程序包 com.alibaba.dubbo.common.extension

接口概要

接口	说明
ExtensionFactory	ExtensionFactory

类概要

类	说明
ExtensionLoader<T>	Load dubbo extensions auto inject dependency extension auto wrap extension in wrapper default extension is an adaptive instance

注释类型概要

注释类型	说明
Activate	Activate.
Adaptive	Provide helpful information for ExtensionLoader to inject dependency extension instance.
SPI	Marker for extension interface Changes on extension configuration file Use Protocol as an example, its configuration file 'META-INF/dubbo/com.xxx.Protocol' is changes from: com.foo.XxxProtocol com.foo.YyyProtocol to key-value pair xxx=com.foo.XxxProtocol yyy=com.foo.YyyProtocol The reason for this change is: If there's third party library referenced by static field or by method in extension implementation, its class will fail to initialize if the third party library doesn't exist.