[This topic is pre-release documentation and is subject to change in future releases. Blank topics are included as placeholders.]

Returns matched events for a event to look up for. Never returns an empty result set, always returns null to indicate no results.

Namespace: net.esper.eql.join.exec
Assembly:   NEsper (in NEsper.dll)

Syntax

Visual Basic (Declaration)
Function Lookup ( _
	ev As EventBean _
) As ISet(Of EventBean)
C#
ISet<EventBean> Lookup (
	EventBean ev
)
Visual C++
ISet<EventBean^>^ Lookup (
	EventBean^ ev
)

Parameters

ev
net.esper.events.EventBean
to look up

Return Value

set of matching events, or null if none matching