org.eclipse.incquery.runtime.base.itc.igraph

Interface IBiDirectionalGraphDataSource<V>

Type Parameters:

V - the type of the nodes in the graph

All Superinterfaces:

IGraphDataSource<V>, java.io.Serializable

All Known Implementing Classes:

Graph, IBiDirectionalWrapper

public interface IBiDirectionalGraphDataSource<V>
extends IGraphDataSource<V>

This interface extends the functionality of IGraphDataSource with an extra method. One can query the source nodes of those edges which have a given target node.

Author:

Tamas Szabo

Method Summary

Modifier and Type	Method and Description
java.util.List<V>	getSourceNodes(V target) Returns the source nodes of those edges that end in target.

Methods inherited from interface org.eclipse.incquery.runtime.base.itc.igraph.IGraphDataSource

attachObserver, detachObserver, getAllNodes, getTargetNodes

Method Detail

getSourceNodes

java.util.List<V> getSourceNodes(V target)

Returns the source nodes of those edges that end in target. The nodes are returned as a List as multiple edges can be present between two arbitrary nodes. If no such node can be found than the method should return null.

Parameters:

target - the target node

Returns:

the list of source nodes or null if no sources can be found