blob: 61f97c47fa51cbedd5a765ef736afe1bb657ce78 (
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
|
/*******************************************************************************
* Copyright (c) 2008, 2009 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.internal.p2.metadata.query;
import org.eclipse.equinox.p2.metadata.*;
import org.eclipse.equinox.p2.query.MatchQuery;
/**
* A query that finds all IUs that are considered an "Update" of the
* specified IU.
*/
public final class UpdateQuery extends MatchQuery<IInstallableUnit> {
private IInstallableUnit updateFrom;
public UpdateQuery(IInstallableUnit updateFrom) {
this.updateFrom = updateFrom;
}
public boolean isMatch(IInstallableUnit candidate) {
if (candidate instanceof IInstallableUnitPatch && !(updateFrom instanceof IInstallableUnitPatch)) {
IInstallableUnitPatch potentialPatch = (IInstallableUnitPatch) candidate;
IRequirement lifeCycle = potentialPatch.getLifeCycle();
if (lifeCycle == null)
return false;
return updateFrom.satisfies(lifeCycle);
}
IUpdateDescriptor descriptor = candidate.getUpdateDescriptor();
if (descriptor != null && descriptor.isUpdateOf(updateFrom)) {
if (!updateFrom.getId().equals(candidate.getId()))
return true;
return updateFrom.getVersion().compareTo(candidate.getVersion()) < 0;
}
return false;
}
}
|
