扩展点加载扩展

扩展说明

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

com.alibaba.dubbo.common.extension.ExtensionFactory

扩展配置

  1. <dubbo:application compiler="jdk" />

已知扩展

  • com.alibaba.dubbo.common.extension.factory.SpiExtensionFactory
  • com.alibaba.dubbo.config.spring.extension.SpringExtensionFactory

    扩展示例

Maven 项目结构：

  1. src
  2.  |-main
  3.     |-java
  4.         |-com
  5.             |-xxx
  6.                 |-XxxExtensionFactory.java (实现ExtensionFactory接口)
  7.     |-resources
  8.         |-META-INF
  9.             |-dubbo
  10.                 |-com.alibaba.dubbo.common.extension.ExtensionFactory (纯文本文件，内容为：xxx=com.xxx.XxxExtensionFactory)

XxxExtensionFactory.java：

  1. package com.xxx;
  3. import com.alibaba.dubbo.common.extension.ExtensionFactory;
  5. public class XxxExtensionFactory implements ExtensionFactory {
  6.     public Object getExtension(Class<?> type, String name) {
  7.         // ...
  8.     }
  9. }

META-INF/dubbo/com.alibaba.dubbo.common.extension.ExtensionFactory：

  1. xxx=com.xxx.XxxExtensionFactory

原文: http://dubbo.apache.org/#!/docs/dev/impls/extension-factory.md?lang=zh-cn