Package sk.antons.tempdb.base

Class DbFile

java.lang.Object

sk.antons.tempdb.base.DbFile

public class DbFile
extends Object

Database file helper class

Author:

antons

Constructor Summary

Constructors

Constructor	Description
DbFile(File file)	Constructs db file using specified filesystem file.

Method Summary

Modifier and Type	Method	Description
void	checkExistence()	Check if file already exists Throws exception if file not exists
void	delete()	Deletes file
boolean	exists()	Check if file already exists
InputStream	inputStream()	Creates input stream from file
static DbFile	instance(File file)	Constructs db file using specified filesystem file.
static DbFile	instance(String filename)	Constructs db file using specified filesystem file.
OutputStream	outputStream()	Creates output stream from file
RandomAccessFile	randomAccessFile()	Creates random access file from file
static DbFile	temporary(String prefix, String postfix, boolean deleteOnExit)	Constructs db file using new temporary file.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

DbFile

public DbFile(File file)

Constructs db file using specified filesystem file.

Parameters:

file -

Method Detail

instance

public static DbFile instance(File file)

Constructs db file using specified filesystem file.

Parameters:

file -

instance

public static DbFile instance(String filename)

Constructs db file using specified filesystem file.

Parameters:

filename -

temporary

public static DbFile temporary(String prefix,
                               String postfix,
                               boolean deleteOnExit)

Constructs db file using new temporary file.

Parameters:

prefix -

postfix -

deleteOnExit -

exists

public boolean exists()

Check if file already exists

Returns:

checkExistence

public void checkExistence()

Check if file already exists Throws exception if file not exists

delete

public void delete()

Deletes file

inputStream

public InputStream inputStream()

Creates input stream from file

Returns:

InputStream

outputStream

public OutputStream outputStream()

Creates output stream from file

Returns:

OutputStream

randomAccessFile

public RandomAccessFile randomAccessFile()

Creates random access file from file

Returns:

RandomAccessFile

toString

public String toString()

Overrides:

toString in class Object