Package org.opennms.netmgt.dao.api

Interface ServiceTracker

  • All Known Implementing Classes:
    DefaultServiceTracker
    public interface ServiceTracker
    Tracking services is a pain - use this service to handle it for you.

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      java.io.Closeable trackService​(java.lang.String serviceName, ServiceTracker.ServiceListener listener)
      Issues callbacks to the given listener for services that: 1) Have the given service name Callbacks are expected to be issued immediately for all existing services that match the criteria.
      java.io.Closeable trackServiceMatchingFilterRule​(java.lang.String serviceName, java.lang.String filterRule, ServiceTracker.ServiceListener listener)
      Issues callbacks to the given listener for services that: 1) Have the given service name 2) Match the given filter rule Callbacks are expected to be issued immediately for all existing services that match the criteria.

    • Method Detail

      • trackServiceMatchingFilterRule

        java.io.Closeable trackServiceMatchingFilterRule​(java.lang.String serviceName,
                                                 java.lang.String filterRule,
                                                 ServiceTracker.ServiceListener listener)
        Issues callbacks to the given listener for services that: 1) Have the given service name 2) Match the given filter rule Callbacks are expected to be issued immediately for all existing services that match the criteria. Additional callback will be made as services are added/removed.
        Parameters:
        serviceName - only interfaces with the given service name attached will be considered
        filterRule - only interfaces that match the given filter will be considered if null, or empty the filter will match everything
        listener - used for callbacks
        Returns:
        close when done watching

      • trackService

        java.io.Closeable trackService​(java.lang.String serviceName,
                               ServiceTracker.ServiceListener listener)
        Issues callbacks to the given listener for services that: 1) Have the given service name Callbacks are expected to be issued immediately for all existing services that match the criteria. Additional callback will be made as services are added/removed.
        Parameters:
        serviceName - only interfaces with the given service name attached will be considered
        listener - used for callbacks
        Returns:
        close when done watching