sl@0: // Copyright (c) 2006-2010 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // /////////////////////          TSqlBufRIterator class          /////////////////////////////////////////
sl@0: // 
sl@0: //
sl@0: 
sl@0: /**
sl@0:  
sl@0:  Initializes the iterator.
sl@0:  After the initialization the iterator points to the first flat buffer field - 1.
sl@0:  
sl@0:  @param aBuf A reference to the buffer which will be iterated.
sl@0: */
sl@0: inline void TSqlBufRIterator::Set(const RSqlBufFlat& aBuf)
sl@0: 	{
sl@0: 	iBegin = aBuf.Header();
sl@0: 	iCurrent = iBegin - 1;
sl@0: 	iEnd = iBegin + aBuf.Count();
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Moves to the next flat buffer field
sl@0: 
sl@0: @return False if there are no more fields to be iterated.
sl@0: */
sl@0: inline TBool TSqlBufRIterator::Next()
sl@0: 	{
sl@0: 	return ++iCurrent < iEnd;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Moves to the specified field in the flat buffer.
sl@0: 
sl@0: @param aIndex Field index
sl@0: */
sl@0: inline void TSqlBufRIterator::MoveTo(TInt aIndex)
sl@0: 	{
sl@0: 	__ASSERT_DEBUG((iBegin + (TUint)aIndex) < iEnd, __SQLPANIC(ESqlPanicBadArgument));
sl@0: 	iCurrent = iBegin + aIndex;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: @return True if the current flat buffer field is "Present"
sl@0: */
sl@0: inline TBool TSqlBufRIterator::IsPresent() const
sl@0: 	{
sl@0: 	__ASSERT_DEBUG(iCurrent >= iBegin && iCurrent < iEnd, __SQLPANIC(ESqlPanicInternalError));
sl@0: 	return iCurrent->iPos > 0;
sl@0: 	}
sl@0: 	
sl@0: /**
sl@0: @return Current flat buffer field type. One of TSqlColumnType enum item values or ESqlText8.
sl@0: */
sl@0: inline TInt TSqlBufRIterator::Type() const
sl@0: 	{
sl@0: 	__ASSERT_DEBUG(iCurrent >= iBegin && iCurrent < iEnd, __SQLPANIC(ESqlPanicInternalError));
sl@0: 	return iCurrent->Type();
sl@0: 	}
sl@0: 	
sl@0: /**
sl@0: @return Current flat buffer field size
sl@0: */
sl@0: inline TInt TSqlBufRIterator::Size() const
sl@0: 	{
sl@0: 	__ASSERT_DEBUG(iCurrent >= iBegin && iCurrent < iEnd, __SQLPANIC(ESqlPanicInternalError));
sl@0: 	return Type() == ESqlText ? iCurrent->Size() / sizeof(TUint16) : iCurrent->Size();
sl@0: 	}
sl@0: 
sl@0: 
sl@0: ///////////////////////////////////////////////////////////////////////////////////////////////////////////
sl@0: ////////////////////////                 TSqlBufWIterator class          //////////////////////////////////
sl@0: ///////////////////////////////////////////////////////////////////////////////////////////////////////////
sl@0: 
sl@0: /**
sl@0: Initializes the iterator.
sl@0: After the initialization the iterator points to the first flat buffer field - 1.
sl@0: 
sl@0: @param aBuf A reference to the buffer which will be iterated.
sl@0: */
sl@0: inline void TSqlBufWIterator::Set(RSqlBufFlat& aBuf)
sl@0: 	{
sl@0: 	iBuf = &aBuf;
sl@0: 	iIndex = -1;
sl@0: 	}
sl@0: 	
sl@0: /**
sl@0: Moves to the next flat buffer field
sl@0: 
sl@0: @return False if there are no more fields to be iterated.
