/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include "cachedcontentresultset.hxx"
#include <com/sun/star/sdbc/FetchDirection.hpp>
#include <com/sun/star/sdbc/SQLException.hpp>
#include <com/sun/star/ucb/FetchError.hpp>
#include <com/sun/star/beans/PropertyAttribute.hpp>
#include <com/sun/star/script/CannotConvertException.hpp>
#include <com/sun/star/script/Converter.hpp>
#include <com/sun/star/lang/WrappedTargetRuntimeException.hpp>
#include <rtl/ustring.hxx>
#include <o3tl/any.hxx>
#include <osl/diagnose.h>
#include <cppuhelper/exc_hlp.hxx>
#include <cppuhelper/queryinterface.hxx>
#include <ucbhelper/macros.hxx>
#include <optional>
#include <string_view>
using namespace com::sun::star::beans;
using namespace com::sun::star::lang;
using namespace com::sun::star::script;
using namespace com::sun::star::sdbc;
using namespace com::sun::star::ucb;
using namespace com::sun::star::uno;
using namespace com::sun::star::util;
using namespace cppu;
#define COMSUNSTARUCBCCRS_DEFAULT_FETCH_SIZE 256
#define COMSUNSTARUCBCCRS_DEFAULT_FETCH_DIRECTION FetchDirection::FORWARD
//if you change this function template please pay attention to
//function getObject, where this is similar implemented
template<
typename T> T CachedContentResultSet::rowOriginGet(
T (SAL_CALL css::sdbc::XRow::* f)(sal_Int32), sal_Int32 columnIndex)
{
std::unique_lock aGuard(m_aMutex);
impl_EnsureNotDisposed(aGuard);
sal_Int32 nRow = m_nRow;
sal_Int32 nFetchSize = m_nFetchSize;
sal_Int32 nFetchDirection = m_nFetchDirection;
if( !m_aCache.hasRow( nRow ) )
{
if( !m_aCache.hasCausedException( nRow ) )
{
if( !m_xFetchProvider.is() )
{
OSL_FAIL(
"broadcaster was disposed already" );
throw SQLException();
}
if( impl_isForwardOnly(aGuard) )
applyPositionToOrigin( aGuard, nRow );
impl_fetchData( aGuard, nRow, nFetchSize, nFetchDirection );
}
if( !m_aCache.hasRow( nRow ) )
{
m_bLastReadWasFromCache =
false;
applyPositionToOrigin( aGuard, nRow );
impl_init_xRowOrigin(aGuard);
aGuard.unlock();
return (m_xRowOrigin.get()->*f)( columnIndex );
}
}
const Any& rValue = m_aCache.getAny( nRow, columnIndex );
T aRet = T();
m_bLastReadWasFromCache =
true;
m_bLastCachedReadWasNull = !( rValue >>= aRet );
/* Last chance. Try type converter service... */
if ( m_bLastCachedReadWasNull && rValue.hasValue() )
{
Reference< XTypeConverter > xConverter = getTypeConverter(aGuard);
if ( xConverter.is() )
{
try
{
Any aConvAny = xConverter->convertTo(
rValue,
cppu::UnoType<T>::get() );
m_bLastCachedReadWasNull = !( aConvAny >>= aRet );
}
catch (
const IllegalArgumentException&)
{
}
catch (
const CannotConvertException&)
{
}
}
}
return aRet;
}
// CCRS_Cache methods
CachedContentResultSet::CCRS_Cache::CCRS_Cache(
const Reference< XContentIdentifierMapping > & xMapping )
: m_xContentIdentifierMapping( xMapping )
{
}
CachedContentResultSet::CCRS_Cache::~CCRS_Cache()
{
}
void CachedContentResultSet::CCRS_Cache
::clear()
{
m_pResult.reset();
m_pMappedReminder.reset();
}
void CachedContentResultSet::CCRS_Cache
::loadData(
const FetchResult& rResult )
{
clear();
m_pResult = rResult;
}
bool CachedContentResultSet::CCRS_Cache
::hasRow( sal_Int32 row )
const
{
if( !m_pResult )
return false;
sal_Int32 nStart = m_pResult->StartIndex;
sal_Int32 nEnd = nStart;
if( m_pResult->Orientation )
nEnd += m_pResult->Rows.getLength() - 1;
else
nStart -= m_pResult->Rows.getLength() + 1;
return nStart <= row && row <= nEnd;
}
sal_Int32 CachedContentResultSet::CCRS_Cache
::getMaxRow()
const
{
if( !m_pResult )
return 0;
sal_Int32 nEnd = m_pResult->StartIndex;
if( m_pResult->Orientation )
return nEnd + m_pResult->Rows.getLength() - 1;
else
return nEnd;
}
bool CachedContentResultSet::CCRS_Cache
::hasKnownLast()
const
{
if( !m_pResult )
return false;
return ( m_pResult->FetchError & FetchError::ENDOFDATA )
&& m_pResult->Orientation
&& m_pResult->Rows.hasElements();
}
bool CachedContentResultSet::CCRS_Cache
::hasCausedException( sal_Int32 nRow )
const
{
if( !m_pResult )
return false;
if( !( m_pResult->FetchError & FetchError::EXCEPTION ) )
return false;
sal_Int32 nEnd = m_pResult->StartIndex;
if( m_pResult->Orientation )
nEnd += m_pResult->Rows.getLength();
return nRow == nEnd+1;
}
Any& CachedContentResultSet::CCRS_Cache
::getRowAny( sal_Int32 nRow )
{
if( !nRow )
throw SQLException();
if( !m_pResult )
throw SQLException();
if( !hasRow( nRow ) )
throw SQLException();
sal_Int32 nDiff = nRow - m_pResult->StartIndex;
if( nDiff < 0 )
nDiff *= -1;
return m_pResult->Rows.getArray()[nDiff];
}
void CachedContentResultSet::CCRS_Cache
::remindMapped( sal_Int32 nRow )
{
//remind that this row was mapped
if( !m_pResult )
return;
sal_Int32 nDiff = nRow - m_pResult->StartIndex;
if( nDiff < 0 )
nDiff *= -1;
Sequence< sal_Bool >& rMappedReminder = getMappedReminder();
if( nDiff < rMappedReminder.getLength() )
{
sal_Bool* pMappedReminder = rMappedReminder.getArray();
pMappedReminder[nDiff] =
true;
}
}
bool CachedContentResultSet::CCRS_Cache
::isRowMapped( sal_Int32 nRow )
{
if( !m_pMappedReminder || !m_pResult )
return false;
sal_Int32 nDiff = nRow - m_pResult->StartIndex;
if( nDiff < 0 )
nDiff *= -1;
if( nDiff < m_pMappedReminder->getLength() )
return (*m_pMappedReminder)[nDiff];
return false;
}
Sequence< sal_Bool >& CachedContentResultSet::CCRS_Cache
::getMappedReminder()
{
if( !m_pMappedReminder )
{
sal_Int32 nCount = m_pResult->Rows.getLength();
m_pMappedReminder.emplace( nCount );
std::fill_n(m_pMappedReminder->getArray(), m_pMappedReminder->getLength(),
false);
}
return *m_pMappedReminder;
}
const Any& CachedContentResultSet::CCRS_Cache
::getAny( sal_Int32 nRow, sal_Int32 nColumnIndex )
{
if( !nColumnIndex )
throw SQLException();
if( m_xContentIdentifierMapping.is() && !isRowMapped( nRow ) )
{
Any& rRow = getRowAny( nRow );
Sequence< Any > aValue;
rRow >>= aValue;
if( m_xContentIdentifierMapping->mapRow( aValue ) )
{
rRow <<= aValue;
remindMapped( nRow );
}
else
m_xContentIdentifierMapping.clear();
}
auto & rowAny = getRowAny(nRow);
auto rRow = o3tl::doAccess<Sequence<Any>>(rowAny);
if( nColumnIndex > rRow->getLength() )
