org.plasma.sdo.core.collector

Class SourceNodeCollector

java.lang.Object

org.plasma.sdo.core.collector.SourceNodeCollector

All Implemented Interfaces:

PlasmaDataGraphVisitor

public class SourceNodeCollector
extends Object
implements PlasmaDataGraphVisitor

Visits an entire data graph, searching for data objects which have link(s) to the given target data object. Used to accommodate operations on directed associations, i.e. where the association is on-way and no opposite property is available.

See Also:

PlasmaDataGraphVisitor

Constructor Summary

Constructors

Constructor and Description
SourceNodeCollector(DataObject target)

Method Summary

Modifier and Type	Method and Description
List<LinkedNode>	getResult() Returns the nodes which are part of the contiguous containment hierarchy from the given source.
void	visit(DataObject target, DataObject source, String sourcePropertyName, int level) Called by the graph traversal algorithm (as part of the visitor pattern) when a graph node is encountered.

Methods inherited from class java.lang.Object

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

Constructor Detail

SourceNodeCollector

public SourceNodeCollector(DataObject target)

Method Detail

visit

public void visit(DataObject target,
                  DataObject source,
                  String sourcePropertyName,
                  int level)

Called by the graph traversal algorithm (as part of the visitor pattern) when a graph node is encountered.

Specified by:

visit in interface PlasmaDataGraphVisitor

getResult

public List<LinkedNode> getResult()

Returns the nodes which are part of the contiguous containment hierarchy from the given source.

Returns:

the nodes which are part of the contiguous containment hierarchy from the given source.