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## SpaceTime.DataModel.VendorOrders
Interface OrderChange

    public interface OrderChange

Represents the short form of an order that is used in Order Cancellations, Placements and Changes. Passed by reference

Author:
  Kostya

Method Summary
`OrderBase` | `NewOrder()` New order, null value represents order cancellation
`void` | `NewOrder(OrderBase value)`
`OrderBase` | `OldOrder()` Old order, null value represents order placement
`void` | `OldOrder(OrderBase value)`
`double` | `Utility()` Change utility
`void` | `Utility(double value)`

Method Detail

### Utility

    double Utility()

  Change utility

  Returns:

### Utility

    void Utility(double value)

### OldOrder

    OrderBase OldOrder()

  Old order, null value represents order placement

  Returns:

### OldOrder

    void OldOrder(OrderBase value)

### NewOrder

    OrderBase NewOrder()

  New order, null value represents order cancellation

  Returns:

### NewOrder

    void NewOrder(OrderBase value)

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