cachedcontentresultsetstub.hxx

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 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
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#ifndef INCLUDED_UCB_SOURCE_CACHER_CACHEDCONTENTRESULTSETSTUB_HXX
#define INCLUDED_UCB_SOURCE_CACHER_CACHEDCONTENTRESULTSETSTUB_HXX

#include "contentresultsetwrapper.hxx"
#include <com/sun/star/lang/XTypeProvider.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/ucb/XFetchProvider.hpp>
#include <com/sun/star/ucb/XFetchProviderForContentAccess.hpp>
#include <com/sun/star/ucb/XCachedContentResultSetStubFactory.hpp>

#define CACHED_CRS_STUB_SERVICE_NAME "com.sun.star.ucb.CachedContentResultSetStub"
#define CACHED_CRS_STUB_FACTORY_NAME "com.sun.star.ucb.CachedContentResultSetStubFactory"


class CachedContentResultSetStub
                : public ContentResultSetWrapper
                , public css::lang::XTypeProvider
                , public css::lang::XServiceInfo
                , public css::ucb::XFetchProvider
                , public css::ucb::XFetchProviderForContentAccess
{
private:
    sal_Int32       m_nColumnCount;
    bool        m_bColumnCountCached;

    //members to propagate fetchsize and direction:
    bool        m_bNeedToPropagateFetchSize;
    bool        m_bFirstFetchSizePropagationDone;
    sal_Int32       m_nLastFetchSize;
    bool        m_bLastFetchDirection;
    const OUString     m_aPropertyNameForFetchSize;
    const OUString     m_aPropertyNameForFetchDirection;

    void
    impl_getCurrentRowContent(
        css::uno::Any& rRowContent,
        const css::uno::Reference< css::sdbc::XRow >& xRow );

    sal_Int32
    impl_getColumnCount();

    static void
    impl_getCurrentContentIdentifierString(
            css::uno::Any& rAny
            , const css::uno::Reference< css::ucb::XContentAccess >& xContentAccess );

    static void
    impl_getCurrentContentIdentifier(
            css::uno::Any& rAny
            , const css::uno::Reference< css::ucb::XContentAccess >& xContentAccess );

    static void
    impl_getCurrentContent(
            css::uno::Any& rAny
            , const css::uno::Reference< css::ucb::XContentAccess >& xContentAccess );

    void
    impl_propagateFetchSizeAndDirection( sal_Int32 nFetchSize, bool bFetchDirection );

    css::ucb::FetchResult impl_fetchHelper(sal_Int32 nRowStartPosition, sal_Int32 nRowCount, bool bDirection,
        std::function<void(css::uno::Any& rRowContent)> impl_loadRow);

public:
    CachedContentResultSetStub( css::uno::Reference< css::sdbc::XResultSet > const & xOrigin );

    virtual ~CachedContentResultSetStub() override;


    // XInterface
    virtual css::uno::Any SAL_CALL queryInterface( const css::uno::Type & rType ) override;
    virtual void SAL_CALL acquire()
        throw() override;
    virtual void SAL_CALL release()
        throw() override;

    // own inherited

    virtual void
    impl_propertyChange( const css::beans::PropertyChangeEvent& evt ) override;

    virtual void
    impl_vetoableChange( const css::beans::PropertyChangeEvent& aEvent ) override;

    // XTypeProvider

    virtual css::uno::Sequence< sal_Int8 > SAL_CALL getImplementationId() override;
    virtual css::uno::Sequence< css::uno::Type > SAL_CALL getTypes() override;

    // XServiceInfo
    virtual OUString SAL_CALL getImplementationName() override;
    virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
    virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;

    // XFetchProvider


    virtual css::ucb::FetchResult SAL_CALL
    fetch( sal_Int32 nRowStartPosition
        , sal_Int32 nRowCount, sal_Bool bDirection ) override;


    // XFetchProviderForContentAccess

    virtual css::ucb::FetchResult SAL_CALL
         fetchContentIdentifierStrings( sal_Int32 nRowStartPosition
        , sal_Int32 nRowCount, sal_Bool bDirection ) override;

    virtual css::ucb::FetchResult SAL_CALL
         fetchContentIdentifiers( sal_Int32 nRowStartPosition
        , sal_Int32 nRowCount, sal_Bool bDirection ) override;

    virtual css::ucb::FetchResult SAL_CALL
         fetchContents( sal_Int32 nRowStartPosition
        , sal_Int32 nRowCount, sal_Bool bDirection ) override;
};


class CachedContentResultSetStubFactory final
                : public cppu::OWeakObject
                , public css::lang::XTypeProvider
                , public css::lang::XServiceInfo
                , public css::ucb::XCachedContentResultSetStubFactory
{
public:

    CachedContentResultSetStubFactory();

    virtual ~CachedContentResultSetStubFactory() override;


    // XInterface
    virtual css::uno::Any SAL_CALL queryInterface( const css::uno::Type & rType ) override;
    virtual void SAL_CALL acquire()
        throw() override;
    virtual void SAL_CALL release()
        throw() override;

    // XTypeProvider
    virtual css::uno::Sequence< sal_Int8 > SAL_CALL getImplementationId() override;
    virtual css::uno::Sequence< css::uno::Type > SAL_CALL getTypes() override;


    // XServiceInfo
    virtual OUString SAL_CALL getImplementationName() override;
    virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
    virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;

    static OUString getImplementationName_Static();
    static css::uno::Sequence< OUString > getSupportedServiceNames_Static();

    static css::uno::Reference< css::lang::XSingleServiceFactory >
    createServiceFactory( const css::uno::Reference<
                          css::lang::XMultiServiceFactory >& rxServiceMgr );

    // XCachedContentResultSetStubFactory

    virtual css::uno::Reference< css::sdbc::XResultSet > SAL_CALL
    createCachedContentResultSetStub(
                const css::uno::Reference< css::sdbc::XResultSet > & xSource ) override;
};

#endif

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