Get List Of Populators of a Converter

Converter

SAP Commerce (Hybris) uses converters to changing models to data object. Data object is kind of DTO. It stores value in the memory, unlike models. Model has a proxy connection with DB, it loads data to memory when it is required. In the facade layer, a model is converted to a data object. View/Controller layer uses the data objects.

Best approach is never using model objects in the controller layer. Always fetch data by facade layer and get a converted data object.

A converter may have different populators. Each populator has different purpose. You can add custom populators for your custom fields or override a populator easily. This architecture gives you a flexible solution for converting operations.

You can find detailed information in the official guide.

How to print all populators of a converter?

I will share a small groovy script to get list of populators of a converter.

Run following groovy script in HAC -> Console -> Scripting Languages. Don’t forget to changing orderConverter part of the script by your converter’s bean name.

import de.hybris.platform.converters.Populator

converter = spring.getBean("orderConverter");
for(Populator populator : converter.getPopulators()){
    println(populator.getClass())
}

Result of getting list of populators of a converter will be as following

class de.hybris.platform.commercefacades.voucher.converters.populator.OrderAppliedVouchersPopulator
class de.hybris.platform.commercefacades.order.converters.populator.PickupOrderEntryGroupPopulator
class de.hybris.platform.commercefacades.order.converters.populator.DeliveryOrderEntryGroupPopulator
class de.hybris.platform.acceleratorfacades.order.populators.AcceleratorGroupOrderEntryPopulator
class de.hybris.platform.commercefacades.order.converters.populator.OrderConsignmentPopulator
class de.hybris.platform.commercefacades.order.converters.populator.GroupOrderConsignmentEntryPopulator
class de.hybris.platform.ordermanagementfacades.order.converters.populator.OrderCancelPopulator
class de.hybris.platform.ordermanagementfacades.order.converters.populator.OrderReturnPopulator
class de.hybris.platform.configurablebundlefacades.order.converters.populator.BundleOrderPopulator

Hybris will run populators in the giving order. So, you can analyze which populators have an effect while model to data conversion.