--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/inc/mdssqlrow.h Mon Jan 18 20:34:07 2010 +0200
@@ -0,0 +1,220 @@
+/*
+* Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: Abstract SQL connection class*
+*/
+
+#ifndef __MDSSQLCONNECTION_H__
+#define __MDSSQLCONNECTION_H__
+
+#include <e32base.h>
+#include "mdccommon.pan"
+
+#include "mdscommoninternal.h"
+
+
+// types of columns
+enum TColumnDataType
+ {
+ EColumnNotUsed,
+ EColumnBool,
+ EColumnInt32,
+ EColumnUint32,
+ EColumnInt64,
+ EColumnReal32,
+ EColumnReal64,
+ EColumnTime,
+ EColumnDes8,
+ EColumnDes16, // could be used as Unknown, because it checks the
+ // actual type from sqlite
+ EColumnHBuf8, // local pointer responsibility
+ EColumnHBuf16, // local pointer responsibility
+ EColumnNullDes8,
+ EColumnNullDes16, // used when db column is null
+ //EColumnUnknown
+
+ EColumnTItemId = EColumnUint32, // should be changed according to TItemId definition
+ EColumnTDefId = EColumnUint32, // should be changed according to TDefId definition
+ };
+
+/**
+* A class representing a database column.
+* The column contains a type and an untyped pointer, which can
+* be cast to represent various types.
+*/
+NONSHARABLE_CLASS(TColumn)
+ {
+ public:
+ /** Returns column type. */
+ inline TColumnDataType Type() const;
+
+ /** Constructs a column with data type only. Use for queries. */
+ inline TColumn( TColumnDataType aType = EColumnNotUsed );
+
+ /** frees allocated memory in this column */
+ inline void Free();
+
+ // constructors
+
+ TColumn( TInt32 aVal ) { Set( aVal ); }
+ TColumn( TUint32 aVal ) { Set( aVal ); }
+ TColumn( TBool aVal ) { Set( aVal ); }
+ TColumn( TInt64 aVal ) { Set( aVal ); }
+ TColumn( TReal32 aVal ) { Set( aVal ); }
+ TColumn( TReal64 aVal ) { Set( aVal ); }
+ TColumn( TTime aVal ) { Set( aVal ); }
+ TColumn( const TDesC8& aVal ) { Set( aVal ); }
+ TColumn( const TDesC16& aVal ) { Set( aVal ); }
+ TColumn( const HBufC8* aVal ) { Set( aVal ); }
+ TColumn( const HBufC16* aVal ) { Set( aVal ); }
+
+ // data setters & getters
+
+ inline void Set( TInt32 aVal );
+
+ inline void Set( TUint32 aVal );
+
+ inline void Set( TBool aVal );
+
+ inline void Set( TInt64 aVal );
+
+ inline void Set( TReal32 aVal );
+
+ inline void Set( TReal64 aVal );
+
+ inline void Set( TTime aVal );
+
+ inline void Set( const TDesC8& aVal );
+
+ inline void Set( const TDesC16& aVal );
+
+ inline void Set( const HBufC8* aVal );
+
+ inline void Set( const HBufC16* aVal );
+
+ inline void NotUsed();
+
+ // data getters
+
+ inline void Get( TInt32& aValue ) const;
+
+ inline void Get( TUint32& aValue ) const;
+
+ inline void Get( TBool& aValue ) const;
+
+ inline void Get( TInt64& aValue ) const;
+
+ inline void Get( TReal32& aValue ) const;
+
+ inline void Get( TReal64& aValue ) const;
+
+ inline void Get( TTime& aValue ) const;
+
+ inline void Get( TPtrC8& aValue ) const;
+
+ inline void Get( TPtrC16& aValue ) const;
+
+ inline TBool IsNull();
+
+ /**
+ * type of data in this column
+ */
+ TColumnDataType iType;
+
+ /**
+ * a structure to store multi-typed data
+ */
+ union TMultiTypeData
+ {
+ /*struct
+ {
+ TUint32 iLow;
+ TUint32 iHigh;
+ } iInt64;*/
+ TInt64 iInt64;
+
+ TReal32 iReal32;
+ TReal64 iReal64;
+ TInt32 iInt32;
+ TUint32 iUint32;
+ struct
+ {
+ TAny* iPtr;
+ TInt iLen;
+ } iText;
+ };
+
+ /**
+ * multi-use data in this column
+ */
+ TMultiTypeData iData;
+ };
+
+/**
+* A class representing a database row.
+* The class describes each column type and the data in the column.
+* where column data is located. The class is provided during
+* query and is used when each row is read. Note that the
+* buffer class MAY be modified by the user during the query.
+* The same class is also used when replacing wildcards with
+* variable data.
+*/
+class RRowData
+ {
+ public:
+
+ /**
+ * constructor
+ */
+ inline RRowData();
+
+ /** Closes all the resources used by this object */
+ inline void Close();
+
+ /** frees allocated memory in this row */
+ inline void Free();
+
+ /** number of columns or variables */
+ inline TInt Size() const;
+
+ /** returns column by index */
+ inline TColumn& Column( TInt aIndex );
+
+ /** returns column by index */
+ inline const TColumn& Column( TInt aIndex ) const;
+
+ /** Appends a new column in row */
+ inline TColumn& AppendL( const TColumn& aColumn );
+
+ /** Resets the row */
+ inline void Reset();
+
+ /** Copy all columns */
+ void AppendColumnTypesL( RRowData& aColumnTypeRow );
+
+ /** Receive space to row */
+ void ReserveL( TInt aColumnCount );
+
+ protected:
+
+ /** The array of columns */
+ RArray<TColumn> iColumns;
+ };
+
+
+#include "mdssqlrow.inl" // inline methods
+
+#endif // __MDSSQLCONNECTION_H__
+
+
+// End of File