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Spring Framework example source code file (ObjectFactoryCreatingFactoryBean.java)
The Spring Framework ObjectFactoryCreatingFactoryBean.java source code/*
* 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.beans.factory.config;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.ObjectFactory;
import org.springframework.util.Assert;
/**
* A {@link org.springframework.beans.factory.FactoryBean} implementation that
* returns a value which is an {@link org.springframework.beans.factory.ObjectFactory}
* that in turn returns a bean sourced from a {@link org.springframework.beans.factory.BeanFactory}.
*
* <p>As such, this may be used to avoid having a client object directly calling
* {@link org.springframework.beans.factory.BeanFactory#getBean(String)} to get
* a (typically prototype) bean from a
* {@link org.springframework.beans.factory.BeanFactory}, which would be a
* violation of the inversion of control principle. Instead, with the use
* of this class, the client object can be fed an
* {@link org.springframework.beans.factory.ObjectFactory} instance as a
* property which directly returns only the one target bean (again, which is
* typically a prototype bean).
*
* <p>A sample config in an XML-based
* {@link org.springframework.beans.factory.BeanFactory} might look as follows:
*
* <pre class="code"><beans>
*
* <!-- Prototype bean since we have state -->
* <bean id="myService" class="a.b.c.MyService" singleton="false"/>
*
* <bean id="myServiceFactory"
* class="org.springframework.beans.factory.config.ObjectFactoryCreatingFactoryBean">
* <property name="targetBeanName"><idref local="myService"/></property>
* </bean>
*
* <bean id="clientBean" class="a.b.c.MyClientBean">
* <property name="myServiceFactory" ref="myServiceFactory"/>
* </bean>
*
*</beans></pre>
*
* <p>The attendant
Other Spring Framework examples (source code examples)Here is a short list of links related to this Spring Framework ObjectFactoryCreatingFactoryBean.java source code file: |
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