throw SQLException();
return (*rRow)[nColumnIndex-1];
}
OUString
const & CachedContentResultSet::CCRS_Cache
::getContentIdentifierString( sal_Int32 nRow )
{
try
{
if( m_xContentIdentifierMapping.is() && !isRowMapped( nRow ) )
{
Any& rRow = getRowAny( nRow );
OUString aValue;
rRow >>= aValue;
rRow <<= m_xContentIdentifierMapping->mapContentIdentifierString( aValue );
remindMapped( nRow );
}
return *o3tl::doAccess<OUString>(getRowAny(nRow));
}
catch(
const SQLException& ex)
{
css::uno::Any anyEx = cppu::getCaughtException();
throw css::lang::WrappedTargetRuntimeException( ex.Message,
css::uno::Reference< css::uno::XInterface >(),
anyEx );
}
}
Reference< XContentIdentifier > CachedContentResultSet::CCRS_Cache
::getContentIdentifier( sal_Int32 nRow )
{
try
{
if( m_xContentIdentifierMapping.is() && !isRowMapped( nRow ) )
{
Any& rRow = getRowAny( nRow );
Reference< XContentIdentifier > aValue;
rRow >>= aValue;
rRow <<= m_xContentIdentifierMapping->mapContentIdentifier( aValue );
remindMapped( nRow );
}
return *o3tl::doAccess<Reference<XContentIdentifier>>(getRowAny(nRow));
}
catch(
const SQLException& ex)
{
css::uno::Any anyEx = cppu::getCaughtException();
throw css::lang::WrappedTargetRuntimeException( ex.Message,
css::uno::Reference< css::uno::XInterface >(),
anyEx );
}
}
Reference< XContent > CachedContentResultSet::CCRS_Cache
::getContent( sal_Int32 nRow )
{
try
{
if( m_xContentIdentifierMapping.is() && !isRowMapped( nRow ) )
{
Any& rRow = getRowAny( nRow );
Reference< XContent > aValue;
rRow >>= aValue;
rRow <<= m_xContentIdentifierMapping->mapContent( aValue );
remindMapped( nRow );
}
return *o3tl::doAccess<Reference<XContent>>(getRowAny(nRow));
}
catch (
const SQLException& ex)
{
css::uno::Any anyEx = cppu::getCaughtException();
throw css::lang::WrappedTargetRuntimeException( ex.Message,
css::uno::Reference< css::uno::XInterface >(),
anyEx );
}
}
class CCRS_PropertySetInfo :
public cppu::OWeakObject,
public css::lang::XTypeProvider,
public css::beans::XPropertySetInfo
{
friend class CachedContentResultSet;
//my Properties
std::optional<Sequence< css::beans::Property >>
m_xProperties;
sal_Int32 m_nFetchSizePropertyHandle;
sal_Int32 m_nFetchDirectionPropertyHandle;
private:
sal_Int32
impl_getRemainedHandle()
const;
bool
impl_queryProperty(
std::u16string_view rName
, css::beans::Property& rProp )
const;
sal_Int32
impl_getPos( std::u16string_view rName )
const;
static bool
impl_isMyPropertyName( std::u16string_view rName );
public:
explicit CCRS_PropertySetInfo( Reference<
XPropertySetInfo >
const & xPropertySetInfoOrigin );
// XInterface
virtual css::uno::Any SAL_CALL queryInterface(
const css::uno::Type & rType ) overrid
e;
virtual void SAL_CALL acquire()
noexcept override;
virtual void SAL_CALL release()
noexcept override;
// XTypeProvider
virtual css::uno::Sequence< sal_Int8 > SAL_CALL getImplementationId() override;
virtual css::uno::Sequence< css::uno::Type > SAL_CALL getTypes() override;
// XPropertySetInfo
virtual Sequence< css::beans::Property > SAL_CALL
getProperties() override;
virtual css::beans::Property SAL_CALL
getPropertyByName( const OUString& aName ) override;
virtual sal_Bool SAL_CALL
hasPropertyByName( const OUString& Name ) override;
};
//some helping variables ( names for my special properties )
const char16_t g_sPropertyNameForCount[] = u"RowCount";
const char16_t g_sPropertyNameForFinalCount[] = u"IsRowCountFinal";
constexpr OUString g_sPropertyNameForFetchSize(u"FetchSize"_ustr);
constexpr OUString g_sPropertyNameForFetchDirection(u"FetchDirection"_ustr);
CCRS_PropertySetInfo::CCRS_PropertySetInfo(
Reference< XPropertySetInfo > const & xInfo )
: m_nFetchSizePropertyHandle( -1 )
, m_nFetchDirectionPropertyHandle( -1 )
{
//initialize list of properties:
// it is required, that the received xInfo contains the two
// properties with names 'g_sPropertyNameForCount' and
// 'g_sPropertyNameForFinalCount'
if( xInfo.is() )
{
m_xProperties = xInfo->getProperties();
}
else
{
OSL_FAIL( "The received XPropertySetInfo doesn't contain required properties" );
m_xProperties.emplace();
}
//ensure, that we haven't got the Properties 'FetchSize' and 'Direction' twice:
sal_Int32 nFetchSize = impl_getPos( g_sPropertyNameForFetchSize );
sal_Int32 nFetchDirection = impl_getPos( g_sPropertyNameForFetchDirection );
sal_Int32 nDeleted = 0;
if( nFetchSize != -1 )
nDeleted++;
if( nFetchDirection != -1 )
nDeleted++;
Sequence< Property > aOrigProps( *m_xProperties );
sal_Int32 nOrigProps = aOrigProps.getLength();
m_xProperties->realloc( nOrigProps + 2 - nDeleted );//note that nDeleted is <= 2
auto pProperties = m_xProperties->getArray();
for( sal_Int32 n = 0, m = 0; n < nOrigProps; n++, m++ )
{
if( n == nFetchSize || n == nFetchDirection )
m--;
else
pProperties[ m ] = aOrigProps[ n ];
}
{
Property& rMyProp = pProperties[ nOrigProps - nDeleted ];
rMyProp.Name = g_sPropertyNameForFetchSize;
rMyProp.Type = cppu::UnoType<sal_Int32>::get();
rMyProp.Attributes = PropertyAttribute::BOUND | PropertyAttribute::MAYBEDEFAULT;
if( nFetchSize != -1 )
m_nFetchSizePropertyHandle = aOrigProps[nFetchSize].Handle;
else
m_nFetchSizePropertyHandle = impl_getRemainedHandle();
rMyProp.Handle = m_nFetchSizePropertyHandle;
}
{
Property& rMyProp = pProperties[ nOrigProps - nDeleted + 1 ];
rMyProp.Name = g_sPropertyNameForFetchDirection;
rMyProp.Type = cppu::UnoType<sal_Bool>::get();
rMyProp.Attributes = PropertyAttribute::BOUND | PropertyAttribute::MAYBEDEFAULT;
m_nFetchDirectionPropertyHandle = rMyProp.Handle;
}
}
// XInterface methods.
void SAL_CALL CCRS_PropertySetInfo::acquire()
noexcept
{
OWeakObject::acquire();
}
void SAL_CALL CCRS_PropertySetInfo::release()
noexcept
{
OWeakObject::release();
}
css::uno::Any SAL_CALL CCRS_PropertySetInfo::queryInterface( const css::uno::Type & rType )
{
css::uno::Any aRet = cppu::queryInterface( rType,
static_cast< XTypeProvider* >(this),
static_cast< XPropertySetInfo* >(this)
);
return aRet.hasValue() ? aRet : OWeakObject::queryInterface( rType );
}
// XTypeProvider methods.
