Latest revision as of 09:47, 20 November 2023

WhereExpFragment

Represents a data cache specification column with user data.

Inherits from object

(string expression "Expression for the fragment.") - Create a fragment with the given expression. This is an expensive operation when called many times
(string selector "Selector expression of the where expression, e.g. "count()".", WhereExpFragment whereExp "Left hand side of the operation.") - Create a fragment as a complete where expression.
(WhereExpFragment fragment "Fragment to replace values in.", Dictionary replacement "Look for keys and replace with the constants.") - Create a new fragment where the given values has been replaced, e.g. col > DATES + {"DATES":#2020...#} => col > #2020...#.
(int operation "See WHEREEXPFRAGMENT_xxx, e.g. WHEREEXPFRAGMENT_AND.", WhereExpFragment lhs "Left hand side of the operation.", WhereExpFragment rhs "Right hand side of the operation.") - Create a new fragment as an operation between two other fragments.

Empty AddDependency(string key "Key in Dictionary that this expression depends on") - If you access another cell, you need to inform the engine about this, so it can determine which cells to execute in parallel
(From object) string ToString() - The string representation of the object.

string ObjectTypeName { get; } - The name of the type of object.
(From object) TypeInformation TypeInformation { get; } - Get information about this class.

@@ Line 24: / Line 24: @@
 {{CGscriptProperties_Template|ReturnType=TypeInformation|Name=<nowiki>TypeInformation</nowiki>|HasGetter=1|Inherited=object|Description=<nowiki>Get information about this class.</nowiki>}}
 }}
-=== <span style="color:#DF8621">'''Examples'''</span> ===
-<source lang="javascript">
-DataCacheSpecification dcs = new DataCacheSpecification (dcsRId);
-Dictionary exp = {
-	"Total": new WhereExpFragment (WHEREEXPFRAGMENT_ADD, new WhereExpFragment ("count() where Gender==1"), new WhereExpFragment ("count() where Gender==2")),
-	"Male": new WhereExpFragment ("count()", new WhereExpFragment ("Gender==1")),
-	"Female": new WhereExpFragment ("count() where Gender==2")};
-dcs.EvalWhereExps(exp);
-</source>