org.apache.jackrabbit.core
Class ZombieHierarchyManager

java.lang.Object
  org.apache.jackrabbit.core.HierarchyManagerImpl
      org.apache.jackrabbit.core.ZombieHierarchyManager

All Implemented Interfaces:

HierarchyManager

public class ZombieHierarchyManager
extends HierarchyManagerImpl

HierarchyManager implementation that is also able to build/resolve paths of those items that have been moved or removed (i.e. moved to the attic).

todo make use of path caching

Field Summary

protected ItemStateManager

attic the attic

Fields inherited from class org.apache.jackrabbit.core.HierarchyManagerImpl

provider, rootNodeId

Constructor Summary

ZombieHierarchyManager(HierarchyManagerImpl parent, ItemStateManager provider, ItemStateManager attic)

Method Summary

protected ChildNodeEntry	getChildNodeEntry(NodeState parent, Name name, int index) Returns the ChildNodeEntry of parent with the specified name and index or null if there's no such entry.
protected ChildNodeEntry	getChildNodeEntry(NodeState parent, NodeId id) Returns the ChildNodeEntry of parent with the specified uuid or null if there's no such entry.
protected ItemState	getItemState(ItemId id) Return an item state, given its item id.
protected NodeId	getParentId(ItemState state) Returns the parentUUID of the given item.
protected boolean	hasItemState(ItemId id) Determines whether an item state for a given item id exists.

Methods inherited from class org.apache.jackrabbit.core.HierarchyManagerImpl

buildPath, getDepth, getName, getName, getParentIds, getPath, getRelativeDepth, getRootNodeId, getShareRelativeDepth, isAncestor, isShareAncestor, pathResolved, resolveNodePath, resolvePath, resolvePath, resolvePath, resolvePropertyPath

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

attic

protected ItemStateManager attic

the attic

Constructor Detail

ZombieHierarchyManager

public ZombieHierarchyManager(HierarchyManagerImpl parent,
                              ItemStateManager provider,
                              ItemStateManager attic)

Method Detail

getItemState

protected ItemState getItemState(ItemId id)
                          throws NoSuchItemStateException,
                                 ItemStateException

Return an item state, given its item id.

Low-level hook provided for specialized derived classes.

Delivers state from attic if such exists, otherwise calls base class.

Overrides:

getItemState in class HierarchyManagerImpl

Parameters:

id - item id

Returns:

item state

Throws:

NoSuchItemStateException - if the item does not exist

ItemStateException - if an error occurs

See Also:

getItemState(ItemId)

hasItemState

protected boolean hasItemState(ItemId id)

Determines whether an item state for a given item id exists.

Low-level hook provided for specialized derived classes.

Returns true if there's state on the attic for the requested item; otherwise delegates to base class.

Overrides:

hasItemState in class HierarchyManagerImpl

Parameters:

id - item id

Returns:

true if an item state exists, otherwise false

See Also:

hasItemState(ItemId)

getParentId

protected NodeId getParentId(ItemState state)

Returns the parentUUID of the given item.

Low-level hook provided for specialized derived classes.

Also allows for removed items.

Overrides:

getParentId in class HierarchyManagerImpl

Parameters:

state - item state

Returns:

parentUUID of the given item

See Also:

getParentId(ItemState)

getChildNodeEntry

protected ChildNodeEntry getChildNodeEntry(NodeState parent,
                                           Name name,
                                           int index)

Returns the ChildNodeEntry of parent with the specified name and index or null if there's no such entry.

Low-level hook provided for specialized derived classes.

Also allows for removed/renamed child node entries.

Overrides:

getChildNodeEntry in class HierarchyManagerImpl

Parameters:

parent - node state

name - name of child node entry

index - index of child node entry

Returns:

the ChildNodeEntry of parent with the specified name and index or null if there's no such entry.

See Also:

getChildNodeEntry(NodeState, Name, int)

getChildNodeEntry

protected ChildNodeEntry getChildNodeEntry(NodeState parent,
                                           NodeId id)

Returns the ChildNodeEntry of parent with the specified uuid or null if there's no such entry.

Low-level hook provided for specialized derived classes.

Also allows for removed child node entries.

Overrides:

getChildNodeEntry in class HierarchyManagerImpl

Parameters:

parent - node state

id - id of child node entry

Returns:

the ChildNodeEntry of parent with the specified uuid or null if there's no such entry.

See Also:

getChildNodeEntry(NodeState, NodeId)