//list all interfaces exclusive baseclasses
XTYPEPROVIDER_IMPL_2( CCRS_PropertySetInfo
, XTypeProvider
, XPropertySetInfo
);
// XPropertySetInfo methods.
//virtual
Sequence< Property > SAL_CALL CCRS_PropertySetInfo
::getProperties()
{
return *m_xProperties;
}
//virtual
Property SAL_CALL CCRS_PropertySetInfo
::getPropertyByName( const OUString& aName )
{
Property aProp;
if ( impl_queryProperty( aName, aProp ) )
return aProp;
throw UnknownPropertyException(aName);
}
//virtual
sal_Bool SAL_CALL CCRS_PropertySetInfo
::hasPropertyByName( const OUString& Name )
{
return ( impl_getPos( Name ) != -1 );
}
// impl_ methods.
sal_Int32 CCRS_PropertySetInfo
::impl_getPos( std::u16string_view rName ) const
{
for( sal_Int32 nN = m_xProperties->getLength(); nN--; )
{
const Property& rMyProp = (*m_xProperties)[nN];
if( rMyProp.Name == rName )
return nN;
}
return -1;
}
bool CCRS_PropertySetInfo
::impl_queryProperty( std::u16string_view rName, Property& rProp ) const
{
for (const Property& rMyProp : *m_xProperties)
{
if( rMyProp.Name == rName )
{
rProp.Name = rMyProp.Name;
rProp.Handle = rMyProp.Handle;
rProp.Type = rMyProp.Type;
rProp.Attributes = rMyProp.Attributes;
return true;
}
}
return false;
}
//static
bool CCRS_PropertySetInfo
::impl_isMyPropertyName( std::u16string_view rPropertyName )
{
return ( rPropertyName == g_sPropertyNameForCount
|| rPropertyName == g_sPropertyNameForFinalCount
|| rPropertyName == g_sPropertyNameForFetchSize
|| rPropertyName == g_sPropertyNameForFetchDirection );
}
sal_Int32 CCRS_PropertySetInfo
::impl_getRemainedHandle( ) const
{
sal_Int32 nHandle = 1;
if( !m_xProperties )
{
OSL_FAIL( "Properties not initialized yet" );
return nHandle;
}
bool bFound = true;
while( bFound )
{
bFound = false;
for (const auto& rProp : *m_xProperties)
{
if( nHandle == rProp.Handle )
{
bFound = true;
nHandle++;
break;
}
}
}
return nHandle;
}
CachedContentResultSet::CachedContentResultSet(
const Reference< XComponentContext > & rxContext
, const Reference< XResultSet > & xOrigin
, const Reference< XContentIdentifierMapping > &
xContentIdentifierMapping )
: ContentResultSetWrapper( xOrigin )
, m_xContext( rxContext )
, m_xContentIdentifierMapping( xContentIdentifierMapping )
, m_nRow( 0 ) // Position is one-based. Zero means: before first element.
, m_bAfterLast( false )
, m_nLastAppliedPos( 0 )
, m_bAfterLastApplied( false )
, m_nKnownCount( 0 )
, m_bFinalCount( false )
, m_nFetchSize(
COMSUNSTARUCBCCRS_DEFAULT_FETCH_SIZE )
, m_nFetchDirection(
COMSUNSTARUCBCCRS_DEFAULT_FETCH_DIRECTION )
, m_bLastReadWasFromCache( false )
, m_bLastCachedReadWasNull( true )
, m_aCache( m_xContentIdentifierMapping )
, m_aCacheContentIdentifierString( m_xContentIdentifierMapping )
, m_aCacheContentIdentifier( m_xContentIdentifierMapping )
, m_aCacheContent( m_xContentIdentifierMapping )
, m_bTriedToGetTypeConverter( false )
{
m_xFetchProvider.set( m_xResultSetOrigin, UNO_QUERY );
OSL_ENSURE( m_xFetchProvider.is(), "interface XFetchProvider is required" );
m_xFetchProviderForContentAccess.set( m_xResultSetOrigin, UNO_QUERY );
OSL_ENSURE( m_xFetchProviderForContentAccess.is(), "interface XFetchProviderForContentAccess is required" );
impl_init();
};
CachedContentResultSet::~CachedContentResultSet()
{
impl_deinit();
//do not delete m_pMyPropSetInfo, cause it is hold via reference
};
// impl_ methods.
bool CachedContentResultSet
::applyPositionToOrigin( std::unique_lock<std::mutex>& rGuard, sal_Int32 nRow )
{
impl_EnsureNotDisposed(rGuard);
/**
@returns
<TRUE/> if the cursor is on a valid row; <FALSE/> if it is off
the result set.
