Shareable type components can be registered or unregistered. Registering components identifies how the component will be shared across all sites:

For example, to share a shopping cart across all sites, do not register the component.

Unregistered Component with Sites

To share a shopping cart across the sites within a site group, you must register the component and then add it to a site group. Once the registered component is added to the site group, it is available only to sites within site groups. If a site is not a member of a site group, the registered component will be unavailable.

Registered Component within a Site Group

If you register a component, for example a shopping cart, but do not add it to a site group, the component will not be available to any sites until it is added to a site group.

Registered Component without Site Group

Shareable type components should be registered with the system only when it is necessary to manage or limit the scope of the shareable type component. For example, if all sites share a shopper’s login status, there is no need to define login status as a shareable type component. However, if the login is shared between only a few sites, then it you would register the login status as a shareable type component to apply the limitation.

If a shareable type component is currently registered but needs to be shared across all sites, the shareable type component must be unregistered by the site developer. This excludes the shareable type component from data sharing validation and ensures that it will not be limited within Site Administration.

Registering a Shareable Type

Components are registered with the /atg/multisite/SiteGroupManager using the shareableTypes property.

For example:

shareableTypes+=/atg/multisite/NewShareableType

Once you have registered your ShareableType, all sites have their own instance of the shareableType. However, if the ShareableType remains unregistered, the ShareableType is shared between all sites.

Once you have registered a ShareableType, you can configure site groups that will share the ShareableType you have created.