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[simantics/platform.git] / bundles / org.simantics.db.layer0 / src / org / simantics / db / layer0 / service / ActivationManager.java
1 /*******************************************************************************
2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
3  * in Industry THTH ry.
4  * All rights reserved. This program and the accompanying materials
5  * are made available under the terms of the Eclipse Public License v1.0
6  * which accompanies this distribution, and is available at
7  * http://www.eclipse.org/legal/epl-v10.html
8  *
9  * Contributors:
10  *     VTT Technical Research Centre of Finland - initial API and implementation
11  *******************************************************************************/
12 package org.simantics.db.layer0.service;
13
14 import java.util.Collection;
15
16 import org.simantics.db.RequestProcessor;
17 import org.simantics.db.Resource;
18 import org.simantics.db.exception.DatabaseException;
19 import org.simantics.db.layer0.adapter.Activation;
20
21 /**
22  * Manages trigger activations.
23  * This is a Session service. Acquire it 
24  * by calling Session.getService(ActivationManager.class).
25  */
26 public interface ActivationManager {
27         
28         /**
29          * Activates all triggers attached to the resource
30          * (by HasTrigger-relation). A trigger is active
31          * as long as there is one or more activations 
32          * referring to it. 
33          */
34         Collection<Activation> activate(RequestProcessor processor, Resource resource) throws DatabaseException;
35         
36         //Activation activate(Resource resource);
37         
38 }