@Override
public void readExternal(final ObjectInput in) throws IOException, ClassNotFoundException {
nodeSource = in.readUTF();
databaseName = in.readUTF();
runId = in.readLong();
operationSerial = in.readLong();
mode = EXECUTION_MODE.values()[in.readByte()];
status = STATUS.values()[in.readByte()];
}
@Override
public void writeExternal(final ObjectOutput out) throws IOException {
out.writeUTF(nodeSource);
out.writeUTF(databaseName);
out.writeLong(runId);
out.writeLong(operationSerial);
out.writeByte(mode.ordinal());
out.writeByte(status.ordinal());
}