org.apache.lucene.codecs.compressing

Class Decompressor

java.lang.Object

org.apache.lucene.codecs.compressing.Decompressor

All Implemented Interfaces:

java.lang.Cloneable

public abstract class Decompressor
extends java.lang.Object
implements java.lang.Cloneable

A decompressor.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Decompressor() Sole constructor, typically called from sub-classes.

Method Summary

Modifier and Type	Method and Description
abstract Decompressor	clone()
abstract void	decompress(DataInput in, int originalLength, int offset, int length, BytesRef bytes) Decompress bytes that were stored between offsets offset and offset+length in the original stream from the compressed stream in to bytes.

Methods inherited from class java.lang.Object

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

Constructor Detail

Decompressor

protected Decompressor()

Sole constructor, typically called from sub-classes.

Method Detail

decompress

public abstract void decompress(DataInput in,
                                int originalLength,
                                int offset,
                                int length,
                                BytesRef bytes)
                         throws java.io.IOException

Decompress bytes that were stored between offsets offset and offset+length in the original stream from the compressed stream in to bytes. After returning, the length of bytes (bytes.length) must be equal to length. Implementations of this method are free to resize bytes depending on their needs.

Parameters:

in - the input that stores the compressed stream

originalLength - the length of the original data (before compression)

offset - bytes before this offset do not need to be decompressed

length - bytes after offset+length do not need to be decompressed

bytes - a BytesRef where to store the decompressed data

Throws:

java.io.IOException

clone

public abstract Decompressor clone()

Overrides:

clone in class java.lang.Object