Estimating Pageable Map Storage › Determining the Number of Pages per Pageable Map

Determining the Number of Pages per Pageable Map

The maximum number of pages that a pageable map can have in a paging session is calculated by multiplying the following runtime values:

• The maximum number of times the detail occurrence can be repeated for the entire map, as determined by the data the pageable map is to retrieve.

  For example, a pageable map is designed to display the names and identification numbers of all employees that belong to the department selected by the terminal operator at runtime. The maximum number of times the detail occurrence can be repeated for the map is determined by the number of employees in the largest available department.

• The number of times the detail occurrence can be mapped out in the detail area for the map, as calculated from the following values:
  • The number of screen lines available for the detail area at runtime
  • The number of screen lines in the detail occurrence

  The method for determining the number of times the detail occurrence can be mapped out in the detail area is presented in Estimating the Amount of Storage per Map Page earlier in this section.

Important: It is advisable to plan for a reasonable amount of short-term growth when estimating the number of pages per pageable map.