Module kala.compress.compressors.pack200

Package kala.compress.java.util.jar

Class Pack200

java.lang.Object

kala.compress.java.util.jar.Pack200

public abstract class Pack200
extends Object

Class factory for Pack200.Packer and Pack200.Unpacker.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	Pack200.Packer	The interface defining the API for converting a JAR file to an output stream in the Pack200 format.
static interface	Pack200.Unpacker	The interface defining the API for converting a packed stream in the Pack200 format to a JAR file.

Field Summary

Fields

Modifier and Type	Field	Description
private static final String	SYSTEM_PROPERTY_PACKER	System property key.
private static final String	SYSTEM_PROPERTY_UNPACKER	System property key.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Pack200()	Prevents this class from being instantiated.

Method Summary

Modifier and Type	Method	Description
(package private) static Object	newInstance(String systemProperty, String defaultClassName)
static Pack200.Packer	newPacker()	Returns a new instance of a packer engine.
static Pack200.Unpacker	newUnpacker()	Returns a new instance of an unpacker engine.

Methods inherited from class java.lang.Object

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

Field Details

SYSTEM_PROPERTY_PACKER

private static final String SYSTEM_PROPERTY_PACKER

System property key.

See Also:

• Constant Field Values

SYSTEM_PROPERTY_UNPACKER

private static final String SYSTEM_PROPERTY_UNPACKER

System property key.

See Also:

• Constant Field Values

Constructor Details

Pack200

private Pack200()

Prevents this class from being instantiated.

Method Details

newInstance

static Object newInstance(String systemProperty,
 String defaultClassName)

newPacker

public static Pack200.Packer newPacker()

Returns a new instance of a packer engine.

The implementation of the packer engine is defined by the system property 'java.util.jar.Pack200.Packer'. If this system property is defined an instance of the specified class is returned, otherwise the system's default implementation is returned.

Returns:

an instance of Packer

newUnpacker

public static Pack200.Unpacker newUnpacker()

Returns a new instance of an unpacker engine.

The implementation of the unpacker engine is defined by the system property Pack200.Unpacker. If this system property is defined an instance of the specified class is returned, otherwise the system's default implementation is returned.

Returns:

an instance of Pack200.Unpacker.