blob: 1da52f0e2034c7f766eef31298f45a41264427eb (
plain)
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
|
/*
* Copyright 2002-2009 the original author or authors.
*
* 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 org.springframework.beans.factory.config;
import org.springframework.util.Assert;
/**
* Context object for evaluating an expression within a bean definition.
*
* @author Juergen Hoeller
* @since 3.0
*/
public class BeanExpressionContext {
private final ConfigurableBeanFactory beanFactory;
private final Scope scope;
public BeanExpressionContext(ConfigurableBeanFactory beanFactory, Scope scope) {
Assert.notNull(beanFactory, "BeanFactory must not be null");
this.beanFactory = beanFactory;
this.scope = scope;
}
public final ConfigurableBeanFactory getBeanFactory() {
return this.beanFactory;
}
public final Scope getScope() {
return this.scope;
}
public boolean containsObject(String key) {
return (this.beanFactory.containsBean(key) ||
(this.scope != null && this.scope.resolveContextualObject(key) != null));
}
public Object getObject(String key) {
if (this.beanFactory.containsBean(key)) {
return this.beanFactory.getBean(key);
}
else if (this.scope != null){
return this.scope.resolveContextualObject(key);
}
else {
return null;
}
}
@Override
public boolean equals(Object other) {
if (this == other) {
return true;
}
if (!(other instanceof BeanExpressionContext)) {
return false;
}
BeanExpressionContext otherContext = (BeanExpressionContext) other;
return (this.beanFactory == otherContext.beanFactory && this.scope == otherContext.scope);
}
@Override
public int hashCode() {
return this.beanFactory.hashCode();
}
}
|
