com.bigdata.counters.query
Interface ICounterSelector

All Known Implementing Classes:

CounterSetBTreeSelector, CounterSetSelector

public interface ICounterSelector

Interface for selecting counters.

Version:

$Id: ICounterSelector.java 2265 2009-10-26 12:51:06Z thompsonbry $

Author:

Bryan Thompson

Method Summary

ICounter[]

selectCounters(int depth, Pattern pattern, long fromTime, long toTime, PeriodEnum period) Selects and returns a collection of performance counters with history.

Method Detail

selectCounters

ICounter[] selectCounters(int depth,
                          Pattern pattern,
                          long fromTime,
                          long toTime,
                          PeriodEnum period)

Selects and returns a collection of performance counters with history.

Parameters:

depth - When non-ZERO, this specifies a constraint on the maximum depth for a counter may can be selected.

pattern - A regular expression which must be satisified (optional).

fromTime - The inclusive lower bound in milliseconds of the performance counter timestamps which will be selected.

toTime - The exclusive upper bound in milliseconds of the performance counter timestamps which will be selected.

period - The unit of aggregation for the selected performance counters.

Returns:

The selected performance counters.