/*
* Copyright 2004-2023 H2 Group. Multiple-Licensed under the MPL 2.0,
* and the EPL 1.0 (https://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 inPos, int inLen, byte[] out, int outPos) {
System.arraycopy(in, inPos, 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);
}
}