In the preceding installment of APIs by Example (“APIs by Example: The Save to Application API and Exit Program,” May 22, 2008), you learned how to save objects to a stream file by using the new Save Object to Stream File (SAVOBJSTMF) command that I presented in that article. If you have installed and tested the SAVOBJSTMF command, you are probably the happy owner of a stream file containing the save records storing the object(s) that you have saved. This is all very fine, though not very useful unless you have an option to reverse the process and restore the saved object(s) from the stream file.
To fulfill that objective, I’ve written the Restore Object from Stream File (RSTOBJSTMF) command, which incidentally also helps me demonstrate the use of the Restore from Application (QaneRsta) API and the related Restore from Application exit program. Understanding how the involved APIs and exit programs work and interact provides you with the option of adapting or changing the save and restore utilities I present here, to meet your own requirements.
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