In the Java Open Client, the default mechanism for passing either a single temp-table or a ProDataSet parameter (static or dynamic) is the OpenEdge ProDataGraph. The ProDataGraph class is an implementation of the DataGraph interface defined by Java Service Data Objects (Java SDO), a standard for managing complex data jointly developed by IBM and BEA. A legacy mechanism for passing temp-tables (but not ProDataSets) is the SQL ResultSet interface, supported by the Java Database Connectivity (JDBC) standard.