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CountProjectionExpression Class

Count of the (distinct) values returned by an expression, equivalent to "count(distinct property)"
Inheritance Hierarchy
SystemObject
  com.espertech.esper.common.client.sodaExpressionBase
    com.espertech.esper.common.client.sodaCountProjectionExpression

Namespace:  com.espertech.esper.common.client.soda
Assembly:  NEsper.Common (in NEsper.Common.dll) Version: 8.0.0.0
Syntax
C#
[SerializableAttribute]
public class CountProjectionExpression : ExpressionBase

The CountProjectionExpression type exposes the following members.

Constructors
  NameDescription
Public methodCountProjectionExpression
Ctor.
Public methodCountProjectionExpression(Boolean)
Ctor - for use to create an expression tree, without inner expression
Public methodCountProjectionExpression(Expression, Boolean)
Ctor - adds the expression to project.
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Properties
  NameDescription
Public propertyChildren
Returns the list of sub-expressions to the current expression.
(Inherited from ExpressionBase.)
Public propertyDistinct
Returns true if the projection considers distinct values only.
Public propertyIsDistinct
Returns true if the projection considers distinct values only.
Public propertyPrecedence (Overrides ExpressionBasePrecedence.)
Public propertyTreeObjectName (Inherited from ExpressionBase.)
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Methods
  NameDescription
Public methodAddChild
Adds a new child expression to the current expression.
(Inherited from ExpressionBase.)
Public methodSetDistinct
Set the distinct flag indicating the projection considers distinct values only.
Public methodToEPL (Inherited from ExpressionBase.)
Public methodToPrecedenceFreeEPL (Overrides ExpressionBaseToPrecedenceFreeEPL(TextWriter).)
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See Also