*/
OSL_ENSURE( nRow >= 0, "only positive values supported" );
if( !m_xResultSetOrigin.is() )
{
OSL_FAIL( "broadcaster was disposed already" );
return false;
}
// OSL_ENSURE( nRow <= m_nKnownCount, "don't step into regions you don't know with this method" );
sal_Int32 nLastAppliedPos = m_nLastAppliedPos;
bool bAfterLastApplied = m_bAfterLastApplied;
bool bAfterLast = m_bAfterLast;
sal_Int32 nForwardOnly = m_nForwardOnly;
rGuard.unlock();
if( bAfterLastApplied || nLastAppliedPos != nRow )
{
if( nForwardOnly == 1 )
{
if( bAfterLastApplied || bAfterLast || !nRow || nRow < nLastAppliedPos )
throw SQLException();
sal_Int32 nN = nRow - nLastAppliedPos;
sal_Int32 nM;
for( nM = 0; nN--; nM++ )
{
if( !m_xResultSetOrigin->next() )
break;
}
rGuard.lock();
m_nLastAppliedPos += nM;
m_bAfterLastApplied = nRow != m_nLastAppliedPos;
return nRow == m_nLastAppliedPos;
}
if( !nRow ) //absolute( 0 ) will throw exception
{
m_xResultSetOrigin->beforeFirst();
rGuard.lock();
m_nLastAppliedPos = 0;
m_bAfterLastApplied = false;
return false;
}
try
{
//move absolute, if !nLastAppliedPos
//because move relative would throw exception
if( !nLastAppliedPos || bAfterLast || bAfterLastApplied )
{
bool bValid = m_xResultSetOrigin->absolute( nRow );
rGuard.lock();
m_nLastAppliedPos = nRow;
m_bAfterLastApplied = !bValid;
return bValid;
}
else
{
bool bValid = m_xResultSetOrigin->relative( nRow - nLastAppliedPos );
rGuard.lock();
m_nLastAppliedPos += ( nRow - nLastAppliedPos );
m_bAfterLastApplied = !bValid;
return bValid;
}
}
catch (const SQLException&)
{
rGuard.lock();
if( !bAfterLastApplied && !bAfterLast && nRow > nLastAppliedPos && impl_isForwardOnly(rGuard) )
{
sal_Int32 nN = nRow - nLastAppliedPos;
sal_Int32 nM;
for( nM = 0; nN--; nM++ )
{
if( !m_xResultSetOrigin->next() )
break;
}
m_nLastAppliedPos += nM;
m_bAfterLastApplied = nRow != m_nLastAppliedPos;
}
else
throw;
return nRow == m_nLastAppliedPos;
}
}
return true;
};
//define for fetching data
#define FETCH_XXX( aCache, fetchInterface, fetchMethod ) \
bool bDirection = !!( \
nFetchDirection != FetchDirection::REVERSE ); \
FetchResult aResult = \
fetchInterface->fetchMethod( nRow, nFetchSize, bDirection ); \
aCache.loadData( aResult ); \
sal_Int32 nMax = aCache.getMaxRow(); \
sal_Int32 nCurCount = m_nKnownCount; \
bool bIsFinalCount = aCache.hasKnownLast(); \
bool bCurIsFinalCount = m_bFinalCount; \
if( nMax > nCurCount ) \
impl_changeRowCount( rGuard, nCurCount, nMax ); \
if( bIsFinalCount && !bCurIsFinalCount ) \
impl_changeIsRowCountFinal( rGuard, bCurIsFinalCount, bIsFinalCount );
void CachedContentResultSet
::impl_fetchData( std::unique_lock<std::mutex>& rGuard, sal_Int32 nRow
, sal_Int32 nFetchSize, sal_Int32 nFetchDirection )
{
FETCH_XXX( m_aCache, m_xFetchProvider, fetch );
}
void CachedContentResultSet
::impl_changeRowCount( std::unique_lock<std::mutex>& rGuard, sal_Int32 nOld, sal_Int32 nNew )
{
OSL_ENSURE( nNew > nOld, "RowCount only can grow" );
if( nNew <= nOld )
return;
//create PropertyChangeEvent and set value
PropertyChangeEvent aEvt;
aEvt.Source = static_cast< XPropertySet * >( this );
aEvt.Further = false;
aEvt.OldValue <<= nOld;
aEvt.NewValue <<= nNew;
m_nKnownCount = nNew;
//send PropertyChangeEvent to listeners
impl_notifyPropertyChangeListeners( rGuard, aEvt );
}
void CachedContentResultSet
::impl_changeIsRowCountFinal( std::unique_lock<std::mutex>& rGuard, bool bOld, bool bNew )
{
OSL_ENSURE( !bOld && bNew, "This change is not allowed for IsRowCountFinal" );
if( bOld || !bNew )
return;
//create PropertyChangeEvent and set value
PropertyChangeEvent aEvt;
aEvt.Source = static_cast< XPropertySet * >( this );
aEvt.Further = false;
aEvt.OldValue <<= bOld;
aEvt.NewValue <<= bNew;
m_bFinalCount = bNew;
//send PropertyChangeEvent to listeners
impl_notifyPropertyChangeListeners( rGuard, aEvt );
}
bool CachedContentResultSet
::impl_isKnownValidPosition( std::unique_lock<std::mutex>& /*rGuard*/, sal_Int32 nRow ) const
{
return m_nKnownCount && nRow
&& nRow <= m_nKnownCount;
}
bool CachedContentResultSet
::impl_isKnownInvalidPosition( std::unique_lock<std::mutex>& /*rGuard*/, sal_Int32 nRow ) const
{
if( !nRow )
return true;
if( !m_bFinalCount )
return false;
return nRow > m_nKnownCount;
}
//virtual
void CachedContentResultSet
::impl_initPropertySetInfo(std::unique_lock<std::mutex>& rGuard)
{
ContentResultSetWrapper::impl_initPropertySetInfo(rGuard);
if( m_xMyPropertySetInfo.is() )
return;
m_xMyPropertySetInfo = new CCRS_PropertySetInfo( m_xPropertySetInfo );
m_xPropertySetInfo = m_xMyPropertySetInfo.get();
}
// XInterface methods.
void SAL_CALL CachedContentResultSet::acquire()
noexcept
{
OWeakObject::acquire();
}
void SAL_CALL CachedContentResultSet::release()
noexcept
{
OWeakObject::release();
}
Any SAL_CALL CachedContentResultSet
::queryInterface( const Type& rType )
{
//list all interfaces inclusive baseclasses of interfaces
Any aRet = ContentResultSetWrapper::queryInterface( rType );
if( aRet.hasValue() )
return aRet;
aRet = cppu::queryInterface( rType,
static_cast< XTypeProvider* >( this ),
static_cast< XServiceInfo* >( this ) );
return aRet.hasValue() ? aRet : OWeakObject::queryInterface( rType );
}
// XTypeProvider methods.
//list all interfaces exclusive baseclasses
XTYPEPROVIDER_IMPL_11( CachedContentResultSet
, XTypeProvider
, XServiceInfo
, XComponent
, XCloseable
, XResultSetMetaDataSupplier
, XPropertySet
, XPropertyChangeListener
, XVetoableChangeListener
, XContentAccess
, XResultSet
, XRow );
// XServiceInfo methods.
OUString SAL_CALL CachedContentResultSet::getImplementationName()
{
return u"com.sun.star.comp.ucb.CachedContentResultSet"_ustr;
}
sal_Bool SAL_CALL CachedContentResultSet::supportsService( const OUString& ServiceName )
{
return cppu::supportsService( this, ServiceName );
}
css::uno::Sequence< OUString > SAL_CALL CachedContentResultSet::getSupportedServiceNames()
{
return { u"com.sun.star.ucb.CachedContentResultSet"_ustr };
}
// XPropertySet methods. ( inherited )
// virtual
void CachedContentResultSet
::setPropertyValueImpl( std::unique_lock<std::mutex>& rGuard, const OUString& aPropertyName, const Any& aValue )
{
impl_EnsureNotDisposed(rGuard);
if( !getPropertySetInfoImpl(rGuard).is() )
{
OSL_FAIL( "broadcaster was disposed already" );
throw UnknownPropertyException();
}
Property aProp = m_xMyPropertySetInfo->getPropertyByName( aPropertyName );
//throws UnknownPropertyException, if so
if( aProp.Attributes & PropertyAttribute::READONLY )
{
//It is assumed, that the properties
//'RowCount' and 'IsRowCountFinal' are readonly!
