Deflater

Upper bound for the compression level range.

Lower bound for compression level range.

Usage of the default compression level.

Default value for compression strategy.

Default value for compression method.

Possible value for compression strategy.

Possible value for compression strategy.

Possible value for compression level.

Constructs a new Deflater instance with default compression level. The strategy can be specified with setStrategy(int), only. A header is added to the output by default; use constructor Deflater(level, boolean) if you need to omit the header.

Constructs a new Deflater instance with a specific compression level. The strategy can be specified with setStrategy, only. A header is added to the output by default; use Deflater(level, boolean) if you need to omit the header.

Constructs a new Deflater instance with a specific compression level. If noHeader is passed as true no ZLib header is added to the output. In a ZIP archive every entry (compressed file) comes with such a header. The strategy can be specified with the setStrategy method, only.

Deflates the data (previously passed to setInput) into the supplied buffer.

Deflates data (previously passed to setInput) into a specific region within the supplied buffer.

Frees all resources held onto by this deflating algorithm. Any unused input or output is discarded. While this method is used by finalize(), it can be called explicitly in order to free native resources before the next GC cycle. After end() was called other methods will typically throw an IllegalStateException.

Indicates to the Deflater that all uncompressed input has been provided to it.

Returns whether or not all provided data has been successfully compressed.

Returns the Adler32 checksum of uncompressed data currently read. If a preset dictionary is used getAdler() will return the Adler32 checksum of the dictionary used.

Returns a long int of total number of bytes read by the Deflater. This method performs the same as getTotalIn except it returns a long value instead of an integer

Returns a long int of total number of bytes of read by the Deflater. This method performs the same as getTotalOut except it returns a long value instead of an integer

Returns the total number of bytes of input consumed by the Deflater.

Returns the total number of compressed bytes output by this Deflater.

Counterpart to setInput(). Indicates whether or not all bytes of uncompressed input have been consumed by the Deflater. If needsInput() returns true setInput() must be called before deflation can continue. If all bytes of uncompressed data have been provided to the Deflater finish() must be called to ensure the compressed data is output.

Resets the Deflater to accept new input without affecting any previously made settings for the compression strategy or level. This operation must be called after finished() returns true if the Deflater is to be reused.

Sets the dictionary to be used for compression by this Deflater. setDictionary() can only be called if this Deflater supports the writing of ZLIB headers. This is the default behaviour but can be overridden using Deflater(int, boolean).

Sets the dictionary to be used for compression by this Deflater. setDictionary() can only be called if this Deflater supports the writing of ZLIB headers. This is the default behaviour but can be overridden using Deflater(int, boolean).

Sets the input buffer the Deflater will use to extract uncompressed bytes for later compression. Input will be taken from the buffer region starting at off and ending at nbytes - 1.

Sets the input buffer the Deflater will use to extract uncompressed bytes for later compression.

Sets the compression level to be used when compressing data. The compression level must be a value between 0 and 9. This value must be set prior to calling setInput().

Sets the compression strategy to be used. The strategy must be one of FILTERED, HUFFMAN_ONLY or DEFAULT_STRATEGY.This value must be set prior to calling setInput().

Is called before the object's memory is being reclaimed by the VM. This can only happen once the VM has detected, during a run of the garbage collector, that the object is no longer reachable by any thread of the running application.

The method can be used to free system resources or perform other cleanup before the object is garbage collected. The default implementation of the method is empty, which is also expected by the VM, but subclasses can override finalize() as required. Uncaught exceptions which are thrown during the execution of this method cause it to terminate immediately but are otherwise ignored.

Note that the VM does guarantee that finalize() is called at most once for any object, but it doesn't guarantee when (if at all) finalize() will be called. For example, object B's finalize() can delay the execution of object A's finalize() method and therefore it can delay the reclamation of A's memory. To be safe, use a ReferenceQueue, because it provides more control over the way the VM deals with references during garbage collection.