# Item.hpp

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    00001 /*
    00002  * Copyright (c) 2001-2006
    00003  *     DecisionSoft Limited. All rights reserved.
    00004  * Copyright (c) 2004-2006
    00005  *     Progress Software Corporation. All rights reserved.
    00006  * Copyright (c) 2004-2006
    00007  *     Oracle. All rights reserved.
    00008  *
    00009  * See the file LICENSE for redistribution information.
    00010  *
    00011  * $Id: Item.hpp,v 1.7 2006/11/01 16:37:14 jpcs Exp $
    00012  */
    00013
    00014 #ifndef _ITEM_HPP
    00015 #define _ITEM_HPP
    00016
    00017 #include <xqilla/framework/XQillaExport.hpp>
    00018 #include <xqilla/framework/ReferenceCounted.hpp>
    00019 #include <xercesc/util/XercesDefs.hpp>
    00020
    00021 // forward declare when we can
    00022 class XPath2MemoryManager;
    00023 class DynamicContext;
    00024
    00025 class XQILLA_API Item : public ReferenceCounted
    00026 {
    00027 public:
    00028   typedef RefCountPointer<const Item> Ptr;
    00029
    00031   static const XMLCh gXQilla[];
    00032
    00033   virtual bool isNode() const = 0;
    00034
    00035   virtual bool isAtomicValue() const = 0;
    00036
    00037   virtual const XMLCh* asString(const DynamicContext* context) const = 0;
    00038
    00039   virtual const XMLCh* getTypeURI() const = 0;
    00040
    00041   virtual const XMLCh* getTypeName() const = 0;
    00042
    00044   virtual void *getInterface(const XMLCh *name) const = 0;
    00045
    00046 protected:
    00047   Item() {}
    00048
    00049 private:
    00050   // copy constructor
    00051   Item (const Item & other);
    00052   // assignment operation
    00053   Item & operator=(const Item & item) ;
    00054 };
    00055
    00056 #endif // _ITEM_HPP
    00057