This tab provides several controls for managing instances of this data page on the clipboard.
Load management controls are displayed for read-only pages only. For editable data pages, the only option displayed is Clear Data Page.
Click Clear Data Page to remove from the clipboard all instances of this data page.
If the page is parameterized, you have an option to delete all instances or only those with specific parameter values.
The connector, report definition, or other load mechanism executes the first time any requestor within the scope references the read-only data page (such as to access the value of a property, or to test whether a property is present).
A system-wide refresh can take up to five minutes.
Field |
Description |
| Reload once per interaction |
This option is available only for data pages with a scope of Select the check box to cause the Pega Platform to refresh the page exactly once per user interaction. When selected, the system ignores any values in the Reload if older than and Do not reload when fields at run time . For Repeat Grids that have Reload once per interaction enabled, and that also use data pages as sources, the sorting order is lost when the Refresh List action is triggered. |
| Do not reload when |
Optional: Identify the when rule to be evaluated when a requestor accesses a page with a scope of If the when rule evaluates to false, the page contents are refreshed, but never more than once per user interaction. |
| Reload if older than |
Optional: Enter the amount of time in days, hours, minutes, and seconds, after which the data page is considered expired. The timer starts when the page is first loaded, not from the time of last access. The data page is refreshed only when another access request is made after the expiration time, and is never refreshed more than once per user interaction. For example, assume a reload time of ten minutes:
|
| Restricted feature set for high throughput |
Optional. By default, the complete feature set for high-speed read-only data pages is implemented on the clipboard. Select this option to use a restricted feature set when high-speed read-only data pages are impacting system performance. For more information about the unsupported features, see High-speed data page support on the PDN. |
For read-only data pages with a scope of Requestor or Node, select the Clear pages after non-use check box to force the system to delete the clipboard instances of the data page after an interval passes with no access. Subsequent attempts by a requestor to access the data pages cause the pages to reload. This setting does not apply to editable data pages.
When selected, this setting has different effects depending on the scope of the data page:
Read-only data pages are never passivated. If a requestor or thread is idle and gets passivated, all read-only data pages in that requestor or thread are cleared and reloaded the next time they are referenced, whether or not Clear pages after non-use is selected.