The HelperContext option OPTION_COPY_DISCARD_DEFAULT_ATTRIBUTE determines whether or not schema specified default attributes
are propagated during a document instance copy operation.
The HelperContext option OPTION_LOAD_SKIP_SUBTREE will materialize the root level of the document/data during the
"loading phase" - i.e., during the load() call.
The HelperContext option OPTION_SAVE_STANDARD_CHANGE_SUMMARY specifies whether or not the change summary information
is serialized using the standard XML format described in the SDO specification.
The HelperContext option OPTION_VALIDATE_ON_LOAD is a superset of OPTION_EAGER_ON_LOAD in that it will perform
a document schema validation in addition to the loading operation discussed in OPTION_EAGER_ON_LOAD.