Class Overview
This class implements a stream filter for writing compressed data in
the GZIP file format.
Summary
Fields |
protected
CRC32 |
crc |
CRC-32 of uncompressed data. |
Public Methods |
void
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finish()
Finishes writing compressed data to the output stream without closing
the underlying stream.
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synchronized
void
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write(byte[] buf, int off, int len)
Writes array of bytes to the compressed output stream.
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[Expand]
Inherited Methods |
From class
java.util.zip.DeflaterOutputStream
void
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close()
Writes remaining compressed data to the output stream and closes the
underlying stream.
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void
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deflate()
Writes next block of compressed data to the output stream.
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void
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finish()
Finishes writing compressed data to the output stream without closing
the underlying stream.
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void
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write(byte[] b, int off, int len)
Writes an array of bytes to the compressed output stream.
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void
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write(int b)
Writes a byte to the compressed output stream.
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From class
java.io.FilterOutputStream
void
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close()
Closes this output stream and releases any system resources
associated with the stream.
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void
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flush()
Flushes this output stream and forces any buffered output bytes
to be written out to the stream.
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void
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write(byte[] b, int off, int len)
Writes len bytes from the specified
byte array starting at offset off to
this output stream.
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void
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write(byte[] b)
Writes b.length bytes to this output stream.
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void
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write(int b)
Writes the specified byte to this output stream.
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From class
java.io.OutputStream
void
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close()
Closes this output stream and releases any system resources
associated with this stream.
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void
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flush()
Flushes this output stream and forces any buffered output bytes
to be written out.
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void
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write(byte[] b, int off, int len)
Writes len bytes from the specified byte array
starting at offset off to this output stream.
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void
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write(byte[] b)
Writes b.length bytes from the specified byte array
to this output stream.
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abstract
void
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write(int b)
Writes the specified byte to this output stream.
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From class
java.lang.Object
Object
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clone()
Creates and returns a copy of this object.
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boolean
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equals(Object obj)
Indicates whether some other object is "equal to" this one.
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void
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finalize()
Called by the garbage collector on an object when garbage collection
determines that there are no more references to the object.
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final
Class<?>
|
getClass()
Returns the runtime class of this Object .
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int
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hashCode()
Returns a hash code value for the object.
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final
void
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notify()
Wakes up a single thread that is waiting on this object's
monitor.
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final
void
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notifyAll()
Wakes up all threads that are waiting on this object's monitor.
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String
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toString()
Returns a string representation of the object.
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final
void
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wait()
Causes the current thread to wait until another thread invokes the
notify() method or the
notifyAll() method for this object.
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final
void
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wait(long timeout, int nanos)
Causes the current thread to wait until another thread invokes the
notify() method or the
notifyAll() method for this object, or
some other thread interrupts the current thread, or a certain
amount of real time has elapsed.
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final
void
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wait(long timeout)
Causes the current thread to wait until either another thread invokes the
notify() method or the
notifyAll() method for this object, or a
specified amount of time has elapsed.
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From interface
java.io.Closeable
abstract
void
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close()
Closes this stream and releases any system resources associated
with it.
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From interface
java.io.Flushable
abstract
void
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flush()
Flushes this stream by writing any buffered output to the underlying
stream.
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Fields
protected
CRC32
crc
CRC-32 of uncompressed data.
Public Constructors
public
GZIPOutputStream
(OutputStream out, int size)
Creates a new output stream with the specified buffer size.
Parameters
out
| the output stream |
size
| the output buffer size |
public
GZIPOutputStream
(OutputStream out)
Creates a new output stream with a default buffer size.
Public Methods
public
void
finish
()
Finishes writing compressed data to the output stream without closing
the underlying stream. Use this method when applying multiple filters
in succession to the same output stream.
public
synchronized
void
write
(byte[] buf, int off, int len)
Writes array of bytes to the compressed output stream. This method
will block until all the bytes are written.
Parameters
buf
| the data to be written |
off
| the start offset of the data |
len
| the length of the data |