See the Javadocs in <EPM_ORACLE_HOME>/common/docs/ReportingAnalysis/SDK/javadoc.
This interface provides methods to get information regarding Interactive Reporting documents. It provides a mechanism to get Interactive Reporting database connection mappings for the Interactive Reporting document Query sections and enables you to set the Interactive Reporting database connections for the Query sections. It also supports methods to check and set the Interactive Reporting document iHTML rendering.