Context.hpp
#if !defined (__CONTEXT_HPP)
#define __CONTEXT_HPP
/*
CoreLinux++
Copyright (C) 1999,2000 CoreLinux Consortium
The CoreLinux++ Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The CoreLinux++ Library Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#if !defined(__COMMON_HPP)
#include <Context.hpp>
#endif
namespace corelinux
{
DECLARE_CLASS( State );
DECLARE_CLASS( Context );
class Context
{
public:
Context( void );
Context( ContextCref );
virtual ~Context( void );
//
// Operator overloads
//
ContextRef operator=( ContextCref );
bool operator==( ContextCref ) const;
//
// Mutators
//
virtual void request( void ) throw ( NullPointerException );
virtual void changeState( StatePtr );
protected:
//
// Accessors
//
StatePtr getState( void ) const;
//
// Mutators
//
void setState( StatePtr );
private:
StatePtr theState;
};
}
#endif // if !defined(__CONTEXT_HPP)
/*
Common rcs information do not modify
$Author: frankc $
$Revision: 1.1 $
$Date: 2000/05/17 03:43:30 $
$Locker: $
*/
corelinux::State
Allow an object to alter its behavior when its internal state changes.
Definition: State.hpp:40
corelinux::Context::setState
void setState(StatePtr)
Set the state instance.
Definition: Context.cpp:112
corelinux::Context::getState
StatePtr getState(void) const
Retrieve the state instance.
Definition: Context.cpp:105
corelinux::Context::Context
Context(void)
Default Constructor.
Definition: Context.cpp:37
corelinux::Context::operator==
bool operator==(ContextCref) const
Equality operator overload.
Definition: Context.cpp:77
corelinux::Context::changeState
virtual void changeState(StatePtr)
Change the state of the context.
Definition: Context.cpp:98
corelinux::NullPointerException
NullPointerException is the base exception type for NullPointer.
Definition: NullPointerException.hpp:40
corelinux::Context::~Context
virtual ~Context(void)
Virtual Destructor.
Definition: Context.cpp:55
corelinux::Context
Context defines the interface to clients and maintains an instance of a State subclass.
Definition: Context.hpp:40
corelinux::Context::operator=
ContextRef operator=(ContextCref)
Assignment operator overload.
Definition: Context.cpp:62
corelinux::Context::request
virtual void request(void)
Invoke a context request which is delegated to State.
Definition: Context.cpp:84

This is the CoreLinux++ reference manual
Provided by The CoreLinux Consortium