org.h2gis.network.graph_creator
Class ST_GraphAnalysis

java.lang.Object
  org.h2gis.h2spatialapi.AbstractFunction
      org.h2gis.network.graph_creator.GraphFunction
          org.h2gis.network.graph_creator.ST_GraphAnalysis

All Implemented Interfaces:

Function, ScalarFunction

public class ST_GraphAnalysis
extends GraphFunction
implements ScalarFunction

Calculates closeness and betweenness centrality for nodes, as well as betweenness centrality for edges.

Author:

Adam Gouge

Field Summary

protected static int	BATCH_SIZE
static String	REMARKS

Fields inherited from class org.h2gis.network.graph_creator.GraphFunction

ARG_ERROR

Fields inherited from interface org.h2gis.h2spatialapi.ScalarFunction

PROP_DETERMINISTIC, PROP_NOBUFFER

Fields inherited from interface org.h2gis.h2spatialapi.Function

PROP_NAME, PROP_REMARKS

Constructor Summary

ST_GraphAnalysis()
Constructor

Method Summary

static boolean	doGraphAnalysis(Connection connection, String inputTable, String orientation) Calculate centrality indices on the nodes and edges of a graph constructed from the input table.
static boolean	doGraphAnalysis(Connection connection, String inputTable, String orientation, String weight) Calculate centrality indices on the nodes and edges of a graph constructed from the input table.
String	getJavaStaticMethod()

Methods inherited from class org.h2gis.network.graph_creator.GraphFunction

logTime, prepareGraph

Methods inherited from class org.h2gis.h2spatialapi.AbstractFunction

addProperty, getProperty, removeProperty

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.h2gis.h2spatialapi.Function

getProperty

Field Detail

BATCH_SIZE

protected static final int BATCH_SIZE

See Also:

Constant Field Values

REMARKS

public static final String REMARKS

See Also:

Constant Field Values

Constructor Detail

ST_GraphAnalysis

public ST_GraphAnalysis()

Constructor

Method Detail

getJavaStaticMethod

public String getJavaStaticMethod()

Specified by:

getJavaStaticMethod in interface ScalarFunction

doGraphAnalysis

public static boolean doGraphAnalysis(Connection connection,
                                      String inputTable,
                                      String orientation)
                               throws SQLException,
                                      NoSuchMethodException,
                                      InstantiationException,
                                      IllegalAccessException,
                                      InvocationTargetException

Calculate centrality indices on the nodes and edges of a graph constructed from the input table.

Parameters:

connection - Connection

inputTable - Input table

orientation - Global orientation

Returns:

True if the calculation was successful

Throws:

SQLException

NoSuchMethodException

InstantiationException

IllegalAccessException

InvocationTargetException

doGraphAnalysis

public static boolean doGraphAnalysis(Connection connection,
                                      String inputTable,
                                      String orientation,
                                      String weight)
                               throws SQLException,
                                      InvocationTargetException,
                                      NoSuchMethodException,
                                      InstantiationException,
                                      IllegalAccessException

Calculate centrality indices on the nodes and edges of a graph constructed from the input table.

Parameters:

connection - Connection

inputTable - Input table

orientation - Global orientation

weight - Edge weight column name

Returns:

True if the calculation was successful

Throws:

SQLException

InvocationTargetException

NoSuchMethodException

InstantiationException

IllegalAccessException