扩展点本身的加载容器,可从不同容器加载扩展点。
com.alibaba.dubbo.common.extension.ExtensionFactory
<dubbo:application compiler="jdk" />
com.alibaba.dubbo.common.extension.factory.SpiExtensionFactory
com.alibaba.dubbo.config.spring.extension.SpringExtensionFactory
Maven项目结构
src |-main |-java |-com |-xxx |-XxxExtensionFactory.java (实现ExtensionFactory接口) |-resources |-META-INF |-dubbo |-com.alibaba.dubbo.common.extension.ExtensionFactory (纯文本文件,内容为:xxx=com.xxx.XxxExtensionFactory)
XxxExtensionFactory.java
package com.xxx; import com.alibaba.dubbo.common.extension.ExtensionFactory; public class XxxExtensionFactory implements ExtensionFactory { public Object getExtension(Class<?> type, String name) { // ... } }
META-INF/dubbo/com.alibaba.dubbo.common.extension.ExtensionFactory
xxx=com.xxx.XxxExtensionFactory