sl@0: */
sl@0: inline TBool TSqlBufWIterator::Next()
sl@0: 	{
sl@0: 	__ASSERT_DEBUG(iBuf != NULL, __SQLPANIC(ESqlPanicInternalError));
sl@0: 	return ++iIndex < iBuf->Count();	
sl@0: 	}
sl@0: 	
sl@0: /**
sl@0: Moves to the specified field in the flat buffer.
sl@0: 
sl@0: @param aIndex Field index
sl@0: */
sl@0: inline void TSqlBufWIterator::MoveTo(TInt aIndex)
sl@0: 	{
sl@0: 	__ASSERT_DEBUG(iBuf != NULL, __SQLPANIC(ESqlPanicInternalError));
sl@0: 	__ASSERT_DEBUG((TUint)aIndex < iBuf->Count(), __SQLPANIC(ESqlPanicInternalError));
sl@0: 	iIndex = aIndex;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Sets the current flat buffer field to NULL.
sl@0: */
sl@0: inline void TSqlBufWIterator::SetNull()
sl@0: 	{
sl@0: 	__ASSERT_DEBUG(iBuf != NULL, __SQLPANIC(ESqlPanicInternalError));
sl@0: 	__ASSERT_DEBUG((TUint)iIndex < iBuf->Count(), __SQLPANIC(ESqlPanicInternalError));
sl@0: 	(void)iBuf->SetField(iIndex, ESqlNull, NULL, 0);
sl@0: 	}
sl@0: 	
sl@0: /**
sl@0: Sets the current flat buffer field as "Not present".
sl@0: 
sl@0: @param aType Field type. One of TSqlColumnType enum item values or ESqlText8.
sl@0: @param aLength Field length in bytes
sl@0: */
sl@0: inline void TSqlBufWIterator::SetAsNotPresent(TInt aType, TInt aLength)
sl@0: 	{
sl@0: 	__ASSERT_DEBUG(::IsSequenceSqlType(aType), __SQLPANIC(ESqlPanicBadArgument));
sl@0: 	__ASSERT_DEBUG(aLength >= 0, __SQLPANIC(ESqlPanicBadArgument));
sl@0: 	__ASSERT_DEBUG(iBuf != NULL, __SQLPANIC(ESqlPanicInternalError));
sl@0: 	__ASSERT_DEBUG((TUint)iIndex < iBuf->Count(), __SQLPANIC(ESqlPanicInternalError));
sl@0: 	iBuf->SetField(iIndex, aType, NULL, aType == ESqlText ? aLength * sizeof(TUint16) : aLength);
sl@0: 	}
sl@0: 	
sl@0: /**
sl@0: Initializes current flat buffer field with an integer value.
sl@0: 
sl@0: @param aValue An integer value to be set as a field content
sl@0: 
sl@0: @return KErrNone, The operation has completed successfully;
sl@0: 		KErrNoMemory, Out of memory condition has occured.
sl@0: */
sl@0: inline TInt TSqlBufWIterator::SetInt(TInt aValue)
sl@0: 	{
sl@0: 	__ASSERT_DEBUG(iBuf != NULL, __SQLPANIC(ESqlPanicInternalError));
sl@0: 	__ASSERT_DEBUG((TUint)iIndex < iBuf->Count(), __SQLPANIC(ESqlPanicInternalError));
sl@0: 	return iBuf->SetField(iIndex, ESqlInt, &aValue, sizeof(TInt));
sl@0: 	}
sl@0: 	
sl@0: /**
sl@0: Initializes current flat buffer field with an 64 bit integer value.
sl@0: 
sl@0: @param aValue A 64 bit integer value to be set as a field content
sl@0: 
sl@0: @return KErrNone, The operation has completed successfully;
sl@0: 		KErrNoMemory, Out of memory condition has occured.
