throws RepositoryException
getHeadVersionOfNode
in interface VersionManager
id
- id of the node to retrieve the version for
RepositoryException
- if an error occursprotected ISMLocking.WriteLock acquireWriteLock()
protected ISMLocking.ReadLock acquireReadLock()
public VersionHistoryInfo getVersionHistory(Session session, NodeState node) throws RepositoryException
getVersionHistory
in interface VersionManager
session
- workspace sessionnode
- node whose version history should be returned
RepositoryException
- if an error occursprotected InternalVersion checkin(org.apache.jackrabbit.core.version.InternalVersionHistoryImpl history, NodeImpl node, boolean simple, Calendar cal) throws RepositoryException
history
- the version historynode
- node to checkinsimple
- flag indicates simple versioningcal
- create time of the new version, or null
RepositoryException
- if an error occursNode.checkin()
protected String calculateCheckinVersionName(org.apache.jackrabbit.core.version.InternalVersionHistoryImpl history, NodeImpl node, boolean simple) throws RepositoryException
history
- the version historynode
- the node to checkinsimple
- if true
indicates simple versioning
RepositoryException
- if an error occurs.protected void removeVersion(org.apache.jackrabbit.core.version.InternalVersionHistoryImpl history, Name name) throws VersionException, RepositoryException
history
- the version history from where to remove the version.name
- the name of the version to remove.
VersionException
- if the version history
does
not have a version with name
.
RepositoryException
- if any other error occurs.protected InternalVersion setVersionLabel(org.apache.jackrabbit.core.version.InternalVersionHistoryImpl history, Name version, Name label, boolean move) throws RepositoryException
history
- version historyversion
- version namelabel
- version labelmove
- true
to move from existing version;
false
otherwise.
RepositoryException
- if an error occursprotected void versionCreated(InternalVersion version)
version
- internal version itemprotected void versionDestroyed(InternalVersion version)
version
- internal version itemprotected InternalVersionItem createInternalVersionItem(NodeId id) throws RepositoryException
InternalVersionItem
based on the NodeState
identified by id
.
id
- the node id of the version item.
null
if there is no node state
with the given id
.
RepositoryException
- if an error occurs while reading from the
version storage.
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