org.h2.samples

Class Function

java.lang.Object

org.h2.samples.Function

public class Function
extends java.lang.Object

This sample application shows how to define and use custom (user defined) functions in this database.

Constructor Summary

Constructors

Constructor and Description
Function()

Method Summary

Modifier and Type	Method and Description
static java.sql.ResultSet	getMatrix(java.sql.Connection conn, java.lang.Integer size) Creates a simple result set with two columns.
static boolean	isPrime(int value) Check if a value is a prime number.
static void	main(java.lang.String... args) This method is called when executing this sample application from the command line.
static java.sql.ResultSet	query(java.sql.Connection conn, java.lang.String sql) Execute a query.
static java.sql.ResultSet	simpleResultSet() Creates a simple result set with one row.

Methods inherited from class java.lang.Object

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

Constructor Detail

Function

public Function()

Method Detail

main

public static void main(java.lang.String... args)
                 throws java.lang.Exception

This method is called when executing this sample application from the command line.

Parameters:

args - the command line parameters

Throws:

java.lang.Exception

isPrime

public static boolean isPrime(int value)

Check if a value is a prime number.

Parameters:

value - the value

Returns:

true if it is a prime number

query

public static java.sql.ResultSet query(java.sql.Connection conn,
                                       java.lang.String sql)
                                throws java.sql.SQLException

Execute a query.

Parameters:

conn - the connection

sql - the SQL statement

Returns:

the result set

Throws:

java.sql.SQLException

simpleResultSet

public static java.sql.ResultSet simpleResultSet()

Creates a simple result set with one row.

Returns:

the result set

getMatrix

public static java.sql.ResultSet getMatrix(java.sql.Connection conn,
                                           java.lang.Integer size)
                                    throws java.sql.SQLException

Creates a simple result set with two columns.

Parameters:

conn - the connection

size - the number of x and y values

Returns:

the result set with two columns

Throws:

java.sql.SQLException