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

Interface for observing when an event expression needs to Start (by adding the first listener). The publishing event expression supplies the callback used for indicating matches. The implementation supplies as a return value the callback to use to Stop the event expression.

Namespace: net.esper.pattern
Assembly:   NEsper (in NEsper.dll)

Syntax

Visual Basic (Declaration)
Public Interface PatternStarter
C#
public interface PatternStarter
Visual C++
public interface class PatternStarter