sl@0: */
sl@0: inline TInt TSqlBufWIterator::SetInt64(TInt64 aValue)
sl@0: 	{
sl@0: 	__ASSERT_DEBUG(iBuf != NULL, __SQLPANIC(ESqlPanicInternalError));
sl@0: 	__ASSERT_DEBUG((TUint)iIndex < iBuf->Count(), __SQLPANIC(ESqlPanicInternalError));
sl@0: 	return iBuf->SetField(iIndex, ESqlInt64, &aValue, sizeof(TInt64));
sl@0: 	}
sl@0: 	
sl@0: /**
sl@0: Initializes current flat buffer field with a real value.
sl@0: 
sl@0: @param aValue A real value to be set as a field content
sl@0: 
sl@0: @return KErrNone, The operation has completed successfully;
sl@0: 		KErrNoMemory, Out of memory condition has occured.
sl@0: */
sl@0: inline TInt TSqlBufWIterator::SetReal(TReal aValue)
sl@0: 	{
sl@0: 	__ASSERT_DEBUG(iBuf != NULL, __SQLPANIC(ESqlPanicInternalError));
sl@0: 	__ASSERT_DEBUG((TUint)iIndex < iBuf->Count(), __SQLPANIC(ESqlPanicInternalError));
sl@0: 	return iBuf->SetField(iIndex, ESqlReal, &aValue, sizeof(TReal));
sl@0: 	}
sl@0: 	
sl@0: /**
sl@0: Initializes current flat buffer field with a block of binary data.
sl@0: 
sl@0: @param aValue An 8 bit descriptor pointing to the block of data to be set as a field content.
sl@0: 
sl@0: @return KErrNone, The operation has completed successfully;
sl@0: 		KErrNoMemory, Out of memory condition has occured.
sl@0: */
sl@0: inline TInt TSqlBufWIterator::SetBinary(const TDesC8& aValue)
sl@0: 	{
sl@0: 	__ASSERT_DEBUG(iBuf != NULL, __SQLPANIC(ESqlPanicInternalError));
sl@0: 	__ASSERT_DEBUG((TUint)iIndex < iBuf->Count(), __SQLPANIC(ESqlPanicInternalError));
sl@0: 	return iBuf->SetField(iIndex, ESqlBinary, aValue.Ptr(), aValue.Length());
sl@0: 	}
sl@0: 	
sl@0: /**
sl@0: Initializes current flat buffer field with a block of 16 bit text.
sl@0: 
sl@0: @param aValue A 16 bit descriptor pointing to the block of text to be set as a field content.
sl@0: 
sl@0: @return KErrNone, The operation has completed successfully;
sl@0: 		KErrNoMemory, Out of memory condition has occured.
sl@0: */
sl@0: inline TInt TSqlBufWIterator::SetText(const TDesC16& aValue)
sl@0: 	{
sl@0: 	__ASSERT_DEBUG(iBuf != NULL, __SQLPANIC(ESqlPanicInternalError));
sl@0: 	__ASSERT_DEBUG((TUint)iIndex < iBuf->Count(), __SQLPANIC(ESqlPanicInternalError));
sl@0: 	return iBuf->SetField(iIndex, ESqlText, aValue.Ptr(), aValue.Length() * sizeof(TUint16));
sl@0: 	}
sl@0: 
sl@0: 	
sl@0: /**
sl@0: Initializes current flat buffer field with a zeroblob of the specified size.
sl@0: 
sl@0: @param aSize The size, in bytes, of the zeroblob to be set as the field content.
sl@0: 
sl@0: @return KErrNone, The operation has completed successfully;
sl@0: 		KErrNoMemory, Out of memory condition has occured.
sl@0: */
sl@0: inline TInt TSqlBufWIterator::SetZeroBlob(TInt aSize)
sl@0: 	{
sl@0: 	__ASSERT_DEBUG(iBuf != NULL, __SQLPANIC(ESqlPanicInternalError));
sl@0: 	__ASSERT_DEBUG((TUint)iIndex < iBuf->Count(), __SQLPANIC(ESqlPanicInternalError));
sl@0: 	return iBuf->SetField(iIndex, ESqlZeroBlob, &aSize, sizeof(TInt));
sl@0: 	}