Package org.terracotta.statistics

Interface SourceStatistic<T extends ChainedObserver>

Type Parameters:
T - Supported derived observer type
All Known Subinterfaces:
OperationStatistic<T>
All Known Implementing Classes:
AbstractOperationStatistic, AbstractSourceStatistic, GeneralOperationStatistic, MappedOperationStatistic, OperationResultFilter, OperationResultSampler, StatisticMapper, ZeroOperationStatistic
public interface SourceStatistic<T extends ChainedObserver>
Source statistic implementations support derived statistics.

Derived statistics can be registered and will then receive the relevant observer calls to update their status.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    addDerivedStatistic(T derived)
    Register the given Observer to be called by this SourceStatistic
    Collection<T>
    getDerivedStatistics()
    Retrieve all registered statistics.
    void
    removeDerivedStatistic(T derived)
    Remove the given registered Observer from this SourceStatistic.

  • Method Details

    • addDerivedStatistic

      void addDerivedStatistic(T derived)
      Register the given Observer to be called by this SourceStatistic
      Parameters:
      derived - statistic to be registered

    • removeDerivedStatistic

      void removeDerivedStatistic(T derived)
      Remove the given registered Observer from this SourceStatistic.
      Parameters:
      derived - statistic to be removed

    • getDerivedStatistics

      Collection<T> getDerivedStatistics()
      Retrieve all registered statistics.
      Returns:
      an unmodifiable collection of all derived statistics