In assembler-context.xml, you can also configure:

To configure the number of records returned with the aggregated record, specify ALL, ONE, or ZERO as the value of the subRecordsPerAggregatedRecord in the resultsListDefaultConfig bean:

<bean id="resultsListDefaultConfig" scope="prototype" class="com.endeca.infront.cartridge.ResultsListConfig"> 
  ... 
  <property name="subRecordsPerAggregateRecord" value="ONE"/> 
  ...
</bean>

For most purposes, you should set subRecordsPerAggregatedRecord to ZERO or ONE. Setting it to ALL will cause all member records to be returned with the aggregated records; if there are a large number of member records, the system's performance may be slowed significantly as a result.