FileFunctions

java.lang.Object

org.h2.samples.FileFunctions

public class FileFunctions extends Object

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

Constructor Summary

Constructors

Constructor

Description

FileFunctions()
Method Summary

Modifier and Type

Method

Description

static void

main(String... args)

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

static byte[]

readFile(String fileName)

Read a file into a byte array.

static String

readTextFile(String fileName)

Read a String from a file.

static String

readTextFileWithEncoding(String fileName, 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 Details
- FileFunctions
  
  public FileFunctions()
Method Details
- main
  
  public static void main(String... args) throws Exception
  
  This method is called when executing this sample application from the command line.
  
  Parameters:
  
  args - the command line parameters
  
  Throws:
  
  Exception - on failure
- readTextFile
  
  public static String readTextFile(String fileName) throws IOException
  
  Read a String from a file. The default encoding for this platform is used.
  
  Parameters:
  
  fileName - the file name
  
  Returns:
  
  the text
  
  Throws:
  
  IOException - on failure
- readTextFileWithEncoding
  
  public static String readTextFileWithEncoding(String fileName, String encoding) throws IOException
  
  Read a String from a file using the specified encoding.
  
  Parameters:
  
  fileName - the file name
  
  encoding - the encoding
  
  Returns:
  
  the text
  
  Throws:
  
  IOException - on failure
- readFile
  
  public static byte[] readFile(String fileName) throws IOException
  
  Read a file into a byte array.
  
  Parameters:
  
  fileName - the file name
  
  Returns:
  
  the byte array
  
  Throws:
  
  IOException - on failure