org.h2.samples

Class FileFunctions

java.lang.Object

org.h2.samples.FileFunctions

public class FileFunctions
extends java.lang.Object

This sample application shows how to create a user defined function to read a file from the file system.

Constructor Summary

Constructors

Constructor and Description
FileFunctions()

Method Summary

Modifier and Type	Method and Description
static void	main(java.lang.String... args) This method is called when executing this sample application from the command line.
static byte[]	readFile(java.lang.String fileName) Read a file into a byte array.
static java.lang.String	readTextFile(java.lang.String fileName) Read a String from a file.
static java.lang.String	readTextFileWithEncoding(java.lang.String fileName, java.lang.String encoding) Read a String from a file using the specified encoding.

Methods inherited from class java.lang.Object

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

Constructor Detail

FileFunctions

public FileFunctions()

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

readTextFile

public static java.lang.String readTextFile(java.lang.String fileName)
                                     throws java.io.IOException

Read a String from a file. The default encoding for this platform is used.

Parameters:

fileName - the file name

Returns:

the text

Throws:

java.io.IOException

readTextFileWithEncoding

public static java.lang.String readTextFileWithEncoding(java.lang.String fileName,
                                                        java.lang.String encoding)
                                                 throws java.io.IOException

Read a String from a file using the specified encoding.

Parameters:

fileName - the file name

encoding - the encoding

Returns:

the text

Throws:

java.io.IOException

readFile

public static byte[] readFile(java.lang.String fileName)
                       throws java.io.IOException

Read a file into a byte array.

Parameters:

fileName - the file name

Returns:

the byte array

Throws:

java.io.IOException