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

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.config;
18:
19:        import org.springframework.aop.aspectj.AspectJExpressionPointcut;
20:        import org.springframework.beans.factory.xml.BeanDefinitionParser;
21:        import org.springframework.beans.factory.xml.NamespaceHandlerSupport;
22:
23:        /**
24:         * <code>NamespaceHandler</code> for the <code>aop</code> namespace.
25:         *
26:         * <p>Provides a {@link org.springframework.beans.factory.xml.BeanDefinitionParser} for the
27:         * <code>&lt;aop:config&gt;</code> tag. A <code>config</code> tag can include nested
28:         * <code>pointcut</code>, <code>advisor</code> and <code>aspect</code> tags.
29:         *
30:         * <p>The <code>pointcut</code> tag allows for creation of named
31:         * {@link AspectJExpressionPointcut} beans using a simple syntax:
32:         * <pre class="code">
33:         * &lt;aop:pointcut id=&quot;getNameCalls&quot; expression=&quot;execution(* *..ITestBean.getName(..))&quot;/&gt;
34:         * </pre>
35:         *
36:         * <p>Using the <code>advisor</code> tag you can configure an {@link org.springframework.aop.Advisor}
37:         * and have it applied to all relevant beans in you {@link org.springframework.beans.factory.BeanFactory}
38:         * automatically. The <code>advisor</code> tag supports both in-line and referenced
39:         * {@link org.springframework.aop.Pointcut Pointcuts}:
40:         *
41:         * <pre class="code">
42:         * &lt;aop:advisor id=&quot;getAgeAdvisor&quot;
43:         *     pointcut=&quot;execution(* *..ITestBean.getAge(..))&quot;
44:         *     advice-ref=&quot;getAgeCounter&quot;/&gt;
45:         *
46:         * &lt;aop:advisor id=&quot;getNameAdvisor&quot;
47:         *     pointcut-ref=&quot;getNameCalls&quot;
48:         *     advice-ref=&quot;getNameCounter&quot;/&gt;</pre>
49:         *
50:         * @author Rob Harrop
51:         * @author Adrian Colyer
52:         * @author Juergen Hoeller
53:         * @since 2.0
54:         */
55:        public class AopNamespaceHandler extends NamespaceHandlerSupport {
56:
57:            /**
58:             * Register the {@link BeanDefinitionParser BeanDefinitionParsers} for the
59:             * '<code>config</code>', '<code>spring-configured</code>', '<code>aspectj-autoproxy</code>'
60:             * and '<code>scoped-proxy</code>' tags.
61:             */
62:            public void init() {
63:                // In 2.0 XSD as well as in 2.1 XSD.
64:                registerBeanDefinitionParser("config",
65:                        new ConfigBeanDefinitionParser());
66:                registerBeanDefinitionParser("aspectj-autoproxy",
67:                        new AspectJAutoProxyBeanDefinitionParser());
68:                registerBeanDefinitionDecorator("scoped-proxy",
69:                        new ScopedProxyBeanDefinitionDecorator());
70:
71:                // Only in 2.0 XSD: moved to context namespace as of 2.1
72:                registerBeanDefinitionParser("spring-configured",
73:                        new SpringConfiguredBeanDefinitionParser());
74:            }
75:
76:        }