org.nuiton.util

Class ReverseFileReader

java.lang.Object

org.nuiton.util.ReverseFileReader

All Implemented Interfaces:

Closeable, AutoCloseable

public class ReverseFileReader
extends Object
implements Closeable

Reverse file reader. Read file line by line for end of file to begin of file.

Author:

chatellier

Field Summary

Fields

Modifier and Type	Field and Description
protected String	filename
protected long	position
protected RandomAccessFile	randomfile

Constructor Summary

Constructors

Constructor and Description
ReverseFileReader(File file)
ReverseFileReader(String filename)

Method Summary

Modifier and Type	Method and Description
void	close()
protected void	finalize()
String	readLine() Read one line from the current position towards the beginning.

Methods inherited from class java.lang.Object

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

Field Detail

filename

protected String filename

randomfile

protected RandomAccessFile randomfile

position

protected long position

Constructor Detail

ReverseFileReader

public ReverseFileReader(File file)
                  throws IOException

Throws:

IOException

ReverseFileReader

public ReverseFileReader(String filename)
                  throws IOException

Throws:

IOException

Method Detail

readLine

public String readLine()
                throws IOException

Read one line from the current position towards the beginning.

Returns:

the next line of text from this file, or null if end of file is encountered before even one byte is read.

Throws:

IOException - if any pb while reading line

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException

finalize

protected void finalize()
                 throws Throwable

Overrides:

finalize in class Object

Throws:

Throwable