Class CheckedOutputStream

All Implemented Interfaces:
Closeable, Flushable, AutoCloseable 
public class CheckedOutputStream
extends FilterOutputStream

An output stream that also maintains a checksum of the data being written. The checksum can then be used to verify the integrity of the output data.

Since:
1.1
See Also:
Checksum

Field Summary

Fields declared in class java.io.FilterOutputStream

out

Constructor Summary

Constructors
Constructor Description
CheckedOutputStream​(OutputStream out, Checksum cksum)

Creates an output stream with the specified Checksum.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type Method Description
Checksum getChecksum()

Returns the Checksum for this output stream.
void write​(byte[] b, int off, int len)

Writes an array of bytes.
void write​(int b)

Writes a byte.

Methods declared in class java.io.FilterOutputStream

close, flush, write

Methods declared in class java.io.OutputStream

nullOutputStream

Methods declared in class java.lang.Object

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

Constructor Detail

CheckedOutputStream

public CheckedOutputStream​(OutputStream out,
                           Checksum cksum)

Creates an output stream with the specified Checksum.

Parameters:
out - the output stream
cksum - the checksum

Method Detail

write

public void write​(int b)
           throws IOException

Writes a byte. Will block until the byte is actually written.

Overrides:
write in class FilterOutputStream
Parameters:
b - the byte to be written
Throws:
IOException - if an I/O error has occurred

write

public void write​(byte[] b,
                  int off,
                  int len)
           throws IOException

Writes an array of bytes. Will block until the bytes are actually written.

Overrides:
write in class FilterOutputStream
Parameters:
b - the data to be written
off - the start offset of the data
len - the number of bytes to be written
Throws:
IOException - if an I/O error has occurred
See Also:
FilterOutputStream.write(int)

getChecksum

public Checksum getChecksum()

Returns the Checksum for this output stream.

Returns:
the Checksum