Package it.unimi.dsi.io

Class NullReader

java.lang.Object

java.io.Reader

it.unimi.dsi.io.NullReader

All Implemented Interfaces:

Closeable, Serializable, AutoCloseable, Readable

public class NullReader
extends Reader
implements Serializable

End-of-stream-only reader.

This reader will always return end-of-file on any read attempt.

This class is a singleton. You cannot create a null reader, but you can obtain an instance of this class using getInstance().

Since:

0.9.2

Author:

Sebastiano Vigna

See Also:

• Serialized Form

Field Summary

Fields inherited from class java.io.Reader

lock

Method Summary

Modifier and Type	Method	Description
void	close()
static NullReader	getInstance()	Returns the only instance of this class.
int	read(char[] cbuf, int off, int len)

Methods inherited from class java.io.Reader

mark, markSupported, nullReader, read, read, read, ready, reset, skip, transferTo

Methods inherited from class java.lang.Object

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

Method Details

getInstance

public static NullReader getInstance()

Returns the only instance of this class.

Returns:

the only instance of this class.

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in class Reader

read

public int read(char[] cbuf,
 int off,
 int len)

Specified by:

read in class Reader