Source: sysadm/ParentCategoryListener.h
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//
// ParentCategoryListener.h
//
// Class for monitoring changes in a parent Item for an Association.
//
//
// Copyright (c) 1998, 2000 Silicon Graphics, Inc. All Rights Reserved.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of version 2.1 of the GNU Lesser General Public
// License as published by the Free Software Foundation.
//
// This program is distributed in the hope that it would be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
//
// Further, this software is distributed without any warranty that it is
// free of the rightful claim of any third person regarding infringement
// or the like. Any license provided herein, whether implied or
// otherwise, applies only to this software file. Patent licenses, if
// any, provided herein do not apply to combinations of this program
// with other software, or any other product whatsoever.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this program; if not, write the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307,
// USA.
//
// Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
// Mountain View, CA 94043, or http://www.sgi.com/
//
// For further information regarding this notice, see:
// http://oss.sgi.com/projects/GenInfo/NoticeExplan/
//
#ident "$Revision: 1.6 $"
#ifndef _SYSADM_PARENT_CATEGORY_LISTENER_H
#define _SYSADM_PARENT_CATEGORY_LISTENER_H
#include <sysadm/CategoryListener.h>
#include <sysadm/Association.h>
BEGIN_NAMESPACE(sysadm);
/**
* Class for monitoring changes in a parent Item for an Association.
* For internal use by Association.
*/
class ParentCategoryListener : public CategoryListener {
public:
/**
* For logging.
*/
static const char* NAME;
/**
* Constructor.
*/
ParentCategoryListener(Category& parentCategory,
const String& parentSelector,
Association& assoc);
/**
* Destructor.
*/
virtual ~ParentCategoryListener();
/**
* Called by Category after an Item has been added or
* detected at startup.
*/
virtual void itemAdded(const Item& item);
/**
* Called by Category when an Item changes.
*/
virtual void itemChanged(const Item& oldItem, const Item& newItem);
/**
* Called by Category when an Item is removed.
*/
virtual void itemRemoved(const Item& item);
/**
* Called by Category prior to a block of
* changes. For example,
* Category::replaceItemList() calls
* beginBlockChanges() before changing the list.
*/
virtual void beginBlockChanges();
/**
* Called by Category after a block of changes.
*/
virtual void endBlockChanges();
/**
* Called by Category after notification of current state.
*/
virtual void endExists();
/**
* Called by Category after a Category attribute
* has been added or detected at startup
*/
virtual void attrChanged(const AttrEvent& event);
private:
Association& _assoc;
Category& _cat;
CategoryListenerHandle* _handle;
};
END_NAMESPACE(sysadm);
#endif // _SYSADM_PARENT_CATEGORY_LISTENER_H
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