throw IllegalArgumentException();
}
if( aProp.Name == g_sPropertyNameForFetchDirection )
{
//check value
sal_Int32 nNew;
if( !( aValue >>= nNew ) )
{
throw IllegalArgumentException();
}
if( nNew == FetchDirection::UNKNOWN )
{
nNew = COMSUNSTARUCBCCRS_DEFAULT_FETCH_DIRECTION;
}
else if( nNew != FetchDirection::FORWARD && nNew != FetchDirection::REVERSE )
{
throw IllegalArgumentException();
}
//create PropertyChangeEvent and set value
PropertyChangeEvent aEvt;
aEvt.Source = static_cast< XPropertySet * >( this );
aEvt.PropertyName = aPropertyName;
aEvt.Further = false;
aEvt.PropertyHandle = m_xMyPropertySetInfo->
m_nFetchDirectionPropertyHandle;
aEvt.OldValue <<= m_nFetchDirection;
aEvt.NewValue <<= nNew;
m_nFetchDirection = nNew;
//send PropertyChangeEvent to listeners
impl_notifyPropertyChangeListeners( rGuard, aEvt );
}
else if( aProp.Name == g_sPropertyNameForFetchSize )
{
//check value
sal_Int32 nNew;
if( !( aValue >>= nNew ) )
{
throw IllegalArgumentException();
}
if( nNew < 0 )
{
nNew = COMSUNSTARUCBCCRS_DEFAULT_FETCH_SIZE;
}
//create PropertyChangeEvent and set value
PropertyChangeEvent aEvt;
aEvt.Source = static_cast< XPropertySet * >( this );
aEvt.PropertyName = aPropertyName;
aEvt.Further = false;
aEvt.PropertyHandle = m_xMyPropertySetInfo->
m_nFetchSizePropertyHandle;
aEvt.OldValue <<= m_nFetchSize;
aEvt.NewValue <<= nNew;
m_nFetchSize = nNew;
//send PropertyChangeEvent to listeners
impl_notifyPropertyChangeListeners( rGuard, aEvt );
}
else
{
impl_init_xPropertySetOrigin(rGuard);
if( !m_xPropertySetOrigin.is() )
{
OSL_FAIL( "broadcaster was disposed already" );
return;
}
m_xPropertySetOrigin->setPropertyValue( aPropertyName, aValue );
}
}
// virtual
Any SAL_CALL CachedContentResultSet
::getPropertyValue( const OUString& rPropertyName )
{
std::unique_lock aGuard(m_aMutex);
impl_EnsureNotDisposed(aGuard);
if( !getPropertySetInfoImpl(aGuard).is() )
{
OSL_FAIL( "broadcaster was disposed already" );
throw UnknownPropertyException();
}
m_xMyPropertySetInfo->getPropertyByName( rPropertyName );
//throws UnknownPropertyException, if so
Any aValue;
if( rPropertyName == g_sPropertyNameForCount )
{
aValue <<= m_nKnownCount;
}
else if( rPropertyName == g_sPropertyNameForFinalCount )
{
aValue <<= m_bFinalCount;
}
else if( rPropertyName == g_sPropertyNameForFetchSize )
{
aValue <<= m_nFetchSize;
}
else if( rPropertyName == g_sPropertyNameForFetchDirection )
{
aValue <<= m_nFetchDirection;
}
else
{
impl_init_xPropertySetOrigin(aGuard);
if( !m_xPropertySetOrigin.is() )
{
OSL_FAIL( "broadcaster was disposed already" );
throw UnknownPropertyException();
}
aGuard.unlock();
aValue = m_xPropertySetOrigin->getPropertyValue( rPropertyName );
}
return aValue;
}
// own methods. ( inherited )
//virtual, only called from ContentResultSetWrapperListener
void CachedContentResultSet
::impl_disposing( const EventObject& rEventObject )
{
{
std::unique_lock aGuard(m_aMutex);
impl_EnsureNotDisposed(aGuard);
//release all references to the broadcaster:
m_xFetchProvider.clear();
m_xFetchProviderForContentAccess.clear();
}
ContentResultSetWrapper::impl_disposing( rEventObject );
}
//virtual, only called from ContentResultSetWrapperListener
void CachedContentResultSet
::impl_propertyChange( const PropertyChangeEvent& rEvt )
{
std::unique_lock aGuard(m_aMutex);
impl_EnsureNotDisposed(aGuard);
PropertyChangeEvent aEvt( rEvt );
aEvt.Source = static_cast< XPropertySet * >( this );
aEvt.Further = false;
if( CCRS_PropertySetInfo
::impl_isMyPropertyName( rEvt.PropertyName ) )
{
//don't notify foreign events on fetchsize and fetchdirection
if( aEvt.PropertyName == g_sPropertyNameForFetchSize
|| aEvt.PropertyName == g_sPropertyNameForFetchDirection )
return;
//adjust my props 'RowCount' and 'IsRowCountFinal'
if( aEvt.PropertyName == g_sPropertyNameForCount )
{//RowCount changed
//check value
sal_Int32 nNew = 0;
if( !( aEvt.NewValue >>= nNew ) )
{
OSL_FAIL( "PropertyChangeEvent contains wrong data" );
return;
}
impl_changeRowCount( aGuard, m_nKnownCount, nNew );
}
else if( aEvt.PropertyName == g_sPropertyNameForFinalCount )
{//IsRowCountFinal changed
//check value
bool bNew = false;
if( !( aEvt.NewValue >>= bNew ) )
{
OSL_FAIL( "PropertyChangeEvent contains wrong data" );
return;
}
impl_changeIsRowCountFinal( aGuard, m_bFinalCount, bNew );
}
return;
}
impl_notifyPropertyChangeListeners( aGuard, aEvt );
}
//virtual, only called from ContentResultSetWrapperListener
void CachedContentResultSet
::impl_vetoableChange( const PropertyChangeEvent& rEvt )
{
std::unique_lock aGuard(m_aMutex);
impl_EnsureNotDisposed(aGuard);
//don't notify events on my properties, cause they are not vetoable
if( CCRS_PropertySetInfo
::impl_isMyPropertyName( rEvt.PropertyName ) )
{
return;
}
PropertyChangeEvent aEvt( rEvt );
aEvt.Source = static_cast< XPropertySet * >( this );
aEvt.Further = false;
impl_notifyVetoableChangeListeners( aGuard, aEvt );
}
// XContentAccess methods. ( inherited ) ( -- position dependent )
#define XCONTENTACCESS_queryXXX( queryXXX, XXX, TYPE ) \
impl_EnsureNotDisposed(rGuard); \
sal_Int32 nRow = m_nRow; \
sal_Int32 nFetchSize = m_nFetchSize; \
sal_Int32 nFetchDirection = m_nFetchDirection; \
if( !m_aCache##XXX.hasRow( nRow ) ) \
{ \
try \
{ \
if( !m_aCache##XXX.hasCausedException( nRow ) ) \
{ \
if( !m_xFetchProviderForContentAccess.is() ) \
{ \
OSL_FAIL( "broadcaster was disposed already" ); \
throw RuntimeException(); \
} \
if( impl_isForwardOnly(rGuard) ) \
applyPositionToOrigin( rGuard, nRow ); \
\
FETCH_XXX( m_aCache##XXX, m_xFetchProviderForContentAccess, fetch##XXX##s ); \
} \
if( !m_aCache##XXX.hasRow( nRow ) ) \
{ \
applyPositionToOrigin( rGuard, nRow ); \
TYPE aRet = ContentResultSetWrapper::query##XXX();\
