_dehydrateContext() {
   if (isPresent(this.locals)) {
     this.locals.clearValues();
   }
   this.context = null;
   this.changeDetector.dehydrate();
 }

 hydrate(appInjector, hostElementInjector, hostLightDom, context, locals) {
   if (this.hydrated())
     throw new BaseException('The view is already hydrated.');
   this._hydrateContext(context, locals);
   for (var i = 0; i < this.viewContainers.length; i++) {
     var vc = this.viewContainers[i];
     if (isPresent(vc)) {
       vc.hydrate(appInjector, hostElementInjector, hostLightDom);
     }
   }
   var binders = this.proto.elementBinders;
   var componentChildViewIndex = 0;
   for (var i = 0; i < binders.length; ++i) {
     var componentDirective = binders[i].componentDirective;
     var shadowDomAppInjector = null;
     if (isPresent(componentDirective)) {
       var services = componentDirective.annotation.services;
       if (isPresent(services))
         shadowDomAppInjector = appInjector.createChild(services);
       else {
         shadowDomAppInjector = appInjector;
       }
     } else {
       shadowDomAppInjector = null;
     }
     var elementInjector = this.elementInjectors[i];
     if (isPresent(elementInjector)) {
       elementInjector.instantiateDirectives(appInjector, shadowDomAppInjector, this.preBuiltObjects[i]);
       var exportImplicitName = elementInjector.getExportImplicitName();
       if (elementInjector.isExportingComponent()) {
         this.locals.set(exportImplicitName, elementInjector.getComponent());
       } else if (elementInjector.isExportingElement()) {
         this.locals.set(exportImplicitName, elementInjector.getNgElement().domElement);
       }
     }
     if (isPresent(binders[i].nestedProtoView) && isPresent(componentDirective)) {
       this.componentChildViews[componentChildViewIndex++].hydrate(shadowDomAppInjector, elementInjector, this.lightDoms[i], elementInjector.getComponent(), null);
     }
   }
   for (var i = 0; i < this.lightDoms.length; ++i) {
     var lightDom = this.lightDoms[i];
     if (isPresent(lightDom)) {
       lightDom.redistribute();
     }
   }
 }

 setLocal(contextName: string, value): void {
   if (!this.hydrated()) throw new BaseException('Cannot set locals on dehydrated view.');
   if (!MapWrapper.contains(this.proto.variableBindings, contextName)) {
     return;
   }
   var templateName = MapWrapper.get(this.proto.variableBindings, contextName);
   this.locals.set(templateName, value);
 }