扩展点本身的加载容器,可从不同容器加载扩展点。
扩展接口
org.apache.dubbo.common.extension.ExtensionFactory
扩展配置
<dubbo:application compiler="jdk" />
已知扩展
org.apache.dubbo.common.extension.factory.SpiExtensionFactory
org.apache.dubbo.config.spring.extension.SpringExtensionFactory
扩展示例
- Maven 项目结构:
src |-main |-java |-com |-xxx |-XxxExtensionFactory.java (实现ExtensionFactory接口) |-resources |-META-INF |-dubbo |-org.apache.dubbo.common.extension.ExtensionFactory (纯文本文件,内容为:xxx=com.xxx.XxxExtensionFactory)
- XxxExtensionFactory.java:
package com.xxx; import org.apache.dubbo.common.extension.ExtensionFactory; public class XxxExtensionFactory implements ExtensionFactory { public Object getExtension(Class<?> type, String name) { // ... } }
- META-INF/dubbo/org.apache.dubbo.common.extension.ExtensionFactory:
xxx=com.xxx.XxxExtensionFactory
下一节:将 Invoker 接口转换成业务接口。