org.h2gis.functions.io.geojson

Class GeoJsonWriteDriver

java.lang.Object

org.h2gis.functions.io.geojson.GeoJsonWriteDriver

public class GeoJsonWriteDriver
extends Object

A simple GeoJSON driver to write a spatial table to a GeoJSON file. GeoJSON is a format for encoding a variety of geographic data structures. A GeoJSON object may represent a geometry, a feature, or a collection of features. GeoJSON supports the following geometry types: POINT, LINESTRING, POLYGON, MULTIPOINT, MULTILINESTRING, MULTIPOLYGON, and GEOMETRYCOLLECTION. Syntax: { "type": "FeatureCollection", "features": [ { "type": "Feature", "geometry":{"type": "Point", "coordinates": [102.0, 0.5]}, "properties": {"prop0": "value0"} } ]}

Author:

Erwan Bocher, Hai Trung Pham

Constructor Summary

Constructors

Constructor and Description
GeoJsonWriteDriver(Connection connection) A simple GeoJSON driver to write a spatial table to a GeoJSON file.

Method Summary

Modifier and Type	Method and Description
boolean	isSupportedPropertyType(int sqlTypeId, String sqlTypeName) Return true is the SQL type is supported by the GeoJSON driver.
void	write(org.h2gis.api.ProgressVisitor progress, ResultSet resultSet, File file) Write a resulset to a geojson file
void	write(org.h2gis.api.ProgressVisitor progress, ResultSet rs, File fileName, String encoding) Write a resulset to a geojson file
void	write(org.h2gis.api.ProgressVisitor progress, String tableName, File fileName, String encoding) Write the spatial table to GeoJSON format.

Methods inherited from class java.lang.Object

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

Constructor Detail

GeoJsonWriteDriver

public GeoJsonWriteDriver(Connection connection)

A simple GeoJSON driver to write a spatial table to a GeoJSON file.

Parameters:

connection -

Method Detail

write

public void write(org.h2gis.api.ProgressVisitor progress,
                  ResultSet resultSet,
                  File file)
           throws SQLException,
                  IOException

Write a resulset to a geojson file

Parameters:

progress -

resultSet -

file -

Throws:

SQLException

IOException

write

public void write(org.h2gis.api.ProgressVisitor progress,
                  ResultSet rs,
                  File fileName,
                  String encoding)
           throws SQLException,
                  IOException

Write a resulset to a geojson file

Parameters:

progress -

rs - input resulset

fileName - the output file

encoding -

Throws:

SQLException

IOException

write

public void write(org.h2gis.api.ProgressVisitor progress,
                  String tableName,
                  File fileName,
                  String encoding)
           throws SQLException,
                  IOException

Write the spatial table to GeoJSON format.

Parameters:

progress -

tableName -

fileName -

encoding -

Throws:

SQLException

IOException

isSupportedPropertyType

public boolean isSupportedPropertyType(int sqlTypeId,
                                       String sqlTypeName)
                                throws SQLException

Return true is the SQL type is supported by the GeoJSON driver.

Parameters:

sqlTypeId -

sqlTypeName -

Returns:

Throws:

SQLException