Using the File Class

The file layout class enables you to perform file input and output operations with Application Engine using PeopleCode. A file object enables you to open a file (for reading or writing), read data from a file, or write data to it. Using the combination of the file class and Application Engine provides an effective method to integrate (or exchange) the data stored in a legacy system with your PeopleSoft system. The file class facilitates the creation of a flat file that both your legacy system and Application Engine programs support.

An Application Engine program running on the application server uses a file object to read the file sent from the legacy system and to translate it so that the file can update affected PeopleSoft application tables. For the PeopleSoft system and the legacy system to communicate, you first must construct a file object that both systems can use to insert and read data.

Attain rowset and record access for a file using a file layout definition. You create the file layout definition in Application Designer, and it acts as a template for the file that both systems read from and write to. This file layout definition simplifies reading, writing, and manipulating complex transaction data with PeopleCode.

Generally, use the file class and Application Engine combination when you cannot implement the PeopleSoft Integration Broker solution.