Package nl.tue.storage.compressor

Class ByteListCompressor

java.lang.Object

nl.tue.storage.compressor.AbstractFixedLengthListCompressor<java.lang.Byte>

nl.tue.storage.compressor.ByteListCompressor

All Implemented Interfaces:

Deflater<java.util.List<java.lang.Byte>>, EqualOperation<java.util.List<java.lang.Byte>>, HashOperation<java.util.List<java.lang.Byte>>, Inflater<java.util.List<java.lang.Byte>>

public class ByteListCompressor
extends AbstractFixedLengthListCompressor<java.lang.Byte>

Nested Class Summary

Nested classes/interfaces inherited from interface nl.tue.storage.EqualOperation

EqualOperation.Default<K>

Nested classes/interfaces inherited from interface nl.tue.storage.HashOperation

HashOperation.Default<K>

Field Summary

Fields inherited from class nl.tue.storage.compressor.AbstractFixedLengthListCompressor

length

Constructor Summary

Constructors

Constructor	Description
ByteListCompressor(int length)

Method Summary

Modifier and Type	Method	Description
protected java.lang.Byte	fromByteArray(byte[] bytes)	reads an object of type K from an array of bytes of size numBytes()
int	getMaxByteCount()	the method is called before each call to deflate.
protected boolean	isZero(java.lang.Byte number)	Indicates if the given number equals 0
protected java.lang.Byte[]	newEmptyArray(int length)	Instantiates a new array of the given length, such that for all elements, isZero() returns true.
protected int	numBytes()	returns the number of bytes for storing one object of type K
protected byte[]	toByteArray(java.lang.Byte number)	writes an object of type K to an array of bytes, of size numBytes();

Methods inherited from class nl.tue.storage.compressor.AbstractFixedLengthListCompressor

deflate, deflateHead, equals, getBitMask, getHashCode, getHashCode, inflate, inflateContent, readMask

Methods inherited from class java.lang.Object

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

Constructor Detail

ByteListCompressor

public ByteListCompressor(int length)

Method Detail

isZero

protected boolean isZero(java.lang.Byte number)

Description copied from class: AbstractFixedLengthListCompressor

Indicates if the given number equals 0

Specified by:

isZero in class AbstractFixedLengthListCompressor<java.lang.Byte>

Returns:

numBytes

protected int numBytes()

Description copied from class: AbstractFixedLengthListCompressor

returns the number of bytes for storing one object of type K

Specified by:

numBytes in class AbstractFixedLengthListCompressor<java.lang.Byte>

Returns:

toByteArray

protected byte[] toByteArray(java.lang.Byte number)

Description copied from class: AbstractFixedLengthListCompressor

writes an object of type K to an array of bytes, of size numBytes();

Specified by:

toByteArray in class AbstractFixedLengthListCompressor<java.lang.Byte>

Returns:

fromByteArray

protected java.lang.Byte fromByteArray(byte[] bytes)

Description copied from class: AbstractFixedLengthListCompressor

reads an object of type K from an array of bytes of size numBytes()

Specified by:

fromByteArray in class AbstractFixedLengthListCompressor<java.lang.Byte>

Returns:

newEmptyArray

protected java.lang.Byte[] newEmptyArray(int length)

Description copied from class: AbstractFixedLengthListCompressor

Instantiates a new array of the given length, such that for all elements, isZero() returns true.

Specified by:

newEmptyArray in class AbstractFixedLengthListCompressor<java.lang.Byte>

Returns:

getMaxByteCount

public int getMaxByteCount()

Description copied from interface: Deflater

the method is called before each call to deflate. The call to deflate should not write more than the number of bytes returned by this method! It may write less. If a negative value is returned, then a resizeable buffer is used

Returns: