The ATG Platform and Commerce Reference Store use Oracle Endeca’s existing ResultsList cartridge with some extensions to the cartridge’s handler class, described below.

The atg.endeca.assembler.cartridge.handler.ResultsListHandler class overrides the com.endeca.infront.cartridge.ResultsListHandler class and includes an additional sorters property of type atg.Nucleus.ServiceMap. The keys of this ServiceMap are labels for the sorting options and the values are the components that perform the actual sorting. Out of the box, the CommerceReferenceStore module sets the ResultsList component sorters property as follows:


The atg.endeca.assembler.cartridge.handler.ResultsListHandler.setSorters() method transforms the sorters ServiceMap into a List of com.endeca.infront.cartridge.model.SortOptionConfig components. It then passes that List when it calls the com.endeca.infront.cartridge.model.SortOptionConfig.setSortOptions() method to set the sort options. This technique of creating a ServiceMap and then using it to create a List of components is necessary because Nucleus cannot set Lists of components directly.

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