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

Interface IGraphDataSource<V>

Type Parameters:

V - the type of the nodes in the graph

All Superinterfaces:

java.io.Serializable

All Known Subinterfaces:

IBiDirectionalGraphDataSource<V>

All Known Implementing Classes:

EMFDataSource, Graph, IBiDirectionalWrapper

public interface IGraphDataSource<V>
extends java.io.Serializable

This interface is used to provide information about the graph to the observers.

Author:

Tamas Szabo

Method Summary

Modifier and Type	Method and Description
void	attachObserver(IGraphObserver<V> go) Attach a new graph observer.
void	detachObserver(IGraphObserver<V> go) Detach an existing observer.
java.util.Set<V>	getAllNodes() Get all nodes of the graph.
java.util.List<V>	getTargetNodes(V source) Get those nodes that are the target of an edge starting with source.

Method Detail

attachObserver

void attachObserver(IGraphObserver<V> go)

Attach a new graph observer. Note that the order of attaching the observers may be important (some observers will be notified earlier than others).

Parameters:

go - the graph observer

detachObserver

void detachObserver(IGraphObserver<V> go)

Detach an existing observer.

Parameters:

go - the graph observer

getAllNodes

java.util.Set<V> getAllNodes()

Get all nodes of the graph.

Returns:

the set of all nodes

getTargetNodes

java.util.List<V> getTargetNodes(V source)

Get those nodes that are the target of an edge starting with source. List is returned as multiple edges may be present.

Parameters:

source - the source node

Returns:

the list of target nodes or null if no targets can be found