/* This file is part of the db4o object database http://www.db4o.com
Copyright (C) 2004 - 2011 Versant Corporation http://www.versant.com
db4o is free software; you can redistribute it and/or modify it under
the terms of version 3 of the GNU General Public License as published
by the Free Software Foundation.
db4o 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 General Public License
for more details.
You should have received a copy of the GNU General Public License along
with this program. If not, see http://www.gnu.org/licenses/. */
package com.db4o.activation;
/**
* Activator interface.<br>
* <br><br>{@link com.db4o.ta.Activatable} objects need to have a reference to
* an Activator implementation, which is called
* by Transparent Activation, when a request is received to
* activate the host object.
* @see <a href="http://developer.db4o.com/resources/view.aspx/reference/Object_Lifecycle/Activation/Transparent_Activation_Framework">Transparent Activation framework.</a>
*/
public interface Activator {
/**
* Method to be called to activate the host object.
*
* @param purpose for which purpose is the object being activated? {@link ActivationPurpose#WRITE} will cause the object
* to be saved on the next {@link com.db4o.ObjectContainer#commit} operation.
*/
void activate(ActivationPurpose purpose);
}