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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef __FRAMEWORK_HELPER_OCOMPONENTENUMERATION_HXX_
#define __FRAMEWORK_HELPER_OCOMPONENTENUMERATION_HXX_
//_________________________________________________________________________________________________________________
// my own includes
//_________________________________________________________________________________________________________________
#ifndef __FRAMEWORK_OMUTEXMEMBER_HXX_
#include <threadhelp/threadhelpbase.hxx>
#endif
#include <macros/generic.hxx>
#include <macros/xinterface.hxx>
#include <macros/xtypeprovider.hxx>
#include <macros/debug.hxx>
#include <general.h>
//_________________________________________________________________________________________________________________
// interface includes
//_________________________________________________________________________________________________________________
#include <com/sun/star/lang/XEventListener.hpp>
#include <com/sun/star/container/XEnumeration.hpp>
#include <com/sun/star/lang/XComponent.hpp>
//_________________________________________________________________________________________________________________
// other includes
//_________________________________________________________________________________________________________________
#include <cppuhelper/implbase2.hxx>
//_________________________________________________________________________________________________________________
// namespace
//_________________________________________________________________________________________________________________
namespace framework{
//_________________________________________________________________________________________________________________
// exported const
//_________________________________________________________________________________________________________________
//_________________________________________________________________________________________________________________
// exported definitions
//_________________________________________________________________________________________________________________
/*-************************************************************************************************************//**
@short implement a helper for a oneway enumeration of components
@descr You can step during this list only for one time! Its a snapshot.
Don't forget to release the reference. You are the owner of an instance of this implementation.
You cant use this as a baseclass. Please use it as a dynamical object for return.
@implements XInterface
XTypeProvider
XEventListener
XEnumeration
@base ThreadHelpBase
OWeakObject
@devstatus ready to use
@threadsafe yes
*//*-*************************************************************************************************************/
class OComponentEnumeration : public ThreadHelpBase ,
public ::cppu::WeakImplHelper2< ::com::sun::star::container::XEnumeration,::com::sun::star::lang::XEventListener >
{
//-------------------------------------------------------------------------------------------------------------
// public methods
//-------------------------------------------------------------------------------------------------------------
public:
//---------------------------------------------------------------------------------------------------------
// constructor / destructor
//---------------------------------------------------------------------------------------------------------
/*-****************************************************************************************************//**
@short constructor to initialize this enumeration
@descr An enumeration is a list with oneway-access! You can get every member only for one time.
This method allow to initialize this oneway list with values.
@seealso -
@param "seqComponents" is a sequence of interfaces, which are components.
@return -
@onerror Do nothing and reset this object to default with an empty list.
*//*-*****************************************************************************************************/
OComponentEnumeration( const css::uno::Sequence< css::uno::Reference< css::lang::XComponent > >& seqComponents );
//---------------------------------------------------------------------------------------------------------
// XEventListener
//---------------------------------------------------------------------------------------------------------
/*-****************************************************************************************************//**
@short last chance to release all references and free memory
@descr This method is called, if the enumeration is used completly and has no more elements.
Then we must destroy ouer list and release all references to other objects.
@seealso interface XEventListener
@param "aEvent" describe the source of this event.
@return -
@onerror -
*//*-*****************************************************************************************************/
virtual void SAL_CALL disposing( const css::lang::EventObject& aEvent ) throw( css::uno::RuntimeException );
//---------------------------------------------------------------------------------------------------------
// XEnumeration
//---------------------------------------------------------------------------------------------------------
/*-****************************************************************************************************//**
@short check count of accessible elements of enumeration
@descr You can call this method to get information about accessible elements in future.
Elements you have already getted are not accessible!
@seealso interface XEnumeration
@param -
@return sal_True = if more elements accessible<BR>
sal_False = other way
@onerror sal_False<BR>
(List is emtpy and there no accessible elements ...)
*//*-*****************************************************************************************************/
virtual sal_Bool SAL_CALL hasMoreElements() throw( css::uno::RuntimeException );
/*-****************************************************************************************************//**
@short give the next element, if some exist
@descr If a call "hasMoreElements()" return true, you can get the next element of list.
@seealso interface XEnumeration
@param -
@return A Reference to a component, safed in an Any-structure.
@onerror If end of enumeration is arrived or there are no elements in list => a NoSuchElementException is thrown.
*//*-*****************************************************************************************************/
virtual css::uno::Any SAL_CALL nextElement() throw( css::container::NoSuchElementException ,
css::lang::WrappedTargetException ,
css::uno::RuntimeException );
//-------------------------------------------------------------------------------------------------------------
// protected methods
//-------------------------------------------------------------------------------------------------------------
protected:
/*-****************************************************************************************************//**
@short standard destructor
@descr This method destruct an instance of this class and clear some member.
We make it protected, because its not supported to use this class as normal instance!
You must create it dynamical in memory and use a pointer.
@seealso -
@param -
@return -
@onerror -
*//*-*****************************************************************************************************/
virtual ~OComponentEnumeration();
/*-****************************************************************************************************//**
@short reset instance to default values
@descr There are two ways to delete an instance of this class.<BR>
1) delete with destructor<BR>
2) dispose from parent or factory ore ...<BR>
This method do the same for both ways! It free used memory and release references ...
@seealso method dispose()
@seealso destructor ~TaskEnumeration()
@param -
@return -
@onerror -
*//*-*****************************************************************************************************/
virtual void impl_resetObject();
//-------------------------------------------------------------------------------------------------------------
// private methods
//-------------------------------------------------------------------------------------------------------------
private:
//-------------------------------------------------------------------------------------------------------------
// debug methods
// (should be private everyway!)
//-------------------------------------------------------------------------------------------------------------
/*-****************************************************************************************************//**
@short debug-method to check incoming parameter of some other mehods of this class
@descr The following methods are used to check parameters for other methods
of this class. The return value is used directly for an ASSERT(...).
@seealso ASSERT in implementation!
@param references to checking variables
@return sal_False on invalid parameter<BR>
sal_True otherway
@onerror -
*//*-*****************************************************************************************************/
#ifdef ENABLE_ASSERTIONS
private:
static sal_Bool impldbg_checkParameter_OComponentEnumerationCtor ( const css::uno::Sequence< css::uno::Reference< css::lang::XComponent > >& seqComponents );
static sal_Bool impldbg_checkParameter_disposing ( const css::lang::EventObject& aEvent );
#endif // #ifdef ENABLE_ASSERTIONS
//-------------------------------------------------------------------------------------------------------------
// variables
// (should be private everyway!)
//-------------------------------------------------------------------------------------------------------------
private:
sal_uInt32 m_nPosition ; /// current position in enumeration
css::uno::Sequence< css::uno::Reference< css::lang::XComponent > > m_seqComponents ; /// list of current components
}; // class OComponentEnumeration
} // namespace framework
#endif // #ifndef __FRAMEWORK_HELPER_OCOMPONENTENUMERATION_HXX_
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