Documentation:OCLOperators ExecutePS: Difference between revisions

OCLOperators ExecutePS

Latest revision as of 22:44, 12 March 2025

This page was created by Hans.karlsen@mdriven.net on 2018-07-13. Last edited by Charles@mdriven.net on 2025-03-12.

NOTE: Consider using <Class>.PSEval instead of this for new development

selfVM.ExecutePS() is enabled to use the power and speed of the database to find a subset of objects of a certain type in a ViewModel.

In the example below, ExecutePS is used to look up License objects with PS (avoiding traversing all existing in memory).

The PS-evaluated expression (translated to SQL and executed in DB) is defined in a ViewModelColumn of its own that is not referenced by any UI.

ExecutePS will look for MaxFetch taggedvalue on the root level column and limit returned values.

@@ Line 1: / Line 1: @@
-selfVM.ExecutePS() is used to use the power and speed of the database to find a subset of objects of a certain type in a ViewModel.
+<message>Write the content here to display this box</message>
+==== NOTE: Consider using [[Documentation:OCLOperators PSEval|<Class>.PSEval]] instead of this for new development ====
+selfVM.ExecutePS() is enabled to use the power and speed of the database to find a subset of objects of a certain type in a ViewModel.
-In the example below the ExecutePS is used to look up License objects with ps (avoiding traversing all existing in memory).
+In the example below, ExecutePS is used to look up License objects with PS (avoiding traversing all existing in memory).
-The PS-evaluated expression (translated to sql and executed in DB) is defined in a ViewModelColumn of its own that is not referenced by any UI
+The PS-evaluated expression (translated to SQL and executed in DB) is defined in a ViewModelColumn of its own that is not referenced by any UI.
-ExecutePS will look for MaxFetch taggedvalue on root level column and limit returned values-
+ExecutePS will look for MaxFetch taggedvalue on the root level column and limit returned values.
-[[File:2018-07-13 14h41 13.png|none|thumb|692x692px]]
+[[File:2018-07-13 14h41 13.png|none|thumb|692x692px]]See also: [[Documentation:How to use the ExecutePS function in selfVM|How_to_use_the_ExecutePS_function_in_selfVM]]
+{{Edited|July|12|2025}}
+[[Category:OCLOperators]]
+[[Category:OCL ViewModel Operators]]