@Override
public LeftTuple createPeer(LeftTuple original) {
FromNodeLeftTuple peer = new FromNodeLeftTuple();
peer.initPeer((BaseLeftTuple) original, this);
original.setPeer(peer);
return peer;
}
public LeftTuple createPeer(LeftTuple original) {
JoinNodeLeftTuple peer = new JoinNodeLeftTuple();
peer.initPeer((BaseLeftTuple) original, this);
original.setPeer(peer);
return peer;
}