You configure precedence rules in the Oracle Endeca Server by loading them in Integrator. Alternatively, you can create a rule in the data store using the config-service:putPrecedenceRules operation of the Configuration Web Service.
The precedence rule is stored by the Dgraph process as a record in its data files, so that the precedence rules are automatically reloaded each time the Dgraph process is re-started.
To configure precedence rules:
The Oracle Endeca Information Discovery Integrator Components Guide provides details on creating the precedence rules and loading them into the Oracle Endeca Server.