See the Javadocs in <EPM_ORACLE_HOME>/common/docs/ReportingAnalysis/SDK/javadoc.
This interface encapsulates JobDef artifact vectors and other attributes controlling the job execution within the cluster. In addition to the JobDef vector, the ParameterList interface maintains a hold feature that enables the user to suspend execution of all scheduled tasks associated with this ParameterList artifact until the hold mechanism is turned off. There are three ParameterList view types: public, personal, and unnamed. The default type is personal.