/*
* 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.value;
import java.util.Arrays;
import org.h2.engine.CastDataProvider;
import org.h2.engine.Constants;
import org.h2.message.DbException;
import org.h2.util.Bits;
import org.h2.util.StringUtils;
import org.h2.util.Utils;
/**
* Base implementation of byte array based data types.
*/
abstract class ValueBytesBase extends Value {
/**
* The value.
*/
byte[] value;
/**
* The hash code.
*/
int hash;
ValueBytesBase(byte[] value) {
int length = value.length;
if (length > Constants.MAX_STRING_LENGTH) {
throw DbException.getValueTooLongException(getTypeName(getValueType()),
StringUtils.convertBytesToHex(value, 41), length);
}
this.value = value;
}
@Override
public final byte[] getBytes() {
return Utils.cloneByteArray(value);
}
@Override
public final byte[] getBytesNoCopy() {
return value;
}
@Override
public final int compareTypeSafe(Value v, CompareMode mode, CastDataProvider provider) {
return Bits.compareNotNullUnsigned(value, ((ValueBytesBase) v).value);
}
@Override
public StringBuilder getSQL(StringBuilder builder, int sqlFlags) {
return StringUtils.convertBytesToHex(builder.append("X'"), value).append('\'');
}
@Override
public final int hashCode() {
int h = hash;
if (h == 0) {
h = getClass().hashCode() ^ Utils.getByteArrayHash(value);
if (h == 0) {
h = 1_234_570_417;
}
hash = h;
}
return h;
}
@Override
public int getMemory() {
return value.length + 24;
}
@Override
public final boolean equals(Object other) {
return other != null && getClass() == other.getClass() && Arrays.equals(value, ((ValueBytesBase) other).value);
}
}