001    /*
002      Copyright (C) 2001-2002 Laurent Martelli <laurent@aopsys.com>
003      
004      This program is free software; you can redistribute it and/or modify
005      it under the terms of the GNU Lesser General Public License as
006      published by the Free Software Foundation; either version 2 of the
007      License, or (at your option) any later version.
008    
009      This program is distributed in the hope that it will be useful, but
010      WITHOUT ANY WARRANTY; without even the implied warranty of
011      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
012      Lesser General Public License for more details.
013    
014      You should have received a copy of the GNU Lesser General Public
015      License along with this program; if not, write to the Free Software
016      Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
017      USA */
018    
019    package org.objectweb.jac.aspects.gui;
020    
021    import org.objectweb.jac.core.rtti.CollectionItem;
022    
023    
024    /**
025     * An abstract representation of a collection. */
026    
027    public interface CollectionModel extends Model {
028       /**
029        * Gets the number of rows of this collection. 
030        * @return the number of rows
031        */ 
032       int getRowCount();
033    
034       /**
035        * Returns the object at the row represented by the given index.
036        *
037        * @param index a row index */
038       Object getObject(int index);
039    
040       /**
041        * Returns the index of an object in the collection
042        * @param object the object whose index to find
043        * @return the index of object, or -1 if the object is not in the
044        * collection
045        */
046       int indexOf(Object object);
047    
048       /**
049        * Get the collection item represented by the model
050        * @return a collection item
051        */
052       CollectionItem getCollection();
053    }