Method: compare(Displayable, Displayable)

1: /*
2: * *********************************************************************************************************************
3: *
4: * TheseFoolishThings: Miscellaneous utilities
5: * http://tidalwave.it/projects/thesefoolishthings
6: *
7: * Copyright (C) 2009 - 2023 by Tidalwave s.a.s. (http://tidalwave.it)
8: *
9: * *********************************************************************************************************************
10: *
11: * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
12: * the License. You may obtain a copy of the License at
13: *
14: * http://www.apache.org/licenses/LICENSE-2.0
15: *
16: * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
17: * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
18: * specific language governing permissions and limitations under the License.
19: *
20: * *********************************************************************************************************************
21: *
22: * git clone https://bitbucket.org/tidalwave/thesefoolishthings-src
23: * git clone https://github.com/tidalwave-it/thesefoolishthings-src
24: *
25: * *********************************************************************************************************************
26: */
27: package it.tidalwave.role.ui.impl;
28:
29: import javax.annotation.Nonnull;
30: import java.text.Collator;
31: import java.util.Comparator;
32: import it.tidalwave.role.ui.Displayable;
33:
34: /***********************************************************************************************************************
35: *
36: * A {@link Comparator} for classes implementing the {@link Displayable} role.
37: * FIXME: don't use it, it requires the objects to statically implement Displayable
38: *
39: * @author Fabrizio Giudici
40: * @it.tidalwave.javadoc.draft Will be removed (FIXME)
41: *
42: **********************************************************************************************************************/
43: public final class DisplayableComparator implements Comparator<Displayable>
44: {
45: private static final DisplayableComparator INSTANCE = new DisplayableComparator();
46:
47: private final Collator collator = Collator.getInstance();
48:
49: @Nonnull
50: public static DisplayableComparator getInstance()
51: {
52: return INSTANCE;
53: }
54:
55: @Override
56: public int compare (@Nonnull final Displayable d1, @Nonnull final Displayable d2)
57: {
58: return collator.compare(d1.getDisplayName(), d2.getDisplayName());
59: }
60: }