Interface IBiDirectionalGraphDataSource<V>
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- Type Parameters:
V- the type of the nodes in the graph
- All Superinterfaces:
IGraphDataSource<V>
- All Known Implementing Classes:
Graph,IBiDirectionalWrapper
public interface IBiDirectionalGraphDataSource<V> extends IGraphDataSource<V>
A bi-directional graph data source supports all operations that anIGraphDataSourcedoes, but it also makes it possible to query the incoming edges of nodes, not only the outgoing edges.
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description IMemoryView<V>getSourceNodes(V target)Returns the source nodes for the given target node.-
Methods inherited from interface org.eclipse.viatra.query.runtime.base.itc.igraph.IGraphDataSource
attachAsFirstObserver, attachObserver, detachObserver, getAllNodes, getTargetNodes
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Method Detail
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getSourceNodes
IMemoryView<V> getSourceNodes(V target)
Returns the source nodes for the given target node. The returned data structure is anIMultisetbecause of potential parallel edges in the graph data source. The method must not return null.- Parameters:
target- the target node- Returns:
- the multiset of source nodes
- Since:
- 2.0
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