01: /*
02: * Spoon - http://spoon.gforge.inria.fr/
03: * Copyright (C) 2006 INRIA Futurs <renaud.pawlak@inria.fr>
04: *
05: * This software is governed by the CeCILL-C License under French law and
06: * abiding by the rules of distribution of free software. You can use, modify
07: * and/or redistribute the software under the terms of the CeCILL-C license as
08: * circulated by CEA, CNRS and INRIA at http://www.cecill.info.
09: *
10: * This program is distributed in the hope that it will be useful, but WITHOUT
11: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12: * FITNESS FOR A PARTICULAR PURPOSE. See the CeCILL-C License for more details.
13: *
14: * The fact that you are presently reading this means that you have had
15: * knowledge of the CeCILL-C license and that you accept its terms.
16: */
17:
18: package spoon.reflect.visitor;
19:
20: import spoon.reflect.declaration.CtElement;
21:
22: /**
23: * This interface defines a filter for program elements.
24: *
25: * @param T
26: * the type of the filtered elements (an element belonging to the
27: * filtered element must be assignable from <code>T</code>).
28: */
29: public interface Filter<T extends CtElement> {
30: /**
31: * Tells if the given element matches.
32: */
33: boolean matches(T element);
34:
35: /**
36: * Gets the runtime type that corresponds to the <code>T</code> parameter
37: * (the type of the filtered elements). Any element assignable from this
38: * type is a potential match and is tested using the
39: * {@link #matches(CtElement)} method, while other elements are never a
40: * match.
41: */
42: Class<T> getType();
43: }
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