Package org.h2gis.functions.io.json

Class JsonWrite

java.lang.Object

org.h2gis.api.AbstractFunction

org.h2gis.functions.io.json.JsonWrite

All Implemented Interfaces:

org.h2gis.api.Function, org.h2gis.api.ScalarFunction

public class JsonWrite
extends org.h2gis.api.AbstractFunction
implements org.h2gis.api.ScalarFunction

SQL function to write a table to a JSON file.

Author:

Erwan Bocher (CNRS), Sylvain PALOMINOS (Lab-STICC UBS, Chaire GEOTERA, 2020)

Field Summary

Fields inherited from interface org.h2gis.api.Function

PROP_NAME, PROP_REMARKS

Fields inherited from interface org.h2gis.api.ScalarFunction

PROP_DETERMINISTIC

Constructor Summary

Constructors

Constructor	Description
JsonWrite()

Method Summary

Modifier and Type	Method	Description
static void	exportTable(Connection connection, String fileName, String tableReference)	Write the JSON file.
static void	exportTable(Connection connection, String fileName, String tableReference, boolean deleteFile)
String	getJavaStaticMethod()

Methods inherited from class org.h2gis.api.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.api.Function

getProperty

Constructor Detail

JsonWrite

public JsonWrite()

Method Detail

getJavaStaticMethod

public String getJavaStaticMethod()

Specified by:

getJavaStaticMethod in interface org.h2gis.api.ScalarFunction

exportTable

public static void exportTable(Connection connection,
                               String fileName,
                               String tableReference,
                               boolean deleteFile)
                        throws IOException,
                               SQLException

Parameters:

connection - Connection to the database.

fileName - Name of the destination file.

tableReference - Name of the table to export or select query. Note : The select query must be enclosed in parenthesis

deleteFile - True if the destination files should be deleted, false otherwise.

Throws:

SQLException - Exception thrown when an SQL error occurs.

IOException - Exception when a file writing error occurs.

exportTable

public static void exportTable(Connection connection,
                               String fileName,
                               String tableReference)
                        throws SQLException,
                               IOException

Write the JSON file.

Parameters:

connection - Connection to the database.

fileName - Name of the destination file.

tableReference - Name of the table to export or select query. Note : The select query must be enclosed in parenthesis

Throws:

SQLException - Exception thrown when an SQL error occurs.

IOException - Exception when a file writing error occurs.