org.h2gis.network.graph_creator
Class GraphFunctionParser

java.lang.Object
  org.h2gis.network.graph_creator.GraphFunctionParser

public class GraphFunctionParser
extends Object

A helper class for parsing String arguments to h2network graph functions.

Author:

Adam Gouge

Nested Class Summary

static class

GraphFunctionParser.Orientation

Field Summary

static String	DIRECTED
static String	EDGE_ORIENTATION_COLUMN
static String	ORIENTATION_ERROR
static String	POSSIBLE_ORIENTATIONS
static String	REVERSED
static String	SEPARATOR
static String	UNDIRECTED

Constructor Summary

GraphFunctionParser()

Method Summary

String	getEdgeOrientation() Get the edge orientation column name.
GraphFunctionParser.Orientation	getGlobalOrientation() Get the global orientation string.
String	getWeightColumn() Get the weight column name.
protected static boolean	isDestinationsString(String s) Returns true if the given string contains a comma.
static int[]	parseDestinationsString(String s) Returns an array of destination ids from a comma-separated list of destinations.
protected String	parseEdgeOrientation(String v) Recovers the edge orientation from a string.
protected static GraphFunctionParser.Orientation	parseGlobalOrientation(String v) Recovers the global orientation from a string.
static TableLocation	parseInputTable(Connection connection, String inputTable) Convert an input table String to a TableLocation
protected String	parseWeight(String v) Recovers the weight column name from a string.
void	parseWeightAndOrientation(String arg1, String arg2) Parse the weight and orientation(s) from two strings, given in arbitrary order.
static TableLocation	suffixTableLocation(TableLocation inputTable, String suffix) Suffix a TableLocation

Methods inherited from class java.lang.Object

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

Field Detail

SEPARATOR

public static final String SEPARATOR

See Also:

Constant Field Values

DIRECTED

public static final String DIRECTED

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Constant Field Values

REVERSED

public static final String REVERSED

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Constant Field Values

UNDIRECTED

public static final String UNDIRECTED

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Constant Field Values

EDGE_ORIENTATION_COLUMN

public static final String EDGE_ORIENTATION_COLUMN

See Also:

Constant Field Values

POSSIBLE_ORIENTATIONS

public static final String POSSIBLE_ORIENTATIONS

See Also:

Constant Field Values

ORIENTATION_ERROR

public static final String ORIENTATION_ERROR

See Also:

Constant Field Values

Constructor Detail

GraphFunctionParser

public GraphFunctionParser()

Method Detail

parseWeight

protected String parseWeight(String v)

Recovers the weight column name from a string.

Parameters:

v - String

Returns:

the weight column name

parseGlobalOrientation

protected static GraphFunctionParser.Orientation parseGlobalOrientation(String v)

Recovers the global orientation from a string.

Parameters:

v - String

Returns:

The global orientation

parseEdgeOrientation

protected String parseEdgeOrientation(String v)

Recovers the edge orientation from a string.

Parameters:

v - String

Returns:

The edge orientation

parseWeightAndOrientation

public void parseWeightAndOrientation(String arg1,
                                      String arg2)

Parse the weight and orientation(s) from two strings, given in arbitrary order.

Parameters:

arg1 - Weight or orientation

arg2 - Weight or orientation

getWeightColumn

public String getWeightColumn()

Get the weight column name.

Returns:

weight column name

getGlobalOrientation

public GraphFunctionParser.Orientation getGlobalOrientation()

Get the global orientation string.

Returns:

global orientation string

getEdgeOrientation

public String getEdgeOrientation()

Get the edge orientation column name.

Returns:

edge orientation column name

isDestinationsString

protected static boolean isDestinationsString(String s)

Returns true if the given string contains a comma.

Parameters:

s - String

Returns:

true if the given string contains a comma

parseDestinationsString

public static int[] parseDestinationsString(String s)

Returns an array of destination ids from a comma-separated list of destinations.

Parameters:

s - Comma-separated list of destinations

Returns:

An array of destination ids

parseInputTable

public static TableLocation parseInputTable(Connection connection,
                                            String inputTable)
                                     throws SQLException

Convert an input table String to a TableLocation

Parameters:

connection - Connection

inputTable - Input table

Returns:

corresponding TableLocation

Throws:

SQLException

suffixTableLocation

public static TableLocation suffixTableLocation(TableLocation inputTable,
                                                String suffix)

Suffix a TableLocation

Parameters:

inputTable - Input table

suffix - Suffix

Returns:

suffixed TableLocation