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

Interface VirtualDataWindowForge

public interface VirtualDataWindowForge
Factory for VirtualDataWindow.

Register an implementation of this interface with the runtimebefore use: configuration.addPlugInVirtualDataWindow("test", "vdw", SupportVirtualDWFactory.class.getName());

  • Method Summary

    Modifier and Type
    Method
    Description
    VirtualDataWindowFactoryMode
    getFactoryMode()
    Describes to the compiler how it should manage code for the virtual data window factory.
    Set<String>
    getUniqueKeyPropertyNames()
    Return the names of properties that taken together (combined, composed, not individually) are the unique keys of a row, return null if there are no unique keys that can be identified.
    void
    initialize(VirtualDataWindowForgeContext initializeContext)
    Invoked once after instantiation of the forge, exactly once per named window.

  • Method Details

    • initialize

      void initialize(VirtualDataWindowForgeContext initializeContext)
      Invoked once after instantiation of the forge, exactly once per named window.
      Parameters:
      initializeContext - provides contextual information such as event type, named window name and parameters.

    • getFactoryMode

      VirtualDataWindowFactoryMode getFactoryMode()
      Describes to the compiler how it should manage code for the virtual data window factory.
      Returns:
      mode object

    • getUniqueKeyPropertyNames

      Set<String> getUniqueKeyPropertyNames()
      Return the names of properties that taken together (combined, composed, not individually) are the unique keys of a row, return null if there are no unique keys that can be identified.
      Returns:
      set of unique key property names