org.h2gis.network.graph_creator
Class ST_Accessibility

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

All Implemented Interfaces:

Function, ScalarFunction

public class ST_Accessibility
extends GraphFunction
implements ScalarFunction

Calculates, for each vertex, the closest destination among several possible destinations, as well as the distance to this destination.

Author:

Adam Gogue

Field Summary

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_Accessibility()
Constructor

Method Summary

static ResultSet	getAccessibility(Connection connection, String inputTable, String orientation, String arg3)
static ResultSet	getAccessibility(Connection connection, String inputTable, String orientation, String weight, String arg4)
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

REMARKS

public static final String REMARKS

See Also:

Constant Field Values

Constructor Detail

ST_Accessibility

public ST_Accessibility()

Constructor

Method Detail

getJavaStaticMethod

public String getJavaStaticMethod()

Specified by:

getJavaStaticMethod in interface ScalarFunction

getAccessibility

public static ResultSet getAccessibility(Connection connection,
                                         String inputTable,
                                         String orientation,
                                         String arg3)
                                  throws SQLException

Parameters:

connection - Connection

inputTable - Edges table produced by ST_Graph

orientation - Orientation string

arg3 - Destination string or destination table

Returns:

Table with closest destination id and distance to closest destination

Throws:

SQLException

getAccessibility

public static ResultSet getAccessibility(Connection connection,
                                         String inputTable,
                                         String orientation,
                                         String weight,
                                         String arg4)
                                  throws SQLException

Parameters:

connection - Connection

inputTable - Edges table produced by ST_Graph

orientation - Orientation string

weight - Weight

arg4 - Destination string or destination table

Returns:

Table with closest destination id and distance to closest destination

Throws:

SQLException