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.aop.support.annotation;
18:
19: import java.lang.annotation.Annotation;
20:
21: import org.springframework.aop.ClassFilter;
22: import org.springframework.util.Assert;
23:
24: /**
25: * Simple ClassFilter that looks for a specific Java 5 annotation
26: * being present on a class.
27: *
28: * @author Juergen Hoeller
29: * @since 2.0
30: * @see AnnotationMatchingPointcut
31: */
32: public class AnnotationClassFilter implements ClassFilter {
33:
34: private final Class<? extends Annotation> annotationType;
35:
36: /**
37: * Create a new AnnotationClassFilter for the given annotation type.
38: * @param annotationType the annotation type to look for
39: */
40: public AnnotationClassFilter(
41: Class<? extends Annotation> annotationType) {
42: Assert.notNull(annotationType,
43: "Annotation type must not be null");
44: this .annotationType = annotationType;
45: }
46:
47: public boolean matches(Class clazz) {
48: return clazz.isAnnotationPresent(this.annotationType);
49: }
50:
51: }
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