Quelle paramwrapper.hxx Sprache: C

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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#ifndef INCLUDED_CONNECTIVITY_PARAMWRAPPER_HXX
#define INCLUDED_CONNECTIVITY_PARAMWRAPPER_HXX

#include <config_options.h>
#include <connectivity/dbtoolsdllapi.hxx>
#include <connectivity/FValue.hxx>

#include <com/sun/star/container/XIndexAccess.hpp>
#include <com/sun/star/container/XEnumerationAccess.hpp>

#include <comphelper/uno3.hxx>
#include <comphelper/broadcasthelper.hxx>
#include <cppuhelper/weak.hxx>
#include <cppuhelper/propshlp.hxx>
#include <comphelper/compbase.hxx>

#include <memory>
#include <vector>

namespace com::sun::star::sdbc { class XParameters; }
namespace com::sun::star::sdb { class XSingleSelectQueryAnalyzer; }

namespace dbtools::param
{

    //= ParameterWrapper

    /** wraps a parameter column as got from an SQLQueryComposer, so that it has an additional
        property "Value", which is forwarded to an XParameters interface
    */
    class OOO_DLLPUBLIC_DBTOOLS ParameterWrapper final : public ::cppu::OWeakObject
                            ,public css::lang::XTypeProvider
                            ,public ::comphelper::OMutexAndBroadcastHelper
                            ,public ::cppu::OPropertySetHelper
    {
    private:
        typedef ::cppu::OWeakObject         UnoBase;
        typedef ::cppu::OPropertySetHelper  PropertyBase;

    private:
        /// the most recently set value of the parameter
        ::connectivity::ORowSetValue    m_aValue;
        /// the positions (in our m_xValueDestination) at which the value should be set (0-based!)
        ::std::vector< sal_Int32 >      m_aIndexes;

        /// the "delegator" column to which standard property requests are forwarded
        css::uno::Reference< css::beans::XPropertySet >       m_xDelegator;
        /// the property set info for our delegator
        css::uno::Reference< css::beans::XPropertySetInfo >   m_xDelegatorPSI;
        /// the component taking the value
        css::uno::Reference< css::sdbc::XParameters >         m_xValueDestination;
        /// helper for implementing XPropertySetInfo
        ::std::unique_ptr< ::cppu::OPropertyArrayHelper >     m_pInfoHelper;

    public:
        const ::connectivity::ORowSetValue& Value() const { return m_aValue; }
              ::connectivity::ORowSetValue& Value()       { return m_aValue; }

    public:
        ParameterWrapper(
            const css::uno::Reference< css::beans::XPropertySet >& _rxColumn
        );

        ParameterWrapper(
            const css::uno::Reference< css::beans::XPropertySet >& _rxColumn,
            const css::uno::Reference< css::sdbc::XParameters >& _rxAllParameters,
            std::vector< sal_Int32 >&& _rIndexes
        );

        DECLARE_XINTERFACE()

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

        // XPropertySet
        virtual css::uno::Reference< css::beans::XPropertySetInfo > SAL_CALL getPropertySetInfo() override;
        virtual ::cppu::IPropertyArrayHelper& SAL_CALL getInfoHelper() override;

        // OPropertySetHelper
        virtual sal_Bool SAL_CALL convertFastPropertyValue( css::uno::Any& rConvertedValue, css::uno::Any& rOldValue, sal_Int32 nHandle, const css::uno::Any& rValue) override;
        virtual void SAL_CALL setFastPropertyValue_NoBroadcast( sal_Int32 nHandle, const css::uno::Any& rValue ) override;
        virtual void SAL_CALL getFastPropertyValue( css::uno::Any& rValue, sal_Int32 nHandle ) const override;

        // pseudo-XComponent
        void dispose();

    private:
        virtual ~ParameterWrapper() override;

        // disambiguations
        using ::cppu::OPropertySetHelper::getFastPropertyValue;

        OUString impl_getPseudoAggregatePropertyName( sal_Int32 _nHandle ) const;
    };

    //= ParameterWrapper

    typedef ::std::vector< ::rtl::Reference< ParameterWrapper > >   Parameters;

    //= ParameterWrapperContainer

    typedef ::comphelper::WeakComponentImplHelper    <   css::container::XIndexAccess
                                               ,   css::container::XEnumerationAccess
                                               >   ParameterWrapperContainer_Base;

    /// class for the parameter event @see approveParameter
    class UNLESS_MERGELIBS_MORE(OOO_DLLPUBLIC_DBTOOLS) ParameterWrapperContainer final :
        public ParameterWrapperContainer_Base
    {
    private:
        Parameters      m_aParameters;

        virtual ~ParameterWrapperContainer() override;

    public:
        /** creates an empty container
        */
        ParameterWrapperContainer();

        /** creates a container from a SingleSelectQuerAnalyzer's parameter columns

            Note that here, the simple constructor of the ParameterWrapper will be used, which does not
            use a XParameters instance to forward values to, but only remembers the values itself.
        */
        ParameterWrapperContainer( const css::uno::Reference< css::sdb::XSingleSelectQueryAnalyzer >& _rxComposer );

        // css::container::XElementAccess
        virtual css::uno::Type SAL_CALL getElementType() override;
        virtual sal_Bool SAL_CALL hasElements() override;

        // css::container::XEnumerationAccess
        virtual css::uno::Reference< css::container::XEnumeration > SAL_CALL createEnumeration() override;

        // css::container::XIndexAccess
        virtual sal_Int32 SAL_CALL getCount() override;
        virtual css::uno::Any SAL_CALL getByIndex(sal_Int32 _rIndex) override;

    public:
        const Parameters& getParameters() const { return m_aParameters; }

        const ::connectivity::ORowSetValue& operator[]( size_t _index ) const { return m_aParameters[ _index ]->Value(); }
              ::connectivity::ORowSetValue& operator[]( size_t _index )       { return m_aParameters[ _index ]->Value(); }

        /** adds a ParameterWrapper to the end of the array
        */
        void    push_back( ParameterWrapper* _pParameter )
        {
            m_aParameters.push_back( _pParameter );
        }

        size_t  size() const { return m_aParameters.size(); }

    private:
        // XComponent
        virtual void disposing(std::unique_lock<std::mutex>& rGuard) override;

        void    impl_checkDisposed_throw();
    };

    //= ParametersContainer

    typedef ::rtl::Reference< ParameterWrapperContainer >   ParametersContainerRef;

} // namespace dbtools::param

#endif // INCLUDED_CONNECTIVITY_PARAMWRAPPER_HXX

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