Oracle C++ Call Interface Programmer's Guide

Map Class
Map Class
The Map class is used to store the mapping of the SQL structured type to C++
classes.
For each user defined type, the Object Type Translator (OTT) generates a C++ class
declaration and implements the static methods readSQL() and writeSQL(). The
readSQL() method is called when the object from the server appears in the
application as a C++ class instance. The writeSQL() method is called to marshal
the object in the application cache to server data when it is being written / flushed
to the server. The readSQL() and writeSQL() methods generated by OTT are
based upon the OCCI standard C++ mappings.
If you want to override the standard OTT generated mappings with customized
mappings, you must implement a custom C++ class along with the readSQL() and
writeSQL() methods for each SQL structured type you need to customize. In
addition, you must add an entry for each such class into the Map member of the
Environment.
To..., use the syntax:
Map();
Summary of Map Methods
put()
Table 8–12 Map Methods
Method Summary
put() on page 8-92 Adds a map entry for the type to be customized.
This method adds a map entry for the type to be customized.
This method adds a map entry for the type, type_name, that you want to customize.
You must implement the type_name C++ class along with its static methods,
readSQL() and writeSQL().
You must then add this information into a map object, which should be registered
with the connection if the user wants the standard mappings to overridden.This
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