Difference between revisions of "HelperNotHelper"
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Revision as of 12:06, 17 April 2008
It's important to figure out the difference beween class implementing component when you use or not an helper.
Class without Helper
Here is the C++ code
class MyCounterImpl : public XCountable, public XServiceInfo { sal_Int32 m_nRefCount; sal_Int32 m_nCount; public: MyCounterImpl( const Reference< XMultiServiceFactory > & xServiceManager ); ~MyCounterImpl(); // XInterface implementation virtual void SAL_CALL acquire() throw (); virtual void SAL_CALL release() throw (); virtual Any SAL_CALL queryInterface( const Type & rType ) throw (RuntimeException); // XServiceInfo implementation virtual OUString SAL_CALL getImplementationName( ) throw(RuntimeException); virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) throw(RuntimeException); virtual Sequence< OUString > SAL_CALL getSupportedServiceNames( ) throw(RuntimeException); static Sequence< OUString > SAL_CALL getSupportedServiceNames_Static( ); // XCountable implementation virtual sal_Int32 SAL_CALL getCount() throw (RuntimeException); virtual void SAL_CALL setCount( sal_Int32 nCount ) throw (RuntimeException); virtual sal_Int32 SAL_CALL increment() throw (RuntimeException); virtual sal_Int32 SAL_CALL decrement() throw (RuntimeException); };
Class with an Helper
Here is the code
class MyCounterImpl : public ::cppu::WeakImplHelper2< XCountable, XServiceInfo > { // to obtain other services if needed Reference< XMultiServiceFactory > m_xServiceManager; sal_Int32 m_nRefCount; sal_Int32 m_nCount; public: // XServiceInfo implementation virtual OUString SAL_CALL getImplementationName( ) throw(RuntimeException); virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) throw(RuntimeException); virtual Sequence< OUString > SAL_CALL getSupportedServiceNames( ) throw(RuntimeException); static Sequence< OUString > SAL_CALL getSupportedServiceNames_Static( ); // XCountable implementation virtual sal_Int32 SAL_CALL getCount() throw (RuntimeException); virtual void SAL_CALL setCount( sal_Int32 nCount ) throw (RuntimeException); virtual sal_Int32 SAL_CALL increment() throw (RuntimeException); virtual sal_Int32 SAL_CALL decrement() throw (RuntimeException); };
Go back to Constructing Components.
