org.h2gis.network.graph_creator
Class GraphCreator<V extends org.javanetworkanalyzer.data.VId,E extends org.javanetworkanalyzer.model.Edge>

java.lang.Object
  org.h2gis.network.graph_creator.GraphCreator<V,E>

public class GraphCreator<V extends org.javanetworkanalyzer.data.VId,E extends org.javanetworkanalyzer.model.Edge>
extends Object

Creates a JGraphT graph from an edges table produced by org.h2gis.h2spatialext.function.spatial.graph.ST_Graph. The graph has the vertex and edge classes passed to the constructor. Its global and edge orientations and weights are specified by the strings passed to the constructor.

Author:

Adam Gouge

Field Summary

static int	DIRECTED_EDGE
static int	REVERSED_EDGE
static int	UNDIRECTED_EDGE

Constructor Summary

GraphCreator(Connection connection, String inputTable, GraphFunctionParser.Orientation globalOrientation, String edgeOrientationColumnName, String weightColumn, Class<? extends V> vertexClass, Class<? extends E> edgeClass)
Constructor.

Method Summary

protected org.javanetworkanalyzer.model.KeyedGraph<V,E>

prepareGraph() Prepares a graph.

Methods inherited from class java.lang.Object

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

Field Detail

DIRECTED_EDGE

public static final int DIRECTED_EDGE

See Also:

Constant Field Values

REVERSED_EDGE

public static final int REVERSED_EDGE

See Also:

Constant Field Values

UNDIRECTED_EDGE

public static final int UNDIRECTED_EDGE

See Also:

Constant Field Values

Constructor Detail

GraphCreator

public GraphCreator(Connection connection,
                    String inputTable,
                    GraphFunctionParser.Orientation globalOrientation,
                    String edgeOrientationColumnName,
                    String weightColumn,
                    Class<? extends V> vertexClass,
                    Class<? extends E> edgeClass)

Constructor.

Parameters:

connection - Connection

inputTable - Name of edges table from org.h2gis.h2spatialext.function.spatial.graph.ST_Graph.

globalOrientation - Global orientation

edgeOrientationColumnName - Edge orientation

weightColumn - Weight column name

vertexClass - Vertex class

edgeClass - Edge class

Method Detail

prepareGraph

protected org.javanetworkanalyzer.model.KeyedGraph<V,E> prepareGraph()
                                                                                                                                                  throws SQLException

Prepares a graph.

Returns:

The newly prepared graph, or null if the graph could not be created

Throws:

SQLException