IBundleGroup


1   /*******************************************************************************
2    * Copyright (c) 2004, 2006 IBM Corporation and others.
3    * All rights reserved. This program and the accompanying materials
4    * are made available under the terms of the Eclipse Public License v1.0
5    * which accompanies this distribution, and is available at
6    * http://www.eclipse.org/legal/epl-v10.html
7    * 
8    * Contributors:
9    *     IBM Corporation - initial API and implementation
10   *******************************************************************************/
11  package org.eclipse.core.runtime;
12  
13  import org.osgi.framework.Bundle;
14  
15  /**
16   * Bundle groups represent a logical collection of plug-ins (aka bundles).  Bundle
17   * groups do not contain their constituents but rather collect them together under
18   * a common label.  The main role of a bundle group is to report to the system
19   * (e.g., the About dialog) what bundles have been installed.  They are not intended
20   * for use in managing the set of bundles they represent.
21   * <p>
22   * Since the bulk of the branding related information is specific to the consumer, 
23   * bundle groups also carry an arbitrary set of properties.  The valid set of 
24   * key-value pairs and their interpretation defined by the consumer in the 
25   * target environment.
26   * </p><p>
27   * The Eclipse UI is the typical consumer of bundle groups and defines various 
28   * property keys that it will use, for example, to display About information.  See
29   * <code>org.eclipse.ui.branding.IBundleGroupConstants</code>.
30   * </p>
31   * @see IBundleGroupProvider
32   * @since 3.0
33   */
34  public interface IBundleGroup {
35  
36      /**
37       * Returns the identifier of this bundle group.  Bundle groups are uniquely identified by the combination of
38       * their identifier and their version.
39       * 
40       * @see #getVersion()
41       * @return the identifier for this bundle group
42       */
43      public String   getIdentifier();
44  
45      /**
46       * Returns the human-readable name of this bundle group.
47       * 
48       * @return the human-readable name
49       */
50      public String   getName();
51  
52      /**
53       * Returns the version of this bundle group. Bundle group version strings have the same format as 
54       * bundle versions (i.e., major.minor.service.qualifier).  Bundle groups are uniquely identified 
55       * by the combination of their identifier and their version.
56       * 
57       * @see #getIdentifier()
58       * @return the string form of this bundle group's version
59       */
60      public String   getVersion();
61  
62      /**
63       * Returns a text description of this bundle group.
64       * 
65       * @return text description of this bundle group
66       */
67      public String   getDescription();
68  
69      /**
70       * Returns the name of the provider of this bundle group.
71       * 
72       * @return the name of the provider or <code>null</code> if none
73       */
74      public String   getProviderName();
75  
76      /**
77       * Returns a list of all bundles supplied by this bundle group.  
78       * 
79       * @return the bundles supplied by this bundle group
80       */
81      public Bundle[] getBundles();
82  
83      /**
84       * Returns the property of this bundle group with the given key.
85       * <code>null</code> is returned if there is no such key/value pair.
86       * 
87       * @param key the name of the property to return
88       * @return the value associated with the given key or <code>null</code> if none
89       */
90      public String   getProperty(String   key);
91  }
92
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