com.espertech.esper.common.client.hook.vdw

Interface VirtualDataWindowFactory

public interface VirtualDataWindowFactory

Factory for virtual data windows.

Method Summary

Modifier and Type	Method and Description
VirtualDataWindow	create(VirtualDataWindowContext context) Invoked for each context partition (or once if not using contexts), return a virtual data window to handle the specific event type, named window or paramaters as provided in the context.
void	destroy() Invoked upon undeployment of the virtual data window.
void	initialize(VirtualDataWindowFactoryContext initializeContext) Invoked after instantiation of the factory, exactly once per named window.

Method Detail

initialize

void initialize(VirtualDataWindowFactoryContext initializeContext)

Invoked after instantiation of the factory, exactly once per named window.

Parameters:

initializeContext - provides contextual information such as event type, named window name and parameters.

create

VirtualDataWindow create(VirtualDataWindowContext context)

Invoked for each context partition (or once if not using contexts), return a virtual data window to handle the specific event type, named window or paramaters as provided in the context.

This method is invoked for each named window instance after the initialize method. If using context partitions, the method is invoked once per context partition per named window.

Parameters:

context - provides contextual information such as event type, named window name and parameters and including context partition information

Returns:

virtual data window

destroy

void destroy()

Invoked upon undeployment of the virtual data window.