/*
* Copyright 2015 (C) Tom Parker <thpr@users.sourceforge.net>
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* This 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 Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package pcgen.cdom.base;
/**
* An ItemFacet is a Facet that stores a single item per identifier.
*
* @param <IDT>
* The Identifier Type used to set and store objects from the
* ItemFacet
* @param <T>
* The Type of object stored (per identifier) in the ItemFacet
*/
public interface ItemFacet<IDT, T>
{
/**
* Returns the object stored in the ItemFacet for the given Identifier.
*
* It is expected that null is a legal response from an ItemFacet, as there
* is no guarantee an item has been set for the given Identifier.
*
* @param id
* The identifier used to identify the object to be returned by
* the ItemFacet
* @return the object stored in the ItemFacet for the given Identifier
*/
public T get(IDT id);
}