1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
/**
* Copyright (C) 2008 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.inject.spi;
import static com.google.common.base.Preconditions.checkNotNull;
import com.google.common.collect.ImmutableList;
import com.google.inject.Binder;
import com.google.inject.matcher.Matcher;
import org.aopalliance.intercept.MethodInterceptor;
import java.lang.reflect.Method;
import java.util.List;
/**
* Registration of interceptors for matching methods of matching classes. Instances are created
* explicitly in a module using {@link com.google.inject.Binder#bindInterceptor(
* Matcher, Matcher, MethodInterceptor[]) bindInterceptor()} statements:
* <pre>
* bindInterceptor(Matchers.subclassesOf(MyAction.class),
* Matchers.annotatedWith(Transactional.class),
* new MyTransactionInterceptor());</pre>
*
* or from an injectable type listener using {@link TypeEncounter#bindInterceptor(Matcher,
* org.aopalliance.intercept.MethodInterceptor[]) TypeEncounter.bindInterceptor()}.
*
* @author jessewilson@google.com (Jesse Wilson)
* @since 2.0
*/
public final class InterceptorBinding implements Element {
private final Object source;
private final Matcher<? super Class<?>> classMatcher;
private final Matcher<? super Method> methodMatcher;
private final ImmutableList<MethodInterceptor> interceptors;
InterceptorBinding(
Object source,
Matcher<? super Class<?>> classMatcher,
Matcher<? super Method> methodMatcher,
MethodInterceptor[] interceptors) {
this.source = checkNotNull(source, "source");
this.classMatcher = checkNotNull(classMatcher, "classMatcher");
this.methodMatcher = checkNotNull(methodMatcher, "methodMatcher");
this.interceptors = ImmutableList.of(interceptors);
}
public Object getSource() {
return source;
}
public Matcher<? super Class<?>> getClassMatcher() {
return classMatcher;
}
public Matcher<? super Method> getMethodMatcher() {
return methodMatcher;
}
public List<MethodInterceptor> getInterceptors() {
return interceptors;
}
public <T> T acceptVisitor(ElementVisitor<T> visitor) {
return visitor.visit(this);
}
public void applyTo(Binder binder) {
binder.withSource(getSource()).bindInterceptor(classMatcher, methodMatcher,
interceptors.toArray(new MethodInterceptor[interceptors.size()]));
}
}
|
