01: /*
02: * Copyright 2002-2007 the original author or authors.
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * 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 org.springframework.ui.context;
18:
19: /**
20: * Interface to be implemented by objects that can resolve {@link Theme Themes}.
21: * This enables parameterization and internationalization of messages
22: * for a given 'theme'.
23: *
24: * @author Jean-Pierre Pawlak
25: * @author Juergen Hoeller
26: * @see Theme
27: */
28: public interface ThemeSource {
29:
30: /**
31: * Return the Theme instance for the given theme name.
32: * <p>The returned Theme will resolve theme-specific messages, codes,
33: * file paths, etc (e.g. CSS and image files in a web environment).
34: * @param themeName the name of the theme
35: * @return the corresponding Theme, or <code>null</code> if none defined.
36: * Note that, by convention, a ThemeSource should at least be able to
37: * return a default Theme for the default theme name "theme" but may also
38: * return default Themes for other theme names.
39: * @see org.springframework.web.servlet.theme.AbstractThemeResolver#ORIGINAL_DEFAULT_THEME_NAME
40: */
41: Theme getTheme(String themeName);
42:
43: }
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