01: /*
02:
03: Derby - Class org.apache.derby.iapi.services.i18n.LocaleFinder
04:
05: Licensed to the Apache Software Foundation (ASF) under one or more
06: contributor license agreements. See the NOTICE file distributed with
07: this work for additional information regarding copyright ownership.
08: The ASF licenses this file to you under the Apache License, Version 2.0
09: (the "License"); you may not use this file except in compliance with
10: the License. You may obtain a copy of the License at
11:
12: http://www.apache.org/licenses/LICENSE-2.0
13:
14: Unless required by applicable law or agreed to in writing, software
15: distributed under the License is distributed on an "AS IS" BASIS,
16: WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17: See the License for the specific language governing permissions and
18: limitations under the License.
19:
20: */
21:
22: package org.apache.derby.iapi.services.i18n;
23:
24: import org.apache.derby.iapi.error.StandardException;
25:
26: import java.util.Locale;
27: import java.text.DateFormat;
28: import java.text.RuleBasedCollator;
29:
30: /**
31: A LocaleFinder gets a Locale and things associated with Locales.
32: */
33: public interface LocaleFinder {
34:
35: /**
36: * @exception StandardException Thrown on error
37: */
38: Locale getCurrentLocale() throws StandardException;
39:
40: /**
41: * Get a RuleBasedCollator corresponding to the Locale returned by
42: * getCurrentLocale().
43: *
44: * @exception StandardException Thrown on error
45: */
46: RuleBasedCollator getCollator() throws StandardException;
47:
48: /**
49: * Get a formatter for formatting dates. The implementation may cache this
50: * value, since it never changes for a given Locale.
51: *
52: * @exception StandardException Thrown on error
53: */
54: DateFormat getDateFormat() throws StandardException;
55:
56: /**
57: * Get a formatter for formatting times. The implementation may cache this
58: * value, since it never changes for a given Locale.
59: *
60: * @exception StandardException Thrown on error
61: */
62: DateFormat getTimeFormat() throws StandardException;
63:
64: /**
65: * Get a formatter for formatting timestamps. The implementation may cache
66: * this value, since it never changes for a given Locale.
67: *
68: * @exception StandardException Thrown on error
69: */
70: DateFormat getTimestampFormat() throws StandardException;
71: }
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