01: /*
02: * Copyright 2004-2007 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: package org.springframework.binding.collection;
17:
18: import java.util.Map;
19:
20: /**
21: * An object whose contents are capable of being exposed as an unmodifiable map.
22: *
23: * @author Keith Donald
24: */
25: public interface MapAdaptable {
26:
27: /**
28: * Returns this object's contents as a {@link Map}. The returned map may or
29: * may not be modifiable depending on this implementation.
30: * <p>
31: * Warning: this operation may be called frequently; if so care should be
32: * taken so that the map contents (if calculated) be cached as appropriate.
33: * @return the object's contents as a map
34: */
35: public Map asMap();
36:
37: }
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