Custom Functions allow you to extend the search and browse capabilities of Object List+.

Numerous custom functions are provided by IET and you can also add your own functions. This allows you to provide an easy, secure and efficient way of providing customised queries to developers.

Unlike simple SQL queries which can often restrict the scope of the query, Custom Functions are developed in user modifiable exits (using C or COBOL) and therefore offer limitless possibilities.

In the example below, a custom function is shown that displays action blocks that have READ statements where an attribute is qualified against another attribute of a different length. This type of READ is likely to perform poorly, so this custom function can be used to perform quality assurance checks. This is an example of a custom function that a) would not be possible with a simple SQL query and b) returns nested data to make it more readable.