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User Guide
The information contained in this section applies to IBM WebSphere Commerce Version 7.0.0.9 and Feautre Pack 8. The documentation also applies to all subsequent releases and modifications until otherwise indicated in new editions.
Developing
The topics in the Developing section describe tasks performed by an application developer.
Presentation layer
WebSphere Commerce uses Java Server Pages (JSP) to implement the view layer of the Model-View-Controller (MVC) design pattern. The view layer is in charge of retrieving data from the database through the use of data beans and formatting it to meet the display requirements. The view layers determines whether the request is sent to a browser or streamed out as XML. JSP files present a clean separation between data content and presentation.
Management Center framework
The Management Center framework is the foundation for business user tooling. The business objects are defined by the individual components that make up the Management Center. The framework uses those definitions to provide all of the features that you can use to find, create, modify, and delete the defined business objects. If you plan to customize the Management Center, it is important to understand the framework and the components that make up the Management Center.
Customizing catalog filters
You can customize catalog filters to suit the business needs of your site. For example, you can create a new condition or action for business users to add to price rules. Customization is supported for user interface in the Catalog Filter and Pricing tool, and for the catalog filter services.
Integrating search with the Catalog Filter and Pricing tool
A catalog filter is a set of user defined conditions that calculate the categories and catalog entries that a customer is entitled to. The catalog filter provides an entitlement search expression as part of the search criteria, this entitlement check uses the WebSphere Commerce search framework. Without customization, the search framework uses Solr. If required, you can use another search engine.

WebSphere Commerce Enterprise

Introduced in Feature Pack 2

Catalog filter customization: Integrating search with the Catalog Filter and Pricing tool

A catalog filter is a set of user defined conditions that calculate the categories and catalog entries that a customer is entitled to. The catalog filter provides an entitlement search expression as part of the search criteria, this entitlement check uses the WebSphere Commerce search framework. Without customization, the search framework uses Solr. If required, you can use another search engine.

Procedure

Create a class, for example com.mycompany.catalogfilter.ResolveCatalogFiltermySearchExpressionCmdImpl which implements the interface com.ibm.commerce.contract.catalogfilter.command.ResolveCatalogFilterSearchExpressionCmd and extends from com.ibm.commerce.command.TaskCommandImpl
Implement the logic for building your entitlement expression within performExecute method. Use the static method CatalogFilterHelper.getCatalogFilterById to get the CatalogFilter instance containing all properties of a Management Center defined catalog filter.

Register the class implementation in command registry by running the following SQL statement:

insert into CMDREG ("STOREENT_ID", "INTERFACENAME", "DESCRIPTION", "CLASSNAME", "PROPERTIES", "LASTUPDATE", "TARGET", "OPTCOUNTER")
 values(0, 'com.ibm.commerce.contract.catalogfilter.command.ResolveCatalogFilterSearchExpressionCmd', 
NULL, 'com.mycompany.catalogfilter. ResolveCatalogFilterOminFindExpressionCmdImpl', NULL, NULL, 'Local', NULL);