if( m_xContentIdentifierMapping.is() ) \
return m_xContentIdentifierMapping->map##XXX( aRet );\
return aRet; \
} \
} \
catch (const RuntimeException&) \
{ \
throw; \
} \
catch (const Exception& e) \
{ \
Any a(cppu::getCaughtException()); \
throw WrappedTargetRuntimeException( \
"wrapped Exception " + e.Message, \
Reference<XInterface>(), a); \
} \
} \
return m_aCache##XXX.get##XXX( nRow );
// virtual
OUString CachedContentResultSet
::queryContentIdentifierStringImpl(std::unique_lock<std::mutex>& rGuard)
{
XCONTENTACCESS_queryXXX( queryContentIdentifierString, ContentIdentifierString, OUString )
}
// virtual
Reference<XContentIdentifier> CachedContentResultSet
::queryContentIdentifierImpl(std::unique_lock<std::mutex>& rGuard)
{
XCONTENTACCESS_queryXXX( queryContentIdentifier, ContentIdentifier, Reference< XContentIdentifier > )
}
// virtual
Reference<XContent> CachedContentResultSet
::queryContentImpl(std::unique_lock<std::mutex>& rGuard)
{
XCONTENTACCESS_queryXXX( queryContent, Content, Reference< XContent > )
}
// XResultSet methods. ( inherited )
//virtual
sal_Bool SAL_CALL CachedContentResultSet
::next()
{
std::unique_lock aGuard(m_aMutex);
impl_EnsureNotDisposed(aGuard);
//after last
if( m_bAfterLast )
return false;
//last
aGuard.unlock();
if( isLast() )
{
aGuard.lock();
m_nRow++;
m_bAfterLast = true;
return false;
}
aGuard.lock();
//known valid position
if( impl_isKnownValidPosition( aGuard, m_nRow + 1 ) )
{
m_nRow++;
return true;
}
//unknown position
sal_Int32 nRow = m_nRow;
bool bValid = applyPositionToOrigin( aGuard, nRow + 1 );
m_nRow = nRow + 1;
m_bAfterLast = !bValid;
return bValid;
}
//virtual
sal_Bool SAL_CALL CachedContentResultSet
::previous()
{
std::unique_lock aGuard(m_aMutex);
impl_EnsureNotDisposed(aGuard);
if( impl_isForwardOnly(aGuard) )
throw SQLException();
//before first ?:
if( !m_bAfterLast && !m_nRow )
return false;
//first ?:
if( !m_bAfterLast && m_nKnownCount && m_nRow == 1 )
{
m_nRow--;
m_bAfterLast = false;
return false;
}
//known valid position ?:
if( impl_isKnownValidPosition( aGuard, m_nRow - 1 ) )
{
m_nRow--;
m_bAfterLast = false;
return true;
}
//unknown position:
sal_Int32 nRow = m_nRow;
bool bValid = applyPositionToOrigin( aGuard, nRow - 1 );
m_nRow = nRow - 1;
m_bAfterLast = false;
return bValid;
}
//virtual
sal_Bool SAL_CALL CachedContentResultSet
::absolute( sal_Int32 row )
{
std::unique_lock aGuard(m_aMutex);
impl_EnsureNotDisposed(aGuard);
if( !row )
throw SQLException();
if( impl_isForwardOnly(aGuard) )
throw SQLException();
if( !m_xResultSetOrigin.is() )
{
OSL_FAIL( "broadcaster was disposed already" );
return false;
}
if( row < 0 )
{
if( m_bFinalCount )
{
sal_Int32 nNewRow = m_nKnownCount + 1 + row;
bool bValid = true;
if( nNewRow <= 0 )
{
nNewRow = 0;
bValid = false;
}
m_nRow = nNewRow;
m_bAfterLast = false;
return bValid;
}
//unknown final count:
aGuard.unlock();
bool bValid = m_xResultSetOrigin->absolute( row );
aGuard.lock();
if( m_bFinalCount )
{
sal_Int32 nNewRow = m_nKnownCount + 1 + row;
if( nNewRow < 0 )
nNewRow = 0;
m_nLastAppliedPos = nNewRow;
m_nRow = nNewRow;
m_bAfterLastApplied = m_bAfterLast = false;
return bValid;
}
aGuard.unlock();
sal_Int32 nCurRow = m_xResultSetOrigin->getRow();
aGuard.lock();
m_nLastAppliedPos = nCurRow;
m_nRow = nCurRow;
m_bAfterLast = false;
return nCurRow != 0;
}
//row > 0:
if( m_bFinalCount )
{
if( row > m_nKnownCount )
{
m_nRow = m_nKnownCount + 1;
m_bAfterLast = true;
return false;
}
m_nRow = row;
m_bAfterLast = false;
return true;
}
//unknown new position:
aGuard.unlock();
bool bValid = m_xResultSetOrigin->absolute( row );
aGuard.lock();
if( m_bFinalCount )
{
sal_Int32 nNewRow = row;
if( nNewRow > m_nKnownCount )
{
nNewRow = m_nKnownCount + 1;
m_bAfterLastApplied = m_bAfterLast = true;
}
else
m_bAfterLastApplied = m_bAfterLast = false;
m_nLastAppliedPos = nNewRow;
m_nRow = nNewRow;
return bValid;
}
aGuard.unlock();
sal_Int32 nCurRow = m_xResultSetOrigin->getRow();
bool bIsAfterLast = m_xResultSetOrigin->isAfterLast();
aGuard.lock();
m_nLastAppliedPos = nCurRow;
m_nRow = nCurRow;
m_bAfterLastApplied = m_bAfterLast = bIsAfterLast;
return nCurRow && !bIsAfterLast;
}
//virtual
sal_Bool SAL_CALL CachedContentResultSet
::relative( sal_Int32 rows )
{
std::unique_lock aGuard(m_aMutex);
impl_EnsureNotDisposed(aGuard);
if( impl_isForwardOnly(aGuard) )
throw SQLException();
if( m_bAfterLast || impl_isKnownInvalidPosition( aGuard, m_nRow ) )
throw SQLException();
if( !rows )
return true;
sal_Int32 nNewRow = m_nRow + rows;
if( nNewRow < 0 )
nNewRow = 0;
if( impl_isKnownValidPosition( aGuard, nNewRow ) )
{
m_nRow = nNewRow;
m_bAfterLast = false;
return true;
}
else
{
//known invalid new position:
if( nNewRow == 0 )
{
m_bAfterLast = false;
m_nRow = 0;
return false;
}
if( m_bFinalCount && nNewRow > m_nKnownCount )
{
m_bAfterLast = true;
m_nRow = m_nKnownCount + 1;
return false;
}
//unknown new position:
bool bValid = applyPositionToOrigin( aGuard, nNewRow );
m_nRow = nNewRow;
m_bAfterLast = !bValid; // only nNewRow > 0 possible here
return bValid;
}
}
//virtual
sal_Bool SAL_CALL CachedContentResultSet
::first()
{
std::unique_lock aGuard(m_aMutex);
impl_EnsureNotDisposed(aGuard);
if( impl_isForwardOnly(aGuard) )
throw SQLException();
if( impl_isKnownValidPosition( aGuard, 1 ) )
{
m_nRow = 1;
m_bAfterLast = false;
return true;
}
if( impl_isKnownInvalidPosition( aGuard, 1 ) )
{
m_nRow = 1;
m_bAfterLast = false;
return false;
}
//unknown position
bool bValid = applyPositionToOrigin( aGuard, 1 );
m_nRow = 1;
m_bAfterLast = false;
return bValid;
}
//virtual
sal_Bool SAL_CALL CachedContentResultSet
::last()
{
std::unique_lock aGuard(m_aMutex);
impl_EnsureNotDisposed(aGuard);
