Package org.apache.zookeeper.metrics
Interface Counter
- All Known Implementing Classes:
SimpleCounter
public interface Counter
A counter refers to a value which can only increase.
Usually the value is reset when the process starts.
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Method Summary
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Method Details
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inc
default void inc()Increment the value by one.This method is thread safe, The MetricsProvider will take care of synchronization.
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add
void add(long delta) Increment the value by a given amount.This method is thread safe, The MetricsProvider will take care of synchronization.
- Parameters:
delta
- amount to increment, this cannot be a negative number.
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get
long get()Get the current value held by the counter.This method is thread safe, The MetricsProvider will take care of synchronization.
- Returns:
- the current value
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