01: // Copyright 2006 The Apache Software Foundation
02: //
03: // Licensed under the Apache License, Version 2.0 (the "License");
04: // you may not use this file except in compliance with the License.
05: // You may obtain a copy of the License at
06: //
07: // http://www.apache.org/licenses/LICENSE-2.0
08: //
09: // Unless required by applicable law or agreed to in writing, software
10: // distributed under the License is distributed on an "AS IS" BASIS,
11: // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12: // See the License for the specific language governing permissions and
13: // limitations under the License.
14:
15: package org.apache.tapestry.services;
16:
17: import java.util.Locale;
18:
19: import org.apache.tapestry.internal.event.InvalidationEventHub;
20: import org.apache.tapestry.ioc.Messages;
21: import org.apache.tapestry.model.ComponentModel;
22:
23: /** Used to connect a Tapestry component to its message catalog. */
24: public interface ComponentMessagesSource extends InvalidationEventHub {
25: /**
26: * Used to obtain a {@link Messages} instance for a particular component, within a particular
27: * locale. If the component extends from another component, then its localized properties will
28: * merge with its parent's properties (with the subclass overriding the super class on any
29: * conflicts).
30: *
31: * @param componentModel
32: * @param locale
33: * @return the message catalog for the component, in the indicated locale
34: */
35: Messages getMessages(ComponentModel componentModel, Locale locale);
36: }
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