public void updateSink(
      final ObjectSink sink,
      final PropagationContext context,
      final InternalWorkingMemory workingMemory) {
    BetaNode betaNode = (BetaNode) this.sink.getSinks()[0];

    Memory betaMemory = workingMemory.getNodeMemory(betaNode);
    BetaMemory bm;
    if (betaNode.getType() == NodeTypeEnums.AccumulateNode) {
      bm = ((AccumulateMemory) betaMemory).getBetaMemory();
    } else {
      bm = (BetaMemory) betaMemory;
    }

    // for RIA nodes, we need to store the ID of the created handles
    bm.getRightTupleMemory().iterator();
    if (bm.getRightTupleMemory().size() > 0) {
      final org.drools.core.util.Iterator it = bm.getRightTupleMemory().iterator();
      for (RightTuple entry = (RightTuple) it.next();
          entry != null;
          entry = (RightTuple) it.next()) {
        LeftTuple leftTuple = (LeftTuple) entry.getFactHandle().getObject();
        InternalFactHandle handle = (InternalFactHandle) leftTuple.getObject();
        sink.assertObject(handle, context, workingMemory);
      }
    }
  }