01: /* Licensed to the Apache Software Foundation (ASF) under one or more
02: * contributor license agreements. See the NOTICE file distributed with
03: * this work for additional information regarding copyright ownership.
04: * The ASF licenses this file to You under the Apache License, Version 2.0
05: * (the "License"); you may not use this file except in compliance with
06: * the License. You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
10: * Unless required by applicable law or agreed to in writing, software
11: * distributed under the License is distributed on an "AS IS" BASIS,
12: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13: * See the License for the specific language governing permissions and
14: * limitations under the License.
15: */
16:
17: package java.util.prefs;
18:
19: /**
20: * This interface is used by {@link Preferences} class
21: * as factory class to create Preferences instance. This interface can be implemented
22: * and installed to replace the default preferences implementation.
23: *
24: * @see java.util.prefs.Preferences
25: *
26: * @since 1.4
27: */
28: public interface PreferencesFactory {
29: /**
30: * Returns the root of the preferences hierarchy for the calling user
31: * context.
32: *
33: * @return The user root preferences node.
34: */
35: Preferences userRoot();
36:
37: /**
38: * Returns the root of the system preferences hierarchy.
39: *
40: * @return The root of the system preferences hierarchy.
41: */
42: Preferences systemRoot();
43: }
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