Class Overview
The GZIPOutputStream class is used to write data to a stream in the
GZIP storage format.
Summary
| Fields |
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protected
CRC32 |
crc |
The checksum algorithm used when treating uncompressed data. |
| Public Methods |
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void
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finish()
Indicates to the stream that all data has been written out, and any GZIP
terminal data can now be written.
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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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[Expand]
Inherited Methods |
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From class java.util.zip.DeflaterOutputStream
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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
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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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write(int i)
Writes one byte to the target 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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From class java.io.FilterOutputStream
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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)
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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void
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write(byte[] buffer, int offset, int count)
Writes count bytes from the byte array buffer starting at
offset to the target stream.
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From class java.io.OutputStream
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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)
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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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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From class java.lang.Object
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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 o)
Compares this instance with the specified object and indicates if they
are equal.
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void
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finalize()
Is called before the object's memory is being reclaimed by the VM.
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final
Class<? extends Object>
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getClass()
Returns the unique instance of Class which represents this
object's class. |
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int
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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
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toString()
Returns a string containing a concise, human-readable description of this
object.
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final
void
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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
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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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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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From interface java.io.Closeable
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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
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abstract
void
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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)
Compresses nbytes of data from buf starting at
off and writes it to the underlying stream.
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. |
