# Decorate a public function from SwagImportExport\\DbAdapters\\Articles\\PropertyWriter **URL:** \ **Category:** International (English Only)\ **Tags:** programming\ **Created:** [13. Februar 2017 um 13:20 UTC](https://forum.shopware.com/t/decorate-a-public-function-from-swagimportexport-dbadapters-articles-propertywriter/43660 "2017-02-13T13:20:01Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![FrankStappers](https://avatars.discourse-cdn.com/v4/letter/f/e19adc/32.png) [@FrankStappers](https://forum.shopware.com/u/FrankStappers)\ **Post date:** [13. Februar 2017 um 13:20 UTC](https://forum.shopware.com/t/decorate-a-public-function-from-swagimportexport-dbadapters-articles-propertywriter/43660/1 "2017-02-13T13:20:01Z")
Decorate a public function from SwagImportExport\DbAdapters\Articles\PropertyWriter  Hi, I have installed the “Shopware Import/Export v2.0.2” module and would like to alter the behaviour of SwagImportExport\DbAdapters\Articles\PropertyWriter::writeUpdateCreatePropertyGroupsFilterAndValues(…)  by using a custom plugin as described via [Extend an existing plugin via another plugin](https://developers.shopware.com/developers-guide/plugin-extension-by-plugin/). To decorate a plugin’s functionality the development documentation suggests to use a service configuration layer. The SwagImportExport uses the ‘Bootstrap.php’ file to install the plugin, hence no ‘services.xml’ file is available. The documentation on how to decorate these functions keeps me puzzled: Do I need to extend the generated Proxy class ShopwareComponentsSwagImportExportDbAdaptersArticlesDbAdapterProxy from the cache folder and ‘hook’  into the proxy? Should I use subscribers/events to decorate functionality? Are there other ways for decorating the functionality? What would be best way to proceed? Any help would be appreciated. Kind regards, Frank Stappers