Source Code Cross Referenced for AutoProxyUtils.java in  » J2EE » spring-framework-2.5 » org » springframework » aop » framework » autoproxy » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » J2EE » spring framework 2.5 » org.springframework.aop.framework.autoproxy 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


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.framework.autoproxy;
18:
19:        import org.springframework.beans.factory.config.BeanDefinition;
20:        import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
21:        import org.springframework.core.Conventions;
22:
23:        /**
24:         * Utilities for auto-proxy aware components.
25:         * Mainly for internal use within the framework.
26:         *
27:         * @author Juergen Hoeller
28:         * @since 2.0.3
29:         * @see AbstractAutoProxyCreator
30:         */
31:        public abstract class AutoProxyUtils {
32:
33:            /**
34:             * Bean definition attribute that may indicate whether a given bean is supposed
35:             * to be proxied with its target class (in case of it getting proxied in the first
36:             * place). The value is <code>Boolean.TRUE</code> or <code>Boolean.FALSE</code>.
37:             * <p>Proxy factories can set this attribute if they built a target class proxy
38:             * for a specific bean, and want to enforce that that bean can always be cast
39:             * to its target class (even if AOP advices get applied through auto-proxying).
40:             */
41:            public static final String PRESERVE_TARGET_CLASS_ATTRIBUTE = Conventions
42:                    .getQualifiedAttributeName(AutoProxyUtils.class,
43:                            "preserveTargetClass");
44:
45:            /**
46:             * Determine whether the given bean should be proxied with its target
47:             * class rather than its interfaces. Checks the
48:             * {@link #PRESERVE_TARGET_CLASS_ATTRIBUTE "preserveTargetClass" attribute}
49:             * of the corresponding bean definition.
50:             * @param beanFactory the containing ConfigurableListableBeanFactory
51:             * @param beanName the name of the bean
52:             * @return whether the given bean should be proxied with its target class
53:             */
54:            public static boolean shouldProxyTargetClass(
55:                    ConfigurableListableBeanFactory beanFactory, String beanName) {
56:                if (beanFactory.containsBeanDefinition(beanName)) {
57:                    BeanDefinition bd = beanFactory.getBeanDefinition(beanName);
58:                    return Boolean.TRUE.equals(bd
59:                            .getAttribute(PRESERVE_TARGET_CLASS_ATTRIBUTE));
60:                }
61:                return false;
62:            }
63:
64:        }
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