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27 
28 #ifndef _CONNECTIVITY_DBASE_INDEXITER_HXX_
29 #define _CONNECTIVITY_DBASE_INDEXITER_HXX_
30 
31 #include "file/fcode.hxx"
32 #include "dbase/DIndex.hxx"
33 #include "dbase/dindexnode.hxx"
34 
35 namespace connectivity
36 {
37 	namespace dbase
38 	{
39 		//==================================================================
40 		// IndexIterator
41 		//==================================================================
42 		class OIndexIterator
43 		{
44 		protected:
45 			file::OBoolOperator*	m_pOperator;
46 			const file::OOperand* 	m_pOperand;
47 			ODbaseIndex*			m_pIndex;
48 			ONDXPagePtr				m_aRoot,
49 									m_aCurLeaf;
50 			sal_uInt16					m_nCurNode;
51 
52 		protected:
53 			sal_uIntPtr Find(sal_Bool bFirst);
54 			sal_uIntPtr GetCompare(sal_Bool bFirst);
55 			sal_uIntPtr GetLike(sal_Bool bFirst);
56 			sal_uIntPtr GetNull(sal_Bool bFirst);
57 			sal_uIntPtr GetNotNull(sal_Bool bFirst);
58 
59 			ONDXKey* GetFirstKey(ONDXPage* pPage,
60 								const file::OOperand& rKey);
61 			ONDXKey* GetNextKey();
62 			ODbaseIndex* GetIndex() const {return m_pIndex;}
63 
64 
65 		public:
66 			OIndexIterator(ODbaseIndex* pInd,
67 							file::OBoolOperator* pOp,
68 							const file::OOperand* pOper)
69 				:m_pOperator(pOp)
70 				,m_pOperand(pOper)
71 				,m_pIndex(pInd)
72 				,m_nCurNode(NODE_NOTFOUND)
73 			{
74 				pInd->acquire();
75 			}
76 
77 			virtual ~OIndexIterator();
78 			sal_uIntPtr First();
79 			sal_uIntPtr Next();
80 
81 		};
82 	}
83 }
84 #endif // _CONNECTIVITY_DBASE_INDEXITER_HXX_
85 
86