CheckedOutputStream (Java 2 Platform SE 5.0) (original) (raw)

java.util.zip

Class CheckedOutputStream

java.lang.Object extended by java.io.OutputStream java.io.FilterOutputStream java.util.zip.CheckedOutputStream

All Implemented Interfaces:

public class CheckedOutputStream

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.

See Also:

Checksum

Field Summary

Fields inherited from class java.io.FilterOutputStream
out

Constructor Summary
[CheckedOutputStream](../../../java/util/zip/CheckedOutputStream.html#CheckedOutputStream%28java.io.OutputStream, java.util.zip.Checksum%29)(OutputStream out,Checksum cksum) Creates an output stream with the specified Checksum.

Method Summary
Checksum	getChecksum() Returns the Checksum for this output stream.
void	[write](../../../java/util/zip/CheckedOutputStream.html#write%28byte[], int, int%29)(byte[] b, int off, int len) Writes an array of bytes.
void	write(int b) Writes a byte.

Methods inherited from class java.io.FilterOutputStream
close, flush, write

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, [wait](../../../java/lang/Object.html#wait%28long, int%29)

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](../../../java/io/FilterOutputStream.html#write%28int%29) in class [FilterOutputStream](../../../java/io/FilterOutputStream.html "class in java.io")

Parameters:

b - the byte to be written

Throws:

[IOException](../../../java/io/IOException.html "class in java.io") - 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](../../../java/io/FilterOutputStream.html#write%28byte[], int, int%29) in class [FilterOutputStream](../../../java/io/FilterOutputStream.html "class in java.io")

Parameters:

b - the data to be written

off - the start offset of the data

len - the number of bytes to be written

Throws:

[IOException](../../../java/io/IOException.html "class in java.io") - 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

Submit a bug or feature
For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.