Package org.alfresco.repo.node.db

Class NodeHierarchyWalker

java.lang.Object

org.alfresco.repo.node.db.NodeHierarchyWalker

public class NodeHierarchyWalker
extends Object

Class that walks down a hierarchy gathering view details for later processing.

This class is not threadsafe and should be used sequentially on a single thread and then discarded.

Since:

4.1.1

Author:

Derek Hulley

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	NodeHierarchyWalker.VisitedNode	Carries data about a node in the hierarchy

Constructor Summary

Constructors

Constructor	Description
NodeHierarchyWalker(NodeDAO nodeDAO)

Method Summary

Modifier and Type	Method	Description
NodeHierarchyWalker.VisitedNode	getNode(Long id)
NodeHierarchyWalker.VisitedNode	getNode(NodeRef nodeRef)
List<NodeHierarchyWalker.VisitedNode>	getNodes(boolean leafFirst)	Return the IDs of the nodes visited in desired order
void	walkHierarchy(Pair<Long,NodeRef> nodePair, Pair<Long,ChildAssociationRef> parentAssocPair)	Walk a hierachy

Methods inherited from class java.lang.Object

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

Constructor Details

NodeHierarchyWalker

public NodeHierarchyWalker(NodeDAO nodeDAO)

Parameters:

nodeDAO - the low-leve query service

Method Details

getNode

public NodeHierarchyWalker.VisitedNode getNode(Long id)

Returns:

the node data for the node ID or null if not visited

getNode

public NodeHierarchyWalker.VisitedNode getNode(NodeRef nodeRef)

Returns:

the node data for the node reference or null if not visited

getNodes

public List<NodeHierarchyWalker.VisitedNode> getNodes(boolean leafFirst)

Return the IDs of the nodes visited in desired order

Parameters:

leafFirst - true to list the leaf nodes first

Returns:

the IDs of the nodes visited

walkHierarchy

public void walkHierarchy(Pair<Long,NodeRef> nodePair,
 Pair<Long,ChildAssociationRef> parentAssocPair)

Walk a hierachy