if( impl_isForwardOnly(aGuard) )
throw SQLException();
if( m_bFinalCount )
{
m_nRow = m_nKnownCount;
m_bAfterLast = false;
return m_nKnownCount != 0;
}
//unknown position
if( !m_xResultSetOrigin.is() )
{
OSL_FAIL( "broadcaster was disposed already" );
return false;
}
aGuard.unlock();
bool bValid = m_xResultSetOrigin->last();
aGuard.lock();
m_bAfterLastApplied = m_bAfterLast = false;
if( m_bFinalCount )
{
m_nLastAppliedPos = m_nKnownCount;
m_nRow = m_nKnownCount;
return bValid;
}
aGuard.unlock();
sal_Int32 nCurRow = m_xResultSetOrigin->getRow();
aGuard.lock();
m_nLastAppliedPos = nCurRow;
m_nRow = nCurRow;
OSL_ENSURE( nCurRow >= m_nKnownCount, "position of last row < known Count, that could not be" );
m_nKnownCount = nCurRow;
m_bFinalCount = true;
return nCurRow != 0;
}
//virtual
void SAL_CALL CachedContentResultSet
::beforeFirst()
{
std::unique_lock aGuard(m_aMutex);
impl_EnsureNotDisposed(aGuard);
if( impl_isForwardOnly(aGuard) )
throw SQLException();
m_nRow = 0;
m_bAfterLast = false;
}
//virtual
void SAL_CALL CachedContentResultSet
::afterLast()
{
std::unique_lock aGuard(m_aMutex);
impl_EnsureNotDisposed(aGuard);
if( impl_isForwardOnly(aGuard) )
throw SQLException();
m_nRow = 1;
m_bAfterLast = true;
}
//virtual
sal_Bool SAL_CALL CachedContentResultSet
::isAfterLast()
{
std::unique_lock aGuard(m_aMutex);
impl_EnsureNotDisposed(aGuard);
if( !m_bAfterLast )
return false;
if( m_nKnownCount )
return m_bAfterLast;
if( m_bFinalCount )
return false;
if( !m_xResultSetOrigin.is() )
{
OSL_FAIL( "broadcaster was disposed already" );
return false;
}
aGuard.unlock();
//find out whether the original resultset contains rows or not
m_xResultSetOrigin->afterLast();
aGuard.lock();
m_bAfterLastApplied = true;
aGuard.unlock();
return m_xResultSetOrigin->isAfterLast();
}
//virtual
sal_Bool SAL_CALL CachedContentResultSet
::isBeforeFirst()
{
std::unique_lock aGuard(m_aMutex);
impl_EnsureNotDisposed(aGuard);
if( m_bAfterLast )
return false;
if( m_nRow )
return false;
if( m_nKnownCount )
return true;
if( m_bFinalCount )
return false;
if( !m_xResultSetOrigin.is() )
{
OSL_FAIL( "broadcaster was disposed already" );
return false;
}
aGuard.unlock();
//find out whether the original resultset contains rows or not
m_xResultSetOrigin->beforeFirst();
aGuard.lock();
m_bAfterLastApplied = false;
m_nLastAppliedPos = 0;
aGuard.unlock();
return m_xResultSetOrigin->isBeforeFirst();
}
//virtual
sal_Bool SAL_CALL CachedContentResultSet
::isFirst()
{
std::unique_lock aGuard(m_aMutex);
impl_EnsureNotDisposed(aGuard);
sal_Int32 nRow = 0;
Reference< XResultSet > xResultSetOrigin;
if( m_bAfterLast )
return false;
if( m_nRow != 1 )
return false;
if( m_nKnownCount )
return true;
if( m_bFinalCount )
return false;
nRow = m_nRow;
xResultSetOrigin = m_xResultSetOrigin;
//need to ask origin
if( !applyPositionToOrigin( aGuard, nRow ) )
return false;
aGuard.unlock();
return xResultSetOrigin->isFirst();
}
//virtual
sal_Bool SAL_CALL CachedContentResultSet
::isLast()
{
std::unique_lock aGuard(m_aMutex);
impl_EnsureNotDisposed(aGuard);
sal_Int32 nRow = 0;
Reference< XResultSet > xResultSetOrigin;
if( m_bAfterLast )
return false;
if( m_nRow < m_nKnownCount )
return false;
if( m_bFinalCount )
return m_nKnownCount && m_nRow == m_nKnownCount;
nRow = m_nRow;
xResultSetOrigin = m_xResultSetOrigin;
//need to ask origin
if( !applyPositionToOrigin( aGuard, nRow ) )
return false;
aGuard.unlock();
return xResultSetOrigin->isLast();
}
//virtual
sal_Int32 SAL_CALL CachedContentResultSet
::getRow()
{
std::unique_lock aGuard(m_aMutex);
impl_EnsureNotDisposed(aGuard);
if( m_bAfterLast )
return 0;
return m_nRow;
}
//virtual
void SAL_CALL CachedContentResultSet
::refreshRow()
{
std::unique_lock aGuard(m_aMutex);
impl_EnsureNotDisposed(aGuard);
//the ContentResultSet is static and will not change
//therefore we don't need to reload anything
}
//virtual
sal_Bool SAL_CALL CachedContentResultSet
::rowUpdated()
{
std::unique_lock aGuard(m_aMutex);
impl_EnsureNotDisposed(aGuard);
//the ContentResultSet is static and will not change
return false;
}
//virtual
sal_Bool SAL_CALL CachedContentResultSet
::rowInserted()
{
std::unique_lock aGuard(m_aMutex);
impl_EnsureNotDisposed(aGuard);
//the ContentResultSet is static and will not change
return false;
}
//virtual
sal_Bool SAL_CALL CachedContentResultSet
::rowDeleted()
{
std::unique_lock aGuard(m_aMutex);
impl_EnsureNotDisposed(aGuard);
//the ContentResultSet is static and will not change
return false;
}
//virtual
Reference< XInterface > SAL_CALL CachedContentResultSet
::getStatement()
{
std::unique_lock aGuard(m_aMutex);
impl_EnsureNotDisposed(aGuard);
//@todo ?return anything
return Reference< XInterface >();
}
// XRow methods. ( inherited )
//virtual
sal_Bool SAL_CALL CachedContentResultSet
::wasNull()
{
std::unique_lock aGuard(m_aMutex);
impl_EnsureNotDisposed(aGuard);
impl_init_xRowOrigin(aGuard);
if( m_bLastReadWasFromCache )
return m_bLastCachedReadWasNull;
if( !m_xRowOrigin.is() )
{
OSL_FAIL( "broadcaster was disposed already" );
return false;
}
aGuard.unlock();
return m_xRowOrigin->wasNull();
}
//virtual
OUString SAL_CALL CachedContentResultSet
::getString( sal_Int32 columnIndex )
{
return rowOriginGet<OUString>(&css::sdbc::XRow::getString, columnIndex);
}
//virtual
sal_Bool SAL_CALL CachedContentResultSet
::getBoolean( sal_Int32 columnIndex )
{
return rowOriginGet<sal_Bool>(&css::sdbc::XRow::getBoolean, columnIndex);
}
//virtual
sal_Int8 SAL_CALL CachedContentResultSet
::getByte( sal_Int32 columnIndex )
{
return rowOriginGet<sal_Int8>(&css::sdbc::XRow::getByte, columnIndex);
}
//virtual
sal_Int16 SAL_CALL CachedContentResultSet
::getShort( sal_Int32 columnIndex )
{
