1 files changed, 69 insertions, 0 deletions

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+#ifndef ORDER_H_0EC669D5
+#define ORDER_H_0EC669D5
+
+#include <stdexcept>
+#include "field.h"
+
+namespace verbly {
+
+  class order {
+  public:
+    enum class type {
+      random,
+      field
+    };
+
+    // Type
+
+    type getType() const
+    {
+      return type_;
+    }
+
+    // Random
+
+    order() : type_(type::random)
+    {
+    }
+
+    // Field
+
+    order(
+      field arg,
+      bool asc = true) :
+        type_(type::field),
+        sortField_(std::move(arg)),
+        ascending_(asc)
+    {
+    }
+
+    field getSortField() const
+    {
+      if (type_ != type::field)
+      {
+        throw std::domain_error("Invalid access to non-field order");
+      }
+
+      return sortField_;
+    }
+
+    bool isAscending() const
+    {
+      if (type_ != type::field)
+      {
+        throw std::domain_error("Invalid access to non-field order");
+      }
+
+      return ascending_;
+    }
+
+  private:
+    type type_;
+    field sortField_;
+    bool ascending_;
+
+  };
+
+};
+
+#endif /* end of include guard: ORDER_H_0EC669D5 */