Tidy up OrderBook

src/cpp/ripple/ripple_OrderBook.h

@@ -0,0 +1,50 @@
+#ifndef RIPPLE_ORDERBOOK_H
+#define RIPPLE_ORDERBOOK_H
+
+/** Describes a serialized ledger entry for an order book.
+*/
+class OrderBook
+{
+public:
+	typedef boost::shared_ptr <OrderBook> pointer;
+
+    typedef boost::shared_ptr <OrderBook> const& ref;
+
+public:
+    /** Construct from a currency specification.
+
+        @param index ???
+        @param currencyIn  The base currency.
+        @param currencyOut The destination currency.
+        @param issuerIn    The base issuer.
+        @param issuerOut   The destination issuer.
+    */
+    // VFALCO NOTE what is the meaning of the index parameter?
+    // VFALCO TODO group the issuer and currency parameters together.
+    // VFALCO TODO give typedef names to uint256 / uint160 params
+	OrderBook (uint256 const& index,
+               uint160 const& currencyIn,
+               uint160 const& currencyOut,
+               uint160 const& issuerIn,
+               uint160 const& issuerOut);
+
+	uint256 const& getBookBase () const;
+	
+    uint160 const& getCurrencyIn () const;
+	
+    uint160 const& getCurrencyOut () const;
+	
+    uint160 const& getIssuerIn () const;
+
+    uint160 const& getIssuerOut () const;
+
+
+private:
+	uint256 const mBookBase;
+	uint160 const mCurrencyIn;
+	uint160 const mCurrencyOut;
+	uint160 const mIssuerIn;
+	uint160 const mIssuerOut;
+};
+
+#endif