| Class | Description | 
|---|---|
| ComparisonList | ComparisonList maintains a list of items that the user might want to
 compare with each other, together with an associated set of sort
 directives to apply when displaying the items in the list. | 
| ProductComparisonList | ProductComparisonList extends ComparisonList and manages list elements
  Entrythat are specifically designed for comparing catalog-based
 category/product/sku tuples rather than simple Java objects. | 
| ProductComparisonList.Entry | Entry is specifically designed for comparing catalog-based
 category/product/sku tuples rather than simple Java objects. | 
| ProductComparisonList.Entry.InventoryData | Inner class to capture and hold inventory data; returns the same readable
 properties as atg.commerce.inventory.InventoryInfo, but is serializable so
 it can participate in session failover. | 
| ProductListContains | A droplet that queries whether a ProductComparisonList contains
 a specified product, category, and sku. | 
| ProductListHandler | A form handler that manages the contents of a ProductComparisonList. |