return rowOriginGet<sal_Int16>(&css::sdbc::XRow::getShort, columnIndex);
}
//virtual
sal_Int32 SAL_CALL CachedContentResultSet
::getInt( sal_Int32 columnIndex )
{
return rowOriginGet<sal_Int32>(&css::sdbc::XRow::getInt, columnIndex);
}
//virtual
sal_Int64 SAL_CALL CachedContentResultSet
::getLong( sal_Int32 columnIndex )
{
return rowOriginGet<sal_Int64>(&css::sdbc::XRow::getLong, columnIndex);
}
//virtual
float SAL_CALL CachedContentResultSet
::getFloat( sal_Int32 columnIndex )
{
return rowOriginGet<float>(&css::sdbc::XRow::getFloat, columnIndex);
}
//virtual
double SAL_CALL CachedContentResultSet
::getDouble( sal_Int32 columnIndex )
{
return rowOriginGet<double>(&css::sdbc::XRow::getDouble, columnIndex);
}
//virtual
Sequence< sal_Int8 > SAL_CALL CachedContentResultSet
::getBytes( sal_Int32 columnIndex )
{
return rowOriginGet< css::uno::Sequence<sal_Int8> >(
&css::sdbc::XRow::getBytes, columnIndex);
}
//virtual
Date SAL_CALL CachedContentResultSet
::getDate( sal_Int32 columnIndex )
{
return rowOriginGet<css::util::Date>(
&css::sdbc::XRow::getDate, columnIndex);
}
//virtual
Time SAL_CALL CachedContentResultSet
::getTime( sal_Int32 columnIndex )
{
return rowOriginGet<css::util::Time>(
&css::sdbc::XRow::getTime, columnIndex);
}
//virtual
DateTime SAL_CALL CachedContentResultSet
::getTimestamp( sal_Int32 columnIndex )
{
return rowOriginGet<css::util::DateTime>(
&css::sdbc::XRow::getTimestamp, columnIndex);
}
//virtual
Reference< css::io::XInputStream >
SAL_CALL CachedContentResultSet
::getBinaryStream( sal_Int32 columnIndex )
{
return rowOriginGet< css::uno::Reference<css::io::XInputStream> >(
&css::sdbc::XRow::getBinaryStream, columnIndex);
}
//virtual
Reference< css::io::XInputStream >
SAL_CALL CachedContentResultSet
::getCharacterStream( sal_Int32 columnIndex )
{
return rowOriginGet< css::uno::Reference<css::io::XInputStream> >(
&css::sdbc::XRow::getCharacterStream, columnIndex);
}
//virtual
Any SAL_CALL CachedContentResultSet
::getObject( sal_Int32 columnIndex,
const Reference<
css::container::XNameAccess >& typeMap )
{
//if you change this function please pay attention to
//function template rowOriginGet, where this is similar implemented
std::unique_lock aGuard(m_aMutex);
sal_Int32 nRow = m_nRow;
sal_Int32 nFetchSize = m_nFetchSize;
sal_Int32 nFetchDirection = m_nFetchDirection;
if( !m_aCache.hasRow( nRow ) )
{
if( !m_aCache.hasCausedException( nRow ) )
{
if( !m_xFetchProvider.is() )
{
OSL_FAIL( "broadcaster was disposed already" );
return Any();
}
impl_fetchData( aGuard, nRow, nFetchSize, nFetchDirection );
}
if( !m_aCache.hasRow( nRow ) )
{
m_bLastReadWasFromCache = false;
applyPositionToOrigin( aGuard, nRow );
impl_init_xRowOrigin(aGuard);
aGuard.unlock();
return m_xRowOrigin->getObject( columnIndex, typeMap );
}
}
//@todo: pay attention to typeMap
const Any& rValue = m_aCache.getAny( nRow, columnIndex );
m_bLastReadWasFromCache = true;
m_bLastCachedReadWasNull = !rValue.hasValue();
return rValue;
}
//virtual
Reference< XRef > SAL_CALL CachedContentResultSet
::getRef( sal_Int32 columnIndex )
{
return rowOriginGet< css::uno::Reference<css::sdbc::XRef> >(
&css::sdbc::XRow::getRef, columnIndex);
}
//virtual
Reference< XBlob > SAL_CALL CachedContentResultSet
::getBlob( sal_Int32 columnIndex )
{
return rowOriginGet< css::uno::Reference<css::sdbc::XBlob> >(
&css::sdbc::XRow::getBlob, columnIndex);
}
//virtual
Reference< XClob > SAL_CALL CachedContentResultSet
::getClob( sal_Int32 columnIndex )
{
return rowOriginGet< css::uno::Reference<css::sdbc::XClob> >(
&css::sdbc::XRow::getClob, columnIndex);
}
//virtual
Reference< XArray > SAL_CALL CachedContentResultSet
::getArray( sal_Int32 columnIndex )
{
return rowOriginGet< css::uno::Reference<css::sdbc::XArray> >(
&css::sdbc::XRow::getArray, columnIndex);
}
// Type Converter Support
const Reference< XTypeConverter >& CachedContentResultSet::getTypeConverter(std::unique_lock<std::mutex>& )
{
if ( !m_bTriedToGetTypeConverter && !m_xTypeConverter.is() )
{
m_bTriedToGetTypeConverter = true;
m_xTypeConverter.set( Converter::create(m_xContext) );
OSL_ENSURE( m_xTypeConverter.is(),
"PropertyValueSet::getTypeConverter() - "
"Service 'com.sun.star.script.Converter' n/a!" );
}
return m_xTypeConverter;
}
CachedContentResultSetFactory::CachedContentResultSetFactory(
const Reference< XComponentContext > & rxContext )
{
m_xContext = rxContext;
}
CachedContentResultSetFactory::~CachedContentResultSetFactory()
{
}
// CachedContentResultSetFactory XServiceInfo methods.
OUString SAL_CALL CachedContentResultSetFactory::getImplementationName()
{
return u"com.sun.star.comp.ucb.CachedContentResultSetFactory"_ustr;
}
sal_Bool SAL_CALL CachedContentResultSetFactory::supportsService( const OUString& ;ServiceName )
{
return cppu::supportsService( this, ServiceName );
}
css::uno::Sequence< OUString > SAL_CALL CachedContentResultSetFactory::getSupportedServiceNames()
{
return { u"com.sun.star.ucb.CachedContentResultSetFactory"_ustr };
}
// Service factory implementation.
extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
ucb_CachedContentResultSetFactory_get_implementation(
css::uno::XComponentContext* context , css::uno::Sequence<css::uno::Any> const&)
{
return cppu::acquire(new CachedContentResultSetFactory(context));
}
// CachedContentResultSetFactory XCachedContentResultSetFactory methods.
//virtual
Reference< XResultSet > SAL_CALL CachedContentResultSetFactory
::createCachedContentResultSet(
const Reference< XResultSet > & xSource,
const Reference< XContentIdentifierMapping > & xMapping )
{
Reference< XResultSet > xRet = new CachedContentResultSet( m_xContext, xSource, xMapping );
return xRet;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
