doWithDynamicMethods访问服务

Question

我无法在doWithDynamicMethod中访问特定服务。

def doWithDynamicMethods = { ctx ->
        def nodeDriverProxy  = application.getServiceClass('NodeDriverProxyService')
        application.domainClasses.each{ cClass ->
            delegate.log.warn('cClass: ' + cClass.toString())
            cClass.metaClass.cacheInstance = { domainIns->
                delegate.log.warn "domain is being cached id: ? with version ?"
                nodeDriverProxy.registerUpdate(domainIns.id, domainIns.version)
            }

变量nodeDriveProxy为null或者我在访问'application.serviceClasses'时遇到异常我做错了什么？谢谢

Answer 1

您不希望GrailsServiceClass，您想要服务实例。您有ctx变量，即Spring ApplicationContext，因此它将是

def doWithDynamicMethods = { ctx ->
   def service = ctx.nodeDriverProxyService
   application.domainClasses.each { cClass ->
      delegate.log.warn('cClass: ' + cClass.toString())
      cClass.metaClass.cacheInstance = { domainIns ->
         delegate.log.warn "domain is being cached id: ? with version ?"
         service.registerUpdate(domainIns.id, domainIns.version)
      }
   }
}