org.at4j.zip.comp

Class Reduced3CompressionMethod

java.lang.Object

org.at4j.zip.comp.AbstractUnsupportedCompressionMethod

org.at4j.zip.comp.Reduced3CompressionMethod

All Implemented Interfaces:

ZipEntryCompressionMethod, ZipEntryCompressionMethodFactory

public class Reduced3CompressionMethod
extends AbstractUnsupportedCompressionMethod
implements ZipEntryCompressionMethodFactory

This is the "Reduced3" compression method. It is currently not supported.

This class cannot be instantiated. Use the singleton instance INSTANCE instead.

Since:

1.0

Author:

Karl Gustafsson

Field Summary

Fields

Modifier and Type	Field and Description
static UnsignedShort	CODE The unique code for this compression method.
static Reduced3CompressionMethod	INSTANCE Singleton instance.
static String	NAME
static UnsignedShort	VERSION_NEEDED_TO_EXTRACT The PK-Zip version needed to extract entries compressed with this compression method.

Method Summary

Methods

Modifier and Type	Method and Description
Reduced3CompressionMethod	create(ZipGeneralPurposeBitFlags gbBitFlags) Create a compression method instance.
UnsignedShort	getCode() Get the unique code identifying this compression method.
String	getName() Get a human-readable name for the compression method.
UnsignedShort	getVersionNeededToExtract() Get the PK-Zip version needed to extract Zip entries compressed by this compression method.
String	toString()

Methods inherited from class org.at4j.zip.comp.AbstractUnsupportedCompressionMethod

createInputStream, createOutputStream, createRandomAccess, createWithCompressionLevel, isRandomAccessSupported

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

CODE

public static final UnsignedShort CODE

The unique code for this compression method. The code is used in the Zip entry's header to specify the compression method that is used for compressing the entry's file data.

NAME

public static final String NAME

See Also:

Constant Field Values

VERSION_NEEDED_TO_EXTRACT

public static final UnsignedShort VERSION_NEEDED_TO_EXTRACT

The PK-Zip version needed to extract entries compressed with this compression method. See ZipEntryCompressionMethod.getVersionNeededToExtract().

INSTANCE

public static final Reduced3CompressionMethod INSTANCE

Singleton instance. This is used instead of instantiating this class.

Method Detail

getCode

public UnsignedShort getCode()

Description copied from interface: ZipEntryCompressionMethodFactory

Get the unique code identifying this compression method.

Specified by:

getCode in interface ZipEntryCompressionMethod

Specified by:

getCode in interface ZipEntryCompressionMethodFactory

Returns:

The unique code identifying this compression method.

getName

public String getName()

Description copied from interface: ZipEntryCompressionMethod

Get a human-readable name for the compression method.

Specified by:

getName in interface ZipEntryCompressionMethod

Returns:

The compression method's name.

getVersionNeededToExtract

public UnsignedShort getVersionNeededToExtract()

Description copied from interface: ZipEntryCompressionMethod

Get the PK-Zip version needed to extract Zip entries compressed by this compression method.

Specified by:

getVersionNeededToExtract in interface ZipEntryCompressionMethod

Returns:

An UnsignedShort representing the version number. 10 corresponds to version 1.0, 62 to 6.2, etc.

create

public Reduced3CompressionMethod create(ZipGeneralPurposeBitFlags gbBitFlags)

Description copied from interface: ZipEntryCompressionMethodFactory

Create a compression method instance.

Specified by:

create in interface ZipEntryCompressionMethodFactory

Parameters:

gbBitFlags - The Zip entry's general purpose bit flags. They may contain compression algorithm parameters.

Returns:

The Zip entry compression method.

toString

public String toString()

Overrides:

toString in class Object