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viewmanager_properties.htm
Navigation:  ABC Library Reference > ViewManager > ViewManager Properties >====== ViewManager Properties C6H0009.jpg ====== Previous pageReturn to chapter overviewNext page

The ViewManager properties include references to the specific view being managed, as well as several flags or switches that tell the ViewManager how to manage the referenced view.

The references are to the VIEW, the primary FILE's RelationManager object, and the VIEW's sort information. These references allow the otherwise generic ViewManager object to process a specific view.

The processing switches include buffering parameters that allow asynchronous read-ahead buffering of pages and saving pages of already read records. This buffering provides instant response for procedures displaying pages of records already read, and can also minimize network traffic for Client/Server programs by reducing packets.

Each of these properties is fully described below.

Order (sort, range-limit, and filter information)

PagesAhead (buffered pages)

PagesBehind (buffered pages)

PageSize (buffer page size)

Primary (the primary file RelationManager )

TimeOut (buffered pages freshness)

View (the managed VIEW)

viewmanager_properties.htm.txt · Last modified: 2021/04/15 15:57 by 127.0.0.1