blob: 63a0005a859f67d9cb41a42425566b38665595f0 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/*******************************************************************************
* Copyright (c) 2008, 2012 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.equinox.p2.metadata;
import java.net.URI;
import java.util.Collection;
import org.eclipse.equinox.p2.metadata.expression.IMatchExpression;
/**
* An update descriptor is attached to an installable unit to describe what that
* installable unit is capable of acting as an update for. Typically an installable unit
* will specify that it is capable of updating all installable units of the same name
* and with an older version. However, this descriptor allows an installable
* unit to be considered an update for an installable unit with a different name, or
* even an update for a unit with a higher version than itself.
*
* @noimplement This interface is not intended to be implemented by clients.
* @noextend This interface is not intended to be extended by clients.
* @since 2.0
* @see MetadataFactory#createUpdateDescriptor(String, VersionRange, int, String)
*/
public interface IUpdateDescriptor {
/**
* Update severity constant (value 0) indicating a normal severity update.
*/
public final int NORMAL = 0;
/**
* Update severity constant (value 1) indicating a high severity update.
*/
public final int HIGH = 1;
/**
* Returns an expression matching all installable units that will be updated by
* the unit with this update descriptor.
* @return An expression matching all matching installable units
*/
Collection<IMatchExpression<IInstallableUnit>> getIUsBeingUpdated();
/**
* The description of the update. This allows to explain what the update is about.
* @return A description
*/
public String getDescription();
/**
* Returns the location of a document containing the description.
*
* @return the location of the document, or <code>null</code>
*/
public URI getLocation();
/**
* The importance of the update descriptor represented as a int.
* @return The severity (either {@link #HIGH} or {@link #NORMAL}).
*/
public int getSeverity();
/**
* Helper method indicating whether or not an installable unit is an update for the installable unit passed
* @param iu the installable unit checked
* @return A boolean indicating whether or not an installable unit is an update.
*/
public boolean isUpdateOf(IInstallableUnit iu);
}
|
