CheckedOutputStream

public class CheckedOutputStream
extends FilterOutputStream

java.lang.Object
   ↳ java.io.OutputStream
     ↳ java.io.FilterOutputStream
       ↳ java.util.zip.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:

Summary

Inherited fields

protected OutputStream out

The underlying output stream to be filtered.

Public constructors

CheckedOutputStream(OutputStream out, Checksum cksum)

Creates an output stream with the specified Checksum.

Public methods

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.

Inherited methods

void close()

Closes this output stream and releases any system resources associated with the stream.

void flush()

Flushes this output stream and forces any buffered output bytes to be written out to the stream.

void write(byte[] b)

Writes b.length bytes to this output stream.

void write(byte[] b, int off, int len)

Writes len bytes from the specified byte array starting at offset off to this output stream.

void write(int b)

Writes the specified byte to this output stream.

void close()

Closes this output stream and releases any system resources associated with this stream.

void flush()

Flushes this output stream and forces any buffered output bytes to be written out.

static OutputStream nullOutputStream()

Returns a new OutputStream which discards all bytes.

void write(byte[] b)

Writes b.length bytes from the specified byte array to this output stream.

void write(byte[] b, int off, int len)

Writes len bytes from the specified byte array starting at offset off to this output stream.

abstract void write(int b)

Writes the specified byte to this output stream.

Object clone()

Creates and returns a copy of this object.

boolean equals(Object obj)

Indicates whether some other object is "equal to" this one.

void finalize()

Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.

final Class<?> getClass()

Returns the runtime class of this Object.

int hashCode()

Returns a hash code value for the object.

final void notify()

Wakes up a single thread that is waiting on this object's monitor.

final void notifyAll()

Wakes up all threads that are waiting on this object's monitor.

String toString()

Returns a string representation of the object.

final void wait(long timeoutMillis, int nanos)

Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

final void wait(long timeoutMillis)

Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

final void wait()

Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

abstract void close()

Closes this stream and releases any system resources associated with it.

abstract void flush()

Flushes this stream by writing any buffered output to the underlying stream.

abstract void close()

Closes this resource, relinquishing any underlying resources.

Public constructors

CheckedOutputStream

Added in API level 1
public CheckedOutputStream (OutputStream out, 
                Checksum cksum)

Creates an output stream with the specified Checksum.

Parameters
out OutputStream: the output stream

cksum Checksum: the checksum

Public methods

getChecksum

Added in API level 1
public Checksum getChecksum ()

Returns the Checksum for this output stream.

Returns
Checksum the Checksum

write

Added in API level 1
public void write (byte[] b, 
                int off, 
                int len)

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

Parameters
b byte: the data to be written

off int: the start offset of the data

len int: the number of bytes to be written

Throws
IOException if an I/O error has occurred

write

Added in API level 1
public void write (int b)

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

Parameters
b int: the byte to be written

Throws
IOException if an I/O error has occurred