DependencyInfo


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3   * Copyright 2005, JBoss Inc., and individual contributors as indicated
4   * by the @authors tag. See the copyright.txt in the distribution for a
5   * full listing of individual contributors.
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7   * This is free software; you can redistribute it and/or modify it
8   * under the terms of the GNU Lesser General Public License as
9   * published by the Free Software Foundation; either version 2.1 of
10  * the License, or (at your option) any later version.
11  *
12  * This software is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with this software; if not, write to the Free
19  * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20  * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21  */
22  package org.jboss.dependency.spi;
23  
24  import java.util.Set  ;
25  
26  import org.jboss.util.JBossInterface;
27  
28  /**
29   * Information about dependencies.
30   * 
31   * @author <a HREF="adrian@jboss.com">Adrian Brock</a>
32   * @version $Revision: 45764 $
33   */
34  public interface DependencyInfo extends JBossInterface
35  {
36     /**
37      * Return what we depend upon
38      *
39      * @param type the class of the dependency or null for all types 
40      * @return our dependencies
41      */
42     Set  <DependencyItem> getIDependOn(Class   type);
43  
44     /**
45      * Return what depends upon me
46      * 
47      * @param type the class of the dependency or null for all types 
48      * @return what depends upon this
49      */
50     Set  <DependencyItem> getDependsOnMe(Class   type);
51  
52     /**
53      * Add a dependency
54      * 
55      * @param dependency the dependency to add
56      */
57     void addIDependOn(DependencyItem dependency);
58  
59     /**
60      * Remove a dependency
61      * 
62      * @param dependency the dependency to remove
63      */
64     void removeIDependOn(DependencyItem dependency);
65  
66     /**
67      * Add a dependency reference
68      * 
69      * @param dependency the dependency to add
70      */
71     void addDependsOnMe(DependencyItem dependency);
72  
73     /**
74      * Remove a dependency reference
75      * 
76      * @param dependency the dependency to remove
77      */
78     void removeDependsOnMe(DependencyItem dependency);
79  
80     /**
81      * Try to resolve dependencies
82      * 
83      * @param controller the controller
84      * @param state the state of dependency to resolve
85      * @return true when all dependencies are resolved
86      */
87     boolean resolveDependencies(Controller controller, ControllerState state);
88     
89     /**
90      * Return the unresolved dependencies
91      * 
92      * @return our unresolved dependencies
93      */
94     Set  <DependencyItem> getUnresolvedDependencies();
95  }
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