package org.deuce.transaction.strongiso.field;
import java.util.concurrent.atomic.AtomicInteger;
import org.deuce.reflection.UnsafeHolder;
import org.deuce.transform.Exclude;
@Exclude
public class ByteWriteFieldAccess extends WriteFieldAccess {
private byte value;
private byte oldValue;
public ByteWriteFieldAccess(byte value, Object reference, long orgField,
long field, AtomicInteger status, boolean isNT, int threadId) {
super(reference, orgField, field, status, isNT, threadId);
this.value = value;
}
public byte getValue() {
return value;
}
public byte getOldValue() {
return oldValue;
}
@Override
public void setLast(WriteFieldAccess last, boolean useOld) {
if (useOld)
oldValue = ((ByteWriteFieldAccess) last).oldValue;
else
oldValue = ((ByteWriteFieldAccess) last).value;
}
@Override
public void setLast() {
oldValue = UnsafeHolder.getUnsafe().getByte(reference, orgField);
}
@Override
public boolean validateByValue(WriteFieldAccess other, boolean useOld) {
if (useOld)
return ((ByteWriteFieldAccess) other).getOldValue() == (this.status
.get() == TransStatus.COMMITTED ? value : oldValue);
else
return ((ByteWriteFieldAccess) other).getValue() == (this.status
.get() == TransStatus.COMMITTED ? value : oldValue);
}
}