/*
* Copyright 2004-2018 H2 Group. Multiple-Licensed under the MPL 2.0,
* and the EPL 1.0 (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.compress;
/**
* This class implements a data compression algorithm that does in fact not
* compress. This is useful if the data can not be compressed because it is
* encrypted, already compressed, or random.
*/
public class
CompressNo implements
Compressor {
@
Override
public int
getAlgorithm() {
return
Compressor.
NO;
}
@
Override
public void
setOptions(
String options) {
// nothing to do
}
@
Override
public int
compress(byte[]
in, int
inLen, byte[]
out, int
outPos) {
System.
arraycopy(
in, 0,
out,
outPos,
inLen);
return
outPos +
inLen;
}
@
Override
public void
expand(byte[]
in, int
inPos, int
inLen, byte[]
out, int
outPos,
int
outLen) {
System.
arraycopy(
in,
inPos,
out,
outPos,
outLen);
}
}