blob: b53c274021aae87be988ffbdda05808cece7eda1 (
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
73
74
|
/*******************************************************************************
* Copyright (c) 2000, 2015 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
* Sergey Prigogin (Google) - use parameterized types (bug 442021)
*******************************************************************************/
package org.eclipse.core.runtime;
import org.eclipse.core.internal.runtime.AdapterManager;
/**
* An abstract superclass implementing the <code>IAdaptable</code>
* interface. <code>getAdapter</code> invocations are directed
* to the platform's adapter manager.
* <p>
* Note: In situations where it would be awkward to subclass this
* class, the same effect can be achieved simply by implementing
* the {@link IAdaptable} interface and explicitly forwarding
* the <code>getAdapter</code> request to an implementation
* of the {@link IAdapterManager} service. The method would look like:
* </p>
* <pre>
* public <T> T getAdapter(Class<T> adapter) {
* IAdapterManager manager = ...;//lookup the IAdapterManager service
* return manager.getAdapter(this, adapter);
* }
* </pre>
* <p>
* This class can be used without OSGi running.
* </p><p>
* Clients may subclass.
* </p>
*
* @see IAdapterManager
* @see IAdaptable
*/
public abstract class PlatformObject implements IAdaptable {
/**
* Constructs a new platform object.
*/
public PlatformObject() {
super();
}
/**
* Returns an object which is an instance of the given class
* associated with this object. Returns <code>null</code> if
* no such object can be found.
* <p>
* This implementation of the method declared by <code>IAdaptable</code>
* passes the request along to the platform's adapter manager; roughly
* <code>Platform.getAdapterManager().getAdapter(this, adapter)</code>.
* Subclasses may override this method (however, if they do so, they
* should invoke the method on their superclass to ensure that the
* Platform's adapter manager is consulted).
* </p>
*
* @param adapter the class to adapt to
* @return the adapted object or <code>null</code>
* @see IAdaptable#getAdapter(Class)
*/
@Override
public <T> T getAdapter(Class<T> adapter) {
return AdapterManager.getDefault().getAdapter(this, adapter);
}
}
|
