1 files changed, 12 insertions, 0 deletions
diff --git a/packages/order-utils/src/abstract/abstract_order_filled_cancelled_lazy_store.ts b/packages/order-utils/src/abstract/abstract_order_filled_cancelled_lazy_store.ts
new file mode 100644
index 000000000..617bcb224
--- /dev/null
+++ b/packages/order-utils/src/abstract/abstract_order_filled_cancelled_lazy_store.ts
@@ -0,0 +1,12 @@
+import { BigNumber } from '@0xproject/utils';
+
+export abstract class AbstractOrderFilledCancelledLazyStore {
+    public abstract async getFilledTakerAmountAsync(orderHash: string): Promise<BigNumber>;
+    public abstract async getIsCancelledAsync(orderHash: string): Promise<boolean>;
+    public abstract setFilledTakerAmount(orderHash: string, balance: BigNumber): void;
+    public abstract deleteFilledTakerAmount(orderHash: string): void;
+    public abstract setIsCancelled(orderHash: string, isCancelled: boolean): void;
+    public abstract deleteIsCancelled(orderHash: string): void;
+    public abstract deleteAll(): void;
+    public abstract getZRXAssetData(): string;
+}