Class Overview
The GZIPOutputStream
class is used to write data to a stream in the
GZIP storage format.
Summary
Fields |
protected
CRC32 |
crc |
The checksum algorithm used when treating uncompressed data. |
Public Methods |
void
|
finish()
Indicates to the stream that all data has been written out, and any GZIP
terminal data can now be written.
|
void
|
write(byte[] buffer, int off, int nbytes)
Write up to nbytes of data from the given buffer, starting at offset off,
to the underlying stream in GZIP format.
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[Expand]
Inherited Methods |
From class java.util.zip.DeflaterOutputStream
void
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close()
Writes any unwritten compressed data to the underlying stream, the closes
all underlying streams.
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void
|
deflate()
Compress the data in the input buffer and write it to the underlying
stream.
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void
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finish()
Writes any unwritten data to the underlying stream.
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void
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flush()
Flushes the underlying stream.
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void
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write(byte[] buffer, int off, int nbytes)
Compresses nbytes of data from buf starting at
off and writes it to the underlying stream.
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void
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write(int i)
Writes one byte to the target stream.
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From class java.io.FilterOutputStream
void
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close()
Closes this stream.
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void
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flush()
Ensures that all pending data is sent out to the target stream.
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void
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write(byte[] buffer, int offset, int length)
Writes count bytes from the byte array buffer starting at
offset to the target stream.
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void
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write(byte[] buffer)
Writes the entire contents of the byte array buffer to this
stream.
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void
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write(int oneByte)
Writes one byte to the target stream.
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From class java.io.OutputStream
void
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close()
Closes this stream.
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void
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flush()
Flushes this stream.
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void
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write(byte[] buffer, int offset, int count)
Writes count bytes from the byte array buffer starting at
position offset to this stream.
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void
|
write(byte[] buffer)
Writes the entire contents of the byte array buffer to this
stream.
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abstract
void
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write(int oneByte)
Writes a single byte to this stream.
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From class java.lang.Object
Object
|
clone()
Creates and returns a copy of this Object .
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boolean
|
equals(Object o)
Compares this instance with the specified object and indicates if they
are equal.
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void
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finalize()
Called before the object's memory is reclaimed by the VM.
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final
Class<? extends Object>
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getClass()
Returns the unique instance of Class that represents this
object's class.
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int
|
hashCode()
Returns an integer hash code for this object.
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final
void
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notify()
Causes a thread which is waiting on this object's monitor (by means of
calling one of the wait() methods) to be woken up.
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final
void
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notifyAll()
Causes all threads which are waiting on this object's monitor (by means
of calling one of the wait() methods) to be woken up.
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String
|
toString()
Returns a string containing a concise, human-readable description of this
object.
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final
void
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wait()
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object.
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final
void
|
wait(long millis, int nanos)
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the
specified timeout expires.
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final
void
|
wait(long millis)
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the
specified timeout expires.
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From interface java.io.Closeable
abstract
void
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close()
Closes the object and release any system resources it holds.
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From interface java.io.Flushable
abstract
void
|
flush()
Flushes the object by writing out any buffered data to the underlying
output.
|
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Fields
protected
CRC32
crc
The checksum algorithm used when treating uncompressed data.
Public Constructors
public
GZIPOutputStream
(OutputStream os)
Construct a new GZIPOutputStream
to write data in GZIP format to
the underlying stream.
Parameters
os
| the OutputStream to write data to. |
public
GZIPOutputStream
(OutputStream os, int size)
Construct a new GZIPOutputStream
to write data in GZIP format to
the underlying stream. Set the internal compression buffer to size
size
.
Parameters
os
| the OutputStream to write to. |
size
| the internal buffer size. |
Public Methods
public
void
finish
()
Indicates to the stream that all data has been written out, and any GZIP
terminal data can now be written.
public
void
write
(byte[] buffer, int off, int nbytes)
Write up to nbytes of data from the given buffer, starting at offset off,
to the underlying stream in GZIP format.
Parameters
buffer
| the buffer of data to compress. |
off
| offset in buffer to extract data from. |
nbytes
| the number of bytes of data to read from the buffer. |