The following subjects are discussed in this section:

• Object references, ReferenceData, and the ReferenceData table
  
• Simple SOM object references
  
• SOMDServer (default server-object class)
  
• Creation and destruction of SOM objects
  
• Mapping objects to object references
  
• Hints on the use of create vs. create_constant
  
• Mapping object references to objects
  
• Dispatching a method