Imported existing code

indra/llcommon/metaproperty.h

@@ -0,0 +1,79 @@
+/** 
+ * @file metaproperty.h
+ * @author Babbage
+ * @date 2006-05-15
+ * @brief Reflective meta information describing a property of a class.
+ *
+ * $LicenseInfo:firstyear=2006&license=viewergpl$
+ * 
+ * Copyright (c) 2006-2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_METAPROPERTY_H
+#define LL_METAPROPERTY_H
+
+#include "stdtypes.h"
+#include "llsd.h"
+#include "reflective.h"
+
+class LLMetaClass;
+class LLReflective;
+class LLMetaProperty
+{
+public:
+	LLMetaProperty(const std::string& name, const LLMetaClass& object_class);
+  virtual ~LLMetaProperty();
+  
+  // Get property name.
+  const std::string& getName() const {return mName;}
+
+  // Get value of this property.
+  virtual const LLReflective* get(const LLReflective* object) const = 0;
+  
+  // Set value of this property.
+  // virtual void set(LLReflective* object, const LLReflective* value) = 0;
+  
+  // Get value of this property as LLSD. Default returns undefined LLSD.
+  virtual LLSD getLLSD(const LLReflective* object) const = 0;
+  
+  // Get the MetaClass of legal values of this property.
+  // const LLMetaClass& getValueMetaClass();
+  
+  // Get the meta class that this property is a member of.
+  const LLMetaClass& getObjectMetaClass() const;
+
+protected:
+
+  // Check object is instance of object class, throw exception if not.
+  void checkObjectClass(const LLReflective* object) const;
+
+private:
+
+	std::string mName;
+	const LLMetaClass& mObjectClass;
+};
+
+#endif // LL_METAPROPERTY_H