org.springframework.transaction.config.AnnotationDrivenBeanDefinitionParser Maven / Gradle / Ivy
/*
* Copyright 2002-2007 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.transaction.config;
import org.w3c.dom.Element;
import org.springframework.aop.config.AopNamespaceUtils;
import org.springframework.beans.factory.config.RuntimeBeanReference;
import org.springframework.beans.factory.support.AbstractBeanDefinition;
import org.springframework.beans.factory.support.RootBeanDefinition;
import org.springframework.beans.factory.xml.AbstractBeanDefinitionParser;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.transaction.interceptor.TransactionAttributeSourceAdvisor;
import org.springframework.transaction.interceptor.TransactionInterceptor;
/**
* {@link org.springframework.beans.factory.xml.BeanDefinitionParser} implementation that
* allows users to easily configure all the infrastructure beans required to enable
* annotation-driven transaction demarcation.
*
* By default, all proxies are created as JDK proxies. This may cause some problems if
* you are injecting objects as concrete classes rather than interfaces. To overcome this
* restriction you can set the 'proxy-target-class' attribute to 'true'.
*
* @author Rob Harrop
* @author Juergen Hoeller
* @since 2.0
*/
class AnnotationDrivenBeanDefinitionParser extends AbstractBeanDefinitionParser {
/**
* Bean property name for injecting the {@link TransactionInterceptor}.
*/
private static final String TRANSACTION_INTERCEPTOR = "transactionInterceptor";
/** The 'proxy-target-class' attribute */
private static final String PROXY_TARGET_CLASS = "proxy-target-class";
/** The 'order' property/attribute */
private static final String ORDER = "order";
/**
* Parses the '<tx:annotation-driven/>>' tag. Will
* {@link AopNamespaceUtils#registerAutoProxyCreatorIfNecessary register an AutoProxyCreator} in
* the container as necessary.
*/
protected AbstractBeanDefinition parseInternal(Element element, ParserContext parserContext) {
AopNamespaceUtils.registerAutoProxyCreatorIfNecessary(parserContext, element);
boolean proxyTargetClass = Boolean.valueOf(element.getAttribute(PROXY_TARGET_CLASS)).booleanValue();
if (proxyTargetClass) {
AopNamespaceUtils.forceAutoProxyCreatorToUseClassProxying(parserContext.getRegistry());
}
String transactionManagerName = element.getAttribute(TxNamespaceUtils.TRANSACTION_MANAGER_ATTRIBUTE);
Class sourceClass = TxNamespaceUtils.getAnnotationTransactionAttributeSourceClass();
// Create the TransactionInterceptor definition.
RootBeanDefinition interceptorDefinition = new RootBeanDefinition(TransactionInterceptor.class);
interceptorDefinition.setSource(parserContext.extractSource(element));
interceptorDefinition.getPropertyValues().addPropertyValue(
TxNamespaceUtils.TRANSACTION_MANAGER_PROPERTY, new RuntimeBeanReference(transactionManagerName));
interceptorDefinition.getPropertyValues().addPropertyValue(
TxNamespaceUtils.TRANSACTION_ATTRIBUTE_SOURCE, new RootBeanDefinition(sourceClass));
// Create the TransactionAttributeSourceAdvisor definition.
RootBeanDefinition advisorDefinition = new RootBeanDefinition(TransactionAttributeSourceAdvisor.class);
advisorDefinition.setSource(parserContext.extractSource(element));
advisorDefinition.getPropertyValues().addPropertyValue(TRANSACTION_INTERCEPTOR, interceptorDefinition);
if (element.hasAttribute(ORDER)) {
advisorDefinition.getPropertyValues().addPropertyValue(
ORDER, element.getAttribute(ORDER));
}
return advisorDefinition;
}
protected boolean shouldGenerateId() {
return true;
}
}