Data Masker downloads schema information and saves it into masking set statically. When the schema is changed, a manual refresh under Rule Controllers is needed, in order to configure rules against the new schema. However when the schema is modified dynamically by a Command rule or other rules, in order for subsequent rules to be aware of the modified schema, a dynamic refresh is necessary. This is what a group of refresh rules is designed for.

Specifically, Foreign Key Refresh rules will download the foreign key data dynamically under the Rule Controller, so that subsequent rules will have access to these information. It also refreshes all the Foreign Key Disable/Enable rules under the same controller, in the same way that Refresh Foreign Keys Form under Rule Controller does. After the Foreign Key Refresh Rule is executed, all Foregin Key Disable/Enable Rules under the same controller will have the up-to-date view of the foreign key information in the schema.