Package org.apache.jackrabbit.core

Interface HierarchyManager

All Known Implementing Classes:

CachingHierarchyManager, HierarchyManagerImpl, ZombieHierarchyManager

public interface HierarchyManager

The HierarchyManager interface ...

Method Summary

Modifier and Type	Method	Description
int	getDepth(ItemId id)	Returns the depth of the specified item which is equivalent to getPath(id).getAncestorCount().
Name	getName(ItemId id)	Returns the name of the specified item.
Name	getName(NodeId id, NodeId parentId)	Returns the name of the specified item, with the given parent id.
Path	getPath(ItemId id)	Returns the path to the given item.
int	getRelativeDepth(NodeId ancestorId, ItemId descendantId)	Returns the depth of the specified descendant relative to the given ancestor.
int	getShareRelativeDepth(NodeId ancestorId, ItemId descendantId)	Returns the depth of the specified share-descendant relative to the given share-ancestor.
boolean	isAncestor(NodeId nodeId, ItemId itemId)	Determines whether the node with the specified nodeId is an ancestor of the item denoted by the given itemId.
boolean	isShareAncestor(NodeId ancestor, NodeId descendant)	Determines whether the node with the specified ancestor is a share ancestor of the item denoted by the given descendant.
NodeId	resolveNodePath(Path path)	Resolves a path into a node id.
ItemId	resolvePath(Path path)	Deprecated. As of JSR 283, a Path doesn't anymore uniquely identify an Item, therefore resolveNodePath(Path) and resolvePropertyPath(Path) should be used instead.
PropertyId	resolvePropertyPath(Path path)	Resolves a path into a property id.

Method Detail

resolvePath

ItemId resolvePath(Path path)
            throws RepositoryException

Deprecated.

As of JSR 283, a Path doesn't anymore uniquely identify an Item, therefore resolveNodePath(Path) and resolvePropertyPath(Path) should be used instead.

Resolves a path into an item id.

If there is both a node and a property at the specified path, this method will return the id of the node.

Note that, for performance reasons, this method returns null rather than throwing a PathNotFoundException if there's no item to be found at path.

Parameters:

path - path to resolve

Returns:

item id referred to by path or null if there's no item at path.

Throws:

RepositoryException - if an error occurs

resolveNodePath

NodeId resolveNodePath(Path path)
                throws RepositoryException

Resolves a path into a node id.

Note that, for performance reasons, this method returns null rather than throwing a PathNotFoundException if there's no node to be found at path.

Parameters:

path - path to resolve

Returns:

node id referred to by path or null if there's no node at path.

Throws:

RepositoryException - if an error occurs

resolvePropertyPath

PropertyId resolvePropertyPath(Path path)
                        throws RepositoryException

Resolves a path into a property id.

Note that, for performance reasons, this method returns null rather than throwing a PathNotFoundException if there's no property to be found at path.

Parameters:

path - path to resolve

Returns:

property id referred to by path or null if there's no property at path.

Throws:

RepositoryException - if an error occurs

getPath

Path getPath(ItemId id)
      throws ItemNotFoundException,
             RepositoryException

Returns the path to the given item.

Parameters:

id -

Returns:

Throws:

ItemNotFoundException

RepositoryException

getName

Name getName(ItemId id)
      throws ItemNotFoundException,
             RepositoryException

Returns the name of the specified item.

Parameters:

id - id of item whose name should be returned

Returns:

Throws:

ItemNotFoundException

RepositoryException

getName

Name getName(NodeId id,
             NodeId parentId)
      throws ItemNotFoundException,
             RepositoryException

Returns the name of the specified item, with the given parent id. If the given item is not shareable, this is identical to getName(ItemId).

Parameters:

id - node id

parentId - parent node id

Returns:

name

Throws:

ItemNotFoundException

RepositoryException

getDepth

int getDepth(ItemId id)
      throws ItemNotFoundException,
             RepositoryException

Returns the depth of the specified item which is equivalent to getPath(id).getAncestorCount(). The depth reflects the absolute hierarchy level.

Parameters:

id - item id

Returns:

the depth of the specified item

Throws:

ItemNotFoundException - if the specified id does not denote an existing item.

RepositoryException - if another error occurs

getRelativeDepth

int getRelativeDepth(NodeId ancestorId,
                     ItemId descendantId)
              throws ItemNotFoundException,
                     RepositoryException

Returns the depth of the specified descendant relative to the given ancestor. If ancestorId and descendantId denote the same item 0 is returned. If ancestorId does not denote an ancestor -1 is returned.

Parameters:

ancestorId - ancestor id

descendantId - descendant id

Returns:

the relative depth; -1 if ancestorId does not denote an ancestor of the item denoted by descendantId (or itself).

Throws:

ItemNotFoundException - if either of the specified id's does not denote an existing item.

RepositoryException - if another error occurs

isAncestor

boolean isAncestor(NodeId nodeId,
                   ItemId itemId)
            throws ItemNotFoundException,
                   RepositoryException

Determines whether the node with the specified nodeId is an ancestor of the item denoted by the given itemId. This is equivalent to getPath(nodeId).isAncestorOf(getPath(itemId)).

Parameters:

nodeId - node id

itemId - item id

Returns:

true if the node with the specified nodeId is an ancestor of the item denoted by the given itemId; false otherwise

Throws:

ItemNotFoundException - if any of the specified id's does not denote an existing item.

RepositoryException - if another error occurs

isShareAncestor

boolean isShareAncestor(NodeId ancestor,
                        NodeId descendant)
                 throws ItemNotFoundException,
                        RepositoryException

Determines whether the node with the specified ancestor is a share ancestor of the item denoted by the given descendant. This is true for two nodes A, B if either:

• A is a (proper) ancestor of B
• there is a non-empty sequence of nodes N1,... ,Nk such that A= N1 and B=Nk and Ni is the parent or a share-parent of Ni+1 (for every i in 1 ...k-1.

Parameters:

ancestor - node id

descendant - item id

Returns:

true if the node denoted by ancestor is a share ancestor of the item denoted by descendant, false otherwise

Throws:

ItemNotFoundException - if any of the specified id's does not denote an existing item.

RepositoryException - if another error occurs

getShareRelativeDepth

int getShareRelativeDepth(NodeId ancestorId,
                          ItemId descendantId)
                   throws ItemNotFoundException,
                          RepositoryException

Returns the depth of the specified share-descendant relative to the given share-ancestor. If ancestor and descendant denote the same item, 0 is returned. If ancestor does not denote an share-ancestor -1 is returned.

Parameters:

ancestorId - ancestor id

descendantId - descendant id

Returns:

the relative depth; -1 if ancestor does not denote a share-ancestor of the item denoted by descendant (or itself).

Throws:

ItemNotFoundException - if either of the specified id's does not denote an existing item.

RepositoryException - if another error occurs